Announcement

**lmilano** · Aug 01, 2009, 09:59 AM

Re: Kernel Update problem

This typically means that you have a problem in the grub configuration. Can you please post the output of

Code:

cat /boot/grub/menu.lst

Generally speaking, you can install kgrubeditor and then access it in the System Settings -> Advanced tab. There is also a comprehensive guide to grub here (by QMike). BUt if you post the contents of that file it may be a no-brainer (since one of the kernels is booting).

**larbac** · Aug 01, 2009, 11:11 AM

Re: Kernel Update problem

Hi

Thanks for your reply.
Here it is:

default 0
timeout 10

### BEGIN AUTOMAGIC KERNELS LIST
## lines between the AUTOMAGIC KERNELS LIST markers will be modified
## by the debian update-grub script except for the default options below

## DO NOT UNCOMMENT THEM, Just edit them to your needs

## ## Start Default Options ##
## default kernel options
## default kernel options for automagic boot options
## If you want special options for specific kernels use kopt_x_y_z
## where x.y.z is kernel version. Minor versions can be omitted.
## e.g. kopt=root=/dev/hda1 ro
## kopt_2_6_8=root=/dev/hdc1 ro
## kopt_2_6_8_2_686=root=/dev/hdc2 ro
# kopt=root=UUID=2c6c8919-cd59-4dbe-8f68-440443b92864 ro locale=pt_PT

## default grub root device
## e.g. groot=(hd0,0)
# groot=2c6c8919-cd59-4dbe-8f68-440443b92864

## should update-grub create alternative automagic boot options
## e.g. alternative=true
## alternative=false
# alternative=true

## should update-grub lock alternative automagic boot options
## e.g. lockalternative=true
## lockalternative=false
# lockalternative=false

## additional options to use with the default boot option, but not with the
## alternatives
## e.g. defoptions=vga=791 resume=/dev/hda5
# defoptions=quiet splash

## should update-grub lock old automagic boot options
## e.g. lockold=false
## lockold=true
# lockold=false

## Xen hypervisor options to use with the default Xen boot option
# xenhopt=

## Xen Linux kernel options to use with the default Xen boot option
# xenkopt=console=tty0

## altoption boot targets option
## multiple altoptions lines are allowed
## e.g. altoptions=(extra menu suffix) extra boot options
## altoptions=(recovery) single
# altoptions=(recovery mode) single

## controls how many kernels should be put into the menu.lst
## only counts the first occurence of a kernel, not the
## alternative kernel options
## e.g. howmany=all
## howmany=7
# howmany=all

## specify if running in Xen domU or have grub detect automatically
## update-grub will ignore non-xen kernels when running in domU and vice versa
## e.g. indomU=detect
## indomU=true
## indomU=false
# indomU=detect

## should update-grub create memtest86 boot option
## e.g. memtest86=true
## memtest86=false
# memtest86=true

## should update-grub adjust the value of the default booted system
## can be true or false
# updatedefaultentry=false

## should update-grub add savedefault to the default options
## can be true or false
# savedefault=false

## ## End Default Options ##

title Ubuntu 9.04, kernel 2.6.28-15-generic
uuid 2c6c8919-cd59-4dbe-8f68-440443b92864
kernel /boot/vmlinuz-2.6.28-15-generic root=UUID=2c6c8919-cd59-4dbe-8f68-440443b92864 ro locale=pt_PT quiet splash
initrd /boot/initrd.img-2.6.28-15-generic
quiet

title Ubuntu 9.04, kernel 2.6.28-15-generic (recovery mode)
uuid 2c6c8919-cd59-4dbe-8f68-440443b92864
kernel /boot/vmlinuz-2.6.28-15-generic root=UUID=2c6c8919-cd59-4dbe-8f68-440443b92864 ro locale=pt_PT single
initrd /boot/initrd.img-2.6.28-15-generic

title Ubuntu 9.04, kernel 2.6.28-14-generic
uuid 2c6c8919-cd59-4dbe-8f68-440443b92864
kernel /boot/vmlinuz-2.6.28-14-generic root=UUID=2c6c8919-cd59-4dbe-8f68-440443b92864 ro locale=pt_PT quiet splash
initrd /boot/initrd.img-2.6.28-14-generic
quiet

title Ubuntu 9.04, kernel 2.6.28-14-generic (recovery mode)
uuid 2c6c8919-cd59-4dbe-8f68-440443b92864
kernel /boot/vmlinuz-2.6.28-14-generic root=UUID=2c6c8919-cd59-4dbe-8f68-440443b92864 ro locale=pt_PT single
initrd /boot/initrd.img-2.6.28-14-generic

title Ubuntu 9.04, kernel 2.6.28-13-generic
uuid 2c6c8919-cd59-4dbe-8f68-440443b92864
kernel /boot/vmlinuz-2.6.28-13-generic root=UUID=2c6c8919-cd59-4dbe-8f68-440443b92864 ro locale=pt_PT quiet splash
initrd /boot/initrd.img-2.6.28-13-generic
quiet

