Hi Paul,
Paul Howarth schrieb:
My thoughts were first to remove /dev/hdb, create two partitions, moving /boot and VG to it, power down, remove old disk, jumper new one as master and finally power up.
How do I copy the MBR?
You could do it using dd, or you could just use grub-install to put grub on hdb.
Can anybody give me some advice?
Sounds like a reasonable plan. Please post the output of:
# vgdisplay -v
# vgdisplay -v Finding all volume groups Finding volume group "VolGroup00" --- Volume group --- VG Name VolGroup00 System ID Format lvm2 Metadata Areas 2 Metadata Sequence No 3 VG Access read/write VG Status resizable MAX LV 0 Cur LV 2 Open LV 2 Max PV 0 Cur PV 2 Act PV 2 VG Size 75,47 GB PE Size 32,00 MB Total PE 2415 Alloc PE / Size 2413 / 75,41 GB Free PE / Size 2 / 64,00 MB VG UUID Scg1fw-WM5q-eoj5-rcf8-AAAi-sKmV-nrWAYK
--- Logical volume --- LV Name /dev/VolGroup00/LogVol00 VG Name VolGroup00 LV UUID c3JfzP-cN3w-v49v-nXYN-whIc-b5A2-f7KMzx LV Write Access read/write LV Status available # open 1 LV Size 74,41 GB Current LE 2381 Segments 2 Allocation inherit Read ahead sectors 0 Block device 253:0
--- Logical volume --- LV Name /dev/VolGroup00/LogVol01 VG Name VolGroup00 LV UUID K6Tqyu-jO0S-BpPC-8ob7-t7Qd-SOQ1-aK6EUY LV Write Access read/write LV Status available # open 1 LV Size 1,00 GB Current LE 32 Segments 1 Allocation inherit Read ahead sectors 0 Block device 253:1
--- Physical volumes --- PV Name /dev/hda2 PV UUID EpsJjV-7Svg-cMVX-sjdF-lMXQ-ruCB-9bzrXP PV Status allocatable Total PE / Free PE 1189 / 0
PV Name /dev/hdb1 PV UUID 0bUeIv-uudT-MadJ-WDpU-yMD0-4P4n-Suitsd PV Status allocatable Total PE / Free PE 1226 / 2
This is going to be a bit painful unfortunately, since you're using most of the space in the volume group.
/dev/VolGroup00/LogVol01 is, I guess, set up for swap?
To free up space, you'll need to reduce the size of /dev/VolGroup00/LogVol00 so that both it and /dev/VolGroup00/LogVol01 can fit on hda2. Let's say that's 30G.
The first step is to resize the / partition. You'll need to boot from the rescue CD to do that so that / won't be mounted. Once booted, use resize2fs to shrink /dev/VolGroup00/LogVol00 to 30G (this will take a while). You can then use lvreduce to shrink the size of /dev/VolGroup00/LogVol00; use a size larger than 30G (e.g. 32G) so that you can be sure that the filesystem isn't truncated.
You can then boot back into Fedora, in which "df" should show the reduced size of the partition. You can then use pvmove to move everything off /dev/hdb1 onto /dev/hda2, and then vgreduce to remove /dev/hdb1 from the volume group. At that point you can then repartition hdb, add a new LVM physical volume into your volume group (vgextend), use pvmove to move all the data to hdb, and vgreduce to remove hda2 from the volume group. You can also use ext2online to bring the /dev/VolGroup00/LogVol00 filesystem up to the full size of the volume it's on so that no space is wasted.
Of course you still need to move /boot and install grub on hdb.
Paul.
