This is a discussion on Grub Read Error and Linux Ghosting - Questions ; Greetings, I am trying to ghost a RedHat 9 build to create multiple identical machines and have run into a snag that I can't seem to figure out. I've searched the groups but haven't figured out so far what I'm ...
I am trying to ghost a RedHat 9 build to create multiple identical
machines and have run into a snag that I can't seem to figure out.
I've searched the groups but haven't figured out so far what I'm
missing. I'll outline what I've done with success and where I'm having
I've managed to successfully create an image of the source RH9 disk
using Symantec Ghost 7.0. I have three partitions (boot, root and
swap) and image all together. I do not use the -ial switch and just
use the defaults.
I've managed to load the image to various machines with various size
disks with no problem. In the case of loading to a smaller disk each
partition is just created with a smaller size in proportion to the
size of the original partitions.
Once the image is loaded I boot with the RH9 cd and launch a shell
with the linux rescue command and prep the disk for booting as
-fsck.ext3 /dev/hda1 -> Superblock has a bad ext3 journal (inode 8).
-fsck.ext3 /dev/hda2 -> Superblock has a bad ext3 journal (inode 8).
-tune2fs -j /dev/hda1 (change back to ext3)
-tune2fs -j /dev/hda2 (change back to ext3)
At this point I need to install GRUB to the MBR so that the system
will boot. The two methods I've used are as follows.
-mount /dev/hda2 /mnt/sysimage
Either command completes successfully.
These procedures have resulted in success in the following situations.
-Loading to an identical machine
-Loading to a machine that is different in many ways except for the
harddrive size. I believe this works because I have compiled an i386
kernel that will support various cpus and I use kudzu which recognizes
the differences in hardware and and allows me to remove the old config
and add new config.
The above procedures seem to fail when I try to load to a smaller
disk. They don't fail entirely, but I have a problem with the GRUB
install. The partitions load correctly (as I am able to run the fsck
and the tune2fs commands). I am also able to boot the machine manually
with a GRUB floppy using the following commands from the grub prompt.
kernel /vmlinuz-2.4.20-8custom ro root=LABEL=/
However, when I try to boot the machine without a floppy or CD I get
the following error.
GRUB Read Error
Because I can boot the machine with the GRUB floppy it's my thought
that the image load worked correctly, I have just done something wrong
with the GRUB install to the MBR. As this works with various machines
with the same size harddrive and fails on various machines with a
smaller drive I'm assuming that my problem lies in the differences in
If anyone has any information regarding the GRUB Read Error I would
greatly appreciate it. I apologize for the long post but figured it
would be best if I provided as much background information as
possible. Also, hopefully it will be a good reference for anyone
wishing to clone linux machines using ghost.