RB450G No jffs2 Overlay Created?

Hi, I attempted to install a sysupgrade image I had built to the Mikrotik RB450G, appeared to be fine but after boot realized it was using RAM as the overlay not jffs2. Thinking it may be something I had done in the configuration I downloaded the pre-built 19.7.03 image only to find it behaved the same way.

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BusyBox v1.30.1 () built-in shell (ash)

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          |__| W I R E L E S S   F R E E D O M
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 OpenWrt 19.07.3, r11063-85e04e9f46
 -----------------------------------------------------
=== WARNING! =====================================
There is no root password defined on this device!
Use the "passwd" command to set up a new password
in order to prevent unauthorized SSH logins.
--------------------------------------------------
root@OpenWrt:/#
root@OpenWrt:/# df -hT
Filesystem           Type            Size      Used Available Use% Mounted on
/dev/root            squashfs        2.8M      2.8M         0 100% /rom
tmpfs                tmpfs         124.2M    236.0K    124.0M   0% /tmp
/dev/ubi0_3          ubifs         438.0M    304.0K    433.0M   0% /overlay
overlayfs:/overlay   overlay       438.0M    304.0K    433.0M   0% /
tmpfs                tmpfs         512.0K         0    512.0K   0% /dev

root@OpenWrt:/# cat /proc/mtd
dev:    size   erasesize  name
mtd0: 0000b000 00001000 "routerboot"
mtd1: 00001000 00001000 "hard_config"
mtd2: 00002000 00001000 "bios"
mtd3: 00001000 00001000 "soft_config"
mtd4: 00040000 00020000 "booter"
mtd5: 003c0000 00020000 "kernel"
mtd6: 1fc00000 00020000 "ubi"

Full log;

root@OpenWrt:/# logread
Sat May 16 18:32:49 2020 kern.notice kernel: [    0.000000] Linux version 4.14.180 (builder@buildhost) (gcc version 7.5.0 (OpenWrt GCC 7.5.0 r11063-85e04e9f46)) #0 Sat May 16 18:32:20 2020
Sat May 16 18:32:49 2020 kern.info kernel: [    0.000000] bootconsole [early0] enabled
Sat May 16 18:32:49 2020 kern.info kernel: [    0.000000] CPU0 revision is: 00019374 (MIPS 24Kc)
Sat May 16 18:32:49 2020 kern.info kernel: [    0.000000] SoC: Atheros AR7161 rev 2
Sat May 16 18:32:49 2020 kern.info kernel: [    0.000000] Determined physical RAM map:
Sat May 16 18:32:49 2020 kern.info kernel: [    0.000000]  memory: 10000000 @ 00000000 (usable)
Sat May 16 18:32:49 2020 kern.info kernel: [    0.000000] User-defined physical RAM map:
Sat May 16 18:32:49 2020 kern.info kernel: [    0.000000]  memory: 10000000 @ 00000000 (usable)
Sat May 16 18:32:49 2020 kern.info kernel: [    0.000000] Initrd not found or empty - disabling initrd
Sat May 16 18:32:49 2020 kern.warn kernel: [    0.000000] Primary instruction cache 64kB, VIPT, 4-way, linesize 32 bytes.
Sat May 16 18:32:49 2020 kern.warn kernel: [    0.000000] Primary data cache 32kB, 4-way, VIPT, cache aliases, linesize 32 bytes
Sat May 16 18:32:49 2020 kern.info kernel: [    0.000000] Zone ranges:
Sat May 16 18:32:49 2020 kern.info kernel: [    0.000000]   Normal   [mem 0x0000000000000000-0x000000000fffffff]
Sat May 16 18:32:49 2020 kern.info kernel: [    0.000000] Movable zone start for each node
Sat May 16 18:32:49 2020 kern.info kernel: [    0.000000] Early memory node ranges
Sat May 16 18:32:49 2020 kern.info kernel: [    0.000000]   node   0: [mem 0x0000000000000000-0x000000000fffffff]
Sat May 16 18:32:49 2020 kern.info kernel: [    0.000000] Initmem setup node 0 [mem 0x0000000000000000-0x000000000fffffff]
Sat May 16 18:32:49 2020 kern.debug kernel: [    0.000000] On node 0 totalpages: 65536
Sat May 16 18:32:49 2020 kern.debug kernel: [    0.000000] free_area_init_node: node 0, pgdat 80523ec0, node_mem_map 81000020
Sat May 16 18:32:49 2020 kern.debug kernel: [    0.000000]   Normal zone: 512 pages used for memmap
Sat May 16 18:32:49 2020 kern.debug kernel: [    0.000000]   Normal zone: 0 pages reserved
Sat May 16 18:32:49 2020 kern.debug kernel: [    0.000000]   Normal zone: 65536 pages, LIFO batch:15
Sat May 16 18:32:49 2020 kern.notice kernel: [    0.000000] random: get_random_bytes called from 0x80527740 with crng_init=0
Sat May 16 18:32:49 2020 kern.debug kernel: [    0.000000] pcpu-alloc: s0 r0 d32768 u32768 alloc=1*32768
