Using grub-btrfs in ubuntu

[taspenwall]

I've got grub-btrfs installed on ubuntu and it's doing it's thing updating grub with my snap shots. However I'm not able to fully boot my system from a read-only snapshot. I get hung up starting gdm3. I've got /var/tmp, /var/log, /var/cache all on separate subvolumes. On my arch machine that's all it took to get a booting system. So I'm wondering if anyone has any help for getting it working on ubuntu? Thanks

[taspenwall]

I found out how to make snaps read write and that's good enough for me