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SubjectRe: Kernel Panic + Intel SATA
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On Wed, 26 Oct 2005, Marcio Oliveira wrote:

> linux-os (Dick Johnson) wrote:
>
>> On Wed, 26 Oct 2005, [iso-8859-1] Márcio Oliveira wrote:
>>
>>
>>
>>> Hi there!
>>>
>>> I have a IBM ThinkPad t43 running Fedora Core Linux 4 and kernel
>>> 2.6.12-1.146_FC4. I recompiled the kernel (2.6.13.4 - kernel.org) and I
>>> am geting the following message when the computer boots:
>>>
>>> Creating root device
>>> mkrootdev: label / not found
>>>
>>>
>>
>> This label was no good it needs to be /dev/sda6 from your fstab
>> You will need to put the device name in /boot/*/*.conf lilo or
>> grub instead on "label"
>>
>>
> yeah, I try to boot it using "root=/dev/sda6" instead "root=LABEL=/"
> parameter, but the system still not booting...
>
>>
>>
>>> Mounting root filesystem
>>> mount: error 2 mouting ext3
>>>
>>>
>>
>> Error 2 == ENOENT
>>
>>
>
> ENOENT? What it means?

Was 'no such file', perhaps the device file was not created by `mkrootdev`
because it errored out???

This is all 'Fedora' stuff, not Linux stuff. You should upgrade
your 'mkinitrd' (or rewrite it) so it doesn't use Fedora-specific
stuff if you intend to install an un-patched kernel.


>
>>
>>
>>> Switchimg to new root
>>> ERROR opening /dev/console!!!!: 2
>>> switchroot: mount failed: 22
>>>
>>>
>>
>> Error 22 = EINVAL
>>
>>
>
> EINVAL? What it means?
>

Means 'wrong value'. Probably because the new root wasn't
mounted.

[SNIPPED...]


In the meantime do:

mknod /dev/sda6 b 8 6
mknod /dev/root b 8 6

.. in your initrd script. This should get you past the errors.


>>> mount -o mode=0755 -t tmpfs /dev /dev
>>> mknod /dev/console c 5 1
>>> mknod /dev/null c 1 3
>>> mknod /dev/zero c 1 5
>>> mkdir /dev/pts
>>> mkdir /dev/shm
>>> echo Starting udev
>>> /sbin/udevstart
>>> echo -n "/sbin/hotplug" > /proc/sys/kernel/hotplug
>>> echo "Loading scsi_mod.ko module"
>>> insmod /lib/scsi_mod.ko
>>> echo "Loading sd_mod.ko module"
>>> insmod /lib/sd_mod.ko
>>> echo "Loading libata.ko module"
>>> insmod /lib/libata.ko
>>> echo "Loading ata_piix.ko module"
>>> insmod /lib/ata_piix.ko
>>> echo "Loading dm-mod.ko module"
>>> insmod /lib/dm-mod.ko
>>> sleep 10
>>> /sbin/fdisk -l
>>> sleep 10
>>> /sbin/udevstart
>>> echo Creating root device
>>> mkrootdev /dev/root
>>> echo Mounting root filesystem
>>> mount -o defaults --ro -t ext3 /dev/root /sysroot
>>> echo Switching to new root
>>> switchroot --movedev /sysroot

Cheers,
Dick Johnson
Penguin : Linux version 2.6.13.4 on an i686 machine (5589.55 BogoMips).
Warning : 98.36% of all statistics are fiction.

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