Subject: Re: Trying to convert a LVM partition to non-LVM
I've never gone from LVM to native disk, but are you sure you have
copied your MBR to the new disk?
On 1 March 2010 11:18, Styma, Robert E (Robert)
<robert.styma(a)alcatel-lucent.com> wrote:
> I was working on a linux box which had a failing disk over
> the weekend. It still booted, but flagged smartd errors
> and had a couple of damaged files which were fortunately
> replaceable (eclipse install tgz).
>
> I booted Spinrite to make the drive readable and then planned
> to use system rescue CD and gparted to copy to an identical
> drive. Unfortunately, the machine used the default boot
> partition (ext3) and LVM for the root and swap partitions.
> gpartd cannot currently deal with LVM partitions. This is
> too bad as it is a great tool.
>
> I initially tried laying out the partitions without LVM and
> tar copying the root partition over. The /boot partition had
> gone across with gpartd. I changed the grub.conf file and
> the /etc/fstab file and even the /etc/mtab file. In each
> case, the system would start to boot and then the kernel would
> panic looking for the logical volumes.
>
> In the end, I just laid out the partitions to match the original
> drive and dd'ed both physical partitions to the new drive and it
> worked.
>
> My question becomes, "What file(s) other than fstab and grub.conf
> need to change to change the root parttion from an LVM parition
> to a normal ext partition such as sda2?"
>
> I feel like I am close, but no cigar
>
> Bob Styma
I forgot to mention that I used the grub command from system rescue CD
to fix up the mbr after I put the new drive in the machine by itself:
grub
...
root (hd0,0)
setup (hd0)
It is possible that I needed to also setup the partition boot record.
with
setup (hd0,0)