RT3200 (E8450) looses settings after reboot (initial install)

[master5597]

I have a RT3200 (E8450) and I originally installed OpenWrt using https://downloads.openwrt.org/releases/22.03.2/targets/mediatek/mt7622/openwrt-22.03.2-mediatek-mt7622-linksys_e8450-ubi-squashfs-sysupgrade.itb and using the linked instructions at https://github.com/dangowrt/owrt-ubi-installer. But I notices when I lost power/rebooted all the settings were gone. I got busy and came back to it and saw that 22.03.3 was available and I tried to install openwrt-22.03.3-mediatek-mt7622-linksys_e8450-squashfs-sysupgrade.itb, but the web UI gave an error. (per https://github.com/dangowrt/owrt-ubi-installer/issues/133 I didn't think I needed the ubi version for updates?) I think something isn't mounted correctly. I've tried using the web interface to flash the ubi versions of 22.03.1 and 22.03.2 seemingly successfully, but in the web UI the Firmware version always says: OpenWrt 22.03-SNAPSHOT r19338-ae64d0624c / LuCI openwrt-22.03 branch git-22.119.37115-66994a5. In reading a bunch of other posts about this issue on other devices, I ran the commands below. Hopefully they will give some insight? I expect i missed something obvious, as I get a lot of interruptions....