Sat May 16 18:32:49 2020 kern.debug kernel: [    0.000000] pcpu-alloc: [0] 0
Sat May 16 18:32:49 2020 kern.info kernel: [    0.000000] Built 1 zonelists, mobility grouping on.  Total pages: 65024
Sat May 16 18:32:49 2020 kern.notice kernel: [    0.000000] Kernel command line: parts=1 boot_part_size=4194304 gpio=4031 HZ=340000000 mem=256M kmac=CC:2D:E0:9D:33:1D board=450G board=450G hw_opt=00020000 boot=0 mlc=11 console=ttyS0,115200 rootfstype=squashfs noinitrd
Sat May 16 18:32:49 2020 kern.info kernel: [    0.000000] PID hash table entries: 1024 (order: 0, 4096 bytes)
Sat May 16 18:32:49 2020 kern.info kernel: [    0.000000] Dentry cache hash table entries: 32768 (order: 5, 131072 bytes)
Sat May 16 18:32:49 2020 kern.info kernel: [    0.000000] Inode-cache hash table entries: 16384 (order: 4, 65536 bytes)
Sat May 16 18:32:49 2020 kern.info kernel: [    0.000000] Writing ErrCtl register=00000000
Sat May 16 18:32:49 2020 kern.info kernel: [    0.000000] Readback ErrCtl register=00000000
Sat May 16 18:32:49 2020 kern.info kernel: [    0.000000] Memory: 254116K/262144K available (4187K kernel code, 176K rwdata, 520K rodata, 228K init, 213K bss, 8028K reserved, 0K cma-reserved)
Sat May 16 18:32:49 2020 kern.info kernel: [    0.000000] SLUB: HWalign=32, Order=0-3, MinObjects=0, CPUs=1, Nodes=1
Sat May 16 18:32:49 2020 kern.info kernel: [    0.000000] NR_IRQS: 51
Sat May 16 18:32:49 2020 kern.info kernel: [    0.000000] Clocks: CPU:680.000MHz, DDR:340.000MHz, AHB:170.000MHz, Ref:40.000MHz
Sat May 16 18:32:49 2020 kern.info kernel: [    0.000000] clocksource: MIPS: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 5621354254 ns
Sat May 16 18:32:49 2020 kern.info kernel: [    0.000008] sched_clock: 32 bits at 340MHz, resolution 2ns, wraps every 6316128254ns
Sat May 16 18:32:49 2020 kern.info kernel: [    0.007809] Calibrating delay loop... 452.19 BogoMIPS (lpj=2260992)
Sat May 16 18:32:49 2020 kern.info kernel: [    0.074072] pid_max: default: 32768 minimum: 301
Sat May 16 18:32:49 2020 kern.info kernel: [    0.078893] Mount-cache hash table entries: 1024 (order: 0, 4096 bytes)
Sat May 16 18:32:49 2020 kern.info kernel: [    0.085502] Mountpoint-cache hash table entries: 1024 (order: 0, 4096 bytes)
Sat May 16 18:32:49 2020 kern.info kernel: [    0.094748] clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns
Sat May 16 18:32:49 2020 kern.info kernel: [    0.104620] futex hash table entries: 256 (order: -1, 3072 bytes)
Sat May 16 18:32:49 2020 kern.info kernel: [    0.111817] NET: Registered protocol family 16
Sat May 16 18:32:49 2020 kern.info kernel: [    0.117652] MIPS: machine is MikroTik RouterBOARD 450G
Sat May 16 18:32:49 2020 kern.info kernel: [    0.606986] rb4xx-spi rb4xx-spi: controller is unqueued, this is deprecated
Sat May 16 18:32:49 2020 kern.info kernel: [    0.618174] clocksource: Switched to clocksource MIPS
Sat May 16 18:32:49 2020 kern.info kernel: [    0.624141] NET: Registered protocol family 2
Sat May 16 18:32:49 2020 kern.info kernel: [    0.629381] TCP established hash table entries: 2048 (order: 1, 8192 bytes)
Sat May 16 18:32:49 2020 kern.info kernel: [    0.636370] TCP bind hash table entries: 2048 (order: 1, 8192 bytes)
Sat May 16 18:32:49 2020 kern.info kernel: [    0.642795] TCP: Hash tables configured (established 2048 bind 2048)
Sat May 16 18:32:49 2020 kern.info kernel: [    0.649304] UDP hash table entries: 256 (order: 0, 4096 bytes)
Sat May 16 18:32:49 2020 kern.info kernel: [    0.655148] UDP-Lite hash table entries: 256 (order: 0, 4096 bytes)
Sat May 16 18:32:49 2020 kern.info kernel: [    0.661668] NET: Registered protocol family 1
Sat May 16 18:32:49 2020 kern.debug kernel: [    0.666041] PCI: CLS 0 bytes, default 32
Sat May 16 18:32:49 2020 kern.warn kernel: [    0.668858] Crashlog allocated RAM at address 0x3f00000
Sat May 16 18:32:49 2020 kern.info kernel: [    0.675303] workingset: timestamp_bits=30 max_order=16 bucket_order=0
Sat May 16 18:32:49 2020 kern.info kernel: [    0.686378] squashfs: version 4.0 (2009/01/31) Phillip Lougher
Sat May 16 18:32:49 2020 kern.info kernel: [    0.692251] jffs2: version 2.2 (NAND) (SUMMARY) (LZMA) (RTIME) (CMODE_PRIORITY) (c) 2001-2006 Red Hat, Inc.
