With
echo "5edfacbf" > /proc/ubnthal/.uf
I could flash an opewnwrt image, but it seems there are still some problems: Console Log:
ar7240> reset
Resetting...
U-Boot unifi-v2.0.4.295-g6dbfde2a (Dec 11 2018 - 15:20:42)
DRAM: 64 MB
Base:0x80000000, Top:0x84000000, Res logbuf:0xa3ff3800, log_magic:0x4a5a5a1a kseg: 0xa0000000
Flash: 8 MB
Net: athr8032_phy_probe: unit=0, AR8032 Detected
eth0: 78:8a:20:e2:30:a1
athr8032_phy_probe: unit=0, AR8032 Detected
eth0
Board: Copyright Ubiquiti Networks Inc. 2014
Hit any key to stop autoboot: 0
Board: Ubiquiti Networks AR9342 board (e582-31.1122.0030)
0. Name = u-boot, offset = 0, start_addr=9f000000, size=393216,start_sector=0, end_sector=5
1. Name = u-boot-env, offset = 60000, start_addr=9f060000, size=65536,start_sector=6, end_sector=6
2. Name = kernel, offset = 70000, start_addr=9f070000, size=7602176,start_sector=7, end_sector=122
3. Name = cfg, offset = 7b0000, start_addr=9f7b0000, size=262144,start_sector=123, end_sector=126
4. Name = EEPROM, offset = 7f0000, start_addr=9f7f0000, size=65536,start_sector=127, end_sector=127
UBNT application initialized
## Booting image at 9f070000 ...
Image Name: MIPS OpenWrt Linux-5.10.146
Created: 2022-07-05 21:49:31 UTC
Image Type: MIPS Linux Kernel Image (lzma compressed)
Data Size: 2196126 Bytes = 2.1 MB
Load Address: 80060000
Entry Point: 80060000
Verifying Checksum at 0x9f070040 ...OK
Uncompressing Kernel Image ... OK
Starting kernel ...
[ 0.000000] Linux version 5.10.146 (miki@gluonbuild) (mips-openwrt-linux-musl-gcc (OpenWrt GCC 11.2.0 r19800+6-a7fb589e8a) 11.2.0, GNU ld (GNU Binutils) 2.37) #0 Tue Jul 5 21:49:31 2022
[ 0.000000] printk: bootconsole [early0] enabled
[ 0.000000] CPU0 revision is: 0001974c (MIPS 74Kc)
[ 0.000000] MIPS: machine is Ubiquiti UniFi AP
[ 0.000000] SoC: Atheros AR9342 rev 2
[ 0.000000] Initrd not found or empty - disabling initrd
[ 0.000000] Primary instruction cache 64kB, VIPT, 4-way, linesize 32 bytes.
[ 0.000000] Primary data cache 32kB, 4-way, VIPT, cache aliases, linesize 32 bytes
[ 0.000000] Zone ranges:
[ 0.000000] Normal [mem 0x0000000000000000-0x0000000003ffffff]
[ 0.000000] Movable zone start for each node
[ 0.000000] Early memory node ranges
[ 0.000000] node 0: [mem 0x0000000000000000-0x0000000003ffffff]
[ 0.000000] Initmem setup node 0 [mem 0x0000000000000000-0x0000000003ffffff]
[ 0.000000] Built 1 zonelists, mobility grouping on. Total pages: 16256
[ 0.000000] Kernel command line: console=ttyS0,115200 rootfstype=squashfs,jffs2
[ 0.000000] Dentry cache hash table entries: 8192 (order: 3, 32768 bytes, linear)
[ 0.000000] Inode-cache hash table entries: 4096 (order: 2, 16384 bytes, linear)
[ 0.000000] Writing ErrCtl register=00000000
[ 0.000000] Readback ErrCtl register=00000000
[ 0.000000] mem auto-init: stack:off, heap alloc:off, heap free:off
[ 0.000000] Memory: 56384K/65536K available (5342K kernel code, 583K rwdata, 1208K rodata, 1180K init, 203K bss, 9152K reserved, 0K cma-reserved)
[ 0.000000] SLUB: HWalign=32, Order=0-3, MinObjects=0, CPUs=1, Nodes=1
[ 0.000000] NR_IRQS: 51
[ 0.000000] CPU clock: 185.032 MHz
[ 0.000000] clocksource: MIPS: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 20658623107 ns
[ 0.000031] sched_clock: 32 bits at 92MHz, resolution 10ns, wraps every 23211935738ns
[ 0.025695] Calibrating delay loop... 92.05 BogoMIPS (lpj=460288)
[ 0.125185] pid_max: default: 32768 minimum: 301
[ 0.140590] Mount-cache hash table entries: 1024 (order: 0, 4096 bytes, linear)
[ 0.164177] Mountpoint-cache hash table entries: 1024 (order: 0, 4096 bytes, linear)
[ 0.194972] dyndbg: Ignore empty _ddebug table in a CONFIG_DYNAMIC_DEBUG_CORE build
[ 0.227473] clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns
[ 0.259323] futex hash table entries: 256 (order: -1, 3072 bytes, linear)
[ 0.281407] pinctrl core: initialized pinctrl subsystem
[ 0.312241] NET: Registered protocol family 16
[ 0.505421] clocksource: Switched to clocksource MIPS
[ 0.526038] NET: Registered protocol family 2
[ 0.541051] IP idents hash table entries: 2048 (order: 2, 16384 bytes, linear)
[ 0.567272] tcp_listen_portaddr_hash hash table entries: 512 (order: 0, 4096 bytes, linear)
[ 0.594516] TCP established hash table entries: 1024 (order: 0, 4096 bytes, linear)
[ 0.619264] TCP bind hash table entries: 1024 (order: 0, 4096 bytes, linear)
[ 0.642021] TCP: Hash tables configured (established 1024 bind 1024)
[ 0.662982] UDP hash table entries: 256 (order: 0, 4096 bytes, linear)
[ 0.684275] UDP-Lite hash table entries: 256 (order: 0, 4096 bytes, linear)
[ 0.707492] NET: Registered protocol family 1
[ 0.721767] PCI: CLS 0 bytes, default 32
[ 0.756922] workingset: timestamp_bits=30 max_order=14 bucket_order=0
[ 0.789946] squashfs: version 4.0 (2009/01/31) Phillip Lougher
[ 0.808875] jffs2: version 2.2 (NAND) (SUMMARY) (LZMA) (RTIME) (CMODE_PRIORITY) (c) 2001-2006 Red Hat, Inc.
[ 0.844055] Block layer SCSI generic (bsg) driver version 0.4 loaded (major 252)
[ 0.870938] pinctrl-single 18040028.pinmux: 64 pins, size 8
[ 0.892229] Serial: 8250/16550 driver, 16 ports, IRQ sharing enabled
[ 0.920995] printk: console [ttyS0] disabled
[ 0.935217] 18020000.uart: ttyS0 at MMIO 0x18020000 (irq = 9, base_baud = 140000000) is a 16550A