[CentOS] LiveCD System recovery - Mounting LVM?

Tue Jan 11 20:46:10 UTC 2011
Lamar Owen <lowen at pari.edu>

On Tuesday, January 11, 2011 01:47:54 pm Kwan Lowe wrote:
> Also note that in some cases the lvm tools must be called by
> specifying lvm before the command
> lvm pvscan
> lvm vgchange -ay VolGroup00

To have in the archive, note that this is the case in the dracut shell (accessed at boot on error if the RDSHELL argument is passed) that should be in C6 (as it's in F12 and later).  Having the RDSHELL boot argument is very nice, as if you get error during boot that won't even allow single user mode (things like can't find root device, or a module failed to load, etc) you can get a rudimentary shell in the initial ramdisk environment.

See http://fedoraproject.org/wiki/How_to_debug_Dracut_problems for a lot more info.

Having said that, I've not tried on a live EL6 system as yet, so YMMV, of course.