I am using ClarkConnect, a great all in one firewall/proxy server/file server/SMTP gateway/etc. It uses RedHat I believe. I had a 200GB hard drive in this which I wanted to resize to 500GB. Attempting to do this is deep into undocumented territory. I have spent 2 days on this. I really want to make this work but am close to giving up.


Steps taken so far:
Cloned 200GB disk to 500GB disk.
Installed 500GB drive and verified machine continues to operate.
Booted using a GParted Live CD, then used GParted to create an additional partition in the free space.

Then attempted to resize following the 'The resize test procedure' section in this Red Hat Knowledgebase article .

This is my current state of play:

/dev/hda2 was the existing partition
VolGroup00 was the existing volume group
/dev/VolGroup00/LogVol00 was the existing logical volume

pvscan:
PV /dev/hda2 VG VolGroup00 lvm2 [186.19 GB / 0 free]
PV /dev/hda3 VG VolGroup00 lvm2 [279.44 GB / 0 free]

vgdisplay VolGroup00
VG Name VolGroup00
System ID
Format lvm2
Metadata Areas 2
Metadata Sequence No 5
VG Access read/write
VG Status resizeable
MAX LV 0
Cur LV 2
Open LV 2
Max PV 0
Current PV 2
Act PV 2
VG Size 465.62 GB
PE Size 32.00 MB
Total PE 14900
Alloc PE / Size 14900 / 465.62 GB
Free PE / Size 0 / 0
VG UUID CfXhs4-f9y7-v7ck-CaYB-tIek-HipR-EFNRyt

lvscan:
ACTIVE '/dev/VolGroup00/LogVol00' [185.1 GB] inherit
ACTIVE '/dev/VolGroup00/LogVol01' [280.44 GB] inherit

Attempting to use ext2online results in:

ext2online /dev/VolGroup00/LogVol00
ext2online v.1.1.18 - 2001/03/18 for EXT2FS 0.5b
ext2online: new size is same as current (485455792)

Can anyone provide any assistance on a way forward with this?

Why did you create LogVol01 ???.
Don't you need the space available (in the vg) so you can lvextend LogVol00 ???.
Then do the filesystem ???.

I would also have my doubts that you can do the (filesystem) resize online if it contains the root.

Caveat: I don't use LVM, so treat all the above with caution. I do intend to head that way (LVM2), so these issues are of interest.

I followed the RedHat article, maybe I made a mistake. But now it is impossible to remove the LogVol01.

lvremove /dev/VolGroup00/LogVol01:
Can't remove open logical volume "LogVol01"

vgreduce VolGroup00 /dev/hda3:
Physical volume "/dev/hda3" still in use

The root is contained in /dev/hda1 I believe.

I cannot believe there is so little documentation on LVM. That's the biggest flaw with Open Source software, great products but a disgraceful lack of documentation.

I'll give it a couple more hours of attempts then I'll give up on this and switch to ISA Server.

Perhaps you should search more - start here.

Already been through that article. Again it has gaps.