Attended sysupgrade failure

Installing and Using OpenWrt
1

Hi I tried to do an Attended Sysupgrade from LUCI but it didnt work
so i went to the CLI and used the OWUT upgrade command

This is the output below , how can i make this work ?

thanks

root@OpenWrt:~# owut upgrade
ASU-Server     https://sysupgrade.openwrt.org
Upstream       https://downloads.openwrt.org
Target         x86/64
Profile        generic
Package-arch   x86_64
Version-from   25.12.0-rc2 r32429-d76c64ad00 (kernel 6.12.63)
Version-to     25.12.1 r32768-b21cfa8f8c (kernel 6.12.74)
150 packages are out-of-date
There are 0 missing and 1 modified default packages
Request hash:
  72e6ac2da948b1136d6ea0e611ea6ca9572c16c7e453c68faf883fd3e8778d86
--
Status:   queued - 0 ahead of you
Progress:   0s total =   0s in queue +   0s in build
--
Status:   init
Progress:   0s total =   0s in queue +   0s in build
--
Status:   validate_manifest
Progress:  27s total =   0s in queue +  27s in build
--
Status:   building_image
Progress: 247s total =   0s in queue + 247s in build
--
Status:   done
Progress: 249s total =   0s in queue + 249s in build

Build succeeded in 249s total =   0s in queue + 249s to build:
Image saved : /tmp/firmware.bin
ERROR: sysupgrade validation failed:
stderr =
Sat Mar 21 11:41:53 UTC 2026 upgrade: Image metadata not present
Sat Mar 21 11:41:53 UTC 2026 upgrade: Unable to determine upgrade device
Image check failed.
2

Now, edit your post, and use the </> button on top of the edit window, to remove the formatting in the cli part you pasted.

3

After reading i have seen that it may be down to the fitblk package but i cant seem to find it to install it

using apk add fitblk just gives no such package

4

Missing fitblk was something in early 24.10,

5

Ok thanks thats all i could find about it im a bit stuck on why it will not upgrade