title Ubuntu 9.04, kernel 2.6.28-13-generic (recovery mode)
uuid 2c6c8919-cd59-4dbe-8f68-440443b92864
kernel /boot/vmlinuz-2.6.28-13-generic root=UUID=2c6c8919-cd59-4dbe-8f68-440443b92864 ro locale=pt_PT single
initrd /boot/initrd.img-2.6.28-13-generic

title Ubuntu 9.04, kernel 2.6.28-12-generic
uuid 2c6c8919-cd59-4dbe-8f68-440443b92864
kernel /boot/vmlinuz-2.6.28-12-generic root=UUID=2c6c8919-cd59-4dbe-8f68-440443b92864 ro locale=pt_PT quiet splash
initrd /boot/initrd.img-2.6.28-12-generic
quiet

title Ubuntu 9.04, kernel 2.6.28-12-generic (recovery mode)
uuid 2c6c8919-cd59-4dbe-8f68-440443b92864
kernel /boot/vmlinuz-2.6.28-12-generic root=UUID=2c6c8919-cd59-4dbe-8f68-440443b92864 ro locale=pt_PT single
initrd /boot/initrd.img-2.6.28-12-generic

title Ubuntu 9.04, kernel 2.6.28-11-generic
uuid 2c6c8919-cd59-4dbe-8f68-440443b92864
kernel /boot/vmlinuz-2.6.28-11-generic root=UUID=2c6c8919-cd59-4dbe-8f68-440443b92864 ro locale=pt_PT quiet splash
initrd /boot/initrd.img-2.6.28-11-generic
quiet

title Ubuntu 9.04, kernel 2.6.28-11-generic (recovery mode)
uuid 2c6c8919-cd59-4dbe-8f68-440443b92864
kernel /boot/vmlinuz-2.6.28-11-generic root=UUID=2c6c8919-cd59-4dbe-8f68-440443b92864 ro locale=pt_PT single
initrd /boot/initrd.img-2.6.28-11-generic

title Ubuntu 9.04, kernel 2.6.27-14-generic
uuid 2c6c8919-cd59-4dbe-8f68-440443b92864
kernel /boot/vmlinuz-2.6.27-14-generic root=UUID=2c6c8919-cd59-4dbe-8f68-440443b92864 ro locale=pt_PT quiet splash
initrd /boot/initrd.img-2.6.27-14-generic
quiet

title Ubuntu 9.04, kernel 2.6.27-14-generic (recovery mode)
uuid 2c6c8919-cd59-4dbe-8f68-440443b92864
kernel /boot/vmlinuz-2.6.27-14-generic root=UUID=2c6c8919-cd59-4dbe-8f68-440443b92864 ro locale=pt_PT single
initrd /boot/initrd.img-2.6.27-14-generic

title Ubuntu 9.04, memtest86+
uuid 2c6c8919-cd59-4dbe-8f68-440443b92864
kernel /boot/memtest86+.bin
quiet

### END DEBIAN AUTOMAGIC KERNELS LIST

**doctordruidphd** · Aug 01, 2009, 11:48 AM

Re: Kernel Update problem

From the GRUB Manual:

13 : Invalid or unsupported executable format
This error is returned if the kernel image being loaded is not recognized as Multiboot or one of the supported native formats (Linux zImage or bzImage, FreeBSD, or NetBSD).

Most of the Error 13's I was able to find searching are related to dual booting windows and linux; primarily trying to boot windows incorrectly. From your menu.lst, it doesn't look like that's your problem.

Can you boot any of the "unbootable" kernels in rescue mode?

Another problem might be that the kernels are not installing properly for some reason.
You could boot into your system with kernel-11 and try:

Code:

sudo dpkg-reconfigure linux-image-2.6.28-15-generic

and see if it gives any error messages.

**lmilano** · Aug 01, 2009, 12:10 PM

Re: Kernel Update problem

You are welcome

Arrg, there is no obvious error. Can you please run this in konsole and report the output? (look for error messages, etc)

Code:

sudo update-grub

Please try Dr Duid's recommendation, too, that's a good idea.

**larbac** · Aug 02, 2009, 06:08 AM

Re: Kernel Update problem

Hi

Thanks again.

After the reconfigure command:
Running depmod.
update-initramfs: Generating /boot/initrd.img-2.6.28-15-generic
Not updating initrd symbolic links since we are being updated/reinstalled
(2.6.28-15.48 was configured last, according to dpkg)
Not updating image symbolic links since we are being updated/reinstalled
(2.6.28-15.48 was configured last, according to dpkg)
Running postinst hook script /sbin/update-grub.
Searching for GRUB installation directory ... found: /boot/grub
Searching for default file ... found: /boot/grub/default
Testing for an existing GRUB menu.lst file ... found: /boot/grub/menu.lst
Searching for splash image ... none found, skipping ...
Found kernel: /boot/vmlinuz-2.6.28-15-generic
Found kernel: /boot/vmlinuz-2.6.28-14-generic
Found kernel: /boot/vmlinuz-2.6.28-13-generic
Found kernel: /boot/vmlinuz-2.6.28-12-generic
Found kernel: /boot/vmlinuz-2.6.28-11-generic
Found kernel: /boot/vmlinuz-2.6.27-14-generic
Found kernel: /boot/memtest86+.bin
Updating /boot/grub/menu.lst ... done

