Grub Error Collection [Part 3]

sonicbhoc · Posted: Mon Dec 12, 2005 3:14 am Post subject:

Grub keeps mounting my reiser3 partition read only! why? just so you know, my reiser partition is / and ext2 is /boot.

Cinquante · n00b Joined: 02 Dec 2005 Posts: 1

Hello

When i boot with my personnal livecd, it can't boot.
This is the result of setup (cd) in grub :

NeddySeagoon · Posted: Tue Dec 13, 2005 6:07 pm Post subject:

sonicbhoc,

grub does not actually mount any partitions. All it does is load the kernel into memory, load in initrd file (if there is one) into memory and attach it to /dev/ram0 then pass control to the kernel. From here on its up to the kernel.

HAving said that, I suspect that you get an error message about fsck failing during booting.
This is normallay caused by incorrect entries in /etc/fstab. Look carefully at the line for your root partition.
_________________
Regards,

NeddySeagoon

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

Legions · n00b Joined: 16 Dec 2005 Posts: 1

i dont know what a grub is :-/
_________________
hello world!

jmbsvicetto · Posted: Fri Dec 16, 2005 11:24 pm Post subject:

Hi and welcome to the forums Legions!

GRUB is the GRand Unified Boot-loader. It boots your system and presents you the menu to select the OS or kernel to boot.
_________________
Jorge.

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

inf0c0m · n00b Joined: 13 Jul 2004 Posts: 4

im getting the 'Error 15'. never really had this problem before, tried reinstalling grub a few times, nothing has worked yet. heres the info i can provide, lemt me know what else is needed

grub.conf:

default 0
timeout 5
splashimage=(hd0,0)/boot/grub/splash.xpm.gz
title=Gentoo Linux 2.6.14-r5
root (hd0,0)
kernel /boot/kernel-2.6.14-gentoo-r5 root=/dev/hda3

livecd linux # ls -l /boot/
total 2406
-rw-r--r-- 1 root root 33754 Dec 16 18:43 config-2.6.14-gentoo-r5
drwxr-xr-x 2 root root 1024 Dec 16 19:32 grub
-rw-r--r-- 1 root root 2404124 Dec 16 19:31 kernel-2.6.14-gentoo-r5
drwx------ 2 root root 12288 Dec 16 15:16 lost+found

any reason my system.map isnt there as well as a ton of other files that normally are? a look at my working gentoo system:

mythbox ~ # less /boot/grub/grub.conf
default 0
timeout 5
splashimage=(hd0,0)/boot/grub/splash.xpm.gz
title=Gentoo Linux 2.6.14-r4
root (hd0,0)
kernel /boot/kernel-2.6.14-gentoo-r4 root=/dev/hda3

mythbox ~ # ls -l /boot/
total 5555
lrwxrwxrwx 1 root root 27 Dec 11 05:10 System.map -> System.map-2.6.14-gentoo-r4
-rw-r--r-- 1 root root 923106 Dec 11 05:10 System.map-2.6.14-gentoo-r4
lrwxrwxrwx 1 root root 1 Dec 10 18:45 boot -> .
lrwxrwxrwx 1 root root 23 Dec 11 05:10 config -> config-2.6.14-gentoo-r4
-rw-r--r-- 1 root root 38041 Dec 11 05:14 config-2.6.14-gentoo-r4
drwxr-xr-x 2 root root 1024 Dec 16 18:24 grub
-rw-r--r-- 1 root root 2342714 Dec 12 12:38 kernel-2.6.14-gentoo-r4
drwx------ 2 root root 12288 Dec 10 18:28 lost+found
lrwxrwxrwx 1 root root 24 Dec 11 05:10 vmlinuz -> vmlinuz-2.6.14-gentoo-r4
-rw-r--r-- 1 root root 2342520 Dec 11 05:10 vmlinuz-2.6.14-gentoo-r4

any ideas?

NeddySeagoon · lrwxrwxrwx 1 root root 1 Dec 14 2004 boot -> .

inf0c0m,

info grub says :-

inf0c0m · n00b Joined: 13 Jul 2004 Posts: 4

othar · n00b Joined: 17 Dec 2005 Posts: 2

Hi, I'm new to the linux and gentoo stuff but I'm giving it a try. Currently I'm trying to install a kernel-2.6.12-gentoo-r6 on a Xeon computer. Everything run smoothly (kind of, after a few tries) till the reboot part, I installed the grub but on the boot I get the following message:

root (hd0,0)
filesystem type is ext2fs, partition type 0x83
kernel /kernel-2.6.12-gentoo-r6-myfirstkernel
[Linux-bzimage, setup=0x1c00, size=0x207490]
root=/dev/sda3 udev

Error 11: Unrecognized device string

My guess is that the grub does not recognize the filesystem on the boot partition, because the filesystem is actually an ext3fs, not an ext2 like the message says. I did this cause the boot partition size is 1 Gb, and someone told me that in large partitions the ext3 is better.
My disk partitions are as follows:
sda1 Boot ext3fs
sda2 swap
sda3 root ext3fs
sda4 home ext3fs
And the computer does have an sda, not a hda.
The grub.conf is like this:
default=0
timeout=2
#splashimage=(hd0,1)/grub/splash.xpm.gz
title Gentoo
root (hd0,0)
kernel /kernel-2.6.12-gentoo-r6-myfirstkernel
root=/dev/sda3 udev

Can anyone tell me how to stop this from happening?

