[gentoo-user] Boot Problems: /dev/sda3 is not a valid root device

[gentoo-user] Boot Problems: /dev/sda3 is not a valid root device

[Michael Shaw]

Hi all,

I just tried to install Gentoo 2005.1 on a computer with one 9GB SCSI.  
When booting, I get the following error:

~~~~~~~~~~~~~~~~~~~~~
Block device /dev/sda3 is not a valid root device
The root block device is unspecified or not detected
~~~~~~~~~~~~~~~~~~~~~

I tried other block devices (dev/sda1 etc) to no avail

My grub.conf.is as follows:
~~~~~~~~~~~~~~~~~~~~~
default 0
timeout 30
splashimage=(hd0,0)/grub/splash.xpm.gz

title=Woohoo Gentoo
root (hd0,0)
kernel /kernel-genkernel-x86-2.6.13-gentoo-r5 root=/dev/ram0 
init=/linuxrc ramdisk=8192 real_root=/dev/sda3 udev
initrd /initramfs-genkernel-x86-2.6.13-gentoo-r5
~~~~~~~~~~~~~~~~~~~~~

My fstab is as follows:
~~~~~~~~~~~~~~~~~~~~~
   
/dev/sda1        /boot            ext2            noauto,noatime        1 2
/dev/sda3        /                   ext3            noatime          
         0 1
/dev/sda2        none            swap            sw                    
      0 0
/dev/hdc        /mnt/cdrom    iso9660        noauto,ro                0 0
#/dev/fd0       /mnt/floppy    auto            noauto                    
   0 0

   
proc            /proc                proc        defaults    0 0
   
shm            /dev/shm            tmpfs        nodev,nosuid,noexec    0 0
~~~~~~~~~~~~~~~~~~~~~

Hope someone can help, as it's getting awfully irritating using a CD-ROM 
to boot the system (which isn't necessary very often).

Mike
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Re: [gentoo-user] Boot Problems: /dev/sda3 is not a valid root device

[Neil Bothwick]

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On Wed, 09 Nov 2005 10:00:49 -0800, Michael Shaw wrote:

> I just tried to install Gentoo 2005.1 on a computer with one 9GB SCSI.  
> When booting, I get the following error:
> 
> ~~~~~~~~~~~~~~~~~~~~~
> Block device /dev/sda3 is not a valid root device
> The root block device is unspecified or not detected
> ~~~~~~~~~~~~~~~~~~~~~

Do you have the drivers for your SCSI controller compiled into the
kernel, not as modules.


-- 
Neil Bothwick

There are two standards for anything...
One for the U.S. and one for the rest of the world.

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Re: [gentoo-user] Boot Problems: /dev/sda3 is not a valid root device

[Richard Fish]

On 11/9/05, Michael Shaw <mshaw@dowco.com> wrote:
> Hi all,
>
> I just tried to install Gentoo 2005.1 on a computer with one 9GB SCSI.
> When booting, I get the following error:
>
> ~~~~~~~~~~~~~~~~~~~~~
> Block device /dev/sda3 is not a valid root device
> The root block device is unspecified or not detected
> ~~~~~~~~~~~~~~~~~~~~~

Most likely you need to reconfigure and rebuild your kernel with SCSI
disk support and the driver for your SCSI controller compiled into the
kernel, not as a module (=Y, not =M).

-Richard

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Re: [gentoo-user] Boot Problems: /dev/sda3 is not a valid root device

[Michael Shaw]

Neil Bothwick wrote:

>On Wed, 09 Nov 2005 10:00:49 -0800, Michael Shaw wrote:
>
>  
>
>>I just tried to install Gentoo 2005.1 on a computer with one 9GB SCSI.  
>>When booting, I get the following error:
>>
>>~~~~~~~~~~~~~~~~~~~~~
>>Block device /dev/sda3 is not a valid root device
>>The root block device is unspecified or not detected
>>~~~~~~~~~~~~~~~~~~~~~
>>    
>>
>
>Do you have the drivers for your SCSI controller compiled into the
>kernel, not as modules.
>
>
>  
>
Not to the best of my knowledge.  I guess that would do it.  I just 
assumed they would be there, in the genkernel.  I'll give it a whirl and 
see what I can find.

Thanks
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gentoo-user@gentoo.org mailing list

Re: [gentoo-user] Boot Problems: /dev/sda3 is not a valid root device

[Michael Shaw]

Richard Fish wrote:

>On 11/9/05, Michael Shaw <mshaw@dowco.com> wrote:
>  
>
>>Hi all,
>>
>>I just tried to install Gentoo 2005.1 on a computer with one 9GB SCSI.
>>When booting, I get the following error:
>>
>>~~~~~~~~~~~~~~~~~~~~~
>>Block device /dev/sda3 is not a valid root device
>>The root block device is unspecified or not detected
>>~~~~~~~~~~~~~~~~~~~~~
>>    
>>
>
>Most likely you need to reconfigure and rebuild your kernel with SCSI
>disk support and the driver for your SCSI controller compiled into the
>kernel, not as a module (=Y, not =M).
>
>-Richard
>
>  
>
Thanks.  I'll trt it.  Have to wait for an opportunity to reboot the 
machine to see how well it works

Mike
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