[Libguestfs] Root btrfs partition listed twice?

Richard W.M. Jones rjones at redhat.com
Fri Apr 25 20:03:45 UTC 2014


On Fri, Apr 25, 2014 at 01:12:08PM -0600, Mike Latimer wrote:
> Hi,
> 
> I know btrfs complicates filesystem lists due to the use of subvolumes. 
> However, I just noticed that the root partition itself ends up being listed 
> twice with list-filesystems, inspect-os, inspect-get-roots, etc...  I'm seeing 
> this in version 1.26, but haven't found anything directly resolving this in 
> newer versions.

I'm fairly certain this is a bug.  Matt?

Rich.

> These commands all show the partition listed twice as in the following output:
> 
> ><fs> inspect-get-roots 
> /dev/sda2
> btrfsvol:/dev/sda2/@
> 
> The output above complicates the existing virt-v2v process, as it prompts 
> users to select the appropriate root filesystem. (Either one works for the 
> conversion.) I've patched v2v to strip out the duplicate 'btrfsvol' entry if 
> the partition itself is in both strings, but wanted to run the problem past 
> the list before working around it at that level.
> 
> Has this issue been seen before?
> 
> For the record, here's the full filesystem list:
> 
> ><fs> list-filesystems 
> /dev/sda1: swap
> btrfsvol:/dev/sda2/@: btrfs
> btrfsvol:/dev/sda2/boot/grub2/i386-pc: btrfs
> btrfsvol:/dev/sda2/boot/grub2/x86_64-efi: btrfs
> btrfsvol:/dev/sda2/home: btrfs
> btrfsvol:/dev/sda2/opt: btrfs
> btrfsvol:/dev/sda2/srv: btrfs
> btrfsvol:/dev/sda2/tmp: btrfs
> btrfsvol:/dev/sda2/usr/local: btrfs
> btrfsvol:/dev/sda2/var/crash: btrfs
> btrfsvol:/dev/sda2/var/lib/mailman: btrfs
> btrfsvol:/dev/sda2/var/lib/named: btrfs
> btrfsvol:/dev/sda2/var/lib/pgqsl: btrfs
> btrfsvol:/dev/sda2/var/log: btrfs
> btrfsvol:/dev/sda2/var/opt: btrfs
> btrfsvol:/dev/sda2/var/spool: btrfs
> btrfsvol:/dev/sda2/var/tmp: btrfs
> btrfsvol:/dev/sda2/.snapshots: btrfs
> /dev/sda2: btrfs
> 
> Thanks!
> Mike
> 
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-- 
Richard Jones, Virtualization Group, Red Hat http://people.redhat.com/~rjones
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