beta2 ongoing development

[mk01]

the logic is as follows:

standard installation expects any volume it might need to have @ subvolume, which is considered to be standard "running" copy (so root is mounted as subvol=root/@, home is mounted as subvol=home/@ etc)

btrfs-auto-snapshot for provides for users "rollback" command, which will make from desired snapshot (specified on command line) this one "running" snapshot named @ (previous @ is renamed to be as the specified "snapshot_rollback". so this way we don't have to touch any system config files (fstab, cmdline.txt, others).

but: we are not all users, we are power users, so we can just alter cmdline.txt and boot from what ever snapshot we want

as I edited the opening post last time, quite easy process of testing is to do it like:
1) boot from /@
2) create /@_test
3) alter cmdline.txt to boot from /@_test
4) run all the updates (I already updated xbian-update to respect subvol= parameter in cmdline.txt and not overwrite it with defaults even if cmdline.txt will change - it will simply take new cmdline.txt, but subvol= parameter is migrated)
5) edit cmdline.txt to boot from /@, reboot
6) destroy /@_test

so simple answer to your question (in case YOU are asking) would be YES. just use any snapshot you prefer. for standard user answer would be "technically it will work, but use rollback command"