Hi Taz!
I am trying to replicate your success with booting Debian Trixie on the Teclast T60AI tablet using the Radxa OS vendor kernel (6.6.98-vendor-sun60iw2 from the Radxa-cubie-a7z-v0.6.4 build).
I am very close, but I've hit a dead end with a kernel panic on the very last stage of the boot process. I would really appreciate your advice on how you bypassed this.
[ 10.852267] EXT4-fs (sda28): mounted filesystem ...
[ 10.866540] VFS: Mounted root (ext4 filesystem) readonly on device 259:12.
[ 10.875759] devtmpfs: mounted
[ 10.881784] Freeing unused kernel memory: 1920K
[ 10.887909] Run /sbin/init as init process
[ 16.097167] request_module: modprobe binfmt-0000 cannot be processed, kmod busy with 50 threads for more than 5 seconds now
[ 16.102268] Kernel panic - not syncing: Requested init /sbin/init failed (error -8).