[TriLUG] LVM issue - Making /var larger

[Jon Carnes]

I find it easier to drop my box into single user mode (rather than
reboot and adjust it to come up in single user mode).  From a command
line, as the user root, type:
  init 1

BOOM! You'll drop to single user mode and you can then umount /var and
expand it using the LVM.  I've done this many, many times to working
boxes.

In the old days, you would add a drive and bring it up as a partition
/var2, then:
  cp -a /var/ /var2

  ; Drop to single user mode
  init 1
  umount /var
  ; Adjust the /etc/fstab to point /var to the new drive
  vi /etc/fstab
  mount /var
  ; Bring the server back online
  init 3

On a good day, you were down for less than 2 minutes.

Good Luck - Jon Carnes

On Mon, 2003-09-01 at 13:35, Joseph Tate wrote:
> If you boot using a rescue disk, or into linux single user mode, you can 
> run commands on /var without it being mounted.  To do it from grub, just 
> append single to your standard boot configuration.  The var partition is 
> used for such things as your web site, logs, rpm databases as well as 
> data for just about every program.  You can use du -h /var to see what 
> all is there.
> 
> Joseph
> 
> hhuntsberry at fbi.gov wrote:
> 
> >I recently did a fresh installation on my home
> >computer (RH 9).  I used the LVM option during
> >installation and set it up with a 500M /var
> >partition.  I figured this would be large enough.
> > So here is my issue.  I had a problem using rpm
> >and discovered that my /var partition is almost
> >full.  I am not sure why the /var partition is so
> >full.  However, I wanted to increase the size. 
> >But to increase the size, the directions I read
> >said I needed to umount the fs before changing the
> >size.  Well, I know I cannot  umount the /var
> >partition.  So can someone tell me how to increase
> >the size of the LVM /var partition.  Thanks.
> >
> >-Scot
> >
> >  
> >