Hi there.
I want to install a second drive (with data and SO RH 8) in my linux RH 9, and when I try to do so, I have problems at boot time. Of course I set the second drive like a slave disk, and I also try to install the 2nd disk in the 2nd IDE channel. But is still not working.
Here are some of the errors that appear on screen:
Activating swap partitions: swapon /dev/hda9: No such drive (there is no 9 on hda, only on the 2nd drive)
after fsck.jfs I can see:
The current device is /dev/hda10 (there is no 10 on hda!!!)
Superblock is corrupt and cannot be repaired because both primary and secondary copies are corrupt
FSCK CANNOT CONTINUE
***An error ocurred during the file system check
***Dropping you to a shell; the system will reboot
***when you leave the shell

On the shell I executed mount command and I saw that / points to /dev/hdd8 (my 2nd drive)

FSTAB was like this:
LABEL=/ /
LABEL=/boot /boot
but I changed to:
/dev/hda2/ /
/dev/hda1/ /
following a paper encountered in Internet.
Do you tell me what is going on?
Thanks.
Tito

Print your output of your whole /etc/fstab.

If the second drive is on the second IDE channel, then it will be hdc or hdd.

Primary master = hda
primary slave = hdb
secondary master = hdc
secondary slave = hdd

Undo your fstab changes, reboot, and you should be back to where you were before. The second drive will not be mounted, so manually do that, verify that you can read it, etc, and then modify your fstab. -- J.W.

This is the original FSTAB. Whit only 1 disk it is working fine. This is not working with 2 disks.

LABEL=/ / ext3 defaults 1 1
LABEL=/boot /boot ext3 defaults 1 2
none /dev/pts devpts gid=5,mode=620 0 0
none /proc proc defaults 0 0
none /dev/shm tmpfs defaults 0 0
/dev/hda3 swap swap defaults 0 0

And I modified it, like this:

/dev/hda2 / ext3 defaults 1 1
/dev/hda1 /boot ext3 defaults 1 2
none /dev/pts devpts gid=5,mode=620 0 0
none /proc proc defaults 0 0
none /dev/shm tmpfs defaults 0 0
/dev/hda3 swap swap defaults 0 0

With 1 disk, it is Ok, but there are problems when I connect the 2nd disk.
(2nd disk has a booteable Linux too!)

With this changes the error
mount: LABEL=/ duplicated -not mounted
dissapear

Any suggestion?
Thanks a lot
Tito

Redhat uses partition labels for identification, hence the label=/. Consider labels as relative addresses and /dev/ha2 an absolute address. If you move partitions or drives around the OS can always find the labels but not the /dev/hda if it does not remain the same.

So seeing how you have two RHs loaded you now have two partitions with the same label, hence the duplicate label errors.

Your first post eludes that the partitions on the 2nd drive are formatted as jfs but the first is ext3. The superblock errors might be attributed to that fact since the OS expected ext3.

After the fstab change does RH boot ok?

nop
There are less errors than before, but it is not booting well.
Others errors (see my first post) are showing on screen.
Am I clearly enough with my explanation?
Thanks.
Tito

I'm going to take an educated guess hoping others might know more... If the OS was try to fix the hdd8 (jfs?) partition on the 2nd drive as ext3 it might of corrupted the file system. Can you still mount the partitions on the 2nd drive?

I didn't try to mount anything because booting is not finishing correctly.
I can add if I connect only the 1st disk, all is working ok, and if I connect the 2nd disk in its own original PC, everything is ok too.
The problem appears when I try to connect both disks in the same PC.

Post the /etc/grub.conf file. I am trying to remember if there is a root=label line. That might need to be changed to root=/dev/hda2

Bingo!
You were absolutely right!
Thank you very much!!