« Return to Thread: Grub causing kernel panic? - ThinkPad T40 - new install
Re: Grub causing kernel panic? - ThinkPad T40 - new install
by Ladislav Laska
::
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Andrew is right, this is wrong list. Anyway, you should check that
modules for your IDE controller are loaded in initrd (or compiled into
kernel).
You can do this by selecting the second choice in grub (rescue). It
will boot into busybox (a very basic shell) and you should be (un)able
to mount filesystems. I don't know what exactly will busybox do for
your, but maybe you will need to create device node by hand.
For more informations, please write to gentoo-user list, or contact me
personally (but NOT this list, unless this is gentoo-installer's
problem).
On 11/3/06, Greg Morin <gpmorin@...> wrote:
> Good day,
>
> I've installed (several times) on a ThinkPad T-40, trying both manual
> kernel config and genkernel. I followed the online manual explicitly (I
> think). The machine is currently loaded with the manual config. Either way,
> the results are similar.
>
> Grub shows the two boot options, then begins loading the OS.
>
> The machine begins to boot, starts loading modules, then kernel panics:
> VFS:Cannot open root device "hda3" or unknown-block(0,0)
> Please append a correct "root=" boot option
> Kernel panic - not syncing: VFS: Unable to mount root fs on
> unknown-block(0,0)
>
> There is a single fixed disk:
> Device Boot Size System Filesystem Mount
> point
> ======= ==== ===== ========= ========= =========
> /dev/hda1 * 32M Linux ext2
> /boot
> /dev/hda2 3G Linux swap none
> none
> /dev/hda3 ~71G Linux ext3
> /
>
> I am able to mount and use these partitions after booting from CD.
> /etc/fstab (/mnt/gentoo/etc/fstab when booted from disk) looks good.
>
> Filesystems ext2 and ext3 are compiled into the kernel.
>
> Grub details:
> device.map
> (hd0) /dev/hda
> grub.conf
> default 0
> timeout 5
> splashimage=(hd0,0)/boot/grub/spash.xpm.gz
>
> title=Gentoo Linux 2.6.17-r8
> root (hd0,0)
> kernel /boot/kernel-2.6.17-gentoo-r8 root=/dev/hda3
>
> title=Gentoo Linux 2.6.17-r8 (rescue)
> root(hd0,0)
> kernel /boot/kernel-2.6.17-gentoo-r8 root=/dev/hda3 init=/bin/bb
>
> I used grub-install /dev/hda with no errors. I've played around with the
> "root=" entry, but to no avail - not sure I'm understanding this one...
>
> The kernel image appears to be valid, with no typos in filename/grub
> entries.
>
> Any ideas? Seems that the kernel begins to load, but can't mount the root
> filesystem?
>
> Thank-you for any pointers.
>
>
> --
>
> Gpm
> The Morins of Plantsville
--
Regards Ladislav Laska
S pozdravem Ladislav Laska
--
gentoo-installer@... mailing list
modules for your IDE controller are loaded in initrd (or compiled into
kernel).
You can do this by selecting the second choice in grub (rescue). It
will boot into busybox (a very basic shell) and you should be (un)able
to mount filesystems. I don't know what exactly will busybox do for
your, but maybe you will need to create device node by hand.
For more informations, please write to gentoo-user list, or contact me
personally (but NOT this list, unless this is gentoo-installer's
problem).
On 11/3/06, Greg Morin <gpmorin@...> wrote:
> Good day,
>
> I've installed (several times) on a ThinkPad T-40, trying both manual
> kernel config and genkernel. I followed the online manual explicitly (I
> think). The machine is currently loaded with the manual config. Either way,
> the results are similar.
>
> Grub shows the two boot options, then begins loading the OS.
>
> The machine begins to boot, starts loading modules, then kernel panics:
> VFS:Cannot open root device "hda3" or unknown-block(0,0)
> Please append a correct "root=" boot option
> Kernel panic - not syncing: VFS: Unable to mount root fs on
> unknown-block(0,0)
>
> There is a single fixed disk:
> Device Boot Size System Filesystem Mount
> point
> ======= ==== ===== ========= ========= =========
> /dev/hda1 * 32M Linux ext2
> /boot
> /dev/hda2 3G Linux swap none
> none
> /dev/hda3 ~71G Linux ext3
> /
>
> I am able to mount and use these partitions after booting from CD.
> /etc/fstab (/mnt/gentoo/etc/fstab when booted from disk) looks good.
>
> Filesystems ext2 and ext3 are compiled into the kernel.
>
> Grub details:
> device.map
> (hd0) /dev/hda
> grub.conf
> default 0
> timeout 5
> splashimage=(hd0,0)/boot/grub/spash.xpm.gz
>
> title=Gentoo Linux 2.6.17-r8
> root (hd0,0)
> kernel /boot/kernel-2.6.17-gentoo-r8 root=/dev/hda3
>
> title=Gentoo Linux 2.6.17-r8 (rescue)
> root(hd0,0)
> kernel /boot/kernel-2.6.17-gentoo-r8 root=/dev/hda3 init=/bin/bb
>
> I used grub-install /dev/hda with no errors. I've played around with the
> "root=" entry, but to no avail - not sure I'm understanding this one...
>
> The kernel image appears to be valid, with no typos in filename/grub
> entries.
>
> Any ideas? Seems that the kernel begins to load, but can't mount the root
> filesystem?
>
> Thank-you for any pointers.
>
>
> --
>
> Gpm
> The Morins of Plantsville
--
Regards Ladislav Laska
S pozdravem Ladislav Laska
--
gentoo-installer@... mailing list
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