Am 22.05.2014 18:12, schrieb Neil Bothwick: > I'm working on this btrfs malarkey and have a question about best > practice. It is recommended to leave the root volume empty and > create a subvolume for the root filesystem which is set with btrfs > subvolume set-default, which I have done.
Alternative: mount the subvol via option "subvolid" etc in fstab .... if you plan to mount different snapshots, for example. > What is the recommended way to create subvolumes that are mounted > further down the filesystem? Let's say I was usr and var on their > own subvolumes. Do I create them in the btrfs root, which means > they have to be mounted from /etc/fstab - or do I create hem below > the subvolume called root? I saw more examples mounting every dir via a separate line in fstab (which also adds the choice to mount them with different options, think compression etc). My understanding is: * create and use subvols for entities you want to be able to snapshot and rollback individually. * create and use subvols for entities you want to apply special options to: compression, (no)COW, quota ... I would mount each subvol via extra line and create them in parallel ... > That raises another question. Assuming I've done it wrong (well, my > wife always does) is there an equivalent to the zfs rename command > to move or rename a subvolume? As far as I understand you are allowed to mount the root volume (or academic: any subvol in a higher level) and use plain "mv" to rename the subvols as if you renamed sub-dirs. Stefan
