LFS: Cannot boot : Need initrd image?

michealoc · 10-11-2007, 07:53 AM

Hello there,

Problem: Cannot boot new LFS.

I have just rebuilt the LFS 6.3
With chroot to $LFS I can run the sanity checks using dummy.c as per section 6.10 Re-adjusting the Toolchain. All ok.
Linux 2.6.22.5
gcc 4.1.1 [not the 4.1.2 in LFS book 6.3]

The Hard drive partitions are as follows:

Code:

#df
Filesystem    1K-blocks   Used 	  Available   Use% Mounted on
/dev/mapper/VolGroup00-LogVol00
              99698064 	  2477316 92074536    3%     /
/dev/hda1     101086   	  16096   79771       17%    /boot
tmpfs         960000      0       960000      0%     /dev/shm
/dev/mapper/VolGroup00-LogVol02
              24789644    1485968 22024088    7%     /opt
/dev/mapper/VolGroup00-LogVol03
              24821628    176300  23364100    1%     /tmp
/dev/mapper/VolGroup00-LogVol02
             24789644     1485968 22024088    7%     /mnt/lfs

From grub prompt:

Code:

grub> find /grub/stage1 
(hd0,0)

Grub is already installed on MBR (hd0) so I didn't run "setup (hd0)"
I just edited the existing grub file. Not sure about this.
In Section 8.4 the grub configuration is set up from LFS without an initrd image.

Code:

title LFS 6.3
     root (hd0,0)
     kernel /opt/boot/lfskernel-2.6.22.5 root=/dev/VolGroup00/LogVol02 pci=nommconf

title Red Hat Enterprise Linux Server (2.6.18-8.el5)
        root (hd0,0)
        kernel /vmlinuz-2.6.18-8.el5 root=/dev/VolGroup00/LogVol00 pci=nommconf rhgb quiet crashkernel=128M@16M
        initrd /initrd-2.6.18-8.el5.img

I tried the above kernel line with and without "/opt" in the boot fails with the following message:

Code:

  Booting 'LFS 6.3'

root (hd0,0)
 Filesystem type is ext2fs, partitiion type 0x83
kernel [/opt]/boot/lfskernel-2.6.22.5 root=/dev/VolGroup00/LogVol02 pci=nommconf 

Error 15: File not found

I cannot figure out how to boot to the newly built LFS.
Dose the standalone entry in the grub file "root (hd0,0)" dictate that there must be a kernel at that exact location, i.e. not a sub directory of (hd0,0)= hda1?
If so do I need to copy the new LFS kernel file to the old /boot folder?
Dose the "root=/dev/VolGroup00/LogVol02" effectively chroot to that location?
Dose the boot need an initrd image when booting in with LVM partitions?
How can I create the correct initrd image for 2.6.22.5?

In a nutshell, everything is built, any idea how I can boot it?

Thanks,
M.