Sat May 16 18:32:49 2020 kern.info kernel: [    0.711464] io scheduler noop registered
Sat May 16 18:32:49 2020 kern.info kernel: [    0.715390] io scheduler deadline registered (default)
Sat May 16 18:32:49 2020 kern.info kernel: [    0.720950] Serial: 8250/16550 driver, 16 ports, IRQ sharing enabled
Sat May 16 18:32:49 2020 kern.info kernel: [    0.729135] console [ttyS0] disabled
Sat May 16 18:32:49 2020 kern.info kernel: [    0.752780] serial8250.0: ttyS0 at MMIO 0x18020000 (irq = 11, base_baud = 10625000) is a 16550A
Sat May 16 18:32:49 2020 kern.info kernel: [    0.761488] console [ttyS0] enabled
Sat May 16 18:32:49 2020 kern.info kernel: [    0.768453] bootconsole [early0] disabled
Sat May 16 18:32:49 2020 kern.info kernel: [    0.777484] m25p80 spi0.0: pm25lv512 (64 Kbytes)
Sat May 16 18:32:49 2020 kern.notice kernel: [    0.787527] Creating 4 MTD partitions on "spi0.0":
Sat May 16 18:32:49 2020 kern.notice kernel: [    0.792377] 0x000000000000-0x00000000b000 : "routerboot"
Sat May 16 18:32:49 2020 kern.notice kernel: [    0.799330] 0x00000000b000-0x00000000c000 : "hard_config"
Sat May 16 18:32:49 2020 kern.notice kernel: [    0.806000] 0x00000000d000-0x00000000f000 : "bios"
Sat May 16 18:32:49 2020 kern.notice kernel: [    0.812757] 0x00000000f000-0x000000010000 : "soft_config"
Sat May 16 18:32:49 2020 kern.info kernel: [    0.819640] NAND flash driver for RouterBoard 4xx series version 0.2.0
Sat May 16 18:32:49 2020 kern.info kernel: [    0.828027] nand: device found, Manufacturer ID: 0xc2, Chip ID: 0xdc
Sat May 16 18:32:49 2020 kern.info kernel: [    0.834430] nand: Macronix MX30LF4G18AC
Sat May 16 18:32:49 2020 kern.info kernel: [    0.838273] nand: 512 MiB, SLC, erase size: 128 KiB, page size: 2048, OOB size: 64
Sat May 16 18:32:49 2020 kern.warn kernel: [    0.845847] nand: WARNING: MX30LF4G18AC: the ECC used on your system is too weak compared to the one required by the NAND chip
Sat May 16 18:32:49 2020 kern.info kernel: [    0.857227] Scanning device for bad blocks
Sat May 16 18:32:49 2020 kern.warn kernel: [    1.815120] Bad eraseblock 3104 at 0x000018400000
Sat May 16 18:32:49 2020 kern.notice kernel: [    2.124557] Creating 3 MTD partitions on "MX30LF4G18AC":
Sat May 16 18:32:49 2020 kern.notice kernel: [    2.129928] 0x000000000000-0x000000040000 : "booter"
Sat May 16 18:32:49 2020 kern.notice kernel: [    2.136440] 0x000000040000-0x000000400000 : "kernel"
Sat May 16 18:32:49 2020 kern.notice kernel: [    2.142799] 0x000000400000-0x000020000000 : "ubi"
Sat May 16 18:32:49 2020 kern.info kernel: [    2.156286] libphy: Fixed MDIO Bus: probed
Sat May 16 18:32:49 2020 kern.info kernel: [    2.166682] switch0: Atheros AR8316 rev. 1 switch registered on ag71xx-mdio.0
Sat May 16 18:32:49 2020 kern.info kernel: [    2.174924] libphy: ag71xx_mdio: probed
Sat May 16 18:32:49 2020 kern.info kernel: [    2.519530] ar8316: Using port 4 as PHY
Sat May 16 18:32:49 2020 kern.notice kernel: [    2.578164] random: fast init done
