Re: Synching a Backup Server
From: Fajar A. Nugraha <hidden>
Date: 2011-01-10 02:22:49
On Mon, Jan 10, 2011 at 5:01 AM, Hugo Mills [off-list ref] w= rote:
=A0 There is a root subvolume namespace (subvolid=3D0), which may con=
tain
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=3D0? 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
=A0 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=3D0 mount option.
=2E.. and mounting with either subvolid=3D5 and subvolid=3D0 gives the = same result in my case. --=20 =46ajar -- To unsubscribe from this list: send the line "unsubscribe linux-btrfs" = in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html