BTRFS is completly unusable on 15.10
| Affects | Status | Importance | Assigned to | Milestone | |
|---|---|---|---|---|---|
| btrfs-tools (Ubuntu) |
New
|
Undecided
|
Unassigned | ||
Bug Description
btrfs can see subvolumes but can't manipulate them. For example I can list subvolumes:
sudo btrsfs subvol list /
ID 385 gen 77889 top level 5 path @
ID 416 gen 77410 top level 5 path @apt-snapshot-
ID 417 gen 77742 top level 5 path @apt-snapshot-
ID 418 gen 77412 top level 417 path @apt-snapshot-
ID 419 gen 77413 top level 5 path @apt-snapshot-
But I cant delete them:
sudo btrfs subvol delete /@apt-snapshot-
ERROR: error accessing '/@apt-
Even if I mount rootfs in another mountpoint:
sudo mount /dev/mapper/
sudo btrfs subvol delete /mnt/@apt-
ERROR: error accessing '/mnt/@
I can't see subvolumes in root directory, I see files in subvolumes.
ls /mnt/
bin dev initrd.img lib32 mnt root srv usr vmlinuz.old
boot etc initrd.img.old lib64 opt run sys var
core home lib
When I'm boot live Ubuntu 15.04 from CD I can manipulate subvolumes with no problems.
ProblemType: Bug
DistroRelease: Ubuntu 15.10
Package: btrfs-tools 4.0-2
ProcVersionSign
Uname: Linux 4.2.0-17-lowlatency x86_64
ApportVersion: 2.19.1-0ubuntu3
Architecture: amd64
Date: Sat Oct 24 14:25:58 2015
InstallationDate: Installed on 2015-02-13 (252 days ago)
InstallationMedia: Ubuntu 14.10 "Utopic Unicorn" - Release amd64 (20141022.1)
SourcePackage: btrfs-tools
UpgradeStatus: Upgraded to wily on 2015-10-23 (0 days ago)
| QkiZ (qkiz) wrote | #1 |
| Alexander Fougner (fougner) wrote | #2 |
| QkiZ (qkiz) wrote | #3 |
Hi,
Is it possible that you've set the default subvolume to something else than the actual filesystem root? You can check this by doing the following.
$ sudo btrfs subvol get-default <mountpoint>
Also, after you try to mount the root in /mnt, could you please post the output of the relevant parts of /proc/mounts ?