I installed a new ide disk. I used system-config-lvm to create a new lvm.
Then mounted it, did cp -ax / /mnt/7200rpm. I can mount the drive fine,
but I can't seem to switch root.
I edited /etc/fstab on the new drive to say:
/dev/7200rpm/LogVol02 / ext3 defaults 1 1
I added this to grub:
title Fedora Core (2.6.15-1.1948_FC5)
root (hd0,2)
kernel /vmlinuz-2.6.15-1.1948_FC5 ro root=/dev/VolGroup00/LogVol00
rhgb quiet
initrd /initrd-2.6.15-1.1948_FC5.img <<new entry
title Fedora Core (2.6.15-1.1948_FC5)#2
root (hd0,2)
kernel /vmlinuz-2.6.15-1.1948_FC5 ro root=/dev/7200rpm/LogVol02 rhgb
quiet
initrd /initrd-2.6.15-1.1948_FC5.img
Just for test I did NOT change /boot, it still is the /dev/hda3 (hd0,2)
I even reran grub-install --rescan /dev/hda
When I try to boot entry#2, I see:
Creating root device
Mounting root filesystem
mount: could not find filesystem /dev/root
panic
I also notice that when booting the old root (entry#1), when doing lvm scan
it detects both VolGroup00 and 7200rpm, but only says 2 groups now active
on VolGroup00, nothing about 7200rpm.
lvm> pvscan -v
Wiping cache of LVM-capable devices
Wiping internal VG cache
Walking through all physical volumes
PV /dev/hdb4 VG 7200rpm lvm2 [55.50 GB / 0 free]
PV /dev/hda5 VG VolGroup00 lvm2 [55.56 GB / 32.00 MB free]
PV /dev/hdb3 lvm2 [196.11 MB]
Total: 3 [111.26 GB] / in use: 2 [111.07 GB] / in no VG: 1 [196.11 MB]
lvm> lvscan -v
Finding all logical volumes
ACTIVE '/dev/7200rpm/LogVol03' [2.00 GB] inherit
ACTIVE '/dev/7200rpm/LogVol02' [53.50 GB] inherit
ACTIVE '/dev/VolGroup00/LogVol00' [53.59 GB] inherit
ACTIVE '/dev/VolGroup00/LogVol01' [1.94 GB] inherit
lvm> vgscan -v
Wiping cache of LVM-capable devices
Wiping internal VG cache
Reading all physical volumes. This may take a while...
Finding all volume groups
Finding volume group "7200rpm"
Found volume group "7200rpm" using metadata type lvm2
Finding volume group "VolGroup00"
Found volume group "VolGroup00" using metadata type lvm2
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