On Wed, Jul 11, 2012 at 3:10 AM, 1126 <mailinglists@xxxxxxxxxxxxxxxxxxxxx> wrote: > > So I now have a subvolume __active which represents /, one for home, one for usr > and one for var. [...] > Am I missing something or is just not possible to use different subvolumes (like > __active, home, usr, var) and being able to rollback your system during boot? As > far as I know btrfs-snapshots are not recursive. So wouldn't it be better > (being-able-to-rollback-wise) to just have one subvolume so that you can really > rollback everything in case something went wrong? Or is there a way to combine > the benefits of having different subvolumes and still being able to rollback the > system? nah, you're not missing anything, and are absolutely correct. i've no idea why the page now says what it does -- it appears to have been completely ... ehm ... butchered since myself and Eigrad/Andrew initially wrote it, oooh about 18 months ago: https://wiki.archlinux.org/index.php?title=Installing_on_Btrfs_root&oldid=129890 ... nor am i sure why so much red and yellow was strewn about; everything is (was?) confirmed/factual. sorry :-( i would recommend dropping the subvols ASAP, and reviewing the original wiki linked above. alas, i've heard -- and "seemingly" confirmed -- inklings that GRUB2 now supports booting from a btrfs subvol -- the magic feature required to perform kernel-level rollbacks! yay! as i have long since used GRUB2 on all my machines and am somewhat familiar with scripting it, i expect to make some extensive updates soon-ish-ly. i'm not sure how relevant/beneficial this discussion can be for everyone else here (though in general, the use-case itself is certainly worthy of discussion) -- should you have pointed/specific questions/problems feel free to ask in the AUR comments. -- C Anthony
