[Bug 531599] [NEW] tricky leftovers when using a too small --raw device

[Simon Huerlimann]

Public bug reported:

I've tried to install a vm using an LVM logical volume with --raw. The
problem was that I used a too small logical volume.

vmbuilder told me:
2010-03-03 21:33:59,923 INFO    : Adding partition table to disk image: /dev/mapper/leo01-test--disk
2010-03-03 21:34:00,007 INFO    : Adding type 1 partition to disk image: /dev/mapper/leo01-test--disk
2010-03-03 21:34:00,879 INFO    : Adding type 3 partition to disk image: /dev/mapper/leo01-test--disk
2010-03-03 21:34:00,890 INFO    : [0] ../../libparted/filesys.c:147 (ped_file_system_type_get): File system alias linux-swap(new) is deprecated
2010-03-03 21:34:00,892 INFO    : Cleaning up
Traceback (most recent call last):
  File "/usr/bin/vmbuilder", line 29, in <module>
    VMBuilder.run()
  File "/usr/lib/python2.6/dist-packages/VMBuilder/__init__.py", line 65, in run
    frontend.run()
  File "/usr/lib/python2.6/dist-packages/VMBuilder/plugins/cli/__init__.py", line 68, in run
    vm.create()
  File "/usr/lib/python2.6/dist-packages/VMBuilder/vm.py", line 480, in create
    disk.create_partitions(self)
  File "/usr/lib/python2.6/dist-packages/VMBuilder/disk.py", line 416, in create_partitions
    disk.create(vm.workdir)
  File "/usr/lib/python2.6/dist-packages/VMBuilder/disk.py", line 100, in create
    part.create(self)
  File "/usr/lib/python2.6/dist-packages/VMBuilder/disk.py", line 244, in create
    run_cmd('parted', '--script', '--', disk.filename, 'mkpart', 'primary', self.parted_fstype(), self.begin, self.end)
  File "/usr/lib/python2.6/dist-packages/VMBuilder/util.py", line 135, in run_cmd
    raise VMBuilderException, "Process (%s) returned %d. stdout: %s, stderr: %s" % (args.__repr__(), status, stdout, stderr)
VMBuilder.exception.VMBuilderException: Process (['parted', '--script', '--', '/dev/mapper/leo01-test--disk', 'mkpart', 'primary', 'linux-swap(new)', '9', '1032']) returned 1. stdout: Error: The location 1032 is outside of the device /dev/mapper/leo01-test--disk.
, stderr: [0] ../../libparted/filesys.c:147 (ped_file_system_type_get): File system alias linux-swap(new) is deprecated

While this is a lot of noise, telling me 'location 1032 is outside of
the device...' made me recognize my mistake.

The problem is that I wasn't able to just remove the logical volume, create a bigger one and start again:
 sudo lvremove /dev/mapper/leo01-test--disk
   Can't remove open logical volume "test-disk"

The reason is that there's another device map set up by vmbuilder:
/dev/mapper/leo01-test--diskp1

This is because the first (root) partition did fit on the logical
volume, but only the second (swap) one not.

I had to drop the device mapping using
 sudo dmsetup remove /dev/mapper/leo01-test--diskp1

This would allow me to lvremove the logical volume now.

I would expect that vmbuilder cleans up on exceptions like this and
remove the device mappings for the inner partitions.

** Affects: vm-builder (Ubuntu)
     Importance: Undecided
         Status: New

-- 
tricky leftovers when using a too small --raw device
https://bugs.launchpad.net/bugs/531599
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