Replacing hda with larger drive

[pshepherd]

I am running FC6 on a machine with 3 hard disks and I am intending to replace hda with a larger device and want to check that I am doing it the right way.

LVM is installed as follows:

hda1 /boot
hda2 VG00 split into LV00 which is / and LV01 is swap
hdb + hdd1 VG01 set up as LV02 and mounted as /usr/data

I think this is all pretty standard. All 4 IDE drive slots are in use (3 x hd + 1 cd/dvd).

From what I read in the LVM how-to, this forum etc, I propose to:

1) unmount /usr/data

2) power off, disconnect the cables to hdb and hdd, connect new drive as hdb, then power on

3) dd if=/dev/hda of=/dev/hdb

4) fdisk /dev/hdb to create a new partition in the remaining space

5) power off, replace old hda with new one, reconnect hdb and hdd, power on

6) mount /usr/data and the new partition

Is this going to work ? TIA

Paul

[lmo]

1) make sure fstab does not try to mount /usr/data by specifying noauto. Also make sure field 6 is a 0 so that it won't hang up trying to fsck something that won't be there.Here is what one of mine looks like:
/dev/hdg3 /data2 ext3 defaults,noauto 0 0

2) All partitions on resulting hdb will be exact same sizes as hda with unallocated space at the end.

That is what it looks like to me. However, I know nothing of LVM since I'm not using it and never plan to.

[A.Serbinski]

Forget about unmounting anything.
The easiest way to do this operation is to download the FC6 livecd. Boot off that with both the original and the new disk attached to the system, then dd if=/dev/origina of=/dev/new

You can now get rid of the original disk as the new one has a copy of everything. Only thing is that your partitions will be exactly the same size as the originals and you will have a bunch of free space.

LVM can be resized to fill the whole disk, or even to span a partition across multiple disks. If you really want to, you can just add the new disk, expand the volume into the new disk, and use the combined size. Either way, you need to mess with LVM.

Read this; http://fedoranews.org/mediawiki/inde...tions_with_LVM