Bug 134531 - pvmove fails with device-mapper error
Summary: pvmove fails with device-mapper error
Status: CLOSED RAWHIDE
Alias: None
Product: Red Hat Enterprise Linux 4
Classification: Red Hat
Component: lvm2   
(Show other bugs)
Version: 4.0
Hardware: i386 Linux
medium
medium
Target Milestone: ---
: ---
Assignee: Alasdair Kergon
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TreeView+ depends on / blocked
 
Reported: 2004-10-04 14:34 UTC by Marc Wallman
Modified: 2007-11-30 22:07 UTC (History)
0 users

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Doc Type: Bug Fix
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Last Closed: 2004-10-04 20:36:36 UTC
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Description Marc Wallman 2004-10-04 14:34:48 UTC 
Description of problem:

pvmove fails with device-mapper error.

The system with the problem was installed from scratch with 
a root LVM filesystem. After installation, an old LVM1 volume
group (localvg1) was converted to LVM2 and imported into new 
volume group (localvg2). All volumes function properly other
than the pvmove failing. The old volume group was created
under RHEL v3WS.

Version-Release number of selected component (if applicable):

lvm2-2.00.21-2
kernel-2.6.8-1.528.2.10

How reproducible:

Every time

Steps to Reproduce:
1. Run pvmove
2.
3.
  
Actual results:

[root@rutabaga ~]# pvmove -v -n /dev/localvg2/home /dev/sda1 /dev/hda2
    Finding volume group "localvg2"
    Archiving volume group "localvg2" metadata.
    Creating logical volume pvmove0
  mirror: Required device-mapper target(s) not detected in your kernel
[root@rutabaga ~]#    


Expected results:

The move should succeed.

Additional info:
Comment 1 Alasdair Kergon 2004-10-04 20:36:36 UTC 
You'll need to load the dm-mirror module into your kernel.

Newest 'mkinitrd' see this done automatically at boot time.

(See also bz #122991.)
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