Mounting LVM root disk from rescue disk boot
Paul Howarth
paul at city-fan.org
Fri Apr 15 15:36:34 UTC 2005
Dave Atkinson wrote:
> Hi Fedora world,
>
> Can anyone help with this? I have tried a little googling, with no
> success...
>
> Having just installed FC3 x86_64 on my new Athlon 64 box, I decided it
> would be nice to have i386 installed to deal with a few of the 'issues'
> I've encountered. So I need to shrink the root partition, which I let
> the install routine create on an LVM partition spanning all available
> space on the hard disk (there is only one). So, I know how to use LVM
> and e2fs tools to resize the partition, but I obviously need to have the
> partition unmounted. Now, when the system is booted normally, it tells
> me that the root partition is /dev/mapper/VolGroup00-LogVol00. If I
> boot the Rescue CD and skip mounting my root partition (in order to
> resize it) and I type
>
> resize2fs /dev/mapper/VolGroup00-LogVol00 40000
>
> I get something like "file not found" which I presume relates to the
> above device file, which indeed does not exist. I tried
>
> resize2fs /dev/VolGroup00/LogVol00 and got a similar error.
>
> Can anyone shed some light on this? The only articles I've found on
> 't'net deal with volumes other than one's root partition...
Try running "vgcan -v --mknodes" and see if that helps.
Paul.
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