Re: FC2 -> F7 via yum

On Sun, 2008-05-18 at 19:37 -0500, Mikkel L. Ellertson wrote:
Trever L. Adams wrote:
I am half way around the world from a not-for-profit organizations
server which I help maintain. For too many reasons to list, we could not
install from media and had to do an upgrade via yum. Everything is
working fine, except, the system was using Lilo and now uses Grub.
Additionally, the drive renaming of everything (ATA and SCSI) to sd$
leaves us without being able to reboot.

The drive setup follows (FC2):
/dev/hda3 /
/dev/hda1 /boot
/dev/hdc1 /extra
/dev/sdb1 /AAA
/dev/sda1 /BBB

It appears that ATA is initialized before the SCSI on this system
(2.6.12). Therefore, I think the mapping would be:

hda - > sda
hdb (cdrom?) - > sdb
hdc -> sdc
sda -> sdd
sdb -> sde

Is this accurate? Is there a way to use labels so I can be certain grub
and fstab are correct?


Thank you for any help.

Trever Adams

P.S. Am I even having to do this, does 2.6.23 (in F7) have this
remapping requirement? It has been a while since I used it locally.


Grub uses the BIOS mapping, so the BIOS boot drive will be hd0 for
Grub. As far as the drive mapping, the CD-ROM will not have show up
as a SCSI hard drive. It will show up as a SCSI CD-ROM drive. (scd0)

You can use partition labels in /etc/fstab, and in the kernel
command lines in grub.conf, but Grub itself does not understand them.

LABEL=/boot /boot ext3 defaults 1 2
----
I would also mention that you don't have to list CD-ROM drives
in /etc/fstab because they would likely automatically mount discs in
user space but on a remote headless system, user space is likely not
useful. Fedora hasn't set up CD/DVD drives in /etc/fstab by default for
several versions now.

As long as you get /dev/sda1 (/boot) and /dev/sda3 (/) working on
reboot, the rest is fixable after booting.

Craig

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