On Sat, Apr 05, 2008 at 02:14:17PM -0500, Butch Kemper wrote: > Back in February, I asked a question about problems I was having with > the hard disks sequence flip-flopping when I would boot: disk #1 would be > hda and disk #2 would be hdc; or disk #1 would be hde and disk #2 would > be hda. > > I receive answers about using labels with the partitions so, I labeled > the partitions and updated /etc/fstab. This is how things now look: > > IDE #1 Partition Label Mount Point > 1 / / > 2 swap1 swap file > 3 /usr /usr > 4 > 5 /usr/local /usr/local > 6 /var /var > > IDE #2 Partition Label Mount Point > 1 /var/poptemp /var/poptemp > 2 /var/mail /var/mail > > The /etc/fstab: > > # <file system> <mount point> <type> <options> <dump> <pass> > proc /proc proc defaults 0 0 > LABEL=/ / ext3 defaults,errors=remount-ro 0 1 > LABEL=/usr /usr ext3 defaults 0 2 > LABEL=/usr/local /usr/local ext3 defaults 0 2 > LABEL=/var /var ext3 defaults 0 2 > LABEL=/var/poptemp /var/poptemp ext3 defaults 0 2 > LABEL=/var/mail /var/mail ext3 defaults 0 2 > LABEL=swap1 none swap sw 0 0 > > Now the partitions and mount points get assigned correctly no matter > which order the drives are assigned. > > The remaining problem is with the GRUB and the kernel. It was suggested > that a LABEL specification be placed in the /boot/grub/menu.1st entry so > that: > > # kopt=root=/dev/hda1 becomes > # kopt=root=LABEL=/ did you do an update-initramfs to build a new initrd ?
>
> Using a LABEL in the Grub menu does not work because the kernel get confused:
>
> 1. If kopt=root=/dev/hda1 and the disk order changes to make
> the boot disk be /dev/hde, the boot process stops and drops
> into a prompt. I can unmount /boot, mount /boot on the
> correct drive, give a CTL-D to the prompt, and the system
> would continue to boot.
>
> 2. If kopt=root=LABEL=/, the boot process will stop and drop
> into a prompt WITHOUT /boot being mounted. I can mount
> /boot on the correct drive, give a CTL-D to the prompt,
> and the system will continue to boot.
>
> No where have I been able to find any documentation that shows that the
> Kernel boot command root= can have a LABEL specified.
>
> So, how do I make the kernel consistently detect and assign the disks in
> the correct order? Someone suggested the problem lies with UDEV and the
> parallel hardware detection process.
>
> Thanks for any suggestions.
>
> Butch
>
>
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--
birth, n:
The first and direst of all disasters.
-- Ambrose Bierce, "The Devil's Dictionary"
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