Upgrading fully working Unifi AC Mesh from 18.06.1 to 18.06.2 - kernel stays at 4.9.120 / no WiFi

Installing and Using OpenWrt
1

Hi,
i've sucessfully installed 18.06.1 to the Unifi AC Mesh a few months ago. I'm used to upgrading a openwrt configured device via gui in luci. So I wanted to upgrade to 18.06.2. Unfortunately this seems to cause problems. I'm aware, that I have to install ath10k-firmware-qca988x and kmod-ath10k (these seem to be available already after update).
Wifi doesn't work after the update.
Suggestions:
Kernelversions stays at 4.9.120 after the update. Probably the old firmware is stored somewhere and this kernel is been used (kernel0 kernel1).

Is it save to go into recovery and flash both kernels via mtd write? Is there a gui way?

Thanks for helping,
Ray

2

Neither band works?

You will get kernel crashes in the log if the kmods don't match the kernel. If it is a dual kernel situation, try flashing the new firmware twice.

3

Thanks for your quick reply. I tried reinstalling three times - no change. Still old kernel, still no wifi working (both). I only flashed via gui

I can't see anything strange in sys nor kernel log

Thu May  2 17:12:10 2019 kern.notice kernel: [    0.000000] Linux version 4.9.120 (buildbot@builds-03.infra.lede-project.org) (gcc version 7.3.0 (OpenWrt GCC 7.3.0 r7102-3f3a2c9) ) #0 Thu Aug 16 07:51:15 2018
Thu May  2 17:12:10 2019 kern.debug kernel: [    0.000000] MyLoader: sysp=aaaaaaaa, boardp=aaaaaaaa, parts=aaaaaaaa
Thu May  2 17:12:10 2019 kern.info kernel: [    0.000000] bootconsole [early0] enabled
Thu May  2 17:12:10 2019 kern.info kernel: [    0.000000] CPU0 revision is: 00019750 (MIPS 74Kc)
Thu May  2 17:12:10 2019 kern.info kernel: [    0.000000] SoC: Qualcomm Atheros QCA956X ver 1 rev 0
Thu May  2 17:12:10 2019 kern.info kernel: [    0.000000] Determined physical RAM map:
Thu May  2 17:12:10 2019 kern.info kernel: [    0.000000]  memory: 08000000 @ 00000000 (usable)
Thu May  2 17:12:10 2019 kern.info kernel: [    0.000000] Initrd not found or empty - disabling initrd
Thu May  2 17:12:10 2019 kern.warn kernel: [    0.000000] Primary instruction cache 64kB, VIPT, 4-way, linesize 32 bytes.
Thu May  2 17:12:10 2019 kern.warn kernel: [    0.000000] Primary data cache 32kB, 4-way, VIPT, cache aliases, linesize 32 bytes
Thu May  2 17:12:10 2019 kern.info kernel: [    0.000000] Zone ranges:
Thu May  2 17:12:10 2019 kern.info kernel: [    0.000000]   Normal   [mem 0x0000000000000000-0x0000000007ffffff]
Thu May  2 17:12:10 2019 kern.info kernel: [    0.000000] Movable zone start for each node
Thu May  2 17:12:10 2019 kern.info kernel: [    0.000000] Early memory node ranges
Thu May  2 17:12:10 2019 kern.info kernel: [    0.000000]   node   0: [mem 0x0000000000000000-0x0000000007ffffff]
Thu May  2 17:12:10 2019 kern.info kernel: [    0.000000] Initmem setup node 0 [mem 0x0000000000000000-0x0000000007ffffff]
Thu May  2 17:12:10 2019 kern.debug kernel: [    0.000000] On node 0 totalpages: 32768
Thu May  2 17:12:10 2019 kern.debug kernel: [    0.000000] free_area_init_node: node 0, pgdat 80442044, node_mem_map 81000020
Thu May  2 17:12:10 2019 kern.debug kernel: [    0.000000]   Normal zone: 256 pages used for memmap
Thu May  2 17:12:10 2019 kern.debug kernel: [    0.000000]   Normal zone: 0 pages reserved
Thu May  2 17:12:10 2019 kern.debug kernel: [    0.000000]   Normal zone: 32768 pages, LIFO batch:7
Thu May  2 17:12:10 2019 kern.debug kernel: [    0.000000] pcpu-alloc: s0 r0 d32768 u32768 alloc=1*32768
Thu May  2 17:12:10 2019 kern.debug kernel: [    0.000000] pcpu-alloc: [0] 0
Thu May  2 17:12:10 2019 kern.info kernel: [    0.000000] Built 1 zonelists in Zone order, mobility grouping on.  Total pages: 32512
Thu May  2 17:12:10 2019 kern.notice kernel: [    0.000000] Kernel command line:  board=UBNT-UF-AC-LITE mtdparts=spi0.0:384k(u-boot)ro,64k(u-boot-env)ro,7744k(firmware),7744k(ubnt-airos)ro,128k(bs),256k(cfg)ro,64k(EEPROM)ro console=ttyS0,115200 rootfstype=squashfs noinitrd
Thu May  2 17:12:10 2019 kern.info kernel: [    0.000000] PID hash table entries: 512 (order: -1, 2048 bytes)
Thu May  2 17:12:10 2019 kern.info kernel: [    0.000000] Dentry cache hash table entries: 16384 (order: 4, 65536 bytes)
Thu May  2 17:12:10 2019 kern.info kernel: [    0.000000] Inode-cache hash table entries: 8192 (order: 3, 32768 bytes)
Thu May  2 17:12:10 2019 kern.info kernel: [    0.000000] Writing ErrCtl register=00000000
Thu May  2 17:12:10 2019 kern.info kernel: [    0.000000] Readback ErrCtl register=00000000
Thu May  2 17:12:10 2019 kern.info kernel: [    0.000000] Memory: 124996K/131072K available (3363K kernel code, 172K rwdata, 444K rodata, 300K init, 219K bss, 6076K reserved, 0K cma-reserved)
Thu May  2 17:12:10 2019 kern.info kernel: [    0.000000] SLUB: HWalign=32, Order=0-3, MinObjects=0, CPUs=1, Nodes=1
Thu May  2 17:12:10 2019 kern.info kernel: [    0.000000] NR_IRQS:51
Thu May  2 17:12:10 2019 kern.info kernel: [    0.000000] Clocks: CPU:775.000MHz, DDR:650.000MHz, AHB:258.333MHz, Ref:25.000MHz
Thu May  2 17:12:10 2019 kern.info kernel: [    0.000000] clocksource: MIPS: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 4932285024 ns
Thu May  2 17:12:10 2019 kern.info kernel: [    0.000007] sched_clock: 32 bits at 387MHz, resolution 2ns, wraps every 5541893118ns
Thu May  2 17:12:10 2019 kern.info kernel: [    0.008223] Calibrating delay loop... 385.84 BogoMIPS (lpj=1929216)
Thu May  2 17:12:10 2019 kern.info kernel: [    0.071034] pid_max: default: 32768 minimum: 301
Thu May  2 17:12:10 2019 kern.info kernel: [    0.075989] Mount-cache hash table entries: 1024 (order: 0, 4096 bytes)
Thu May  2 17:12:10 2019 kern.info kernel: [    0.082967] Mountpoint-cache hash table entries: 1024 (order: 0, 4096 bytes)
Thu May  2 17:12:10 2019 kern.info kernel: [    0.092726] clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns
Thu May  2 17:12:10 2019 kern.info kernel: [    0.103125] futex hash table entries: 256 (order: -1, 3072 bytes)
Thu May  2 17:12:10 2019 kern.info kernel: [    0.110597] NET: Registered protocol family 16
Thu May  2 17:12:10 2019 kern.info kernel: [    0.116614] MIPS: machine is Ubiquiti UniFi-AC-LITE/MESH
Thu May  2 17:12:10 2019 kern.warn kernel: [    0.359960] registering PCI controller with io_map_base unset
Thu May  2 17:12:10 2019 kern.warn kernel: [    0.366194] Can't analyze schedule() prologue at 803a5594
Thu May  2 17:12:10 2019 kern.info kernel: [    0.381505] PCI host bridge to bus 0000:00
Thu May  2 17:12:10 2019 kern.info kernel: [    0.385828] pci_bus 0000:00: root bus resource [mem 0x12000000-0x13ffffff]
Thu May  2 17:12:10 2019 kern.info kernel: [    0.393109] pci_bus 0000:00: root bus resource [io  0x0001]
Thu May  2 17:12:10 2019 kern.info kernel: [    0.398974] pci_bus 0000:00: root bus resource [??? 0x00000000 flags 0x0]
Thu May  2 17:12:10 2019 kern.info kernel: [    0.406130] pci_bus 0000:00: No busn resource found for root bus, will use [bus 00-ff]
Thu May  2 17:12:10 2019 kern.debug kernel: [    0.414498] pci 0000:00:00.0: [168c:003c] type 00 class 0x028000
Thu May  2 17:12:10 2019 kern.err kernel: [    0.414508] pci 0000:00:00.0: invalid calibration data
Thu May  2 17:12:10 2019 kern.debug kernel: [    0.419950] pci 0000:00:00.0: reg 0x10: [mem 0x00000000-0x001fffff 64bit]
Thu May  2 17:12:10 2019 kern.debug kernel: [    0.420000] pci 0000:00:00.0: reg 0x30: [mem 0x00000000-0x0000ffff pref]
Thu May  2 17:12:10 2019 kern.debug kernel: [    0.420068] pci 0000:00:00.0: supports D1
Thu May  2 17:12:10 2019 kern.debug kernel: [    0.420075] pci 0000:00:00.0: PME# supported from D0 D1 D3hot
Thu May  2 17:12:10 2019 kern.debug kernel: [    0.420244] pci_bus 0000:00: busn_res: [bus 00-ff] end is updated to 00
Thu May  2 17:12:10 2019 kern.info kernel: [    0.420266] pci 0000:00:00.0: BAR 0: assigned [mem 0x12000000-0x121fffff 64bit]
Thu May  2 17:12:10 2019 kern.info kernel: [    0.427986] pci 0000:00:00.0: BAR 6: assigned [mem 0x12200000-0x1220ffff pref]
Thu May  2 17:12:10 2019 kern.info kernel: [    0.435626] pci 0000:00:00.0: using irq 40 for pin 1
