I had this problem in Karmic x86, when upgrading to generic kernel
2.6.31-20.
Apparently kernel 2.6.31-19 was still bootable.
Just booting that and running
sudo grub-install --recheck /dev/sda
fixed it.
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Grub error 13: Invalid or unsupported executable format
https://bugs.launchpad.net/bugs
Never had the problem since i switched to Mint (same kernels), have
recently updated from 2.6.31-16 to 2.6.31-17 myself, so it's definitely
something to do with the update manager.
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Grub error 13: Invalid or unsupported executable format
https://bugs.launchpad.net/bugs/365331
You received this
do you still have that broken kernel? please post output of ls -l /boot/
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Grub error 13: Invalid or unsupported executable format
https://bugs.launchpad.net/bugs/365331
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ubuntu-bugs ma
Same here, upgraded from jaunty to karmic (and ext3->ext4) week ago
without problems, today after kernel update from 2.6.31-16 to 2.6.31-17
ended up with Invalid or unsupported executable format on boot - still
was able to boot with 2.6.31-16
--
Grub error 13: Invalid or unsupported executable fo
confirmed.
Karmic, ext3 to ext4 migration a few weeks ago, no problem after a few reboot
until a kernel update arrived.
** Changed in: grub (Ubuntu)
Status: New => Confirmed
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Grub error 13: Invalid or unsupported executable format
https://bugs.launchpad.net/bugs/365331
You received th
Rebooted to 9.10 live CD, mounted my hard drives manually.
Ran grub-install --root-directory=/mnt/sdb1 /dev/sdb
That gave me a bunch of files in /mnt/sdb1/grub, but no grub.cfg. I did,
however, have /mnt/sdb1/grub.d/*
Then did mount --bind /dev /mny/sdb1/dev && mount --bind /proc /dev/sdb1/proc
Just hit this problem upgrading to 2.6.31 on a Karmic system, so it's
still happening.
Selecting 2.6.28 from the menu allowed the system to boot. I then ran
grub-install --recheck and rebooted again, and that killed it completely
--I get "GRUB loading, please wait..." and then it hangs.
--
Grub
Same issue here. I upgraded from 8.04 to 9.04 on my eeepc. At some
point, on 9.04, I switched to ext4. That would work fine. After that,
there was a kernel upgrade that I install, and after reboot I got the
dreaded grub error 13. Thankfully, the workaround reported by mac_v
worked for me, too.
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This solved the problem for me, from >
http://ubuntuforums.org/showpost.php?p=6977997&postcount=5
Quote:
boot from the live medium and chroot into the Linux installation:
$ sudo mkdir /mnt/linux
$ sudo mount -t ext4 /dev/sda1 /mnt/linux
$ sudo mount -t proc proc /mnt/linux/proc
$ sudo mount -t sy
I've had exactly the same experience of sojourner above.
--
Grub error 13: Invalid or unsupported executable format
https://bugs.launchpad.net/bugs/365331
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ubunt
this occured to me after a fresh install of jaunty ( released version)
with ext4 and then changing sources .lst to karmic and updating, all
went well until I installed the 2.6.30-1 kernel , with that kernel I
would get grub error 13 , with 2.6.28-11 the boot was ok , reinstalling
grub from within
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