Sat May 16 18:32:49 2020 kern.info kernel: [    3.650299] ag71xx ag71xx.1: connected to PHY at ag71xx-mdio.0:04 [uid=004dd041, driver=Atheros AR8216/AR8236/AR8316]
Sat May 16 18:32:49 2020 kern.info kernel: [    3.661448] eth0: Atheros AG71xx at 0xba000000, irq 5, mode: rgmii
Sat May 16 18:32:49 2020 kern.info kernel: [    3.999529] ar8316: Using port 4 as PHY
Sat May 16 18:32:49 2020 kern.info kernel: [    4.006991] ag71xx ag71xx.0: connected to PHY at ag71xx-mdio.0:00 [uid=004dd041, driver=Atheros AR8216/AR8236/AR8316]
Sat May 16 18:32:49 2020 kern.info kernel: [    4.018154] eth1: Atheros AG71xx at 0xb9000000, irq 4, mode: rgmii
Sat May 16 18:32:49 2020 kern.info kernel: [    4.030915] NET: Registered protocol family 10
Sat May 16 18:32:49 2020 kern.info kernel: [    4.039943] Segment Routing with IPv6
Sat May 16 18:32:49 2020 kern.info kernel: [    4.043686] NET: Registered protocol family 17
Sat May 16 18:32:49 2020 kern.info kernel: [    4.048226] bridge: filtering via arp/ip/ip6tables is no longer available by default. Update your scripts to load br_netfilter if you need this.
Sat May 16 18:32:49 2020 kern.info kernel: [    4.061162] 8021q: 802.1Q VLAN Support v1.8
Sat May 16 18:32:49 2020 kern.notice kernel: [    4.069026] UBI: auto-attach mtd6
Sat May 16 18:32:49 2020 kern.notice kernel: [    4.072368] ubi0: attaching mtd6
Sat May 16 18:32:49 2020 kern.notice kernel: [    7.527154] ubi0: scanning is finished
Sat May 16 18:32:49 2020 kern.notice kernel: [    7.594692] ubi0: attached mtd6 (name "ubi", size 508 MiB)
Sat May 16 18:32:49 2020 kern.notice kernel: [    7.600232] ubi0: PEB size: 131072 bytes (128 KiB), LEB size: 126976 bytes
Sat May 16 18:32:49 2020 kern.notice kernel: [    7.607086] ubi0: min./max. I/O unit sizes: 2048/2048, sub-page size 2048
Sat May 16 18:32:49 2020 kern.notice kernel: [    7.613871] ubi0: VID header offset: 2048 (aligned 2048), data offset: 4096
Sat May 16 18:32:49 2020 kern.notice kernel: [    7.620833] ubi0: good PEBs: 4063, bad PEBs: 1, corrupted PEBs: 0
Sat May 16 18:32:49 2020 kern.notice kernel: [    7.626915] ubi0: user volume: 4, internal volumes: 1, max. volumes count: 128
Sat May 16 18:32:49 2020 kern.notice kernel: [    7.634136] ubi0: max/mean erase counter: 3/1, WL threshold: 4096, image sequence number: 3306822690
Sat May 16 18:32:49 2020 kern.notice kernel: [    7.643258] ubi0: available PEBs: 0, total reserved PEBs: 4063, PEBs reserved for bad PEB handling: 79
Sat May 16 18:32:49 2020 kern.notice kernel: [    7.652678] ubi0: background thread "ubi_bgt0d" started, PID 349
Sat May 16 18:32:49 2020 kern.info kernel: [    7.660375] block ubiblock0_2: created from ubi0:2(rootfs)
Sat May 16 18:32:49 2020 kern.notice kernel: [    7.665866] ubiblock: device ubiblock0_2 (rootfs) set to be root filesystem
Sat May 16 18:32:49 2020 kern.info kernel: [    7.690506] VFS: Mounted root (squashfs filesystem) readonly on device 254:0.
Sat May 16 18:32:49 2020 kern.info kernel: [    7.698639] Freeing unused kernel memory: 228K
Sat May 16 18:32:49 2020 kern.warn kernel: [    7.703074] This architecture does not have kernel memory protection.
