similar to: Fwd: Deleting a Subvol from a Cancelled Btrfs-Send

On Fri, Oct 10, 2014 at 01:47:01PM +0200, Olaf Hering wrote: > > Is btrfs subvol support failing just for me? Looks like nothing adds the > required '@/' string. virt-ls uses the first variant of the command: > > ><rescue> mount -vo subvol=var/spool,ro /dev/sda2 /sysroot/ > [ 113.852047] BTRFS info (device sda2): disk space caching is enabled > [

Is btrfs subvol support failing just for me? Looks like nothing adds the required '@/' string. virt-ls uses the first variant of the command: ><rescue> mount -vo subvol=var/spool,ro /dev/sda2 /sysroot/ [ 113.852047] BTRFS info (device sda2): disk space caching is enabled [ 113.852869] BTRFS: has skinny extents mount: mount(2) failed: No such file or directory ><rescue>

Hello, recently I installed a distribution I want to look at via chroot into a btrfs subvolume on a multidevice btrfs. Now I tried to boot this, the kernel command line in GRUB looks as follows so far: /kernel-2.6.29-rc7-git3 root=/dev/sdb7 rootfstype=btrfs rootflags=device=/dev/sda1,subvol=archroot This gives "VFS: cannot find sdb7 or bad block", like it would when trying to mount

On Fri, Oct 10, Olaf Hering wrote: > Is btrfs subvol support failing just for me? This is an old thread, and it seems the underlying bug is not fixed because guestfs takes the wrong approach, IMO. >From how I understand btrfs, it has the concept of subvolumes. Each one is an entry point for a separate filesystem. In addition to that it has a default subvol which is used if no specific

Hi, I will send a series patches that add snapshot/subvol deletion soon. But the way to delete snapshot/subvol is far from people''s expectancy. To delete a snapshot/subvol, we need four steps: 1) snapshot/subvol deletion ioctl or rmdir; 2) umount; 3) btrfsck; 4) mount the fs. The reason for this is bug in root back & forward references. In simple terms, the bug prevents us from

We want ''btrfs subvolume list'' only to list readonly subvolumes, this patch set introduces a new option ''r'' to implement it. You can use the command like that: btrfs subvolume list -r <mnt> Changelog v2 -> v3: - re-implement list_subvols() - re-implement this read-only subvolume list function based on the new list_subvols() Changelog v1 -> v2: -

Set the subvol root inode permissions based on the current umask. --- fs/btrfs/inode.c | 6 ++++-- 1 files changed, 4 insertions(+), 2 deletions(-) diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c index 32214fe..b88e71a 100644 --- a/fs/btrfs/inode.c +++ b/fs/btrfs/inode.c @@ -6696,8 +6696,10 @@ int btrfs_create_subvol_root(struct btrfs_trans_handle *trans, int err; u64 index = 0; -

Since theres not a good way to make sure the user sees the original default root tree id, and not to mention it''s 5 so is way different than any other volume, just make subvol=0 mount the original default root. This makes it a bit easier for users to handle in the long run. Thanks, Signed-off-by: Josef Bacik <josef@redhat.com> --- fs/btrfs/super.c | 12 +++++++++--- 1 files

On Thu, Oct 16, Olaf Hering wrote: > I can probably add a check somewhere to catch the whatever=="@". A > better fix would be to check if a given subvolume is for the entire > partition. So after talking to David Sterba there is no way to tell if a given subvolume is for the entire partition. Also my attempt to "fix" it by using the -o option is unreliable. Richard,

When mounting a subvolume by name, mountinfo shows the name of the subvolume. When mounting a subvolume using subvolid it does not. Seems like a problem when trying to determine what is mounted. -o subvol=<name> # cat /proc/self/mountinfo | grep vda 43 34 0:29 /home /home rw,relatime shared:29 - btrfs /dev/vda1 rw,seclabel,space_cache 44 34 0:29 /boot /boot rw,relatime shared:30 - btrfs