Thanks

NeddySeagoon · Posted: Sat Dec 17, 2005 5:12 pm Post subject:

inf0c0m,

Yes - I can tell you have a real boot partition because your ls /boot showed a lost+found folder.
Removing the /boot from the two lines I hightligheted in your grib.conf should fix your grub issue.

Your splashimage failed because (hd0,1) is your swap. There is no splashimage file there.
_________________
Regards,

NeddySeagoon

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

NeddySeagoon · Posted: Sat Dec 17, 2005 5:15 pm Post subject:

othar,

This must be on a single line in grub.conf

othar · n00b Joined: 17 Dec 2005 Posts: 2

Thanks, I've never suspected that.

Lazy_Dewd · Tux's lil' helper Joined: 22 Dec 2004 Posts: 144

haven't seen this one around. for the collection

Problem:
Grub Error 13: can't recall what it was he said but it was something about not being able to read the executable format. not sure tough. correct me by all means

solution: simply booted with my backup-kernel (if you don't have it, just use the cd) and made my kernel again (actually, I didn't changed anything), listed the modules and checked them with the ones in the autoload.d file. ran modules-update
reboot. worked fine.

hope it can help someone - don't know what it went wrong the first time tough.
working backup kernel is not a luxury

DrunkenWarrior · n00b Joined: 20 Oct 2005 Posts: 48

hey all you grub jedi's...

....i installed gentoo as per the standard instructions in the handbook, same reccomended partition scheme on one hard drive.

i have 2 maxtor drives, both of them have correct jumper settings for master and slave.:
1. master: 40g
2. slave: 200g

when i add the 2nd hdd (slave) grub gives

Grub Error 15

and thats it! i bought a new cable, didn't fix the problem. i had linux installed on the 200g also, so i tried removing the partitions with fdisk but it didn't help. come to think of it, i deleted the partitions then quit, did i have to save that to the disk before quitting? anyways..

grub works if only the master is connected. what do i have to do to get the other drive formatted ext3 and working to store my data?

many thanks in advance..

[here is my grub.conf:]

Lazy_Dewd · Tux's lil' helper Joined: 22 Dec 2004 Posts: 144

NeddySeagoon · Posted: Mon Dec 19, 2005 6:04 pm Post subject:

DrunkenWarrior,

I suspect that you are trying to boot from your slave if itrs fitted and the BIOS falls back to the master if its not there.
Boot the liveCD with both master and slave fitted and go prat waay through the manual grub install, using grubs tab completion.
You will use the different partition layout on each drive to tell them apart.

In the following -> means press the tab key. Do

stokesxray · n00b Joined: 28 Jul 2005 Posts: 6

I am totally new to linux. when I installed gentoo and got to the part about grub i used the grub command and type the wrong leading ) ) instead of this ( how to i change this? I can get the system to boot when I edit that line and then hit b but I would like to make it permanant.

thanks

merry xmas

at240 · l33t Joined: 12 Aug 2005 Posts: 603 Location: UK

You need to edit /boot/grub/grub.conf

So, as root, mount your /boot partition (mount /boot) if it isn't already mounted and then:

nixnut · Posted: Mon Dec 19, 2005 7:06 pm Post subject:

Merged above two posts here.
_________________
Please add [solved] to the initial post's subject line if you feel your problem is resolved. Help answer the unanswered

talk is cheap. supply exceeds demand

stokesxray · n00b Joined: 28 Jul 2005 Posts: 6

thanks a ton Tux's lil' helper did the trick

Anon5710 · Posted: Mon Dec 19, 2005 10:00 pm Post subject:

Gasp... How am i going to explain this..

Okey about 2 hours ago i had a fully working gentoo system.
Now for some damn reason i did a

NeddySeagoon · Posted: Mon Dec 19, 2005 11:11 pm Post subject:

Anon5710,

Error 15 is file not found. Either your splashimage or kernel filenames are wrong ?
Do you see the splash image at boot time, if so, its your kernel filename thats the problem
_________________
Regards,

NeddySeagoon

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

Anon5710 · Posted: Tue Dec 20, 2005 4:26 pm Post subject:

i do not see the splashimage at boot

Anon5710 · Posted: Tue Dec 20, 2005 4:48 pm Post subject:

i recheked it again...
My grub.conf does really point to the right locations :cry:

rncwnd · n00b Joined: 13 Jun 2003 Posts: 69 Location: Germany

Does anybody know EXACTLY what error 17 means?
Is it a problem with the grub installation (grub; root (hdx,y); setup(hdz)

or is it a grub.conf problem?

My config:

hde -> data disk (non-boot, non-os, PATA-Disc)
sda -> Win XP Pro disc (bootable)
sdb -> Gentoo Disc (non-boot)

sdb1 -> /boot
sdb5 -> /
sdb6 -> swap

theoretically it should be:
(hd0) -> hde
(hd1) -> sda
(hd2) -> sdb

I installed grub in the mbr of (hd0) which is sda. That's correct so far.
I pointed grub to use (hd2,0) as "root". That should be correct (I tried also hd0 and hd1, but there is no e2fs-partition on)

Why do I get error 17????

Greez,
Andy