Examining /etc/kernel/postinst.d.
run-parts: executing /etc/kernel/postinst.d/dkms
* Running DKMS auto installation service for kernel 2.6.28-15-generic
* fglrx (8.600)... fglrx (8.600): Already installed on this kernel.
[ OK ]
* vboxdrv (3.0.2)... vboxdrv (3.0.2): Already installed on this kernel.
[ OK ]
* vboxnetadp (3.0.2)... vboxnetadp (3.0.2): Already installed on this kernel.
[ OK ]
* vboxnetflt (3.0.2)... vboxnetflt (3.0.2): Already installed on this kernel.
[ OK ]
* virtualbox-ose-guest (3.0.2)... virtualbox-ose-guest (3.0.2): Already installed on this kernel.
[ OK ]
run-parts: executing /etc/kernel/postinst.d/nvidia-common

After the sudo-update-grub:

Searching for GRUB installation directory ... found: /boot/grub
Searching for default file ... found: /boot/grub/default
Testing for an existing GRUB menu.lst file ... found: /boot/grub/menu.lst
Searching for splash image ... none found, skipping ...
Found kernel: /boot/vmlinuz-2.6.28-15-generic
Found kernel: /boot/vmlinuz-2.6.28-14-generic
Found kernel: /boot/vmlinuz-2.6.28-13-generic
Found kernel: /boot/vmlinuz-2.6.28-12-generic
Found kernel: /boot/vmlinuz-2.6.28-11-generic
Found kernel: /boot/vmlinuz-2.6.27-14-generic
Found kernel: /boot/memtest86+.bin
Updating /boot/grub/menu.lst ... done

Still can't boot from those options not even in recovery mode.

**lmilano** · Aug 02, 2009, 08:49 AM

Re: Kernel Update problem

It all looks good. I wonder if there is something about virtual box interfering, are you using it?

Do you know how to edit grub?
http://grumpymole.blogspot.com/2007/...arameters.html

I would do that in your next boot, and try to remove most parameters:

Code:

/boot/vmlinuz-2.6.28-15-generic root=UUID=2c6c8919-cd59-4dbe-8f68-440443b92864 ro

1st. I wonder if the locale is the trouble, and or the vga boot. Other things to try:

Code:

df -h

Code:

ls -lh /boot

(What if there is no space in /boot, etc. I doubt it, but hey)

Another thing you may wanna try is to temporarily add a karmic line in the sources list and install _ONLY_ the kernel from there, and see if it works (and then disable that repo right away -- I am usint this in my eeepc to improve graphics on the Intel IGP).

Best luck!

**lmilano** · Aug 02, 2009, 09:12 AM

Re: Kernel Update problem

Hold on, are you using ext4?
If so, wow, i was hit by the same bug, and used the workaround from here to fix it:
https://bugs.launchpad.net/ubuntu/+s...ub/+bug/365331

I think you owe me a cold one

**larbac** · Aug 02, 2009, 10:06 AM

Re: Kernel Update problem

Yes, I use ext4.

I'll check that bug issue.

Thank You

**lmilano** · Aug 02, 2009, 10:09 AM

Re: Kernel Update problem

Good, it would be great if you could post in Launchpad too

**doctordruidphd** · Aug 02, 2009, 10:23 AM

Re: Kernel Update problem

Hmmm. Looks like GRUB may have issues with ext4. Glad I found out about this, before I reformatted by jaunty/boot partition to ext4...

They are packaging GRUB-2 with new karmic installations, and that may be the ultimate fix for ext4 systems, though from reading this forum, it looks like GRUB-2 is an adventure in itself.

**lmilano** · Aug 02, 2009, 10:29 AM

Re: Kernel Update problem

Originally posted by doctordruidphd

Glad I found out about this, before I reformatted by jaunty/boot partition to ext4...

You well deserve this benefit from helping others in the forum! 8)

**larbac** · Aug 02, 2009, 01:21 PM

Re: Kernel Update problem

Hi again

I'm still a little newbie

Do you think it's better for me to wait till the bug is solved? Will it be soon?
Or should I adventure myself into the terminal adventure??

Thanks for all your support

**lmilano** · Aug 02, 2009, 03:52 PM

Re: Kernel Update problem

Actually, I looked at the workaround. Because you can boot from the old kernel, you only need the last step:

I am assuming you only have one hard drive. In that case, you may try this (WARNING: most likely this will solve the issue, but this will recreate the bootloader, so there is a very small chance, but a change you may be unable to boot after this):

Code:

sudo grub-install --recheck /dev/sda

Otherwise, please post the output of "df -h"

**larbac** · Aug 03, 2009, 03:04 AM

Re: Kernel Update problem

Hi lmilano

You are great, thanks for all your help.

I'll post the output of the command, because I have 3 disks

Is better that way.

Thanks again

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