kernel / booting problems, error 13: [solved]

Keiko · Tux's lil' helper Joined: 27 Dec 2005 Posts: 98

Hia,

This began when i started setting up samba following the how to guide, i reached the point to do a test mount of my first smb share, but i got an error, after looking it up, it meant that smbfs wasn't compiled in my kernel, which was odd, as i compiled it explicitedly myself... hmmm, so i went back double checked and compiled my kernel again, nope, i tried as a module nope...

I got a few people involved and went through it step by step, this time i created a new GrUB entry for a testing kernel and renamed my new bzImage appropriately for this new testing entry, and rebooted to try it... it didn't work, giving an error, i've tried various things includding and fsck reboots, more kernel re-compiles, and i'm rather lost, can anyone help me please, the boot error is as follows:

Booting Gentoo Testing Kernel

root(hd0,6)
Filesystem type is ext2fs, Partition type 0x83
Kernel / gentoo-testing

Error 13: Invalid or unsupportted executeable format.

I appreciate any help you can give, i've looked around the forum, various websites, and as yet havn't found a solutionn and desperately need asistance, it now appears i can't use any re-compiled kernels, and certainly can't get samba running until this is fixed.

Thanks - Keiko

TheRAt · Veteran Joined: 03 Jun 2002 Posts: 1580

The error message you are getting is a grub stage 2 error...

Keiko · Tux's lil' helper Joined: 27 Dec 2005 Posts: 98

Hia, thanks for your reply,

My Grub.conf file is:

--------------------------------------------------------------------

# For booting GNU/Linux
title Gentoo-2.6.14-r5
root (hd0,6)
kernel /Gentoo-2.6.14-r5
vga=792
#video vesafb:mtrr,ywrap,1024x768-32@85
#initrd /initrd.img

# For booting Gentoo test kernel
title Gentoo-Testing-Kernel
root (hd0,6)
kernel /Gentoo-testing
vga=792
#video vesafb:mtrr,ywrap,1024x768-32@85
#initrd /initrd.img

# For booting Windows XP
title Windows XP
rootnoverify (hd0,0)
makeactive
chainloader +1
# For loading DOS if Windows NT is installed
# chainload /bootsect.dos
-----------------------------------------------------

And my partitions are:

=======================================================

All my partitions are on the same disk, its the only one i have, its a little complex i now, but i havn't had a problem before, i've managed to succesfully re-compile kernels before...

anyways... my partitions are:

======================================================

hda1 - Windows XP, root, NTFS
hda5 - Shared data, FAT32
hda6 - Gentoo, / , reiserFS
hda7 - Gentoo, boot , ex3fs
hda8 - Gentoo, /tmp , ex3fs
hda9 - Gentoo, /var , ex3fs
hda10 - Gentoo, /usr , ex3fs
hda11 - Gentoo, /home, ex3fs
hda12 - Gentoo, Swap , swap
hda13 - Shared Media, FAT32

========================================================

Hope this helps, Thank you

Keiko

TheRAt · Veteran Joined: 03 Jun 2002 Posts: 1580

Are you sure that there is a Gentoo-testing in your /boot partition?
Did you by chance not have the partition mounted when you copied the files across?
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Xaid · Posted: Fri Feb 24, 2006 5:45 am Post subject:

I'm not sure how significant is this, but its worth checking as well. You have the "vga=792" on a line by itself in multiple locations, I think it should be on the same line as the kernel (or it doesn't make a difference?), so something like

Keiko · Tux's lil' helper Joined: 27 Dec 2005 Posts: 98

Hia, thanks for your repplies:

The RAT, well thats a mistake i could have made, so i got a friend, to talk me through each step, to see if i did something wrong, nope for this at least, /boot was mounted correctly.
and yes i'm sure that the 'Gentoo-testing' kernel is there, i've checked and tripple checked, when i've made that mistake before i've gotten Error 15: File not found.

Xaid, well i dont think its made an impact, certainly my normal kernel boots, maybe the vga option doesn't work on a line by itself, but i'll try it out, it will reduce the clutter of my conf file anyways..

Afer running the command "file /boot/Gentoo-testing" the following was returned:

/boot/Gentoo-testing ASCII English text

Hope this new info helps, thanks again for your response.

Keiko

Keiko · Tux's lil' helper Joined: 27 Dec 2005 Posts: 98

Update
=======

I have just ran the command "file /boot/Gentoo-2.6.14-r5" (my nomal kernel)

which retunred:

Gentoo-2.6.14-r5: x86 boot sector, so theres deffinatley something wrong with my new kernel file, i just dont know what.

A mailing list, suggested that i run "cat /proc/filesystems" i dont understand the output really, but thought you guy's might be able to diagnose this proble better with it so here it is:

-----------------------------------------------------------------
nodev sysfs
nodev rootfs
nodev bdev
nodev proc
nodev sockfs
nodev binfmt_misc
nodev usbfs
nodev pipefs
nodev futexfs
nodev tmpfs
nodev inotifyfs
nodev eventpollfs
nodev devpts
reiserfs
ext3
ext2
nodev ramfs
msdos
vfat
iso9660
nodev nfs
nodev nfsd
nodev cifs
ntfs
nodev autofs
udf
nodev mqueue
nodev oprofilefs
nodev rpc_pipefs
--------------------------------------------------------------

It was also reccomended that i change my new GrUB entry, so that it will boot my normal kernel, to make sure the problem wasn't with GrUB, i'm sure it isn't especially after the above command, but i did it anyway, and have successfully managed to boot into my normal kernel via the new GrUB entry.

Hope this helps - Keiko

TheRAt · Veteran Joined: 03 Jun 2002 Posts: 1580

What steps (commands) are you using to build your new kernel?
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Keiko · Tux's lil' helper Joined: 27 Dec 2005 Posts: 98

Hia,

The usual i believe,

#cd /usr/src/linux
#make menuconfig

- save new configuration file

#make && modules install

#cp arch/i386/boot/bzImage /boot/Gentoo-testing
#cp .config /boot/config-Gentoo-testing

TheRAt · Veteran Joined: 03 Jun 2002 Posts: 1580

so, what is the output from:

Keiko · Tux's lil' helper Joined: 27 Dec 2005 Posts: 98

Hia,

This suprised me actually, i got:

/usr/src/linux/arch/i386/boot/bzImage: x86 boot sector

Keiko

TheRAt · Veteran Joined: 03 Jun 2002 Posts: 1580

It seems then that something strange is happening when you copy the file..
Could you try to copy the file, then run the file command on the destination file?
Post your results...
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Keiko · Tux's lil' helper Joined: 27 Dec 2005 Posts: 98

Hia,

Just copied it over, named it Gentoo-Testing this time (capital T) and ran file, its worked, i'm still not sure why it didn't all those times before,

/usrc/src/linux/arch/i386/boot/bzImage/Gentoo-Testing x86 boot sector

I'm unsure on something though, will this kernel contain smbfs, which is what i tried to add last time, or will i have to run make menuconfig again, then again i guess i should do that anyway just to test hadn't i

Thanks - Keiko

TheRAt · Veteran Joined: 03 Jun 2002 Posts: 1580

You will need to confirm by taking a look at the kernel configs...
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Keiko · Tux's lil' helper Joined: 27 Dec 2005 Posts: 98

Hia,

I'm delighted to say that its fixed, i still dont know why, but it works, i've now renamed each kernel file, so i boot into my new kernel by default, and as a huge bonus my samba config is working.

Thanks for all your help, i owe you a debt of gratitude.

Keiko

TheRAt · Veteran Joined: 03 Jun 2002 Posts: 1580

np..
enjoy..
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