Sat May 16 18:32:49 2020 user.info kernel: [    8.739585] init: Console is alive
Sat May 16 18:32:49 2020 user.info kernel: [    8.743230] init: - watchdog -
Sat May 16 18:32:49 2020 user.info kernel: [   10.351035] kmodloader: loading kernel modules from /etc/modules-boot.d/*
Sat May 16 18:32:49 2020 kern.info kernel: [   10.409093] usbcore: registered new interface driver usbfs
Sat May 16 18:32:49 2020 kern.info kernel: [   10.414670] usbcore: registered new interface driver hub
Sat May 16 18:32:49 2020 kern.info kernel: [   10.420114] usbcore: registered new device driver usb
Sat May 16 18:32:49 2020 kern.info kernel: [   10.430025] ehci_hcd: USB 2.0 'Enhanced' Host Controller (EHCI) Driver
Sat May 16 18:32:49 2020 kern.info kernel: [   10.438106] ehci-platform: EHCI generic platform driver
Sat May 16 18:32:49 2020 kern.info kernel: [   10.445682] ohci_hcd: USB 1.1 'Open' Host Controller (OHCI) Driver
Sat May 16 18:32:49 2020 kern.info kernel: [   10.453104] ohci-platform: OHCI generic platform driver
Sat May 16 18:32:49 2020 user.info kernel: [   10.459133] kmodloader: done loading kernel modules from /etc/modules-boot.d/*
Sat May 16 18:32:49 2020 user.info kernel: [   10.476834] init: - preinit -
Sat May 16 18:32:49 2020 kern.info kernel: [   11.310950] IPv6: ADDRCONF(NETDEV_UP): eth1: link is not ready
Sat May 16 18:32:49 2020 kern.notice kernel: [   11.336474] random: procd: uninitialized urandom read (4 bytes read)
Sat May 16 18:32:49 2020 kern.debug kernel: [   12.328563] ar71xx: pll_reg 0xb8050010: 0x110000
Sat May 16 18:32:49 2020 kern.info kernel: [   12.328578] eth1: link up (1000Mbps/Full duplex)
Sat May 16 18:32:49 2020 kern.info kernel: [   12.333242] IPv6: ADDRCONF(NETDEV_CHANGE): eth1: link becomes ready
Sat May 16 18:32:49 2020 kern.notice kernel: [   14.532105] UBIFS (ubi0:3): background thread "ubifs_bgt0_3" started, PID 415
Sat May 16 18:32:49 2020 kern.notice kernel: [   15.302212] UBIFS (ubi0:3): UBIFS: mounted UBI device 0, volume 3, name "rootfs_data"
Sat May 16 18:32:49 2020 kern.notice kernel: [   15.310089] UBIFS (ubi0:3): LEB size: 126976 bytes (124 KiB), min./max. I/O unit sizes: 2048 bytes/2048 bytes
Sat May 16 18:32:49 2020 kern.notice kernel: [   15.319994] UBIFS (ubi0:3): FS size: 497364992 bytes (474 MiB, 3917 LEBs), journal size 24887296 bytes (23 MiB, 196 LEBs)
Sat May 16 18:32:49 2020 kern.notice kernel: [   15.330947] UBIFS (ubi0:3): reserved for root: 4952683 bytes (4836 KiB)
Sat May 16 18:32:49 2020 kern.notice kernel: [   15.337550] UBIFS (ubi0:3): media format: w4/r0 (latest is w5/r0), UUID DF7CDA43-957D-466C-B360-125415D37AF5, small LPT model
Sat May 16 18:32:49 2020 user.info kernel: [   15.350802] mount_root: overlay filesystem has not been fully initialized yet
Sat May 16 18:32:49 2020 user.info kernel: [   15.359897] mount_root: switching to ubifs overlay
Sat May 16 18:32:49 2020 user.warn kernel: [   15.603184] urandom-seed: Seed file not found (/etc/urandom.seed)
Sat May 16 18:32:49 2020 kern.info kernel: [   15.821788] eth1: link down
Sat May 16 18:32:49 2020 user.info kernel: [   15.835744] procd: - early -
Sat May 16 18:32:49 2020 user.info kernel: [   15.839412] procd: - watchdog -
Sat May 16 18:32:49 2020 user.info kernel: [   16.470827] procd: - watchdog -
Sat May 16 18:32:49 2020 user.info kernel: [   16.474297] procd: - ubus -
Sat May 16 18:32:49 2020 kern.notice kernel: [   16.616870] random: ubusd: uninitialized urandom read (4 bytes read)
Sat May 16 18:32:49 2020 kern.notice kernel: [   16.624299] random: ubusd: uninitialized urandom read (4 bytes read)
Sat May 16 18:32:49 2020 kern.notice kernel: [   16.631145] random: ubusd: uninitialized urandom read (4 bytes read)
Sat May 16 18:32:49 2020 user.info kernel: [   16.638525] procd: - init -
Sat May 16 18:32:49 2020 user.info kernel: [   17.335455] kmodloader: loading kernel modules from /etc/modules.d/*
Sat May 16 18:32:49 2020 kern.info kernel: [   17.364425] ip6_tables: (C) 2000-2006 Netfilter Core Team
Sat May 16 18:32:49 2020 kern.info kernel: [   17.387239] Loading modules backported from Linux version v4.19.120-0-gfdc072324f3c
Sat May 16 18:32:49 2020 kern.info kernel: [   17.394950] Backport generated by backports.git v4.19.120-1-0-g60c3a249
Sat May 16 18:32:49 2020 kern.info kernel: [   17.420503] ip_tables: (C) 2000-2006 Netfilter Core Team
Sat May 16 18:32:49 2020 kern.info kernel: [   17.445832] nf_conntrack version 0.5.0 (4096 buckets, 16384 max)
Sat May 16 18:32:49 2020 kern.info kernel: [   17.570144] xt_time: kernel timezone is -0000
Sat May 16 18:32:49 2020 kern.info kernel: [   17.663078] PPP generic driver version 2.4.2
Sat May 16 18:32:49 2020 kern.info kernel: [   17.679438] NET: Registered protocol family 24
Sat May 16 18:32:49 2020 user.info kernel: [   17.748847] kmodloader: done loading kernel modules from /etc/modules.d/*
Sat May 16 18:32:49 2020 user.info kernel: [   17.797083] urngd: v1.0.2 started.
