[Bug 1219183] [NEW] btrfs-tools does not handle btrfs-filesystem in 3.8 kernel

[Heiko]

Public bug reported:

I am using ubuntu 12.04.3 with the raring kernel (3.8). I used btrfs-
convert to convert a ext4 partitition to btrfs. I tested the new
filesystem for a while, but didn't like the performance and wanted to go
back with btrfs-convert -r, but neither btrfs-convert or btrfsck where
able to do anything with the filesystem.


After upgrading to 
https://launchpad.net/ubuntu/quantal/i386/btrfs-tools/0.19+20120328-4
btrfs-convert -r was running nicely. Unfortunately, I lost the exact error message of the old btrfs-convert in the rollback process. It was somethink like the partition not being a btrfs-filesystem.


(Eventually related to https://bugs.launchpad.net/ubuntu/+source/btrfs-tools/+bug/894456)

Heiko


~>uname -a
Linux askeladden 3.8.0-29-generic #42~precise1-Ubuntu SMP Wed Aug 14 16:19:23 UTC 2013 x86_64 x86_64 x86_64 GNU/Linux

~>lsb_release -rd
Description:	Ubuntu 12.04.3 LTS
Release:	12.04

~>apt-cache policy btrfs-tools
btrfs-tools:
  Installed: (none)
  Candidate: 0.19+20100601-3ubuntu3
  Version table:
     0.19+20100601-3ubuntu3 0

** Affects: btrfs-tools (Ubuntu)
     Importance: Undecided
         Status: New

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https://bugs.launchpad.net/bugs/1219183

Title:
  btrfs-tools does not handle btrfs-filesystem in 3.8 kernel

Status in “btrfs-tools” package in Ubuntu:
  New

Bug description:
  I am using ubuntu 12.04.3 with the raring kernel (3.8). I used btrfs-
  convert to convert a ext4 partitition to btrfs. I tested the new
  filesystem for a while, but didn't like the performance and wanted to
  go back with btrfs-convert -r, but neither btrfs-convert or btrfsck
  where able to do anything with the filesystem.

  
  After upgrading to 
  https://launchpad.net/ubuntu/quantal/i386/btrfs-tools/0.19+20120328-4
  btrfs-convert -r was running nicely. Unfortunately, I lost the exact error message of the old btrfs-convert in the rollback process. It was somethink like the partition not being a btrfs-filesystem.

  
  (Eventually related to https://bugs.launchpad.net/ubuntu/+source/btrfs-tools/+bug/894456)

  Heiko

  
  ~>uname -a
  Linux askeladden 3.8.0-29-generic #42~precise1-Ubuntu SMP Wed Aug 14 16:19:23 UTC 2013 x86_64 x86_64 x86_64 GNU/Linux

  ~>lsb_release -rd
  Description:	Ubuntu 12.04.3 LTS
  Release:	12.04

  ~>apt-cache policy btrfs-tools
  btrfs-tools:
    Installed: (none)
    Candidate: 0.19+20100601-3ubuntu3
    Version table:
       0.19+20100601-3ubuntu3 0

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