Using LVM partitions
Joseph M Dupre (AVAB Inc.)
dupre at avab.com
Thu Jun 30 16:43:17 PDT 2005
I'm trying to boot up to my new LFS 6.0 partition which is a LVM
logical volume, but I am getting this:
device-mapper: 4.1.0-ioctl (2003-12-10 initialised: dm at uk.sistina.com
VFS: Cannot open root device "VolGroup00/LFS" or unknown-block(0,0)
Please append a correct "root=" boot option
Kernel panic: VFS: Unable to mount root fs on unknown-block(0,0)
Grub and the lfskernel are currently running from the host's non-LVM
ext3 boot partition, *not* LFS's /boot directory. You can see that
the LVM support (device-mapper) is compiled into the kernel.
My (snipped) entry in grub is:
target Fedora Core 3
kernel /vmlinuz-2.6.9-1.667smp ro root=/dev/VolGroup00/LogVol00 rhgb
target LFS 6.0
kernel /lfskernel-220.127.116.11 root=/dev/VolGroup00/LFS
Does anyone know more about LVM that could tell me why the host
fedora boot up can find the logical volumes but the LFS boot can't?
Note: I did NOT install the LVM tools into the LFS system, as I can
manage LVM from the main host configuration at this point.
More information about the lfs-support