[gentoo-user] Error booting new kernel

[gentoo-user] Error booting new kernel

[Marko Kocić]

I have a quastion related to vanilla-sources kernel.

After upgrading vanilla-sources from 2.6.26 to 2.6.28_rc2 I am not
able to boot anymore. I tried playing with menuconfig couple of times,
but couldn't find what I have to change in order to make it work
again.

The error message while booting is like this:

Using IPI shortcut mode
BIOS EDD facility v 0.16 2004-Jul-25 1 devices found
VFS: Cannot open root device "307" on unknown-block(3,7)
Please append a correct "root=" boot option; here are the available
partitions:
Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-
block(3,7)


Note that in my lilo.conf I have root=/dev/hda7 line for all kernels.

Thanks for any suggestion,
Marko

Re: [gentoo-user] Error booting new kernel

[deface]

Marko Kocić wrote:
> I have a quastion related to vanilla-sources kernel.
>
> After upgrading vanilla-sources from 2.6.26 to 2.6.28_rc2 I am not
> able to boot anymore. I tried playing with menuconfig couple of times,
> but couldn't find what I have to change in order to make it work
> again.
>
> The error message while booting is like this:
>
> Using IPI shortcut mode
> BIOS EDD facility v 0.16 2004-Jul-25 1 devices found
> VFS: Cannot open root device "307" on unknown-block(3,7)
> Please append a correct "root=" boot option; here are the available
> partitions:
> Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-
> block(3,7)
>
>
> Note that in my lilo.conf I have root=/dev/hda7 line for all kernels.
>
> Thanks for any suggestion,
> Marko
>
>   
The 2 main things to look for are File System support & chipset. did you 
copy your
old .config and run a make oldconfig ? Shouldn't have been much to 
modify, if any.

deface

[gentoo-user] Re: Error booting new kernel

[Nikos Chantziaras]

Marko Kocić wrote:
> I have a quastion related to vanilla-sources kernel.
> 
> After upgrading vanilla-sources from 2.6.26 to 2.6.28_rc2 I am not
> able to boot anymore. I tried playing with menuconfig couple of times,
> but couldn't find what I have to change in order to make it work
> again.
> 
> The error message while booting is like this:
> 
> Using IPI shortcut mode
> BIOS EDD facility v 0.16 2004-Jul-25 1 devices found
> VFS: Cannot open root device "307" on unknown-block(3,7)
> Please append a correct "root=" boot option; here are the available
> partitions:
> Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-
> block(3,7)
> 
> 
> Note that in my lilo.conf I have root=/dev/hda7 line for all kernels.

My guess is that you would need to specify /dev/sda7 instead.

Re: [gentoo-user] Error booting new kernel

[James]

On Fri, October 31, 2008 10:41 am, Marko Kocić wrote:
> I have a quastion related to vanilla-sources kernel.
>
>
> After upgrading vanilla-sources from 2.6.26 to 2.6.28_rc2 I am not
> able to boot anymore. I tried playing with menuconfig couple of times, but
> couldn't find what I have to change in order to make it work again.
>
> The error message while booting is like this:
>
>
> Using IPI shortcut mode
> BIOS EDD facility v 0.16 2004-Jul-25 1 devices found
> VFS: Cannot open root device "307" on unknown-block(3,7)
> Please append a correct "root=" boot option; here are the available
> partitions:
> Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-
> block(3,7)
>
>
> Note that in my lilo.conf I have root=/dev/hda7 line for all kernels.
>
>
> Thanks for any suggestion,
> Marko

That filesystem support is not compiled in the kernel?

Re: [gentoo-user] Error booting new kernel

[Dirk Heinrichs]

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Am Freitag 31 Oktober 2008 16:04:54 schrieb ext James:

> > Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-
> > block(3,7)
>
> That filesystem support is not compiled in the kernel?

How do you know? The error is about block devices, not filesystems.

Bye...

	Dirk
-- 
Dirk Heinrichs          | Tel:  +49 (0)162 234 3408
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Re: [gentoo-user] Error booting new kernel

[Dirk Heinrichs]

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Am Freitag 31 Oktober 2008 15:41:00 schrieb ext Marko Kocić:

> The error message while booting is like this:
>
> Using IPI shortcut mode
> BIOS EDD facility v 0.16 2004-Jul-25 1 devices found
> VFS: Cannot open root device "307" on unknown-block(3,7)
> Please append a correct "root=" boot option; here are the available
> partitions:
> Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-
> block(3,7)
>
>
> Note that in my lilo.conf I have root=/dev/hda7 line for all kernels.

Are you sure that all drivers (chipset, disc) needed for booting are compiled 
into the kernel? Please post your .config + lspci output.

Bye...

	Dirk
-- 
Dirk Heinrichs          | Tel:  +49 (0)162 234 3408
Configuration Manager   | Fax:  +49 (0)211 47068 111
Capgemini Deutschland   | Mail: dirk.heinrichs@capgemini.com
Wanheimerstraße 68      | Web:  http://www.capgemini.com
D-40468 Düsseldorf      | ICQ#: 110037733
GPG Public Key C2E467BB | Keyserver: wwwkeys.pgp.net


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Re: [gentoo-user] Error booting new kernel

[David Relson]

On Mon, 3 Nov 2008 08:51:01 +0100
Dirk Heinrichs wrote:

> Am Freitag 31 Oktober 2008 15:41:00 schrieb ext Marko Kocić:
> 
> > The error message while booting is like this:
> >
> > Using IPI shortcut mode
> > BIOS EDD facility v 0.16 2004-Jul-25 1 devices found
> > VFS: Cannot open root device "307" on unknown-block(3,7)
> > Please append a correct "root=" boot option; here are the available
> > partitions:
> > Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-
> > block(3,7)
> >
> >
> > Note that in my lilo.conf I have root=/dev/hda7 line for all
> > kernels.
> 
> Are you sure that all drivers (chipset, disc) needed for booting are
> compiled into the kernel? Please post your .config + lspci output.
> 
> Bye...
> 
> 	Dirk

Have you tried root=/dev/sda7, i.e. "s" rather than "h", in lilo?  My
understanding is that disk driver changes in the kernel have resulted
in the replacement of IDE subsystem drivers with a "universal" (SCSI
based) subsystem.  A side effect of this is device name changes,
notably /dev/hdX to /dev/sdX.  I'm not sure that this is 100% accurate
because I don't track kernel changes as closely as some folks.

HTH,

David

Re: [gentoo-user] Error booting new kernel

[Dirk Heinrichs]

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Am Montag 03 November 2008 13:07:11 schrieb ext David Relson:

> Have you tried root=/dev/sda7, i.e. "s" rather than "h", in lilo?  My
> understanding is that disk driver changes in the kernel have resulted
> in the replacement of IDE subsystem drivers with a "universal" (SCSI
> based) subsystem.

Not replaced, the old one is still there and one has to select the new SCSI 
based drivers explicitely.

> A side effect of this is device name changes,
> notably /dev/hdX to /dev/sdX.

That's true, indeed.

Bye...

	Dirk
-- 
Dirk Heinrichs          | Tel:  +49 (0)162 234 3408
Configuration Manager   | Fax:  +49 (0)211 47068 111
Capgemini Deutschland   | Mail: dirk.heinrichs@capgemini.com
Wanheimerstraße 68      | Web:  http://www.capgemini.com
D-40468 Düsseldorf      | ICQ#: 110037733
GPG Public Key C2E467BB | Keyserver: wwwkeys.pgp.net


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