Thu May  2 17:12:10 2019 kern.info kernel: [    0.443656] clocksource: Switched to clocksource MIPS
Thu May  2 17:12:10 2019 kern.info kernel: [    0.449920] NET: Registered protocol family 2
Thu May  2 17:12:10 2019 kern.info kernel: [    0.455320] TCP established hash table entries: 1024 (order: 0, 4096 bytes)
Thu May  2 17:12:10 2019 kern.info kernel: [    0.462674] TCP bind hash table entries: 1024 (order: 0, 4096 bytes)
Thu May  2 17:12:10 2019 kern.info kernel: [    0.469416] TCP: Hash tables configured (established 1024 bind 1024)
Thu May  2 17:12:10 2019 kern.info kernel: [    0.476208] UDP hash table entries: 256 (order: 0, 4096 bytes)
Thu May  2 17:12:10 2019 kern.info kernel: [    0.482368] UDP-Lite hash table entries: 256 (order: 0, 4096 bytes)
Thu May  2 17:12:10 2019 kern.info kernel: [    0.489223] NET: Registered protocol family 1
Thu May  2 17:12:10 2019 kern.debug kernel: [    0.493882] PCI: CLS 0 bytes, default 32
Thu May  2 17:12:10 2019 kern.warn kernel: [    0.496288] Crashlog allocated RAM at address 0x3f00000
Thu May  2 17:12:10 2019 kern.info kernel: [    0.502722] workingset: timestamp_bits=30 max_order=15 bucket_order=0
Thu May  2 17:12:10 2019 kern.info kernel: [    0.515452] squashfs: version 4.0 (2009/01/31) Phillip Lougher
Thu May  2 17:12:10 2019 kern.info kernel: [    0.521599] jffs2: version 2.2 (NAND) (SUMMARY) (LZMA) (RTIME) (CMODE_PRIORITY) (c) 2001-2006 Red Hat, Inc.
Thu May  2 17:12:10 2019 kern.info kernel: [    0.540075] io scheduler noop registered
Thu May  2 17:12:10 2019 kern.info kernel: [    0.544245] io scheduler deadline registered (default)
Thu May  2 17:12:10 2019 kern.info kernel: [    0.550017] Serial: 8250/16550 driver, 16 ports, IRQ sharing enabled
Thu May  2 17:12:10 2019 kern.info kernel: [    0.558934] console [ttyS0] disabled
Thu May  2 17:12:10 2019 kern.info kernel: [    0.582773] serial8250.0: ttyS0 at MMIO 0x18020000 (irq = 11, base_baud = 1562500) is a 16550A
Thu May  2 17:12:10 2019 kern.info kernel: [    0.591871] console [ttyS0] enabled
Thu May  2 17:12:10 2019 kern.info kernel: [    0.599419] bootconsole [early0] disabled
Thu May  2 17:12:10 2019 kern.info kernel: [    0.613231] m25p80 spi0.0: mx25l12805d (16384 Kbytes)
Thu May  2 17:12:10 2019 kern.notice kernel: [    0.618532] 7 cmdlinepart partitions found on MTD device spi0.0
Thu May  2 17:12:10 2019 kern.notice kernel: [    0.624654] Creating 7 MTD partitions on "spi0.0":
Thu May  2 17:12:10 2019 kern.notice kernel: [    0.629605] 0x000000000000-0x000000060000 : "u-boot"
Thu May  2 17:12:10 2019 kern.notice kernel: [    0.636724] 0x000000060000-0x000000070000 : "u-boot-env"
Thu May  2 17:12:10 2019 kern.notice kernel: [    0.643946] 0x000000070000-0x000000800000 : "firmware"
Thu May  2 17:12:10 2019 kern.notice kernel: [    0.663385] 2 uimage-fw partitions found on MTD device firmware
Thu May  2 17:12:10 2019 kern.notice kernel: [    0.669550] 0x000000070000-0x0000001d0000 : "kernel"
Thu May  2 17:12:10 2019 kern.notice kernel: [    0.675848] 0x0000001d0000-0x000000800000 : "rootfs"
Thu May  2 17:12:10 2019 kern.notice kernel: [    0.682392] mtd: device 4 (rootfs) set to be root filesystem
Thu May  2 17:12:10 2019 kern.notice kernel: [    0.688321] 1 squashfs-split partitions found on MTD device rootfs
Thu May  2 17:12:10 2019 kern.notice kernel: [    0.694725] 0x000000450000-0x000000800000 : "rootfs_data"
Thu May  2 17:12:10 2019 kern.notice kernel: [    0.702067] 0x000000800000-0x000000f90000 : "ubnt-airos"
Thu May  2 17:12:10 2019 kern.notice kernel: [    0.709322] 0x000000f90000-0x000000fb0000 : "bs"
Thu May  2 17:12:10 2019 kern.notice kernel: [    0.715847] 0x000000fb0000-0x000000ff0000 : "cfg"
Thu May  2 17:12:10 2019 kern.notice kernel: [    0.722367] 0x000000ff0000-0x000001000000 : "EEPROM"
Thu May  2 17:12:10 2019 kern.info kernel: [    0.730052] libphy: Fixed MDIO Bus: probed
Thu May  2 17:12:10 2019 kern.info kernel: [    0.745005] libphy: ag71xx_mdio: probed
Thu May  2 17:12:10 2019 kern.info kernel: [    1.475198] ag71xx ag71xx.0: connected to PHY at ag71xx-mdio.0:04 [uid=004dd074, driver=Atheros 8031 ethernet]
Thu May  2 17:12:10 2019 kern.info kernel: [    1.486122] eth0: Atheros AG71xx at 0xb9000000, irq 4, mode:SGMII
Thu May  2 17:12:10 2019 kern.info kernel: [    1.493745] NET: Registered protocol family 10
Thu May  2 17:12:10 2019 kern.info kernel: [    1.501289] NET: Registered protocol family 17
Thu May  2 17:12:10 2019 kern.info kernel: [    1.505982] bridge: filtering via arp/ip/ip6tables is no longer available by default. Update your scripts to load br_netfilter if you need this.
Thu May  2 17:12:10 2019 kern.info kernel: [    1.519455] 8021q: 802.1Q VLAN Support v1.8
Thu May  2 17:12:10 2019 kern.info kernel: [    1.525371] hctosys: unable to open rtc device (rtc0)
Thu May  2 17:12:10 2019 kern.info kernel: [    1.535654] VFS: Mounted root (squashfs filesystem) readonly on device 31:4.
Thu May  2 17:12:10 2019 kern.info kernel: [    1.544594] Freeing unused kernel memory: 300K
Thu May  2 17:12:10 2019 kern.warn kernel: [    1.549180] This architecture does not have kernel memory protection.
Thu May  2 17:12:10 2019 user.info kernel: [    2.147140] init: Console is alive
Thu May  2 17:12:10 2019 user.info kernel: [    2.150843] init: - watchdog -
Thu May  2 17:12:10 2019 user.info kernel: [    2.164730] init: - preinit -
Thu May  2 17:12:10 2019 kern.notice kernel: [    2.573669] random: fast init done
Thu May  2 17:12:10 2019 kern.info kernel: [    3.157737] IPv6: ADDRCONF(NETDEV_UP): eth0: link is not ready
Thu May  2 17:12:10 2019 kern.notice kernel: [    3.182103] random: procd: uninitialized urandom read (4 bytes read)
Thu May  2 17:12:10 2019 kern.info kernel: [    6.327881] eth0: link up (1000Mbps/Full duplex)
Thu May  2 17:12:10 2019 kern.info kernel: [    6.332682] IPv6: ADDRCONF(NETDEV_CHANGE): eth0: link becomes ready
Thu May  2 17:12:10 2019 kern.notice kernel: [    6.442733] jffs2: notice: (398) jffs2_build_xattr_subsystem: complete building xattr subsystem, 0 of xdatum (0 unchecked, 0 orphan) and 0 of xref (0 dead, 0 orphan) found.
Thu May  2 17:12:10 2019 user.info kernel: [    6.460035] mount_root: switching to jffs2 overlay
Thu May  2 17:12:10 2019 user.warn kernel: [    6.477828] urandom-seed: Seeding with /etc/urandom.seed
Thu May  2 17:12:10 2019 kern.info kernel: [    6.578613] eth0: link down
Thu May  2 17:12:10 2019 user.info kernel: [    6.591065] procd: - early -
Thu May  2 17:12:10 2019 user.info kernel: [    6.594712] procd: - watchdog -
Thu May  2 17:12:10 2019 user.info kernel: [    7.205376] procd: - watchdog -
Thu May  2 17:12:10 2019 user.info kernel: [    7.208857] procd: - ubus -
Thu May  2 17:12:10 2019 kern.notice kernel: [    7.309413] random: ubusd: uninitialized urandom read (4 bytes read)
Thu May  2 17:12:10 2019 kern.notice kernel: [    7.318589] random: ubusd: uninitialized urandom read (4 bytes read)
Thu May  2 17:12:10 2019 kern.notice kernel: [    7.326029] random: ubusd: uninitialized urandom read (4 bytes read)
Thu May  2 17:12:10 2019 user.info kernel: [    7.333466] procd: - init -
Thu May  2 17:12:11 2019 user.notice dnsmasq: DNS rebinding protection is active, will discard upstream RFC1918 responses!
Thu May  2 17:12:11 2019 user.notice dnsmasq: Allowing 127.0.0.0/8 responses
Thu May  2 17:12:11 2019 daemon.info dnsmasq[631]: started, version 2.80 cachesize 150
Thu May  2 17:12:11 2019 daemon.info dnsmasq[631]: DNS service limited to local subnets
Thu May  2 17:12:11 2019 daemon.info dnsmasq[631]: compile time options: IPv6 GNU-getopt no-DBus no-i18n no-IDN DHCP no-DHCPv6 no-Lua TFTP no-conntrack no-ipset no-auth no-DNSSEC no-ID loop-detect inotify dumpfile
Thu May  2 17:12:11 2019 daemon.info dnsmasq[631]: using local addresses only for domain test
Thu May  2 17:12:11 2019 daemon.info dnsmasq[631]: using local addresses only for domain onion
Thu May  2 17:12:11 2019 daemon.info dnsmasq[631]: using local addresses only for domain localhost
Thu May  2 17:12:11 2019 daemon.info dnsmasq[631]: using local addresses only for domain local
