On Mon, Jan 10, 2011 at 5:01 AM, Hugo Mills <hugo-lkml@xxxxxxxxxxxxx> wrote: > There is a root subvolume namespace (subvolid=0), which may contain > files, directories, and other subvolumes. This root subvolume is what > you see when you mount a newly-created btrfs filesystem. Is there a detailed explanation in the wiki about subvolid=0? What does "top level 5" in the output of "btrfs subvolume list" mean (I thought "5" was subvolid for root subvolume)? # btrfs subvolume list / ID 256 top level 5 path maverick-base ID 257 top level 5 path kernel-2.6.37 > > The default subvolume is simply what you get when you mount the > filesystem without a subvol or subvolid parameter to mount. Initially, > the default subvolume is set to be the root subvolume. If another > subvolume is set to be the default, then the root subvolume can only > be mounted with the subvolid=0 mount option. ... and mounting with either subvolid=5 and subvolid=0 gives the same result in my case. -- Fajar -- To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
