sysupgrade oops
openwrt 24.10 is running than make sysupgrade but the upgrade was successful. but the user config is lost. don't now why /etc/init.d/ledtlt is there. has to be removed
cd /tmp
sysupgrade openwrt-realtek-rtl838x-teltonika_tsw202-squashfs-sysupgrade.bin
Sun Nov 16 22:37:42 CET 2025 upgrade: Saving config files...
/etc/init.d/ledtlt: line 1: !/bin/sh: not found
Sun Nov 16 22:37:50 CET 2025 upgrade: Commencing upgrade. Closing all shell sessions.
Command failed: Connection failed
Watchdog handover: fd=3
- watchdog -
Watchdog does not have CARDRESET support
Hangup
-ash: can't set tty process group: Not a tty
[1]+ Hangup sysupgrade openwrt-realtek-rtl838x-teltonika_tsw202-squashfs-sysupgrade.bin
root@tsw202-space:/tmp# Sun Nov 16 22:37:52 CET 2025 upgrade: Sending TERM to remaining processes ...
Sun Nov 16 22:37:56 CET 2025 upgrade: Sending KILL to remaining processes ...
[ 283.180806] stage2 (3722): drop_caches: 3
Sun Nov 16 22:38:03 CET 2025 upgrade: Switching to ramdisk...
mount: mounting /dev/mtdblock6 on /overlay failed: Resource busy
[ 290.700959] ------------[ cut here ]------------
[ 290.706299] WARNING: CPU: 0 PID: 3722 at fs/super.c:695 generic_shutdown_super+0x128/0x158
[ 290.715767] VFS: Busy inodes after unmount of jffs2 (jffs2)
[ 290.715803] Modules linked in: libcrc32c gpio_button_hotplug(O) crc32c_generic
[ 290.730247] CPU: 0 PID: 3722 Comm: busybox Tainted: G O 6.6.114 #0
[ 290.738740] Stack : 00000000 77e433c8 00000000 801686e8 00000000 00000004 00000000 00000000
[ 290.748241] 84065d34 80af0000 809b0000 8084f548 81ff5d88 00000001 84065cd8 18d40ef5
[ 290.757745] 00000000 00000000 8084f548 84065c28 ffffefff 00000000 00000000 ffffffea
[ 290.767240] 0000012a 84065bec 0000012a 00000000 00000001 8084f548 84065dd8 802b6330
[ 290.776734] 00000009 77e433c8 00000000 7f738a80 80927620 80453bf8 00000000 80af0000
[ 290.786231] ...
[ 290.788986] Call Trace:
[ 290.791720] [<801062b4>] show_stack+0x28/0xf0
[ 290.796649] [<8075ce88>] dump_stack_lvl+0x38/0x60
[ 290.801953] [<80127940>] __warn+0xb0/0xe4
[ 290.806485] [<80127a00>] warn_slowpath_fmt+0x8c/0xac
[ 290.812066] [<802b6330>] generic_shutdown_super+0x128/0x158
[ 290.818339] [<80487c74>] kill_mtd_super+0x14/0x30
[ 290.823654] [<80359e48>] jffs2_kill_sb+0x5c/0x74
[ 290.828846] [<802b784c>] deactivate_locked_super+0x4c/0xf8
[ 290.835024] [<802de8f4>] cleanup_mnt+0xac/0x15c
[ 290.840127] [<801465a8>] task_work_run+0x84/0xc4
[ 290.845346] [<801056a4>] do_notify_resume+0x15c/0x168
[ 290.851040] [<80101410>] work_notifysig+0x10/0x18
[ 290.856331]
[ 290.858508] ---[ end trace 0000000000000000 ]---
Sun Nov 16 21:38:10 UTC 2025 upgrade: Performing system upgrade...
[ 291.008327] do_stage2 (3722): drop_caches: 3
Unlocking firmware ...
Writing from <stdin> to firmware ... [e]