Thu May  2 17:12:11 2019 daemon.info dnsmasq[631]: using local addresses only for domain invalid
Thu May  2 17:12:11 2019 daemon.info dnsmasq[631]: using local addresses only for domain bind
Thu May  2 17:12:11 2019 daemon.info dnsmasq[631]: using local addresses only for domain lan
Thu May  2 17:12:11 2019 daemon.warn dnsmasq[631]: no servers found in /tmp/resolv.conf.auto, will retry
Thu May  2 17:12:11 2019 daemon.info dnsmasq[631]: read /etc/hosts - 4 addresses
Thu May  2 17:12:11 2019 daemon.info dnsmasq[631]: read /tmp/hosts/dhcp.cfg01411c - 0 addresses
Thu May  2 17:12:12 2019 authpriv.info dropbear[658]: Not backgrounding
Thu May  2 17:12:13 2019 user.notice : Added device handler type: tunnel
Thu May  2 17:12:13 2019 user.notice : Added device handler type: Network device
Thu May  2 17:12:13 2019 user.notice : Added device handler type: bridge
Thu May  2 17:12:13 2019 user.notice : Added device handler type: veth
Thu May  2 17:12:13 2019 user.notice : Added device handler type: macvlan
Thu May  2 17:12:13 2019 user.notice : Added device handler type: 8021ad
Thu May  2 17:12:13 2019 user.notice : Added device handler type: 8021q
Thu May  2 17:12:13 2019 daemon.notice procd: /etc/init.d/network: 'radio1' is disabled
Thu May  2 17:12:13 2019 daemon.notice procd: /etc/init.d/network: 'radio1' is disabled
Thu May  2 17:12:14 2019 cron.info crond[777]: crond (busybox 1.28.4) started, log level 8
Thu May  2 17:12:15 2019 user.notice ucitrack: Setting up /etc/config/network reload dependency on /etc/config/dhcp
Thu May  2 17:12:15 2019 user.notice ucitrack: Setting up /etc/config/network reload dependency on /etc/config/radvd
Thu May  2 17:12:15 2019 user.notice ucitrack: Setting up /etc/config/wireless reload dependency on /etc/config/network
Thu May  2 17:12:15 2019 user.notice ucitrack: Setting up /etc/config/firewall reload dependency on /etc/config/luci-splash
Thu May  2 17:12:15 2019 user.notice ucitrack: Setting up /etc/config/firewall reload dependency on /etc/config/qos
Thu May  2 17:12:15 2019 user.notice ucitrack: Setting up /etc/config/firewall reload dependency on /etc/config/miniupnpd
Thu May  2 17:12:15 2019 user.notice ucitrack: Setting up /etc/config/dhcp reload dependency on /etc/config/odhcpd
Thu May  2 17:12:16 2019 user.notice ucitrack: Setting up non-init /etc/config/fstab reload handler: /sbin/block mount
Thu May  2 17:12:16 2019 user.notice ucitrack: Setting up /etc/config/system reload trigger for non-procd /etc/init.d/led
Thu May  2 17:12:16 2019 user.notice ucitrack: Setting up /etc/config/system reload dependency on /etc/config/luci_statistics
Thu May  2 17:12:16 2019 user.notice ucitrack: Setting up /etc/config/system reload dependency on /etc/config/dhcp
Thu May  2 17:12:17 2019 daemon.warn netifd: You have delegated IPv6-prefixes but haven't assigned them to any interface. Did you forget to set option ip6assign on your lan-interfaces?
Thu May  2 17:12:17 2019 kern.info kernel: [   15.812188] br-lan: port 1(eth0) entered blocking state
Thu May  2 17:12:17 2019 kern.info kernel: [   15.817635] br-lan: port 1(eth0) entered disabled state
Thu May  2 17:12:17 2019 kern.info kernel: [   15.823318] device eth0 entered promiscuous mode
Thu May  2 17:12:17 2019 kern.info kernel: [   15.851796] IPv6: ADDRCONF(NETDEV_UP): br-lan: link is not ready
Thu May  2 17:12:17 2019 daemon.notice netifd: Interface 'lan' is enabled
Thu May  2 17:12:17 2019 daemon.notice netifd: Interface 'loopback' is enabled
Thu May  2 17:12:17 2019 daemon.notice netifd: Interface 'loopback' is setting up now
Thu May  2 17:12:17 2019 daemon.notice netifd: Interface 'loopback' is now up
Thu May  2 17:12:17 2019 daemon.notice netifd: Network device 'lo' link is up
Thu May  2 17:12:17 2019 daemon.notice netifd: Interface 'loopback' has link connectivity
Thu May  2 17:12:17 2019 daemon.notice netifd: radio0 (943): Could not find PHY for device 'radio0'
Thu May  2 17:12:18 2019 daemon.notice netifd: radio0 (996): WARNING: Variable 'data' does not exist or is not an array/object
Thu May  2 17:12:18 2019 daemon.info procd: - init complete -
Thu May  2 17:12:20 2019 kern.info kernel: [   18.926668] eth0: link up (1000Mbps/Full duplex)
Thu May  2 17:12:20 2019 kern.info kernel: [   18.931482] br-lan: port 1(eth0) entered blocking state
Thu May  2 17:12:20 2019 kern.info kernel: [   18.936917] br-lan: port 1(eth0) entered forwarding state
Thu May  2 17:12:20 2019 daemon.notice netifd: Network device 'eth0' link is up
Thu May  2 17:12:20 2019 daemon.notice netifd: bridge 'br-lan' link is up
Thu May  2 17:12:20 2019 daemon.notice netifd: Interface 'lan' has link connectivity
Thu May  2 17:12:20 2019 daemon.notice netifd: Interface 'lan' is setting up now
Thu May  2 17:12:20 2019 kern.info kernel: [   18.943993] IPv6: ADDRCONF(NETDEV_CHANGE): br-lan: link becomes ready
Thu May  2 17:12:20 2019 daemon.notice netifd: lan (1056): udhcpc: started, v1.28.4
Thu May  2 17:12:20 2019 daemon.notice netifd: lan (1056): udhcpc: sending discover
Thu May  2 17:12:20 2019 daemon.notice netifd: lan (1056): udhcpc: sending select for 10.20.1.12
Thu May  2 17:12:20 2019 daemon.notice netifd: lan (1056): udhcpc: lease of 10.20.1.12 obtained, lease time 604800
Thu May  2 17:12:20 2019 daemon.notice netifd: Interface 'lan' is now up
Thu May  2 17:12:20 2019 daemon.info dnsmasq[631]: reading /tmp/resolv.conf.auto
Thu May  2 17:12:20 2019 daemon.info dnsmasq[631]: using local addresses only for domain test
Thu May  2 17:12:20 2019 daemon.info dnsmasq[631]: using local addresses only for domain onion
Thu May  2 17:12:20 2019 daemon.info dnsmasq[631]: using local addresses only for domain localhost
Thu May  2 17:12:20 2019 daemon.info dnsmasq[631]: using local addresses only for domain local
Thu May  2 17:12:20 2019 daemon.info dnsmasq[631]: using local addresses only for domain invalid
Thu May  2 17:12:20 2019 daemon.info dnsmasq[631]: using local addresses only for domain bind
Thu May  2 17:12:20 2019 daemon.info dnsmasq[631]: using local addresses only for domain lan
Thu May  2 17:12:20 2019 daemon.info dnsmasq[631]: using nameserver 10.20.1.1#53
Thu May  2 17:12:20 2019 daemon.info dnsmasq[631]: using nameserver 194.150.168.168#53
Thu May  2 17:12:20 2019 daemon.info dnsmasq[631]: using nameserver 212.82.226.212#53
Thu May  2 17:12:20 2019 user.notice firewall: Reloading firewall due to ifup of lan (br-lan)
Thu May  2 17:12:22 2019 daemon.info dnsmasq[631]: read /etc/hosts - 4 addresses
Thu May  2 17:12:22 2019 daemon.info dnsmasq[631]: read /tmp/hosts/dhcp.cfg01411c - 0 addresses
Thu May  2 17:15:35 2019 daemon.warn odhcpd[743]: DHCPV6 SOLICIT IA_NA from 00020000ab11ccfcb74b608065c3 on br-lan: no addresses available
Thu May  2 17:15:35 2019 daemon.info dnsmasq[631]: read /etc/hosts - 4 addresses
Thu May  2 17:15:35 2019 daemon.info dnsmasq[631]: read /tmp/hosts/odhcpd - 0 addresses
Thu May  2 17:15:35 2019 daemon.info dnsmasq[631]: read /tmp/hosts/dhcp.cfg01411c - 0 addresses
Thu May  2 17:17:11 2019 kern.notice kernel: [  129.345669] random: crng init done
Thu May  2 17:17:11 2019 kern.notice kernel: [  129.349190] random: 6 urandom warning(s) missed due to ratelimiting
Thu May  2 17:17:44 2019 daemon.warn odhcpd[743]: DHCPV6 SOLICIT IA_NA from 00020000ab11ccfcb74b608065c3 on br-lan: no addresses available
Thu May  2 17:17:47 2019 daemon.warn odhcpd[743]: DHCPV6 SOLICIT IA_NA from 000100012351dd8684c7ea896982 on br-lan: no addresses available
Thu May  2 17:19:38 2019 daemon.warn odhcpd[743]: DHCPV6 SOLICIT IA_NA from 00020000ab11ccfcb74b608065c3 on br-lan: no addresses available
Thu May  2 17:20:18 2019 daemon.warn odhcpd[743]: DHCPV6 SOLICIT IA_NA from 000100012351dd8684c7ea896982 on br-lan: no addresses available
Thu May  2 17:21:50 2019 daemon.warn odhcpd[743]: DHCPV6 SOLICIT IA_NA from 00020000ab11ccfcb74b608065c3 on br-lan: no addresses available
Thu May  2 17:22:48 2019 daemon.warn odhcpd[743]: DHCPV6 SOLICIT IA_NA from 000100012351dd8684c7ea896982 on br-lan: no addresses available
Thu May  2 17:24:00 2019 daemon.warn odhcpd[743]: DHCPV6 SOLICIT IA_NA from 00020000ab11ccfcb74b608065c3 on br-lan: no addresses available
4

