LVM of VolGroup00 with LogVol00

[Paul Howarth]

Patrick Nelson wrote:
> FC4 Up to date
> 
> I went to do an Upgrade to FC5 and I don't have enough room on my system 
> (which is a VMware Instance).  So I thought well lets just extend the 
> Logical Volume.  The only problem is that LogVol00 is mounted to /.  My 
> head is sore from trying to find a way to run resize2fs on this LV when 
> it is mounted on /.  Is this even possible?  I guess I could create a 
> new LV in VolGroup00 and mount it to /var, but I started down this road 
> and I'm kinda hoping I can figure it out.
> 
> So far I've done:
> 
> pvcreate /dev/sdb
> vgextend VolGroup00 /dev/sdb
> lvextend -l 267 /dev/VolGroup00/LogVol00 /dev/sdb
> all worked fine, but of course:
> resize2fs /dev/VolGroup00/LogVol00     -  doesn't work because its mounted.
> 
> Any suggestions would be great.  I am working out the /var to a LV thing 
> but...

You can try this:

# ext2online /

However, with a size change as big as that it probably won't be able to 
help you. You'll need to boot from the rescue/install CD to resize the 
filesystem using resize2fs.

Paul.