Sat May 16 18:32:49 2020 kern.notice kernel: [   17.975617] random: crng init done
Sat May 16 18:32:49 2020 kern.notice kernel: [   17.979044] random: 6 urandom warning(s) missed due to ratelimiting
Sat May 16 18:32:50 2020 user.notice dnsmasq: DNS rebinding protection is active, will discard upstream RFC1918 responses!
Sat May 16 18:32:50 2020 user.notice dnsmasq: Allowing 127.0.0.0/8 responses
Sat May 16 18:32:51 2020 daemon.info dnsmasq[850]: started, version 2.80 cachesize 150
Sat May 16 18:32:51 2020 daemon.info dnsmasq[850]: DNS service limited to local subnets
Sat May 16 18:32:51 2020 daemon.info dnsmasq[850]: 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
Sat May 16 18:32:51 2020 daemon.info dnsmasq[850]: using local addresses only for domain test
Sat May 16 18:32:51 2020 daemon.info dnsmasq[850]: using local addresses only for domain onion
Sat May 16 18:32:51 2020 daemon.info dnsmasq[850]: using local addresses only for domain localhost
Sat May 16 18:32:51 2020 daemon.info dnsmasq[850]: using local addresses only for domain local
Sat May 16 18:32:51 2020 daemon.info dnsmasq[850]: using local addresses only for domain invalid
Sat May 16 18:32:51 2020 daemon.info dnsmasq[850]: using local addresses only for domain bind
Sat May 16 18:32:51 2020 daemon.info dnsmasq[850]: using local addresses only for domain lan
Sat May 16 18:32:51 2020 daemon.warn dnsmasq[850]: no servers found in /tmp/resolv.conf.auto, will retry
Sat May 16 18:32:51 2020 daemon.info dnsmasq[850]: read /etc/hosts - 4 addresses
Sat May 16 18:32:51 2020 daemon.info dnsmasq[850]: read /tmp/hosts/dhcp.cfg01411c - 0 addresses
Sat May 16 18:32:51 2020 authpriv.info dropbear[883]: Not backgrounding
Sat May 16 18:32:53 2020 user.notice : Added device handler type: 8021ad
Sat May 16 18:32:53 2020 user.notice : Added device handler type: 8021q
Sat May 16 18:32:53 2020 user.notice : Added device handler type: macvlan
Sat May 16 18:32:53 2020 user.notice : Added device handler type: veth
Sat May 16 18:32:53 2020 user.notice : Added device handler type: bridge
Sat May 16 18:32:53 2020 user.notice : Added device handler type: Network device
Sat May 16 18:32:53 2020 user.notice : Added device handler type: tunnel
Sat May 16 18:32:55 2020 user.notice ucitrack: Setting up /etc/config/network reload dependency on /etc/config/dhcp
Sat May 16 18:32:55 2020 user.notice ucitrack: Setting up /etc/config/network reload dependency on /etc/config/radvd
Sat May 16 18:32:55 2020 user.notice ucitrack: Setting up /etc/config/wireless reload dependency on /etc/config/network
Sat May 16 18:32:55 2020 user.notice ucitrack: Setting up /etc/config/firewall reload dependency on /etc/config/luci-splash
Sat May 16 18:32:55 2020 user.notice ucitrack: Setting up /etc/config/firewall reload dependency on /etc/config/qos
Sat May 16 18:32:56 2020 user.notice ucitrack: Setting up /etc/config/firewall reload dependency on /etc/config/miniupnpd
Sat May 16 18:32:56 2020 user.notice ucitrack: Setting up /etc/config/dhcp reload dependency on /etc/config/odhcpd
Sat May 16 18:32:56 2020 user.notice ucitrack: Setting up non-init /etc/config/fstab reload handler: /sbin/block mount
Sat May 16 18:32:56 2020 user.notice ucitrack: Setting up /etc/config/system reload trigger for non-procd /etc/init.d/led
Sat May 16 18:32:56 2020 user.notice ucitrack: Setting up /etc/config/system reload dependency on /etc/config/luci_statistics
Sat May 16 18:32:57 2020 user.notice ucitrack: Setting up /etc/config/system reload dependency on /etc/config/dhcp