There is an 'option disabled 1' line in /etc/config/network shutting down the 2.4 radio. That may not be the only issue but it sure isn't helping.

This likely means that the 'path' setting in the wifi-device stanza for radio0 is missing or wrong.

You could delete or move /etc/config/wireless to a backup and let the firstboot script generate a new one. Then try to enable the radios with two simple APs.

This device does not alternate kernel partitions. The original firmware existed as two complete copies. OpenWrt takes over the first copy and leaves the second one alone in an unused partition that is the top half of the flash (except the last 64k is the vital ART). This should not affect upgrading.

5

Thank you again,
I moved /etc/config/wireless and startet firstboot (this would have deleted any config anyway, wouldn't it?)
No wireless at all was available - factory reset didn't have any effect.
IMHO this cannot work anyway, because of the wrong kernel (should be 4.9.152). Some research offered me this

Just updated my Ubiquiti UniFi-AC-PRO to 18.06.2 successfully, but it shows kernel 4.9.120 instead of 4.9.152 as it should according to the release notes. How's this possible?

so it seems not to be only my problem

Syslog:

Wed Jan 30 12:21:05 2019 kern.notice kernel: [    0.000000] Linux version 4.9.120 (buildbot@builds-03.infra.lede-project.org) (gcc version 7.3.0 (OpenWrt GCC 7.3.0 r7102-3f3a2c9) ) #0 Thu Aug 16 07:51:15 2018
Wed Jan 30 12:21:05 2019 kern.debug kernel: [    0.000000] MyLoader: sysp=aaaaaaaa, boardp=aaaaaaaa, parts=aaaaaaaa
Wed Jan 30 12:21:05 2019 kern.info kernel: [    0.000000] bootconsole [early0] enabled
Wed Jan 30 12:21:05 2019 kern.info kernel: [    0.000000] CPU0 revision is: 00019750 (MIPS 74Kc)
Wed Jan 30 12:21:05 2019 kern.info kernel: [    0.000000] SoC: Qualcomm Atheros QCA956X ver 1 rev 0
Wed Jan 30 12:21:05 2019 kern.info kernel: [    0.000000] Determined physical RAM map:
Wed Jan 30 12:21:05 2019 kern.info kernel: [    0.000000]  memory: 08000000 @ 00000000 (usable)
Wed Jan 30 12:21:05 2019 kern.info kernel: [    0.000000] Initrd not found or empty - disabling initrd
Wed Jan 30 12:21:05 2019 kern.warn kernel: [    0.000000] Primary instruction cache 64kB, VIPT, 4-way, linesize 32 bytes.
Wed Jan 30 12:21:05 2019 kern.warn kernel: [    0.000000] Primary data cache 32kB, 4-way, VIPT, cache aliases, linesize 32 bytes
Wed Jan 30 12:21:05 2019 kern.info kernel: [    0.000000] Zone ranges:
Wed Jan 30 12:21:05 2019 kern.info kernel: [    0.000000]   Normal   [mem 0x0000000000000000-0x0000000007ffffff]
Wed Jan 30 12:21:05 2019 kern.info kernel: [    0.000000] Movable zone start for each node
Wed Jan 30 12:21:05 2019 kern.info kernel: [    0.000000] Early memory node ranges
Wed Jan 30 12:21:05 2019 kern.info kernel: [    0.000000]   node   0: [mem 0x0000000000000000-0x0000000007ffffff]
Wed Jan 30 12:21:05 2019 kern.info kernel: [    0.000000] Initmem setup node 0 [mem 0x0000000000000000-0x0000000007ffffff]
Wed Jan 30 12:21:05 2019 kern.debug kernel: [    0.000000] On node 0 totalpages: 32768
Wed Jan 30 12:21:05 2019 kern.debug kernel: [    0.000000] free_area_init_node: node 0, pgdat 80442044, node_mem_map 81000020
Wed Jan 30 12:21:05 2019 kern.debug kernel: [    0.000000]   Normal zone: 256 pages used for memmap
Wed Jan 30 12:21:05 2019 kern.debug kernel: [    0.000000]   Normal zone: 0 pages reserved
Wed Jan 30 12:21:05 2019 kern.debug kernel: [    0.000000]   Normal zone: 32768 pages, LIFO batch:7
Wed Jan 30 12:21:05 2019 kern.debug kernel: [    0.000000] pcpu-alloc: s0 r0 d32768 u32768 alloc=1*32768
Wed Jan 30 12:21:05 2019 kern.debug kernel: [    0.000000] pcpu-alloc: [0] 0
Wed Jan 30 12:21:05 2019 kern.info kernel: [    0.000000] Built 1 zonelists in Zone order, mobility grouping on.  Total pages: 32512
Wed Jan 30 12:21:05 2019 kern.notice kernel: [    0.000000] Kernel command line:  board=UBNT-UF-AC-LITE mtdparts=spi0.0:384k(u-boot)ro,64k(u-boot-env)ro,7744k(firmware),7744k(ubnt-airos)ro,128k(bs),256k(cfg)ro,64k(EEPROM)ro console=ttyS0,115200 rootfstype=squashfs noinitrd
Wed Jan 30 12:21:05 2019 kern.info kernel: [    0.000000] PID hash table entries: 512 (order: -1, 2048 bytes)
Wed Jan 30 12:21:05 2019 kern.info kernel: [    0.000000] Dentry cache hash table entries: 16384 (order: 4, 65536 bytes)
Wed Jan 30 12:21:05 2019 kern.info kernel: [    0.000000] Inode-cache hash table entries: 8192 (order: 3, 32768 bytes)
Wed Jan 30 12:21:05 2019 kern.info kernel: [    0.000000] Writing ErrCtl register=00000000
Wed Jan 30 12:21:05 2019 kern.info kernel: [    0.000000] Readback ErrCtl register=00000000
Wed Jan 30 12:21:05 2019 kern.info kernel: [    0.000000] Memory: 124996K/131072K available (3363K kernel code, 172K rwdata, 444K rodata, 300K init, 219K bss, 6076K reserved, 0K cma-reserved)
Wed Jan 30 12:21:05 2019 kern.info kernel: [    0.000000] SLUB: HWalign=32, Order=0-3, MinObjects=0, CPUs=1, Nodes=1
Wed Jan 30 12:21:05 2019 kern.info kernel: [    0.000000] NR_IRQS:51
Wed Jan 30 12:21:05 2019 kern.info kernel: [    0.000000] Clocks: CPU:775.000MHz, DDR:650.000MHz, AHB:258.333MHz, Ref:25.000MHz
Wed Jan 30 12:21:05 2019 kern.info kernel: [    0.000000] clocksource: MIPS: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 4932285024 ns
Wed Jan 30 12:21:05 2019 kern.info kernel: [    0.000007] sched_clock: 32 bits at 387MHz, resolution 2ns, wraps every 5541893118ns
Wed Jan 30 12:21:05 2019 kern.info kernel: [    0.008222] Calibrating delay loop... 385.84 BogoMIPS (lpj=1929216)
Wed Jan 30 12:21:05 2019 kern.info kernel: [    0.071034] pid_max: default: 32768 minimum: 301
Wed Jan 30 12:21:05 2019 kern.info kernel: [    0.075987] Mount-cache hash table entries: 1024 (order: 0, 4096 bytes)
Wed Jan 30 12:21:05 2019 kern.info kernel: [    0.082967] Mountpoint-cache hash table entries: 1024 (order: 0, 4096 bytes)
Wed Jan 30 12:21:05 2019 kern.info kernel: [    0.092719] clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns
Wed Jan 30 12:21:05 2019 kern.info kernel: [    0.103125] futex hash table entries: 256 (order: -1, 3072 bytes)
Wed Jan 30 12:21:05 2019 kern.info kernel: [    0.110595] NET: Registered protocol family 16
Wed Jan 30 12:21:05 2019 kern.info kernel: [    0.116614] MIPS: machine is Ubiquiti UniFi-AC-LITE/MESH
