Grub Issue With 2005.0

**icerogue** · 04-26-2005

Ok I was helping my friend do a stage 3 on his athlon xp, all going good till we came to dealing with Grub.
First off here is the Partition Table

Code:

sda1 /boot ext2
sda2 swap
sda3 /  reiserfs

And the grub.conf

Code:

default 0
timeout 30
splashimage=&#40;hd0,0&#41;/grub/splash.xpm.gz

title=Gentoo
root &#40;hd0,0&#41;
kernel /kernel-2.6.11-gentoo-r6 root=/dev/sda2

And Finally the error output on boot (after selecting in grub menu)

Code:

VFS&#58; Cannot open root device "sda2" or unknown_block &#40;0,0&#41;
Please append a correct "root=" boot option
Kernel panic - not syncing&#58; VFS&#58; Unable to mount roof fs on unknown_block &#40;0,0&#41;

All the data posted to the screen before these three lines appears normal in my experiance.
We built our own kernel and i made sure that all the appropiate file systems were supported. The only thing i can figure is that it isnt accepting /dev/sda2 as root.
Any ideas or pointers would be much appeciated.

**budman7** · 04-26-2005

sda3 / reiserfs
root=/dev/sda2

If you straighten these out it should help.

Or is this a typo?

**drakebasher** · 04-26-2005

According to your partition table, sda2 is a swap partition and sda3 is reiserfs, which appears to be where your root ( / ) is. In that case, in the 'kernel' line in grub, "root=/dev/sda2" should be changed to "root=/dev/sda3".

**icerogue** · 04-26-2005

Sorry about that that was a typo on my part, shows you not to post when almost asleep.
The Real Partition table is:

Code:

sda1    /boot   reiserfs
sda2   /            reiserfs
sda3   swap

Sorry About That

**budman7** · 04-27-2005

Your /boot is that ext2 or reiserfs?
It needs to be ext2.
Another typo?

**jaboua** · 04-27-2005

Originally Posted by budman7

Your /boot is that ext2 or reiserfs?
It needs to be ext2.

I have a ext3-boot... And in my fstab, there is a comment telling you to add the notail option to the boot-partition if it's reiserfs, so I think you can use reiser as boot...

**budman7** · 04-27-2005

Originally Posted by jaboua

Originally Posted by budman7

Your /boot is that ext2 or reiserfs?
It needs to be ext2.

I have a ext3-boot... And in my fstab, there is a comment telling you to add the notail option to the boot-partition if it's reiserfs, so I think you can use reiser as boot...

I could of swore I read that it had to be ext2, and that you had to do something special for ext3. But, whatever, time to move to the problem.
If it is reiserfs, do you have that notail option in /etc/fstab?

**icerogue** · 04-27-2005

Sorry about this again, /boot is ext2 i switched it after we started having issues, although i think i forgot to switch it in the fstab. How much of an issue would that be?

**jaboua** · 04-27-2005

How much issue? The partition won't get mounted and the kernel can't be loaded, resulting in linux not booting.

**sdousley** · 04-28-2005

Originally Posted by jaboua

How much issue? The partition won't get mounted and the kernel can't be loaded, resulting in linux not booting.

Though a simple boot off a Live cd, edit the fstab to be correct, and reboot will be sufficient to solve the problem.

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