Sat May 16 18:32:58 2020 kern.info kernel: [   29.874280] IPv6: ADDRCONF(NETDEV_UP): eth1: link is not ready
Sat May 16 18:32:58 2020 kern.info kernel: [   29.913904] br-lan: port 1(eth1.1) entered blocking state
Sat May 16 18:32:58 2020 kern.info kernel: [   29.919371] br-lan: port 1(eth1.1) entered disabled state
Sat May 16 18:32:58 2020 kern.info kernel: [   29.925073] device eth1.1 entered promiscuous mode
Sat May 16 18:32:58 2020 kern.info kernel: [   29.929925] device eth1 entered promiscuous mode
Sat May 16 18:32:58 2020 daemon.notice netifd: Interface 'lan' is enabled
Sat May 16 18:32:58 2020 daemon.notice netifd: Interface 'lan' is setting up now
Sat May 16 18:32:58 2020 kern.info kernel: [   30.038448] IPv6: ADDRCONF(NETDEV_UP): br-lan: link is not ready
Sat May 16 18:32:58 2020 daemon.notice netifd: Interface 'lan' is now up
Sat May 16 18:32:58 2020 daemon.notice netifd: Interface 'loopback' is enabled
Sat May 16 18:32:58 2020 daemon.notice netifd: Interface 'loopback' is setting up now
Sat May 16 18:32:58 2020 daemon.notice netifd: Interface 'loopback' is now up
Sat May 16 18:32:58 2020 kern.info kernel: [   30.064599] IPv6: ADDRCONF(NETDEV_UP): eth0: link is not ready
Sat May 16 18:32:58 2020 daemon.notice netifd: Interface 'wan' is enabled
Sat May 16 18:32:58 2020 daemon.notice netifd: Interface 'wan6' is enabled
Sat May 16 18:32:58 2020 daemon.notice netifd: Network device 'lo' link is up
Sat May 16 18:32:58 2020 daemon.notice netifd: Interface 'loopback' has link connectivity
Sat May 16 18:32:58 2020 user.notice firewall: Reloading firewall due to ifup of lan (br-lan)
Sat May 16 18:32:59 2020 kern.debug kernel: [   30.889002] ar71xx: pll_reg 0xb8050010: 0x110000
Sat May 16 18:32:59 2020 kern.info kernel: [   30.889020] eth1: link up (1000Mbps/Full duplex)
Sat May 16 18:32:59 2020 kern.info kernel: [   30.894018] IPv6: ADDRCONF(NETDEV_CHANGE): eth1: link becomes ready
Sat May 16 18:32:59 2020 daemon.notice netifd: VLAN 'eth1.1' link is up
Sat May 16 18:32:59 2020 daemon.notice netifd: Network device 'eth1' link is up
Sat May 16 18:32:59 2020 kern.info kernel: [   30.932117] br-lan: port 1(eth1.1) entered blocking state
Sat May 16 18:32:59 2020 kern.info kernel: [   30.937521] br-lan: port 1(eth1.1) entered forwarding state
Sat May 16 18:32:59 2020 daemon.notice netifd: bridge 'br-lan' link is up
Sat May 16 18:32:59 2020 daemon.notice netifd: Interface 'lan' has link connectivity
Sat May 16 18:32:59 2020 kern.info kernel: [   30.978274] IPv6: ADDRCONF(NETDEV_CHANGE): br-lan: link becomes ready
Sat May 16 18:32:59 2020 daemon.info procd: - init complete -
Sat May 16 18:32:59 2020 daemon.info urandom_seed[1272]: Seed saved (/etc/urandom.seed)
Sat May 16 18:33:00 2020 daemon.err odhcpd[975]: Failed to send to ff02::1%lan@br-lan (Address not available)
Sat May 16 18:33:04 2020 daemon.info dnsmasq[850]: exiting on receipt of SIGTERM
Sat May 16 18:33:04 2020 daemon.info dnsmasq[1396]: started, version 2.80 cachesize 150
Sat May 16 18:33:04 2020 daemon.info dnsmasq[1396]: DNS service limited to local subnets
Sat May 16 18:33:04 2020 daemon.info dnsmasq[1396]: 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
Sat May 16 18:33:04 2020 daemon.info dnsmasq-dhcp[1396]: DHCP, IP range 192.168.1.100 -- 192.168.1.249, lease time 12h
Sat May 16 18:33:04 2020 daemon.info dnsmasq[1396]: using local addresses only for domain test