Wed Jan 30 12:21:05 2019 kern.warn kernel: [    0.359960] registering PCI controller with io_map_base unset
Wed Jan 30 12:21:05 2019 kern.warn kernel: [    0.366193] Can't analyze schedule() prologue at 803a5594
Wed Jan 30 12:21:05 2019 kern.info kernel: [    0.381492] PCI host bridge to bus 0000:00
Wed Jan 30 12:21:05 2019 kern.info kernel: [    0.385819] pci_bus 0000:00: root bus resource [mem 0x12000000-0x13ffffff]
Wed Jan 30 12:21:05 2019 kern.info kernel: [    0.393100] pci_bus 0000:00: root bus resource [io  0x0001]
Wed Jan 30 12:21:05 2019 kern.info kernel: [    0.398965] pci_bus 0000:00: root bus resource [??? 0x00000000 flags 0x0]
Wed Jan 30 12:21:05 2019 kern.info kernel: [    0.406122] pci_bus 0000:00: No busn resource found for root bus, will use [bus 00-ff]
Wed Jan 30 12:21:05 2019 kern.debug kernel: [    0.414489] pci 0000:00:00.0: [168c:003c] type 00 class 0x028000
Wed Jan 30 12:21:05 2019 kern.err kernel: [    0.414499] pci 0000:00:00.0: invalid calibration data
Wed Jan 30 12:21:05 2019 kern.debug kernel: [    0.419942] pci 0000:00:00.0: reg 0x10: [mem 0x00000000-0x001fffff 64bit]
Wed Jan 30 12:21:05 2019 kern.debug kernel: [    0.419992] pci 0000:00:00.0: reg 0x30: [mem 0x00000000-0x0000ffff pref]
Wed Jan 30 12:21:05 2019 kern.debug kernel: [    0.420060] pci 0000:00:00.0: supports D1
Wed Jan 30 12:21:05 2019 kern.debug kernel: [    0.420067] pci 0000:00:00.0: PME# supported from D0 D1 D3hot
Wed Jan 30 12:21:05 2019 kern.debug kernel: [    0.420236] pci_bus 0000:00: busn_res: [bus 00-ff] end is updated to 00
Wed Jan 30 12:21:05 2019 kern.info kernel: [    0.420258] pci 0000:00:00.0: BAR 0: assigned [mem 0x12000000-0x121fffff 64bit]
Wed Jan 30 12:21:05 2019 kern.info kernel: [    0.427978] pci 0000:00:00.0: BAR 6: assigned [mem 0x12200000-0x1220ffff pref]
Wed Jan 30 12:21:05 2019 kern.info kernel: [    0.435617] pci 0000:00:00.0: using irq 40 for pin 1
Wed Jan 30 12:21:05 2019 kern.info kernel: [    0.443658] clocksource: Switched to clocksource MIPS
Wed Jan 30 12:21:05 2019 kern.info kernel: [    0.449916] NET: Registered protocol family 2
Wed Jan 30 12:21:05 2019 kern.info kernel: [    0.455321] TCP established hash table entries: 1024 (order: 0, 4096 bytes)
Wed Jan 30 12:21:05 2019 kern.info kernel: [    0.462673] TCP bind hash table entries: 1024 (order: 0, 4096 bytes)
Wed Jan 30 12:21:05 2019 kern.info kernel: [    0.469415] TCP: Hash tables configured (established 1024 bind 1024)
Wed Jan 30 12:21:05 2019 kern.info kernel: [    0.476206] UDP hash table entries: 256 (order: 0, 4096 bytes)
Wed Jan 30 12:21:05 2019 kern.info kernel: [    0.482368] UDP-Lite hash table entries: 256 (order: 0, 4096 bytes)
Wed Jan 30 12:21:05 2019 kern.info kernel: [    0.489221] NET: Registered protocol family 1
Wed Jan 30 12:21:05 2019 kern.debug kernel: [    0.493882] PCI: CLS 0 bytes, default 32
Wed Jan 30 12:21:05 2019 kern.warn kernel: [    0.496298] Crashlog allocated RAM at address 0x3f00000
Wed Jan 30 12:21:05 2019 kern.info kernel: [    0.502735] workingset: timestamp_bits=30 max_order=15 bucket_order=0
Wed Jan 30 12:21:05 2019 kern.info kernel: [    0.515457] squashfs: version 4.0 (2009/01/31) Phillip Lougher
Wed Jan 30 12:21:05 2019 kern.info kernel: [    0.521598] jffs2: version 2.2 (NAND) (SUMMARY) (LZMA) (RTIME) (CMODE_PRIORITY) (c) 2001-2006 Red Hat, Inc.
Wed Jan 30 12:21:05 2019 kern.info kernel: [    0.540058] io scheduler noop registered
Wed Jan 30 12:21:05 2019 kern.info kernel: [    0.544227] io scheduler deadline registered (default)
Wed Jan 30 12:21:05 2019 kern.info kernel: [    0.550000] Serial: 8250/16550 driver, 16 ports, IRQ sharing enabled
Wed Jan 30 12:21:05 2019 kern.info kernel: [    0.558916] console [ttyS0] disabled
Wed Jan 30 12:21:05 2019 kern.info kernel: [    0.582756] serial8250.0: ttyS0 at MMIO 0x18020000 (irq = 11, base_baud = 1562500) is a 16550A
Wed Jan 30 12:21:05 2019 kern.info kernel: [    0.591853] console [ttyS0] enabled
Wed Jan 30 12:21:05 2019 kern.info kernel: [    0.599403] bootconsole [early0] disabled
Wed Jan 30 12:21:05 2019 kern.info kernel: [    0.613203] m25p80 spi0.0: mx25l12805d (16384 Kbytes)
Wed Jan 30 12:21:05 2019 kern.notice kernel: [    0.618506] 7 cmdlinepart partitions found on MTD device spi0.0
Wed Jan 30 12:21:05 2019 kern.notice kernel: [    0.624628] Creating 7 MTD partitions on "spi0.0":
Wed Jan 30 12:21:05 2019 kern.notice kernel: [    0.629579] 0x000000000000-0x000000060000 : "u-boot"
Wed Jan 30 12:21:05 2019 kern.notice kernel: [    0.636698] 0x000000060000-0x000000070000 : "u-boot-env"
Wed Jan 30 12:21:05 2019 kern.notice kernel: [    0.643916] 0x000000070000-0x000000800000 : "firmware"
Wed Jan 30 12:21:05 2019 kern.notice kernel: [    0.663355] 2 uimage-fw partitions found on MTD device firmware
Wed Jan 30 12:21:05 2019 kern.notice kernel: [    0.669515] 0x000000070000-0x0000001d0000 : "kernel"
Wed Jan 30 12:21:05 2019 kern.notice kernel: [    0.675813] 0x0000001d0000-0x000000800000 : "rootfs"
Wed Jan 30 12:21:05 2019 kern.notice kernel: [    0.682361] mtd: device 4 (rootfs) set to be root filesystem
Wed Jan 30 12:21:05 2019 kern.notice kernel: [    0.688286] 1 squashfs-split partitions found on MTD device rootfs
Wed Jan 30 12:21:05 2019 kern.notice kernel: [    0.694690] 0x000000450000-0x000000800000 : "rootfs_data"
Wed Jan 30 12:21:05 2019 kern.notice kernel: [    0.702032] 0x000000800000-0x000000f90000 : "ubnt-airos"
Wed Jan 30 12:21:05 2019 kern.notice kernel: [    0.709288] 0x000000f90000-0x000000fb0000 : "bs"
Wed Jan 30 12:21:05 2019 kern.notice kernel: [    0.715808] 0x000000fb0000-0x000000ff0000 : "cfg"
Wed Jan 30 12:21:05 2019 kern.notice kernel: [    0.722320] 0x000000ff0000-0x000001000000 : "EEPROM"
Wed Jan 30 12:21:05 2019 kern.info kernel: [    0.730009] libphy: Fixed MDIO Bus: probed
Wed Jan 30 12:21:05 2019 kern.info kernel: [    0.744942] libphy: ag71xx_mdio: probed
Wed Jan 30 12:21:05 2019 kern.info kernel: [    1.475200] ag71xx ag71xx.0: connected to PHY at ag71xx-mdio.0:04 [uid=004dd074, driver=Atheros 8031 ethernet]
Wed Jan 30 12:21:05 2019 kern.info kernel: [    1.486124] eth0: Atheros AG71xx at 0xb9000000, irq 4, mode:SGMII
Wed Jan 30 12:21:05 2019 kern.info kernel: [    1.493745] NET: Registered protocol family 10
Wed Jan 30 12:21:05 2019 kern.info kernel: [    1.501288] NET: Registered protocol family 17
