[rhn-users] manipulating linux partitions
Paul A. Kennedy
pakenned at beckman.uiuc.edu
Tue Aug 24 17:34:05 UTC 2004
On Tue, Aug 24, 2004 at 10:16:15AM -0600, Mike Tran wrote:
> I have redhat enterprise WS installed on my computer partitioned as
> shown below. How do i manipulate partitions and resize them? Example,
> how do i reduce /usr and expand /var. Thanks in advance for any inputs.
>
> Filesystem Size Used Avail Use% Mounted on
> /dev/hda7 1012M 275M 686M 29% /
> none 0 0 0 - /proc
> none 0 0 0 - /dev/pts
> usbdevfs 0 0 0 - /proc/bus/usb
> /dev/hda1 1012M 38M 923M 4% /boot
> /dev/hda2 20G 1.4G 17G 8% /home
> none 503M 0 503M 0% /dev/shm
> /dev/hda3 2.0G 61M 1.9G 4% /tmp
> /dev/hda8 48G 2.5G 43G 6% /usr
> /dev/hda6 1012M 313M 648M 33% /var
>
> System Info:
> redhat-release-3WS-7.2
> Linux 2.4.21-15.EL i386 GNU/Linux
>
You are going to have to do this the hard way (as someone else has already
posted) with potentially a partition editor or getting another disk and
starting again. The cost of a new hard disk certainly makes that an attractive
choice.
However, to get freedom of resizing partitions in a fairly painless way, you
could look at setting up LVM (Logical Volume Manager). You will most likely
want to get a new disk and set up LVM on that disk and then transfer things
over.
As with any solution, make sure you know what is necessary for disaster
recovery (with LVM, remember your metadata backups should be accessible
_outside_ your LVM, whether this is a small non-LVM partition or on backup
media).
Hope this helps,
Paul
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