[CentOS] is it possible to resive /var online?

[Brendan Minish]

On Sun, 2010-05-02 at 23:01 +0200, Rudi Ahlers wrote:

--snip-- 
 
> Has anyone done anything like this before, with success? i.e. do you
> have a working procedure / script to share with me? I won't be able to
> test the process, if it fails then I'm stuck 

yes, on line, with no issues on centos 5.4

just tested it again in a virtual machine, with no issues 
 
root at dhcp-204 ~]# df -h
Filesystem            Size  Used Avail Use% Mounted on
/dev/mapper/VolGroup00-LogVol00
                      3.7G  1.3G  2.3G  37% /
/dev/mapper/VolGroup00-LogVol02
                      961M   43M  870M   5% /var
/dev/hda1              99M   13M   82M  14% /boot
tmpfs                 250M     0  250M   0% /dev/shm
[root at dhcp-204 ~]# lvextend -L +1G /dev/VolGroup00/LogVol02 
  Extending logical volume LogVol02 to 1.97 GB
  Logical volume LogVol02 successfully resized
[root at dhcp-204 ~]# df -h
Filesystem            Size  Used Avail Use% Mounted on
/dev/mapper/VolGroup00-LogVol00
                      3.7G  1.3G  2.3G  37% /
/dev/mapper/VolGroup00-LogVol02
                      961M   43M  870M   5% /var
/dev/hda1              99M   13M   82M  14% /boot
tmpfs                 250M     0  250M   0% /dev/shm
[root at dhcp-204 ~]# resize2fs /dev/VolGroup00/LogVol02 
resize2fs 1.39 (29-May-2006)
Filesystem at /dev/VolGroup00/LogVol02 is mounted on /var; on-line resizing required
Performing an on-line resize of /dev/VolGroup00/LogVol02 to 516096 (4k) blocks.
The filesystem on /dev/VolGroup00/LogVol02 is now 516096 blocks long.

[root at dhcp-204 ~]# df -h
Filesystem            Size  Used Avail Use% Mounted on
/dev/mapper/VolGroup00-LogVol00
                      3.7G  1.3G  2.3G  37% /
/dev/mapper/VolGroup00-LogVol02
                      2.0G   43M  1.8G   3% /var
/dev/hda1              99M   13M   82M  14% /boot
tmpfs                 250M     0  250M   0% /dev/shm
[root at dhcp-204 ~]#