Wed Jan 30 12:21:05 2019 kern.info kernel: [    1.505982] bridge: filtering via arp/ip/ip6tables is no longer available by default. Update your scripts to load br_netfilter if you need this.
Wed Jan 30 12:21:05 2019 kern.info kernel: [    1.519456] 8021q: 802.1Q VLAN Support v1.8
Wed Jan 30 12:21:05 2019 kern.info kernel: [    1.525363] hctosys: unable to open rtc device (rtc0)
Wed Jan 30 12:21:05 2019 kern.info kernel: [    1.535648] VFS: Mounted root (squashfs filesystem) readonly on device 31:4.
Wed Jan 30 12:21:05 2019 kern.info kernel: [    1.544584] Freeing unused kernel memory: 300K
Wed Jan 30 12:21:05 2019 kern.warn kernel: [    1.549171] This architecture does not have kernel memory protection.
Wed Jan 30 12:21:05 2019 user.info kernel: [    2.147143] init: Console is alive
Wed Jan 30 12:21:05 2019 user.info kernel: [    2.150841] init: - watchdog -
Wed Jan 30 12:21:05 2019 user.info kernel: [    2.164730] init: - preinit -
Wed Jan 30 12:21:05 2019 kern.notice kernel: [    2.573671] random: fast init done
Wed Jan 30 12:21:05 2019 kern.info kernel: [    3.159396] IPv6: ADDRCONF(NETDEV_UP): eth0: link is not ready
Wed Jan 30 12:21:05 2019 kern.notice kernel: [    3.183798] random: procd: uninitialized urandom read (4 bytes read)
Wed Jan 30 12:21:05 2019 kern.info kernel: [    6.326025] eth0: link up (1000Mbps/Full duplex)
Wed Jan 30 12:21:05 2019 kern.info kernel: [    6.330831] IPv6: ADDRCONF(NETDEV_CHANGE): eth0: link becomes ready
Wed Jan 30 12:21:05 2019 user.notice kernel: [    6.398833] mount_root: jffs2 not ready yet, using temporary tmpfs overlay
Wed Jan 30 12:21:05 2019 user.warn kernel: [    6.411891] urandom-seed: Seed file not found (/etc/urandom.seed)
Wed Jan 30 12:21:05 2019 kern.info kernel: [    6.505360] eth0: link down
Wed Jan 30 12:21:05 2019 user.info kernel: [    6.518311] procd: - early -
Wed Jan 30 12:21:05 2019 user.info kernel: [    6.521381] procd: - watchdog -
Wed Jan 30 12:21:05 2019 user.info kernel: [    7.130957] procd: - watchdog -
Wed Jan 30 12:21:05 2019 user.info kernel: [    7.134464] procd: - ubus -
Wed Jan 30 12:21:05 2019 kern.notice kernel: [    7.234360] random: ubusd: uninitialized urandom read (4 bytes read)
Wed Jan 30 12:21:05 2019 kern.notice kernel: [    7.262008] random: ubusd: uninitialized urandom read (4 bytes read)
Wed Jan 30 12:21:05 2019 kern.notice kernel: [    7.269026] random: ubusd: uninitialized urandom read (4 bytes read)
Wed Jan 30 12:21:05 2019 user.info kernel: [    7.276449] procd: - init -
Wed Jan 30 12:21:05 2019 kern.warn kernel: [    8.796754] urandom_read: 5 callbacks suppressed
Wed Jan 30 12:21:05 2019 kern.notice kernel: [    8.796760] random: jshn: uninitialized urandom read (4 bytes read)
Wed Jan 30 12:21:06 2019 user.notice dnsmasq: DNS rebinding protection is active, will discard upstream RFC1918 responses!
Wed Jan 30 12:21:06 2019 user.notice dnsmasq: Allowing 127.0.0.0/8 responses
Wed Jan 30 12:21:06 2019 daemon.info dnsmasq[759]: started, version 2.80 cachesize 150
Wed Jan 30 12:21:06 2019 daemon.info dnsmasq[759]: DNS service limited to local subnets
Wed Jan 30 12:21:06 2019 daemon.info dnsmasq[759]: compile time options: IPv6 GNU-getopt no-DBus no-i18n no-IDN DHCP no-DHCPv6 no-Lua TFTP no-conntrack no-ipset no-auth no-DNSSEC no-ID loop-detect inotify dumpfile
Wed Jan 30 12:21:06 2019 daemon.info dnsmasq[759]: using local addresses only for domain test
Wed Jan 30 12:21:06 2019 daemon.info dnsmasq[759]: using local addresses only for domain onion
Wed Jan 30 12:21:06 2019 daemon.info dnsmasq[759]: using local addresses only for domain localhost
Wed Jan 30 12:21:06 2019 daemon.info dnsmasq[759]: using local addresses only for domain local
Wed Jan 30 12:21:06 2019 daemon.info dnsmasq[759]: using local addresses only for domain invalid
Wed Jan 30 12:21:06 2019 daemon.info dnsmasq[759]: using local addresses only for domain bind
Wed Jan 30 12:21:06 2019 daemon.info dnsmasq[759]: using local addresses only for domain lan
Wed Jan 30 12:21:06 2019 daemon.warn dnsmasq[759]: no servers found in /tmp/resolv.conf.auto, will retry
Wed Jan 30 12:21:06 2019 daemon.info dnsmasq[759]: read /etc/hosts - 4 addresses
Wed Jan 30 12:21:06 2019 daemon.info dnsmasq[759]: read /tmp/hosts/dhcp.cfg01411c - 0 addresses
Wed Jan 30 12:21:08 2019 user.notice : Added device handler type: tunnel
Wed Jan 30 12:21:08 2019 user.notice : Added device handler type: Network device
Wed Jan 30 12:21:08 2019 user.notice : Added device handler type: bridge
Wed Jan 30 12:21:08 2019 user.notice : Added device handler type: veth
Wed Jan 30 12:21:08 2019 user.notice : Added device handler type: macvlan
Wed Jan 30 12:21:08 2019 user.notice : Added device handler type: 8021ad
Wed Jan 30 12:21:08 2019 user.notice : Added device handler type: 8021q
Wed Jan 30 12:21:11 2019 user.notice ucitrack: Setting up /etc/config/network reload dependency on /etc/config/dhcp
Wed Jan 30 12:21:11 2019 user.notice ucitrack: Setting up /etc/config/network reload dependency on /etc/config/radvd
Wed Jan 30 12:21:11 2019 user.notice ucitrack: Setting up /etc/config/wireless reload dependency on /etc/config/network
Wed Jan 30 12:21:11 2019 user.notice ucitrack: Setting up /etc/config/firewall reload dependency on /etc/config/luci-splash
Wed Jan 30 12:21:11 2019 user.notice ucitrack: Setting up /etc/config/firewall reload dependency on /etc/config/qos
Wed Jan 30 12:21:11 2019 user.notice ucitrack: Setting up /etc/config/firewall reload dependency on /etc/config/miniupnpd
Wed Jan 30 12:21:11 2019 user.notice ucitrack: Setting up /etc/config/dhcp reload dependency on /etc/config/odhcpd
Wed Jan 30 12:21:12 2019 user.notice ucitrack: Setting up non-init /etc/config/fstab reload handler: /sbin/block mount
Wed Jan 30 12:21:12 2019 user.notice ucitrack: Setting up /etc/config/system reload trigger for non-procd /etc/init.d/led
Wed Jan 30 12:21:12 2019 user.notice ucitrack: Setting up /etc/config/system reload dependency on /etc/config/luci_statistics
Wed Jan 30 12:21:12 2019 user.notice ucitrack: Setting up /etc/config/system reload dependency on /etc/config/dhcp
Wed Jan 30 12:21:13 2019 kern.warn kernel: [   19.169514] jffs2_scan_eraseblock(): End of filesystem marker found at 0x0
Wed Jan 30 12:21:13 2019 kern.warn kernel: [   19.213721] jffs2_build_filesystem(): unlocking the mtd device...
