similar to: Root btrfs partition listed twice?

On Wed, Jul 06, 2016 at 05:33:01PM +0300, Maxim Perevedentsev wrote: > Hello everyone! > > I have an issue with OpenSUSE-42.1 (I guess this is the only distro > with btrfs snapshots by default). > As we remember, list_filesystems returns btrfs snapshots along with devices. > > ><fs> list-filesystems > /dev/sda1: swap > btrfsvol:/dev/sda2/@: btrfs >

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>

When listing the subvolumes of a btrfs filesystem, ignore the default subvolume: we get the content of it when mounting the whole device (without specifying any particular subvolume), so avoid listing it twice. --- src/listfs.c | 9 +++++++++ 1 file changed, 9 insertions(+) diff --git a/src/listfs.c b/src/listfs.c index 98e74c7..de3b6f5 100644 --- a/src/listfs.c +++ b/src/listfs.c @@ -169,8

Cédric pointed out this problem we have: $ guestmount -a /var/lib/libvirt/images/sles12sp1-pv.img -m '/dev/sda1:/:subvol=.snapshots/2/snapshot:btrfs' /mnt libguestfs: error: mount_vfs: /dev/sda1 on / (options: 'subvol=.snapshots/2/snapshot'): mount: mount(2) failed: No such file or directory guestmount: '/dev/sda1' could not be mounted. guestmount: Check mount(8) man page

We've currently got a bug in libguestfs which means we can't inspect filesystems in btrfs subvolumes: https://bugzilla.redhat.com/show_bug.cgi?id=824021 This is the default configuration if you select btrfs in F17+. The issue is that it requires an api to fix it, as the return values of inspect_os, inspect_get_filesystems and inspect_get_mountpoints can't express a btrfs

[PATCH 1/7] mount: Add mount_vfs_nochroot This is significantly reworked from before. umount is gone as discussed, and variable motion is minimised. [PATCH 2/7] btrfs: Update btrfs_subvolume_list to take Already provisionally ACKed. Previous comment was that cleanup could be tidier. I looked into creating a new cleanup function for fs_buf, but it isn't possible (or simple, anyway) in this

On Thu, 2016-02-25 at 19:10 +0000, Richard W.M. Jones wrote: > On Thu, Feb 25, 2016 at 05:50:57PM +0100, Pino Toscano wrote: > > When listing the subvolumes of a btrfs filesystem, ignore the > > default > > subvolume: we get the content of it when mounting the whole device > > (without specifying any particular subvolume), so avoid listing it > > twice. > >

I am a relative newcomer to using extlinux. I am running Fedora 20 which means I am using syslinux 4.05. When I noticied that all of your documentation said that booting off ext234 and btrfs was supported, I gave it a try. Indeed, this does work with the boot files and the extlinux directory installed into the btrfs (root) volume. Has any thought been given to supporting supporting

v2: - Moved the btrfs available test into the subclause where it is used. Note I got tired of fighting emacs indentation mode and I pushed a whitespace only patch which fixes the indentation to be 4 spaces instead of 2 spaces: https://github.com/libguestfs/libguestfs/commit/df54c75d4c53ed580e5269306e11e0758d169452 This v2 patch requires that one. Rich.

Create the fedora-btrfs.img as an empty file. The only place this is used explicitly is tests/mountable/ test-mountable-inspect.sh, but that test already skips if !btrfs. Also this is used via guests-all-good.xml, but the script that creates this XML skips the file if it has zero size. --- test-data/phony-guests/make-fedora-img.pl | 52 +++++++++++++++-------- 1 file changed, 35 insertions(+),

Hey there! Here are a few patches to fix unrelated things: one fixes the configure for older ncurses releases having no pkg-config files. The other two are fixing what Richard mentioned about guestfs subvolumes display Cédric Bosdonnat (3): configure: handle older version of ncurses api: add mountable_device and mountable_subvolume fish: fix btrfs subvolumes display in error case

Hi all, Here is version 2 of the patch series, including the changes for Pino's remarks. Cédric Bosdonnat (3): configure: handle older version of ncurses api: add mountable_device and mountable_subvolume fish: fix btrfs subvolumes display in error case fish/options.c | 28 ++++++++++++++++++++++++++- generator/actions.ml | 26 +++++++++++++++++++++++++

The code to parse btrfs subvol entries in /etc/fstab failed if the entry had more than one comma-separated option, for example: /dev/sda4 /home btrfs rw,user,subvol=foo 0 0 This commit fixes that code to use Augeas correctly. Fixes commit 7ba0e10501f23358c38939930d613bf2393d744d. Reported by: Zhongfu Li https://bugs.launchpad.net/ubuntu/+source/libguestfs/+bug/1615337 ---

Hello syslinux list, I have installed Arch over a btrfs-formatted dos/MBR primary partition* (no btrfs subvolumes, just installing everything including /boot in the root of the btrfs). I have been unsuccessful for several days trying to get it to boot with syslinux (6.02-8 package from Arch, also tried 4.07-1 Arch package). All I am getting is the copyright header line and a blinking cursor

This type is initially identical to Device. --- generator/bindtests.ml | 2 +- generator/c.ml | 7 +++++-- generator/csharp.ml | 6 ++++-- generator/daemon.ml | 4 ++-- generator/erlang.ml | 6 +++--- generator/fish.ml | 8 ++++---- generator/gobject.ml | 11 ++++++----- generator/haskell.ml | 11 +++++++---- generator/java.ml | 10 +++++-----

I booted the guest in which i was testing btrfs (transient ENOSPC issues, etc). It booted in emergency mode. [ 6.705187] device label testfs1 devid 1 transid 4141 /dev/sdb1 [ 6.724353] device label fedora devid 1 transid 2036 /dev/sda2 [ 6.780931] device label fedora devid 1 transid 2036 /dev/sda2 [ 6.817157] snd_hda_intel 0000:00:04.0: irq 42 for MSI/MSI-X [ 6.818326]

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

Hi there, Latest and greatest version including all new remarks from both Pino and Rich. Cédric Bosdonnat (3): configure: handle older version of ncurses api: add mountable_device and mountable_subvolume fish: fix btrfs subvolumes display in error case fish/options.c | 28 ++++++++++++++++++++++++++- generator/actions.ml | 26 +++++++++++++++++++++++++ m4/guestfs_libraries.m4

I notice this question on the wiki/faq: https://btrfs.wiki.kernel.org/index.php/UseCases#What_is_best_practice_when_partitioning_a_device_that_holds_one_or_more_btr-filesystems and as it hasn''t been answered, can anyone make any comments on the subject Various things come to mind: a) partition the disk, create an LVM partition, and create lots of small LVs, format each as btrfs b)

Hello Gene, thanks for your reply. Yes BIOS mode. The config wants a menu, which loads fine under ext4 and not under btrfs. Under btrfs I have also tried to remove the syslinux.cfg file altogether (which should trigger the boot: prompt if I am not mistaken) and the result is the same: only the copyright line appears and no prompt. The three letter sequence is EDD. The disk is 160GB, here is the