[gentoo-user] New to Gentoo. Having trouble getting it started for the first time

[gentoo-user] New to Gentoo. Having trouble getting it started for the first time

[Jon M]

Hey everyone,

I'm new to Gentoo, but not to Linux.  For some reason I seem to be 
struggling to get it booted after installing.  Basically my setup is I 
have 3 partitions as follows: /dev/hda1 (32MB EXT3) used as /boot. 
/dev/hda2 (512MB) for swap, and the rest is on /dev/hda3 (ReiserFS).

The contents of my /boot/grub/grub.conf is as follows:

default 0
timeout 30
splashimage=(hd0,0)/boot/grub/splash.xpm.gz

title=Gentoo Linux 2.6.17-r8
root (hd0,0)
kernel /kernel-2.6.17-gentoo-r8 root=/dev/hda3

Everything look normal so far?  Well when I reboot, and select Gentoo on 
the GRUB list, it starts to load and then I get the following error:

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)


Any help anyone could provide would be greatly appreciated!  Thanks in 
advance!
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Re: [gentoo-user] New to Gentoo. Having trouble getting it started for the first time

[Richard Fish]

On 11/10/06, Jon M <gentoo@net-xero.net> wrote:
> The contents of my /boot/grub/grub.conf is as follows:

[snip]

> Everything look normal so far?

Yep.

> VFS: Cannot open root device "hda3" or unknown-block(0,0)

This is not a problem with your grub configuration.  The
"unknown-block(0,0)" tells me that the kernel cannot find a device for
hda3.  You probably missed either the device driver needed for your
IDE chipset, or IDE hard drive support in your kernel configuration.

If you need help figuring out what you need here, post the outputs of:

grep -v -e "^#" -e "^$" /usr/src/linux/.config
lspci -v

HTH,
-Richard
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Re: [gentoo-user] New to Gentoo. Having trouble getting it started for the first time

[Roger Mason]

Jon M <gentoo@net-xero.net> writes:

> I'm new to Gentoo, but not to Linux.  For some reason I seem to be
> struggling to get it booted after installing.  Basically my setup is I
> have 3 partitions as follows: /dev/hda1 (32MB EXT3) used as
> /boot. /dev/hda2 (512MB) for swap, and the rest is on /dev/hda3
> (ReiserFS).
>
> The contents of my /boot/grub/grub.conf is as follows:
>
> default 0
> timeout 30
> splashimage=(hd0,0)/boot/grub/splash.xpm.gz
>
> title=Gentoo Linux 2.6.17-r8
> root (hd0,0)
> kernel /kernel-2.6.17-gentoo-r8 root=/dev/hda3
>
> Everything look normal so far?  Well when I reboot, and select Gentoo
> on the GRUB list, it starts to load and then I get the following error:
>
> 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)

Did you build ReiserFS into the kernel? i.e. not as a module.

Roger Mason

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Re: [gentoo-user] New to Gentoo. Having trouble getting it started for the first time

[Norman Rieß]

Jon M wrote:
> Hey everyone,
>
> I'm new to Gentoo, but not to Linux.  For some reason I seem to be
> struggling to get it booted after installing.  Basically my setup is I
> have 3 partitions as follows: /dev/hda1 (32MB EXT3) used as /boot.
> /dev/hda2 (512MB) for swap, and the rest is on /dev/hda3 (ReiserFS).
>
> The contents of my /boot/grub/grub.conf is as follows:
>
> default 0
> timeout 30
> splashimage=(hd0,0)/boot/grub/splash.xpm.gz
>
> title=Gentoo Linux 2.6.17-r8
> root (hd0,0)
> kernel /kernel-2.6.17-gentoo-r8 root=/dev/hda3
>
> Everything look normal so far?  Well when I reboot, and select Gentoo
> on the GRUB list, it starts to load and then I get the following error:
>
> 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)
>
>
> Any help anyone could provide would be greatly appreciated!  Thanks in
> advance!
Please try this:

intead of
kernel /kernel-2.6.17-gentoo-r8 root=/dev/hda3

give
kernel (hd0,0)/kernel-2.6.17-gentoo-r8 root=/dev/hda3

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Re: [gentoo-user] New to Gentoo. Having trouble getting it started for the first time

[Norman Rieß]

