Resizing an LVM

[Sebastian Gurovich]

What is the best way to backup a file system like that with DVDs?
Later will ask the list.
thanks
-Seb

On 6/3/07, Tony Nelson <tonynelson at georgeanelson.com> wrote:
>
> At 5:37 PM -0400 6/3/07, Robert L Cochran wrote:
> >I have one physical hard drive, a Western Digital 400 Gb which is
> >currently 100% used by Fedora Core 5. It is an LVM volume that looks
> >like this:
> >
> >[rlc at bobcp4 ~]$ df -h
> >Filesystem            Size  Used Avail Use% Mounted on
> >/dev/mapper/VolGroup00-LogVol00
> >                      359G   58G  283G  17% /
> >/dev/sda1              99M   16M   79M  17% /boot
> >/dev/shm             1004M     0 1004M   0% /dev/shm
> >
> >
> >I want to resize and repartition this nondestructively so there are 5
> >partitions. 3 of these will be the /boot, /, and swap partitions and
> >together will total about 119 Gb. The other 2 partitions will each have
> >approximately 119 Gb each. My goal is to put 3 different operating
> >systems on the hard drive.
>
> /boot must be a Basic partition, not LVM.
>
>
> >Here is what I believe I need to do.
> >
> >1. Boot the Fedora 7 DVD in rescue mode.
> >2. Do not mount the file system, instead just go to a shell prompt and
> >3. lvm vgscan
> >
> >Gets the name of the volume group
> >
> >4. lvm vgchange -a y /dev/VolGroup00
> >
> >Activates the volume
> >
> >5. e2fsck -f /dev/VolGroup00/LogVol00
> >
> >Checks file system for errors
> >
> >6. resize2fs /dev/VolGroup00/LogVol00 119G
> >
> >shrinks the file system down to 119 Gb
> >
> >7. fdisk
> >
> >shrinks size of partition
> >
> >8. lvresize -L -238G /dev/VolGroup00/LogVol00
> >
> >Then reboot without the rescue CD and I should still be able to boot
> >Fedora Core 5 but the disk will have 238G of unpartitioned free space.
> >Does this sequence seem correct?
>
> I think so.  You should do a backup first.  It will only take about 20 or
> so DVDs.
>
>
> >Thanks for any help you can offer!
> --
> ____________________________________________________________________
> TonyN.:'                       <mailto:tonynelson at georgeanelson.com>
>       '                              <http://www.georgeanelson.com/>
>
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