Root block not found, GRUB-boot error.

DreamHawk · n00b Joined: 14 Aug 2006 Posts: 31

Hello.

When i start my gentoo after installed grub, i get that error that says that root block/device was not found.

Now i wonder, where in the installation have i done wrong?

Please help.

nixnut · Posted: Sat Aug 26, 2006 8:23 pm Post subject:

Make sure you included the driver for your sata controller and for the filesystem on your root partition. And make sure you specified the right partition as your root partition in grub.conf.
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dahranis · Apprentice Joined: 20 Jan 2006 Posts: 166

Post your grub.conf?
Is that what it should look like?

DreamHawk · n00b Joined: 14 Aug 2006 Posts: 31

It looks like this.

default 0
timeout 30
splashimage=(hd0,0)/boot/grub/splash.xpm.gz

title=Gentoo Linux 2.4.32-r7
root (hd0,0)
kernel /boot/kernel-genkernel-x86-2.4.32-gentoo-r7 root=/dev/ram0 init=/linuxrc ramdisk=8192 real_boot=/dev/hda3 udev
initrd /boot/initrd-genkernel-x86-2.4.32-gentoo-r7

I used genkernel

DreamHawk · n00b Joined: 14 Aug 2006 Posts: 31

Please help!!!

DreamHawk · n00b Joined: 14 Aug 2006 Posts: 31

Please help!!!

cyrillic

DreamHawk · n00b Joined: 14 Aug 2006 Posts: 31

I changed real_boot to real_root, and deleted udev.
Then i got this error "the root /dev/hda3 cannot be found" or something, but it actually exists.
Then the second error is "Root block device was not found, it is not specified." or something like that.

Please help me.

cyrillic · Posted: Sun Aug 27, 2006 2:56 pm Post subject:

It could be that your kernel does not have the right driver for the IDE controller that /dev/hda is plugged into.

It could also be that your kernel does not include support for the filesystem that you have on /dev/hda3.

It could also be a problem with udev vs. devfs, and the correct device nodes not existing in the initrd.

DreamHawk · n00b Joined: 14 Aug 2006 Posts: 31

Okay, and how do i fix this...

I am so frickin' tired of this right now, i can't mount proc and dev and that means i can't chroot...

Know to help that?

cyrillic · Posted: Sun Aug 27, 2006 3:32 pm Post subject:

The chroot command will still work if /proc and /dev are not mounted, but you do need the root partition mounted.

I'm curious, is there any particular reason you are using a 2.4 kernel instead of a (more recent, and better supported) 2.6 kernel ?

DreamHawk · n00b Joined: 14 Aug 2006 Posts: 31

I shall try to do a new install, i got a mirror and then i did emerge gentoo-sources, and after that, i got the 2.4 kernel.

cyrillic · Posted: Sun Aug 27, 2006 7:27 pm Post subject:

lyonsd · Posted: Tue Aug 29, 2006 8:03 pm Post subject: I'm having a similar problem

Everything was working fine using the following kernel:

2.6.16-gentoo-r9

Then I compiled

2.6.17-gentoo-r6

And it craps out booting. Says something about invalid boot device /dev/hda4 ... whatever

The grub.conf is virtually idenitcal...