I used to use Btrfs as my filesystem, but I recently moved my servers over to ZFS and now many of my containers will not work.
lxc info does say I have idmapping enabled and the documentation for LXD does seem to say that that should be enough, but alas, I only get the following:
Error: Failed to setup device mount "test": idmapping abilities are required but aren't supported on system
Try `lxc info --show-log instance` for more info
lxc info|grep idmap
This is on Ubuntu 23.04 with kernel 6.2.0-32-generic and ZFS 2.1.9-2ubuntu1.1
I have tried googling for a while now, but all the results I get seem to be talking about something different or about using raw.idmap and I don’t understand what am I doing wrong. Could someone more knowledgeable please explain why
shift=true doesn’t work with ZFS, when it worked just fine with Btrfs and how do I fix this? I am new to ZFS, so I wouldn’t be surprised if it was something I am missing, but that error message isn’t very useful in solving it.