Increase size of LVM on FC6 VMware image

[simpleton]

Ok, I'm a little lost here.

I have a vmware image of "Fedora Core 6" running on my windows xp host. I increased the allocated disk size using vmware. Now I have to find a way to add the new space into my LVM. My new space is recognized as /dev/sda3 and I changed the type to "8e" (aka: LVM).

I apparently have 2 Logical Volumes: "LogVol00" and "LogVol01" in my Volume Group: "VolGroup00". When i checked /etc/fstab I found that "LogVol00" was "/" and "ext3"... and that "LogVol01" was "swap".

So I figure, i just have to extend my /dev/VolGroup00/LogVol00 using my newly created space on the vmware image.

I've done some serious reading, and I know I have to use the pvcreate, vgextend, and lvextend commands, but I am very unsure of what parameters to use and how.

How do I use these commands, what should I do from here?

[likwid]

It's pretty easy. You've already created the physical volume correct? So now in the lvm console do

vgextend VolGroup00 /dev/sda3

Now that sda3 is in the volgroup you need to extend the logical volume to it. You have to give lvextend an option for size, I use the -l option to specify in physical extents because it makes life a lot easier. To see the PE's you have left, run

vgdisplay -v VolGroup00

Note the Free PE line and then run

lvextend -l xxxx /dev/VolGroup00/LogVol00

Where xxxx is the number of free pe's you have. Then at a regular command line run

resize2fs /dev/VolGroup00/LogVol00

I've only had to resize a couple times, it was really easy.

[simpleton]

Great! Doesn't look hard at all. Thanks for the info.

I haven't used pvcreate yet, I just started the partition with "gparted"... left the type as "unknown", and set the flag as "8e".

Also, (serious newbie question): How do I open an "lvm console"?

[likwid]

If you have set it to 8e, then you need to do

pvcreate /dev/sda3

in lvm before all those other steps. To get into the interactive lvm console, just type

 lvm

at the command line.

[simpleton]

Wow, that worked beautifully!
Thanks so much!!

I think I kept screwing it up before, because I was trying to run the commands outside of the lvm console.