Norman Rieß schrieb:
> Jon M wrote:
>   
>> Hey everyone,
>>
>> I'm new to Gentoo, but not to Linux.  For some reason I seem to be
>> struggling to get it booted after installing.  Basically my setup is I
>> have 3 partitions as follows: /dev/hda1 (32MB EXT3) used as /boot.
>> /dev/hda2 (512MB) for swap, and the rest is on /dev/hda3 (ReiserFS).
>>
>> The contents of my /boot/grub/grub.conf is as follows:
>>
>> default 0
>> timeout 30
>> splashimage=(hd0,0)/boot/grub/splash.xpm.gz
>>
>> title=Gentoo Linux 2.6.17-r8
>> root (hd0,0)
>> kernel /kernel-2.6.17-gentoo-r8 root=/dev/hda3
>>
>> Everything look normal so far?  Well when I reboot, and select Gentoo
>> on the GRUB list, it starts to load and then I get the following error:
>>
>> 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)
>>
>>
>> Any help anyone could provide would be greatly appreciated!  Thanks in
>> advance!
>>     
> Please try this:
>
> intead of
> kernel /kernel-2.6.17-gentoo-r8 root=/dev/hda3
>
> give
> kernel (hd0,0)/kernel-2.6.17-gentoo-r8 root=/dev/hda3
>
>   
Or i should simply read better... sorry.
Forget the rubbish i wrote...
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Re: [gentoo-user] New to Gentoo. Having trouble getting it started for the first time

[Jon M]

Richard Fish wrote:
> On 11/10/06, Jon M <gentoo@net-xero.net> wrote:
>> The contents of my /boot/grub/grub.conf is as follows:
> 
> [snip]
> 
>> Everything look normal so far?
> 
> Yep.
> 
>> VFS: Cannot open root device "hda3" or unknown-block(0,0)
> 
> This is not a problem with your grub configuration.  The
> "unknown-block(0,0)" tells me that the kernel cannot find a device for
> hda3.  You probably missed either the device driver needed for your
> IDE chipset, or IDE hard drive support in your kernel configuration.
> 
> If you need help figuring out what you need here, post the outputs of:
> 
> grep -v -e "^#" -e "^$" /usr/src/linux/.config
> lspci -v
> 
> HTH,
> -Richard

Hi Richard,

I think you are correct.  I just scanned through the output of those two 
commands and I believe I may have missed the IDE chipset.  I'm going to 
try enabling it and see if that helps.

As for the other two responses, I did compile ReiserFS directly into the 
kernel, and also tried changing the kernel line in grub.conf to read 
kernel (hd0,0)/kernel-2.6.17-gentoo-r8 root=/dev/hda3 with little success.

Hopefully this will work though.

Thanks again!
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Re: [gentoo-user] New to Gentoo. Having trouble getting it started for the first time

[Rafael Barrera Oro]

Jon M wrote:

> Hey everyone,
>
> I'm new to Gentoo, but not to Linux.  For some reason I seem to be 
> struggling to get it booted after installing.  Basically my setup is I 
> have 3 partitions as follows: /dev/hda1 (32MB EXT3) used as /boot. 
> /dev/hda2 (512MB) for swap, and the rest is on /dev/hda3 (ReiserFS).
>
> The contents of my /boot/grub/grub.conf is as follows:
>
> default 0
> timeout 30
> splashimage=(hd0,0)/boot/grub/splash.xpm.gz
>
> title=Gentoo Linux 2.6.17-r8
> root (hd0,0)
> kernel /kernel-2.6.17-gentoo-r8 root=/dev/hda3
>
> Everything look normal so far?  Well when I reboot, and select Gentoo 
> on the GRUB list, it starts to load and then I get the following error:
>
> 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)
>
>
> Any help anyone could provide would be greatly appreciated!  Thanks in 
> advance!


Hello! here is my grub.conf in order to compare, the only thing that i 
notice is missing is the initrd line, i am no Linux expert either so 
maybe that is not a must have. Anyway, my machine works, so i hope you 
can comparte this file to yours and find out whats missing, hope it helps.

default 0
timeout 30
splashimage=(hd0,0)/grub/splash.xpm.gz
title=Gentoo Linux
root (hd0,0)
kernel /kernel-genkernel-x86_64-2.6.17-gentoo-r5 root=/dev/ram0 
init=/linuxrc ramdisk=8192 real_root=/dev/hda3
initrd /initramfs-genkernel-x86_64-2.6.17-gentoo-r5
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Re: [gentoo-user] New to Gentoo. Having trouble getting it started for the first time

[Jon M]

Rafael Barrera Oro wrote:
> Hello! here is my grub.conf in order to compare, the only thing that i 
> notice is missing is the initrd line, i am no Linux expert either so 
> maybe that is not a must have. Anyway, my machine works, so i hope you 
> can comparte this file to yours and find out whats missing, hope it helps.
> 
> default 0
> timeout 30
> splashimage=(hd0,0)/grub/splash.xpm.gz
> title=Gentoo Linux
> root (hd0,0)
> kernel /kernel-genkernel-x86_64-2.6.17-gentoo-r5 root=/dev/ram0 
> init=/linuxrc ramdisk=8192 real_root=/dev/hda3
> initrd /initramfs-genkernel-x86_64-2.6.17-gentoo-r5


Hi Rafael,

Thanks for your reply :)

I actually managed to get it up and running.  Turns out my grub.conf was 
good, but was missing my IDE chipset in the kernel.  With a bit of 
playing around I managed to get it up and running.

Thanks again for trying to help though, I appreciate it!
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