Sat May 16 18:33:04 2020 daemon.info dnsmasq[1396]: using local addresses only for domain onion
Sat May 16 18:33:04 2020 daemon.info dnsmasq[1396]: using local addresses only for domain localhost
Sat May 16 18:33:04 2020 daemon.info dnsmasq[1396]: using local addresses only for domain local
Sat May 16 18:33:04 2020 daemon.info dnsmasq[1396]: using local addresses only for domain invalid
Sat May 16 18:33:04 2020 daemon.info dnsmasq[1396]: using local addresses only for domain bind
Sat May 16 18:33:04 2020 daemon.info dnsmasq[1396]: using local addresses only for domain lan
Sat May 16 18:33:04 2020 daemon.warn dnsmasq[1396]: no servers found in /tmp/resolv.conf.auto, will retry
Sat May 16 18:33:04 2020 daemon.info dnsmasq[1396]: read /etc/hosts - 4 addresses
Sat May 16 18:33:04 2020 daemon.info dnsmasq[1396]: read /tmp/hosts/dhcp.cfg01411c - 1 addresses
Sat May 16 18:33:04 2020 daemon.info dnsmasq-dhcp[1396]: read /etc/ethers - 0 addresses
Sat May 16 18:33:04 2020 daemon.info dnsmasq[1396]: read /etc/hosts - 4 addresses
Sat May 16 18:33:04 2020 daemon.info dnsmasq[1396]: read /tmp/hosts/dhcp.cfg01411c - 1 addresses
Sat May 16 18:33:04 2020 daemon.info dnsmasq-dhcp[1396]: read /etc/ethers - 0 addresses
root@OpenWrt:/#

I had a similar issue with the RB750Gr3 where a start-up script failed to exit (why I still don't know) but in that case it was visible in the process list, which is not the case here.

root@OpenWrt:/# ps -w
  PID USER       VSZ STAT COMMAND
    1 root      1564 S    /sbin/procd
    2 root         0 SW   [kthreadd]
    3 root         0 IW   [kworker/0:0]
    4 root         0 IW<  [kworker/0:0H]
    5 root         0 IW   [kworker/u2:0]
    6 root         0 IW<  [mm_percpu_wq]
    7 root         0 SW   [ksoftirqd/0]
   12 root         0 IW   [kworker/u2:2]
   37 root         0 SW   [oom_reaper]
   85 root         0 IW<  [writeback]
   87 root         0 SW   [kcompactd0]
   88 root         0 IW<  [crypto]
   90 root         0 IW<  [kblockd]
  110 root         0 IW<  [watchdogd]
  123 root         0 IW   [kworker/0:1]
  131 root         0 SW   [kswapd0]
  335 root         0 IW<  [ipv6_addrconf]
  349 root         0 SW   [ubi_bgt0d]
  354 root         0 IW<  [kworker/0:1H]
  415 root         0 SW   [ubifs_bgt0_3]
  488 root      1220 S    /sbin/ubusd
  489 root      1228 S    /bin/ash --login
  506 root      1028 S    /sbin/urngd
  576 root         0 IW<  [cfg80211]
  756 root      1248 S    /sbin/logd -S 64
  787 root      2036 S    /sbin/rpcd -s /var/run/ubus.sock -t 30
  883 root      1080 S    /usr/sbin/dropbear -F -P /var/run/dropbear.1.pid -p 22 -K 300 -T 3
  940 root      1680 S    /sbin/netifd
  975 root      1448 S    /usr/sbin/odhcpd
 1030 root      1340 S    /usr/sbin/uhttpd -f -h /www -r OpenWrt -x /cgi-bin -t 60 -T 30 -k 20 -A 1 -n 3 -N 100 -R -p 0.0.0.0:80 -p
 1241 root      1212 S<   /usr/sbin/ntpd -n -N -S /usr/sbin/ntpd-hotplug -p 0.openwrt.pool.ntp.org -p 1.openwrt.pool.ntp.org -p 2.o
 1396 dnsmasq   1344 S    /usr/sbin/dnsmasq -C /var/etc/dnsmasq.conf.cfg01411c -k -x /var/run/dnsmasq/dnsmasq.cfg01411c.pid
 1439 root      1212 R    ps -w
root@OpenWrt:/#

Does anyone have any suggestions?

It's NAND so you have ubifs instead of jffs2. Everything looks normal here-- /tmp is in RAM and /overlay is in flash. Are files persistent?

I'm an idiot! Yes the files are persistent.

Because I had the RB750 Issue I assumed it was a similar problem, plus with the jffs2 entry in the log I didn't even think of checking.

mk24, Thank you for enlightening me!