boat

Yes of course. But documentation or FAQ should be somewhere and up2date. Its a lot of work / impossible for our small team to cover all aspects of a Linux system. But for at least Armbian specifics - which this is - we might have somehting.

Thanks!

Debian has some weird behaviour when using "su" because $PATH lacks /sbin for whatever reason. /sbin/chroot instead of chroot might work

I have downgraded kernel on my odroid xu4 and now is booting again.
This were my steps:
 
#mount sd (use lsblk to indentify your sd device) mount /dev/sda1 /mnt/armbi_root #install qemu to execute arm inside amd64 apt install qemu-user-static #and copy it to sd cp /usr/bin/qemu-arm-static /mnt/armbi_root/usr/bin/ #mount pseudo-filesystems needed mount -t proc /proc /mnt/armbi_root/proc mount --rbind /sys /mnt/armbi_root/sys mount --rbind /dev /mnt/armbi_root/dev mount --rbind /run /mnt/armbi_root/run #chrooting sd chroot /mnt/armbi_root /usr/bin/qemu-arm-static /bin/bash #show installed previous versions apt-cache madison linux-image-current-odroidxu4 apt-cache madison linux-dtb-current-odroidxu4 #install working previous version (mine was 24.11.1 - kernel-6.6.60) apt install linux-image-current-odroidxu4=24.11.1 apt install linux-dtb-current-odroidxu4=24.11.1 #rebuild initramfs (maybe this is not necessary, but do not harm) update-initramfs -u #exiting chroot exit #unmonting sd for finishing umount -R /mnt/armbi_root  

XU4 / HC1 is fixed by 
https://github.com/armbian/build/commit/5115cdf47a91f9cf5eb15f1b4984deebbe329002
Images are in generation, update is going out when possible. (broken updates were also disabled, but takes time for repo to sync)