Wed Jan 30 12:21:13 2019 kern.warn kernel: [   19.219924] done.
Wed Jan 30 12:21:14 2019 kern.warn kernel: [   19.221912] jffs2_build_filesystem(): erasing all blocks after the end marker...
Wed Jan 30 12:21:14 2019 kern.info kernel: [   19.820124] br-lan: port 1(eth0) entered blocking state
Wed Jan 30 12:21:14 2019 kern.info kernel: [   19.825579] br-lan: port 1(eth0) entered disabled state
Wed Jan 30 12:21:14 2019 kern.info kernel: [   19.831264] device eth0 entered promiscuous mode
Wed Jan 30 12:21:14 2019 kern.info kernel: [   19.880420] IPv6: ADDRCONF(NETDEV_UP): br-lan: link is not ready
Wed Jan 30 12:21:14 2019 daemon.notice netifd: Interface 'lan' is enabled
Wed Jan 30 12:21:14 2019 daemon.notice netifd: Interface 'lan' is setting up now
Wed Jan 30 12:21:14 2019 daemon.notice netifd: Interface 'lan' is now up
Wed Jan 30 12:21:14 2019 daemon.notice netifd: Interface 'loopback' is enabled
Wed Jan 30 12:21:14 2019 daemon.notice netifd: Interface 'loopback' is setting up now
Wed Jan 30 12:21:14 2019 daemon.notice netifd: Interface 'loopback' is now up
Wed Jan 30 12:21:14 2019 daemon.notice netifd: Network device 'lo' link is up
Wed Jan 30 12:21:14 2019 daemon.notice netifd: Interface 'loopback' has link connectivity
Wed Jan 30 12:21:15 2019 user.notice firewall: Reloading firewall due to ifup of lan (br-lan)
Wed Jan 30 12:21:17 2019 kern.info kernel: [   22.926717] eth0: link up (1000Mbps/Full duplex)
Wed Jan 30 12:21:17 2019 kern.info kernel: [   22.931611] br-lan: port 1(eth0) entered blocking state
Wed Jan 30 12:21:17 2019 kern.info kernel: [   22.937054] br-lan: port 1(eth0) entered forwarding state
Wed Jan 30 12:21:17 2019 daemon.notice netifd: Network device 'eth0' link is up
Wed Jan 30 12:21:17 2019 daemon.info dnsmasq[759]: read /etc/hosts - 4 addresses
Wed Jan 30 12:21:17 2019 daemon.info dnsmasq[759]: read /tmp/hosts/dhcp.cfg01411c - 0 addresses
Wed Jan 30 12:21:17 2019 daemon.notice netifd: bridge 'br-lan' link is up
Wed Jan 30 12:21:17 2019 daemon.notice netifd: Interface 'lan' has link connectivity
Wed Jan 30 12:21:17 2019 kern.info kernel: [   23.013701] IPv6: ADDRCONF(NETDEV_CHANGE): br-lan: link becomes ready
Wed Jan 30 12:21:20 2019 daemon.warn odhcpd[853]: DHCPV6 CONFIRM IA_NA from 000416f0238ee74c7d7e0f56a52421b19d5d on br-lan: not on-link
Wed Jan 30 12:21:21 2019 daemon.info dnsmasq[759]: read /etc/hosts - 4 addresses
Wed Jan 30 12:21:21 2019 daemon.info dnsmasq[759]: read /tmp/hosts/dhcp.cfg01411c.1148 - 0 addresses
Wed Jan 30 12:21:21 2019 daemon.info dnsmasq[759]: read /tmp/hosts/odhcpd - 0 addresses
Wed Jan 30 12:21:21 2019 daemon.info dnsmasq[759]: read /tmp/hosts/dhcp.cfg01411c - 0 addresses
Wed Jan 30 12:21:21 2019 daemon.warn odhcpd[853]: DHCPV6 SOLICIT IA_NA from 000416f0238ee74c7d7e0f56a52421b19d5d on br-lan: ok fdc5:54b4:984f::24f/128
Wed Jan 30 12:21:22 2019 daemon.warn odhcpd[853]: DHCPV6 REQUEST IA_NA from 000416f0238ee74c7d7e0f56a52421b19d5d on br-lan: ok fdc5:54b4:984f::24f/128
Wed Jan 30 12:21:22 2019 daemon.info dnsmasq[759]: read /etc/hosts - 4 addresses
Wed Jan 30 12:21:22 2019 daemon.info dnsmasq[759]: read /tmp/hosts/odhcpd - 1 addresses
Wed Jan 30 12:21:22 2019 daemon.info dnsmasq[759]: read /tmp/hosts/dhcp.cfg01411c - 2 addresses
Wed Jan 30 12:21:23 2019 daemon.info dnsmasq[759]: exiting on receipt of SIGTERM
Wed Jan 30 12:21:23 2019 daemon.info dnsmasq[1236]: started, version 2.80 cachesize 150
Wed Jan 30 12:21:23 2019 daemon.info dnsmasq[1236]: DNS service limited to local subnets
Wed Jan 30 12:21:23 2019 daemon.info dnsmasq[1236]: compile time options: IPv6 GNU-getopt no-DBus no-i18n no-IDN DHCP no-DHCPv6 no-Lua TFTP no-conntrack no-ipset no-auth no-DNSSEC no-ID loop-detect inotify dumpfile
Wed Jan 30 12:21:23 2019 daemon.info dnsmasq-dhcp[1236]: DHCP, IP range 192.168.1.100 -- 192.168.1.249, lease time 12h
Wed Jan 30 12:21:23 2019 daemon.info dnsmasq[1236]: using local addresses only for domain test
Wed Jan 30 12:21:23 2019 daemon.info dnsmasq[1236]: using local addresses only for domain onion
Wed Jan 30 12:21:23 2019 daemon.info dnsmasq[1236]: using local addresses only for domain localhost
Wed Jan 30 12:21:23 2019 daemon.info dnsmasq[1236]: using local addresses only for domain local
Wed Jan 30 12:21:23 2019 daemon.info dnsmasq[1236]: using local addresses only for domain invalid
Wed Jan 30 12:21:23 2019 daemon.info dnsmasq[1236]: using local addresses only for domain bind
Wed Jan 30 12:21:23 2019 daemon.info dnsmasq[1236]: using local addresses only for domain lan
Wed Jan 30 12:21:23 2019 daemon.warn dnsmasq[1236]: no servers found in /tmp/resolv.conf.auto, will retry
Wed Jan 30 12:21:23 2019 daemon.info dnsmasq[1236]: read /etc/hosts - 4 addresses
Wed Jan 30 12:21:23 2019 daemon.info dnsmasq[1236]: read /tmp/hosts/odhcpd - 1 addresses
Wed Jan 30 12:21:23 2019 daemon.info dnsmasq[1236]: read /tmp/hosts/dhcp.cfg01411c - 2 addresses
Wed Jan 30 12:21:23 2019 daemon.info dnsmasq-dhcp[1236]: read /etc/ethers - 0 addresses
Wed Jan 30 12:21:23 2019 daemon.info dnsmasq[1236]: read /etc/hosts - 4 addresses
Wed Jan 30 12:21:23 2019 daemon.info dnsmasq[1236]: read /tmp/hosts/odhcpd - 1 addresses
Wed Jan 30 12:21:23 2019 daemon.info dnsmasq[1236]: read /tmp/hosts/dhcp.cfg01411c - 2 addresses
Wed Jan 30 12:21:23 2019 daemon.info dnsmasq-dhcp[1236]: read /etc/ethers - 0 addresses
Wed Jan 30 12:21:28 2019 daemon.err uhttpd[911]: luci: accepted login on / for root from 192.168.1.2
Wed Jan 30 12:21:35 2019 kern.warn kernel: [   40.543726] done.
Wed Jan 30 12:21:35 2019 kern.notice kernel: [   40.545749] jffs2: notice: (1020) jffs2_build_xattr_subsystem: complete building xattr subsystem, 0 of xdatum (0 unchecked, 0 orphan) and 0 of xref (0 dead, 0 orphan) found.
Wed Jan 30 12:21:35 2019 daemon.info mount_root: performing overlay whiteout
Wed Jan 30 12:21:35 2019 daemon.info mount_root: syncronizing overlay
Wed Jan 30 12:21:35 2019 daemon.err mount_root: failed to sync jffs2 overlay
Wed Jan 30 12:21:37 2019 daemon.info procd: - init complete -
Wed Jan 30 12:21:41 2019 authpriv.info dropbear[1349]: Not backgrounding
Wed Jan 30 12:22:03 2019 kern.notice kernel: [   69.326550] random: crng init done
Wed Jan 30 12:22:03 2019 daemon.info urandom_seed[1310]: Seed saved (/etc/urandom.seed)
6

