Bug#570232: clvm: Missing cmirror means no pvmove support?

Russell Howe rhowe at bmtmarinerisk.com
Wed Feb 17 13:44:45 UTC 2010

Package: clvm
Version: 2.02.39-7
Severity: important

Forgive me if I'm mistaken, but it seems impossible to use pvmove on
lenny with clustered volume groups.

# pvmove /dev/mapper/3600508b30094ae20a92f2e5ab341002e
FATAL: Module dm_cmirror not found.
   /sbin/modprobe failed: 1

As far as I understand it (and I have found next to no documentation) in
order to use pvmove on clvm you need cmirror, which is a kernel module.

It doesn't seem to be provided by any Debian package that I can find,
nor does it seem to be in the mainline kernel.

I found a comment in the changelog for the redhat-cluster package, which

    * Stop shipping cmirror kernel module in coordination with upstream.


I'm not sure what that changelog entry means, or even if the package it
is in is relevant to lenny or not.

Is it possible to use pvmove on clvm in lenny with stock packages?

-- System Information:
Debian Release: 5.0.4
   APT prefers stable
   APT policy: (500, 'stable')
Architecture: amd64 (x86_64)

Kernel: Linux 2.6.26-2-xen-amd64 (SMP w/8 CPU cores)
Locale: LANG=en_GB.UTF-8, LC_CTYPE=en_GB.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/bash

Versions of packages clvm depends on:
ii  cman                 2.20081102-1+lenny1 Red Hat cluster suite - 
cluster ma
ii  libc6                2.7-18lenny2        GNU C Library: Shared libraries
ii  libcman2             2.20081102-1+lenny1 Red Hat cluster suite - 
cluster ma
ii  libdevmapper1.02.1   2:1.02.27-4         The Linux Kernel Device 
Mapper use
ii  libdlm2              2.20081102-1+lenny1 Red Hat cluster suite - 
ii  libreadline5         5.2-3.1             GNU readline and history 
ii  lsb-base             3.2-20              Linux Standard Base 3.2 
init scrip
ii  lvm2                 2.02.39-7           The Linux Logical Volume 

clvm recommends no packages.

clvm suggests no packages.

-- no debconf information

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