root@OpenWrt:~# dmesg | grep -e overlay -e jffs2 -e ubi
[    1.425273] jffs2: version 2.2 (NAND) (SUMMARY) (LZMA) (RTIME) (CMODE_PRIORITY) (c) 2001-2006 Red Hat, Inc.
[    1.681866] 0x000000300000-0x000008000000 : "ubi"
[    2.645910] ubi0: attaching mtd3
[    3.033869] ubi0: scanning is finished
[    3.041938] ubi0: attached mtd3 (name "ubi", size 125 MiB)
[    3.047426] ubi0: PEB size: 131072 bytes (128 KiB), LEB size: 126976 bytes
[    3.054312] ubi0: min./max. I/O unit sizes: 2048/2048, sub-page size 2048
[    3.061097] ubi0: VID header offset: 2048 (aligned 2048), data offset: 4096
[    3.068048] ubi0: good PEBs: 1000, bad PEBs: 0, corrupted PEBs: 0
[    3.074135] ubi0: user volume: 6, internal volumes: 1, max. volumes count: 128
[    3.081352] ubi0: max/mean erase counter: 2/1, WL threshold: 4096, image sequence number: 466119738
[    3.090387] ubi0: available PEBs: 0, total reserved PEBs: 1000, PEBs reserved for bad PEB handling: 20
[    3.099750] ubi0: background thread "ubi_bgt0d" started, PID 851
[    3.106793] FIT: Selected configuration: "config-1" (OpenWrt linksys_e8450-ubi)
[    3.124083] FIT:          flat_dt sub-image 0x004db000..0x004e2578 "fdt-1" (ARM64 OpenWrt linksys_e8450-ubi device tree blob) 
[    3.135489] FIT:       filesystem sub-image 0x004e3000..0x009cafff "rootfs-1" (ARM64 OpenWrt linksys_e8450-ubi rootfs) 
[    3.153575]  ubiblock0_4: p1(rootfs-1)
[    3.153874] block ubiblock0_4: created from ubi0:4(fit)
root@OpenWrt:~# logread -e overlay -e jffs2 -e ubi
Wed May 11 23:35:51 2022 kern.notice kernel: [    1.681866] 0x000000300000-0x000008000000 : "ubi"
Wed May 11 23:35:51 2022 kern.notice kernel: [    2.645910] ubi0: attaching mtd3
Wed May 11 23:35:51 2022 kern.notice kernel: [    3.033869] ubi0: scanning is finished
Wed May 11 23:35:51 2022 kern.notice kernel: [    3.041938] ubi0: attached mtd3 (name "ubi", size 125 MiB)
Wed May 11 23:35:51 2022 kern.notice kernel: [    3.047426] ubi0: PEB size: 131072 bytes (128 KiB), LEB size: 126976 bytes
Wed May 11 23:35:51 2022 kern.notice kernel: [    3.054312] ubi0: min./max. I/O unit sizes: 2048/2048, sub-page size 2048
Wed May 11 23:35:51 2022 kern.notice kernel: [    3.061097] ubi0: VID header offset: 2048 (aligned 2048), data offset: 4096
Wed May 11 23:35:51 2022 kern.notice kernel: [    3.068048] ubi0: good PEBs: 1000, bad PEBs: 0, corrupted PEBs: 0
Wed May 11 23:35:51 2022 kern.notice kernel: [    3.074135] ubi0: user volume: 6, internal volumes: 1, max. volumes count: 128
Wed May 11 23:35:51 2022 kern.notice kernel: [    3.081352] ubi0: max/mean erase counter: 2/1, WL threshold: 4096, image sequence number: 466119738
Wed May 11 23:35:51 2022 kern.notice kernel: [    3.090387] ubi0: available PEBs: 0, total reserved PEBs: 1000, PEBs reserved for bad PEB handling: 20
Wed May 11 23:35:51 2022 kern.notice kernel: [    3.099750] ubi0: background thread "ubi_bgt0d" started, PID 851
Wed May 11 23:35:51 2022 kern.debug kernel: [    3.106793] FIT: Selected configuration: "config-1" (OpenWrt linksys_e8450-ubi)
Wed May 11 23:35:51 2022 kern.debug kernel: [    3.124083] FIT:          flat_dt sub-image 0x004db000..0x004e2578 "fdt-1" (ARM64 OpenWrt linksys_e8450-ubi device tree blob)
Wed May 11 23:35:51 2022 kern.debug kernel: [    3.135489] FIT:       filesystem sub-image 0x004e3000..0x009cafff "rootfs-1" (ARM64 OpenWrt linksys_e8450-ubi rootfs)
Wed May 11 23:35:51 2022 kern.info kernel: [    3.153575]  ubiblock0_4: p1(rootfs-1)
Wed May 11 23:35:51 2022 kern.info kernel: [    3.153874] block ubiblock0_4: created from ubi0:4(fit)
root@OpenWrt:~# uname -a
Linux OpenWrt 5.10.113 #0 SMP Fri May 6 19:55:52 2022 aarch64 GNU/Linux
root@OpenWrt:~# cat /proc/mtd
dev:    size   erasesize  name
mtd0: 00080000 00020000 "bl2"
mtd1: 00140000 00020000 "fip"
mtd2: 00100000 00020000 "factory"
mtd3: 07d00000 00020000 "ubi"
root@OpenWrt:~# ls /dev/u*
/dev/ubi0           /dev/ubi0_3         /dev/ubiblock0_4
/dev/ubi0_0         /dev/ubi0_4         /dev/ubiblock0_4p1
/dev/ubi0_1         /dev/ubi0_5         /dev/urandom
/dev/ubi0_2         /dev/ubi_ctrl
root@OpenWrt:~# df -h
Filesystem                Size      Used Available Use% Mounted on
tmpfs                   241.5M     15.6M    225.9M   6% /
tmpfs                   241.5M     72.0K    241.4M   0% /tmp
tmpfs                   512.0K         0    512.0K   0% /dev
root@OpenWrt:~# mount
tmpfs on / type tmpfs (rw,relatime)
proc on /proc type proc (rw,nosuid,nodev,noexec,noatime)
sysfs on /sys type sysfs (rw,nosuid,nodev,noexec,noatime)
cgroup2 on /sys/fs/cgroup type cgroup2 (rw,nosuid,nodev,noexec,relatime,nsdelegate)
tmpfs on /tmp type tmpfs (rw,nosuid,nodev,noatime)
tmpfs on /dev type tmpfs (rw,nosuid,noexec,noatime,size=512k,mode=755)
devpts on /dev/pts type devpts (rw,nosuid,noexec,noatime,mode=600,ptmxmode=000)
debugfs on /sys/kernel/debug type debugfs (rw,noatime)
none on /sys/fs/bpf type bpf (rw,nosuid,nodev,noexec,noatime,mode=700)
pstore on /sys/fs/pstore type pstore (rw,noatime)
root@OpenWrt:~# 

[dangowrt]

Probably there is still an recorded error log in /sys/fs/pstore because you wrongly flashed the non-UBI image. If so, clear pstore using rm /sys/fs/pstore/* and reboot, that should fix it and allow you to boot into production firmware again.

[master5597]

OK there was a single log file (dmesg-ramoops-0) in there. After deleting it everything seems good, Thanks!