So I guess I have to go this way:

BZ.v3.7.40# cd /tmp
BZ.v3.7.40# wget https://downloads.openwrt.org/snapshots/trunk/ar71xx/generic/openwrt-ar71xx-generic-ubnt-unifiac-lite-squashfs-sysupgrade.bin
BZ.v3.7.40# mtd write /tmp/openwrt-ar71xx-generic-ubnt-unifiac-lite-squashfs-sysupgrade.bin kernel0
Unlocking kernel0 ...
Erasing kernel0 ...
Writing from /tmp/openwrt-ar71xx-generic-ubnt-unifiac-lite-squashfs-sysupgrade.bin to kernel0 ... [e/w]
BZ.v3.7.40# mtd -r write /tmp/openwrt-ar71xx-generic-ubnt-unifiac-lite-squashfs-sysupgrade.bin kernel1
Unlocking kernel1 ...
Erasing kernel1 ...
Writing from /tmp/openwrt-ar71xx-generic-ubnt-unifiac-lite-squashfs-sysupgrade.bin to kernel1 ... [e/w]

writing to kernel0 and kernel1

I'm just wondering if I could brick the device this way. And I don't know how to do it - via failsafe mode?

thanks in advance

7

persists in 18.06.4. Kernel doesn't get updated

8

actually this doesn't work - probably because openwrt is already installed. So how can I manually write the new image on the device?

9

what an easy solution:

BZ.v3.9.19# cat /proc/mtd 
dev:    size   erasesize  name
mtd0: 00060000 00010000 "u-boot"
mtd1: 00010000 00010000 "u-boot-env"
mtd2: 00790000 00010000 "kernel0"
mtd3: 00790000 00010000 "kernel1"
mtd7: 00020000 00010000 "bs"
mtd5: 00040000 00010000 "cfg"
mtd6: 00010000 00010000 "EEPROM"

BZ.v3.9.19# dd if=/dev/zero bs=1 count=1 of=/dev/mtd7
1+0 records in
1+0 records out
1 byte copied, 7.3437e-05 s, 13.6 kB/s
10

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