Grub Error Collection [Part 6]

jmbsvicetto · Posted: Sun Aug 13, 2006 10:02 pm Post subject:

FcukThisGame,

actually your boot device won't necessarily be /dev/sda. Your BIOS should allow you to select what disk you want to boot. However, the kernel should call /dev/sda to the first SATA disk. So GRUB might call hd0 to the disk the kernel calls /dev/sdb.
_________________
Jorge.

Your twisted, but hopefully friendly daemon.
AMD64 / x86 / Sparc Gentoo
Help answer || emwrap.sh

taewon · n00b Joined: 07 Mar 2004 Posts: 2

NeddySeagoon · Posted: Sun Aug 13, 2006 10:52 pm Post subject:

taewon,

Welcome to gentoo.

To get back into the chroot when your new kernel will not boot, start the liveCD with the nox option if you have the GUI version. Now follow the install guide steps for mounting your partitions, proc and /dev and swapon.
Do not use fdisk. Do not make any filesystems - those steps will destroy your install.

Now follow the guide to chroot and set the environment inside the chroot.

You are now back inside the chroot with your install running on top of the liveCD kernel.
_________________
Regards,

NeddySeagoon

Computer users fall into two groups:-
those that do backups
those that have never had a hard drive fail.

FcukThisGame · l33t Joined: 20 Apr 2005 Posts: 776 Location: /lost+found

On my subthread,

I chrooted in with the livecd and by the grace of god, I got it to boot. Now... I've recompiled my own kernel... and I'm getting a kernel panic referring to my root= param.

My /boot:

jmbsvicetto · Posted: Mon Aug 14, 2006 2:10 am Post subject:

FcukThisGame,

please post your exact error. If you get the "unknown block device /dev/sda3 (hdX,Y)" error, you probably are missing the driver for your storage controller in the kernel <*> and not as a module <M>.
You should look at the output of lspci to determine your storage controller.
_________________
Jorge.

Your twisted, but hopefully friendly daemon.
AMD64 / x86 / Sparc Gentoo
Help answer || emwrap.sh

NeddySeagoon · Posted: Mon Aug 14, 2006 9:26 am Post subject:

FcukThisGame,

If your problem is with the ICH7 based board in your sig, check your kernel against this post
_________________
Regards,

NeddySeagoon

Computer users fall into two groups:-
those that do backups
those that have never had a hard drive fail.

heri0n · n00b Joined: 07 Feb 2006 Posts: 27

I just left the country for a couple months and when i got back grub seems to be messed
Anyways I'm trying to reinstall grub with knoppix
So I mounted gentoo and proc
mount /;dev/hda4 /mnt/gentoo
mount -t proc none /mnt/gentoo//proc
chroot /mnt/gentoo
then i just tried installing grub

jmbsvicetto · Posted: Tue Aug 15, 2006 1:12 am Post subject:

heri0n,

are you sure that you don't have a /boot partition? You didn't mount it. Look at the output of fdisk -l.
_________________
Jorge.

Your twisted, but hopefully friendly daemon.
AMD64 / x86 / Sparc Gentoo
Help answer || emwrap.sh

heri0n · n00b Joined: 07 Feb 2006 Posts: 27

yes
i just added the /boot dir to my main partition on /dev/hda4

NeddySeagoon · Posted: Tue Aug 15, 2006 9:55 am Post subject:

heri0n,

You missed mount -o bind /dev/ /mnt/gentoo/dev
Knoppix will already have your partitions mounted read only, you need to umount them so you can mount them somewhere else read write. Explicity giving the -o rw may help too.
_________________
Regards,

NeddySeagoon

Computer users fall into two groups:-
those that do backups
those that have never had a hard drive fail.

Crooksey · Posted: Sun Aug 20, 2006 9:29 pm Post subject:

I looked through this thread and havent found my answer, so here goes...

I know that somewhere in your grub.cof you can add the line "vga=775". to change the resolution of the shell to 1280x1024, what part of my grub.conf do i need to add this to, thanks.

Headrush · Posted: Sun Aug 20, 2006 9:34 pm Post subject:

Crooksey · Posted: Mon Aug 21, 2006 9:31 am Post subject:

Thanks

d_logan · n00b Joined: 09 May 2006 Posts: 73

Grub gives me "Error 13: Invalid or unsupported executable format"
when I try to boot Windows XP.

Windows XP was installed after Gentoo, and Gentoo still boots fine.

fdisk -l gives

RageOfOrder · Last edited by RageOfOrder on Wed Aug 23, 2006 12:13 am; edited 1 time in total

jmbsvicetto · Posted: Wed Aug 23, 2006 12:09 am Post subject:

Hi.

Try using the following:

jmbsvicetto · Posted: Wed Aug 23, 2006 12:17 am Post subject:

[mod]Merged above three posts here.[/mod]
_________________
Jorge.

Your twisted, but hopefully friendly daemon.
AMD64 / x86 / Sparc Gentoo
Help answer || emwrap.sh

d_logan · n00b Joined: 09 May 2006 Posts: 73

slycordinator · Advocate Joined: 31 Jan 2004 Posts: 3065 Location: Korea

FcukThisGame · l33t Joined: 20 Apr 2005 Posts: 776 Location: /lost+found

This has now happened to me twice: I've used the 2006.0 amd64 livecd installer to install grub into /dev/sda (hd0,0). It responds with 'success' or something of the sort and I take that as it'd work. I reboot and it doesn't load grub. It is the first drive and it wasn't installed into my second sata3g drive because the windows bootloader is still intact (that's the one it goes to) It is set in the bios to boot my gentoo drive first; I've tried either first. I went back into the livecd, chrooted, re-emerged grub, updated my mtab and used grub-install /dev/sda again, which came back with success. Reboot, no grub. I repeat the process and use

jmbsvicetto · Posted: Sun Aug 27, 2006 4:26 am Post subject:

Have you tried creating /boot/grub/device.map? Using something like:

FcukThisGame · l33t Joined: 20 Apr 2005 Posts: 776 Location: /lost+found

JHe · n00b Joined: 26 Aug 2006 Posts: 8

Hello all;

Im trying a stage3 Gentoo installation and so far so good except I'm getting Grub error 17: "cannot mount selected partition. Plus the screen looks a bit mucked up; the resolution looks off and there are vertical lines across the screen. :evil:

My computer is a Dell Centrino Inspiron 9300 with 2gigs of ram, an Nvidia Geforce 6800 go, 1.86ghz Pentium-M processor.

Here is the fstab file i made up for my system:

There is no sda1 since that is the Dell system tools partition

And here is the Grub config that I typed up as well:

Help!

Thanks in advance

JHe · n00b Joined: 26 Aug 2006 Posts: 8

Ok I solved the craped out screen by commenting out the splashimage. Now on to the boot problem....

JHe · n00b Joined: 26 Aug 2006 Posts: 8

hmm I after looking at a previous post I changed the line in the grub.conf file where "root" is to,

root (hd0,5)

And now I am getting...

Booting Gentoo Linux -----

root (hd,05)
Filesystem type is ext2fs, partition type 0x83
kernel /boot/2.6.17-gentoo-r4 root=/dev/sda6

Error 15: File not found

I am assuming that hd0,5 is actually sda6 since sda4 is the extended partition which Grub is ignoring?