Re: Resizing an LVM

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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@xxxxxxxxxxxxxxxxx> 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@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@xxxxxxxxxxxxxxxxx>
      '                              < http://www.georgeanelson.com/>

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