How to extend a root LVM volume?

I'm trying to extend a root LVM. I'm using LVM2 on FC2. Here is what I've tried:

I ran lvextend when the system was booted normally and the volumes were mounted. This worked as expected and lvdisplay properly shows the new larger size.

Then I booted into the FC2 rescue CD and instructed it to NOT search for and mount Fedora installations. I then ran:

# resize2fs /dev/Volume00/LogVol00
I don't have the specific error, but it basically says that the specified volume doesn't exist.  Indeed if I look in /dev, my volume group and volumes are nowhere to be found.

At that point I tried:

# lvm
lvm> vgscan
After only about 1 second, it responds that no volumes are found.

I also tried rebooting from the CD and letting it mount my installations. In this case, the volume and volume groups are properly discovered and mounted. However, if I try to unmount the volume, it always responds with "device busy".

Is this a problem with how the FC2 rescue disk scans for volumes? Any help would be appreciated.

I am guessing that rescue CD has a restrictive filter setup which prevents vgscan from seeing the drives.

Regards,
Heinz    -- The LVM Guy --

*** Software bugs are stupid.
    Nevertheless it needs not so stupid people to solve them ***

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Heinz Mauelshagen                                 Red Hat GmbH
Consulting Development Engineer                   Am Sonnenhang 11
                                                  56242 Marienrachdorf
                                                  Germany
[email protected]                            +49 2626 141200
                                                       FAX 924446
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