Resizing LVM Revisited

Hi All,

to resize a LV in CentOS4.0, I had to use the 1st install CD and Linux Rescue. I then had to umount /mnt/sysimage/dev, /mnt/sysimage/proc, /mnt/sysimage/boot, /mnt/sysimage/sys before I could umount /mnt/sysimage. After doing this, I lose the commands, vgscan, lvscan and resize2fs. Why is this, and how can I get around it.? Cheers.

Mark Sargent.

Hello,

It sounds like rescue mode doesn't come with its own copy of the lvm and ext2 commands, which I find odd. Did you chroot /mnt/sysimage? If so don't do that, in fact there should be an option when you are booting into rescue mode where you can tell it to skip finding/mounting your OS. Try that and see if you have your commands. If not, I know that the Fedora rescue disk has these commands, and rescue mode is rescue mode so it still should work, just burn the first FC4 cd and use that rescue mode. Thank you,

Josef

Josef Whiter, RHCE
Global Support Services
Red Hat, Inc.
919-754-3700 x44429

Hi All,

Josef, what version of Fedora's Rescue CD were you using.? I tried this with Fedora3's Rescue CD, but, those commands were non-existent when choosing skip and going straight to the shell. Cheers.

Mark Sargent.

For 2.4 kernels (2.4.20 and later) we've always used ReiserFS and had extremely good results with online/hot expansion on top of LVMs. We use ext3 for our static os/boot areas but all of our data areas, and since we're using debian, that's just /var, and maybe /home, reside on LVM + ReiserFS.

--
"Genius might be described as a supreme capacity for getting its possessors into trouble of all kinds."
-- Samuel Butler

Hi All,

whilst not a direct solution to my current situation I'll keep your ideas in mind for future deployment. Cheers.

Mark Sargent.