On Fri, Oct 10, Richard W.M. Jones wrote: > My guess is that the last one (opt/value) will be different for you. Thanks for the pointers. I will poke around. At least augtool on the host seems to behave correctly: olaf@bax:~ $ cd /dev/shm/$$ bash: cd: /dev/shm/3570: Datei oder Verzeichnis nicht gefunden olaf@bax:~ $ mkdir $_ olaf@bax:~ $ cd $_ olaf@bax:/dev/shm/3570 $ mkdir etc

On Friday 17 October 2014 11:25:03 Olaf Hering wrote: > On Thu, Oct 16, Olaf Hering wrote: > > I can probably add a check somewhere to catch the whatever=="@". A > > better fix would be to check if a given subvolume is for the entire > > partition. > > So after talking to David Sterba there is no way to tell if a given > subvolume is for the entire

Add a mount option user_subvol_rm_allowed that allows users to delete a (potentially non-empty!) subvol when they would otherwise we allowed to do an rmdir(2). We duplicate the may_delete() checks from the core VFS code to implement identical security checks (minus the directory size check). Signed-off-by: Sage Weil <sage@newdream.net> --- fs/btrfs/ctree.h | 1 + fs/btrfs/ioctl.c |

I've just tried putting usr in a subvol. Installation proceeds normally, no errors, but I'm dropped to a dracut prompt which indicates mount of /usr failed. dmesg follows: [ 14.025215] systemd[1]: Starting dracut initqueue hook... [ 14.077890] Btrfs loaded [ 14.129987] device label fedora_f18v devid 1 transid 31 /dev/sda1 [ 14.313607] device label fedora_f18v devid 1 transid 31

Hi Chris, This is the extent of my current queue of Btrfs snapshot/subvol/commit stuff. Most of these were posted several months ago. Can be sent upstream during this merge window? Not having this functionality is becoming a bit of a roadblock for our efforts to keep the Ceph data in a consistent state. These patches are also available from

Hi, I just noticed one of my XEN domU''s rebooting by itself. No one was logged in and it wasn''t under load, but just rebooted. It rebooted again about an hour or 2 later Is there any way to see why to see what caused this, either from domU, or dom0 ? /var/log/messages has no indicative reason, but here it is: Aug 1 18:47:06 venus shutdown[13758]: shutting down for system

Hi folks - I am configuring a new system and the antispam plugin is the last piece I need, everything else is working. Thanks to Johannes for this plugin, it's exactly what I want and an elegant solution for filter training. But I've been trying everything I can think of for the last 3 days to get this to work, no success. I've got: Postfix 2.5.3, dspam 3.8.0, Dovecot 1.1.6,

Hi Junaid, Sorry about the confusion, indeed I gave you the wrong output. So let's start to the beginning. I disabled quota and I reactivated it My configuration : Volume Name: venus Type: Distributed-Replicate Status: Started Number of Bricks: 2 x 2 = 4 Transport-type: tcp Bricks: Brick1: ylal3020:/soft/venus Brick2: ylal3030:/soft/venus Brick3: yval1000:/soft/venus Brick4:

Dear all, Since couple of weeks, I'm trying to configure Samba to get UID & GID from Windows 2003 AD. I read samba documentation & how to, but it still not working. Here are the tasks I've perform: - I installed SFU on my Windows 2003 Server - I configure /etc/samba/smb.conf: # Global parameters [global] workgroup = TOTO netbios name = VENUS encrypt

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Date: Wed, 19 Aug 1998 23:30:58 +0200 (EEST) From: Marcin Bohosiewicz <marcus@venus.wis.pk.edu.pl> To: redhat-announce-list@redhat.com Subject: screen-3.7.4 (security update) Message-ID: <Pine.LNX.3.96.980819232924.15924A-100000@venus.wis.pk.edu.pl> I updated my package after BUGTRAQ fix for tmp-races in screen package. I built