On Tue, Jun 09, 2015 at 07:55:05PM +0200, pubny@xxxxxxxxx wrote: > Hi, > > I've noticed this "@" sign in the subvolume's path with SLES12. I'm > wondering what is its purpose. openSUSE 13.2 doesn't seem to be using > it. They created a subvolume called "@" and then put all the other subvolumes under there. There's nothing special about it. The @ is often used as a prefix on subvolumes (e.g. in Ubuntu) to indicate that they're subvolumes, but it's not required, and doesn't have any extra meaning beyond being a useful naming convention. Hugo. > Thanks, > Gábor > > > SLES12: > # btrfs sub list / > ID 257 gen 2270 top level 5 path @ > ID 258 gen 1655 top level 257 path @/boot/grub2/i386-pc > ID 259 gen 4263 top level 257 path @/boot/grub2/x86_64-efi > ID 260 gen 4037 top level 257 path @/opt > ID 261 gen 2553 top level 257 path @/srv > ID 262 gen 4521 top level 257 path @/tmp > ID 263 gen 4492 top level 257 path @/usr/local > ID 264 gen 1655 top level 257 path @/var/crash > ID 265 gen 1655 top level 257 path @/var/lib/mailman > ID 266 gen 1655 top level 257 path @/var/lib/named > ID 267 gen 1655 top level 257 path @/var/lib/pgsql > ID 268 gen 4523 top level 257 path @/var/log > ID 269 gen 1655 top level 257 path @/var/opt > ID 270 gen 4524 top level 257 path @/var/spool > ID 271 gen 4521 top level 257 path @/var/tmp > ID 275 gen 4505 top level 257 path @/.snapshots > > > openSUSE 13.2: > > # btrfs subvol list / > ID 257 gen 3481911 top level 5 path boot/grub2/i386-pc > ID 258 gen 3481911 top level 5 path boot/grub2/x86_64-efi > ID 259 gen 3517714 top level 5 path home > ID 260 gen 3515789 top level 5 path opt > ID 261 gen 3513493 top level 5 path srv > ID 262 gen 3513372 top level 5 path tmp > ID 263 gen 3517660 top level 5 path usr/local > ID 264 gen 3513372 top level 5 path var/crash > ID 265 gen 3513372 top level 5 path var/lib/mailman > ID 266 gen 3513372 top level 5 path var/lib/named > ID 267 gen 3513372 top level 5 path var/lib/pgsql > ID 268 gen 3517714 top level 5 path var/log > ID 269 gen 3513372 top level 5 path var/opt > ID 270 gen 3517714 top level 5 path var/spool > ID 271 gen 3517706 top level 5 path var/tmp > ID 276 gen 3517669 top level 5 path .snapshots -- Hugo Mills | ... one ping(1) to rule them all, and in the hugo@... carfax.org.uk | darkness bind(2) them. http://carfax.org.uk/ | PGP: E2AB1DE4 | Illiad
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