[svlug] building SMP kernel - Debian - Grub - Kernel Panic
satyen.sheth at gmail.com
Tue Dec 27 14:29:48 PST 2005
Wondering if I could be nudged to solve my kernel panic problem:
I have a Dell PowerEdge 1850 ( dual Xenon ) with lots of memory.
PERC 4e/Si RAID controller.
Debian - Installer(Sarge) with kernel 2.4.x comes up fine and
recognizes my RAID.
Boots to EXT3 filesystem and Life is happy.
* Now upgrading to kernel version 2.6.14
There is support left in for Ext2 + Ext3 + ReiserFs + XFS
make-kpkg --revision=debian.2.6.14.SMP.v1.0 kernel_image
dpkg -i <kernelname.deb>
** At this point /boot/grub/menu.lst gets updated to include the 2.5
kernel and symlink gets updated to enable booting to 2.6 kernel.
Upon boot to the 2.6 kerne, I get the following error:
"VFS: Cannot open root device "sda1" or unknown-block(0,0)
Please append a correct "root=" boot option
Kernel Panic: VFS: Unable to mount root ds on unknown-block (0,0)"
My prior experience has always been kernel upgrades when running LILO,
where I'd run lilo before rebooting, and then I can boot with a new
Is there something similar I need to do when using grub?
Is my problem even related to grub?
I've run update-grub when booting _back into my old 2.4_ kernel.. I
think this just updates the menu.lst file right?
I've read that Debian kernels usually need to be built with the
'--initrd' flag. This is something I've never practiced before and
have not run into any problems regardless.
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