Bug#513519: Please document that some operations are dangerous on the root device

[Frank Gevaerts]

Package: lvm2
Version: 2.02.39-6
Severity: normal

At least pvmove on the root LV is unsafe and tends to lock up the machine.
This is not documented in the manpage nor in any README file.

I wasn't aware of this limitation until I happened to see http://sources.redhat.com/lvm2/wiki/FrequentlyAskedQuestions, so I previously just thought pvmove to be unreliable.

Please document this somewhere, e.g. in README.Debian



-- System Information:
Debian Release: 5.0
  APT prefers unstable
  APT policy: (500, 'unstable'), (500, 'testing'), (1, 'experimental')
Architecture: amd64 (x86_64)

Kernel: Linux 2.6.28 (SMP w/2 CPU cores)
Locale: LANG=en_US.UTF8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/bash

Versions of packages lvm2 depends on:
ii  libc6                        2.7-18      GNU C Library: Shared libraries
ii  libdevmapper1.02.1           2:1.02.27-4 The Linux Kernel Device Mapper use
ii  libreadline5                 5.2-3.1     GNU readline and history libraries
ii  lsb-base                     3.2-20      Linux Standard Base 3.2 init scrip

Versions of packages lvm2 recommends:
pn  dmsetup                       <none>     (no description available)

lvm2 suggests no packages.

-- no debconf information