[gentoo-user] Why can't kernel-2.6.19-gentoo-r5 see my root partition?

[gentoo-user] Why can't kernel-2.6.19-gentoo-r5 see my root partition?

[Michael Sullivan]

I upgraded my kernel to 2.6.19-gentoo-r6 this morning.  I used
genkernel.  I followed these steps:

Deleted the /usr/src/linux symlink and recreated it point
to /usr/src/2.6.19-gentoo-r5
zcat /proc/config.gz > /usr/share/genkernel/x86/kernel-config-2.6
genkernel all

After it successfully built, I opened up my /boot/grub/grub.conf file in
vim and copied the entry lines for the old kernel I was using
(2.6.18-gentoo-r6 - also created with genkernel) and changed the numbers
to reflect the new kernel on the title, kernel, and initrd lines.
However when I attempt to boot up with the new kernel, it goes through
its usual device checks, and then right when it should say "Booting
initramfs-{xxxx}", it says "/dev/sda6 is not a suitable root
device." (or something like that) and offers me either a chance to enter
the root device, or a shell.  I asked for the shell.  I did ls and saw a
directory structure seemingly similar to my / on my root partition, but
when I did ls /dev I didn't see any sda devices (or an other s* devices
for that matter).  What's gone wrong, and what do I do to fix it?  Below
is my /boot/grub/grub.conf:

camille ~ # cat /boot/grub/grub.conf
default 0
timeout 30
splashimage=(hd0,1)/grub/splash.xpm.gz

title=Gentoo 2.6.19-r5
root (hd0,1)
kernel /kernel-genkernel-x86-2.6.19-gentoo-r5 real_root=/dev/sda6 udev
initrd /initramfs-genkernel-x86-2.6.19-gentoo-r5

title=Gentoo 2.6.18-r6
root (hd0,1)
kernel /kernel-genkernel-x86-2.6.18-gentoo-r6 real_root=/dev/sda6 udev
initrd /initramfs-genkernel-x86-2.6.18-gentoo-r6

title=Gentoo 2.6.18-r4
root (hd0,1)
kernel /kernel-genkernel-x86-2.6.18-gentoo-r4 real_root=/dev/sda6 udev
initrd /initramfs-genkernel-x86-2.6.18-gentoo-r4

title=Linux 2.6.11.12
root (hd0,1)
kernel /vmlinuz-2.6.11.12 real_root=/dev/sda6 udev
initrd /initrd-2.6.11.12.img

title=Windows XP
rootnoverify (hd0,0)
makeactive
chainloader +1




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Re: [gentoo-user] Why can't kernel-2.6.19-gentoo-r5 see my root partition?

[Joe Menola]

On Saturday 03 February 2007 11:06 am, Michael Sullivan wrote:
> I upgraded my kernel to 2.6.19-gentoo-r6 this morning.  I used
> genkernel.  I followed these steps:

In the interest of confusion...the .19 kernel sees all hdd's as /dev/sdx 
including ide. 
Your sda6 is most likely sdb6 or some other variant.

-jm

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Re: [gentoo-user] Why can't kernel-2.6.19-gentoo-r5 see my root partition?

[Michael Sullivan]

On Sat, 2007-02-03 at 11:20 -0600, Joe Menola wrote:
> On Saturday 03 February 2007 11:06 am, Michael Sullivan wrote:
> > I upgraded my kernel to 2.6.19-gentoo-r6 this morning.  I used
> > genkernel.  I followed these steps:
> 
> In the interest of confusion...the .19 kernel sees all hdd's as /dev/sdx 
> including ide. 
> Your sda6 is most likely sdb6 or some other variant.
> 
> -jm
> 

But there were no /dev/sxx files in that /dev directory in the shell
when I tried to boot into the new kernel.

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Re: [gentoo-user] Why can't kernel-2.6.19-gentoo-r5 see my root partition?

[Graham Murray]

Joe Menola <menola@sbcglobal.net> writes:

> In the interest of confusion...the .19 kernel sees all hdd's as /dev/sdx 
> including ide. 

But only if you configure it so that libata handles the ide drives. I
believe that the default is to have pata handled by the IDE drivers
and sata by libata
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Re: [gentoo-user] Why can't kernel-2.6.19-gentoo-r5 see my root partition? [SOLVED]

[Dan Farrell]

On Sat, 03 Feb 2007 14:29:39 -0600
Michael Sullivan <michael@espersunited.com> wrote:

> Does anyone know why the
> module names were changed between 2.6.18 and 2.6.19?

the developers probably do.  anyway, you should make it a practice to
use make oldconfig probably as it's the reason the developers feel free
to do so.
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Re: [gentoo-user] Why can't kernel-2.6.19-gentoo-r5 see my root partition? [SOLVED]

[Michael Sullivan]

On Sat, 2007-02-03 at 19:44 -0600, Dan Farrell wrote:
> On Sat, 03 Feb 2007 14:29:39 -0600
> Michael Sullivan <michael@espersunited.com> wrote:
> 
> > Does anyone know why the
> > module names were changed between 2.6.18 and 2.6.19?
> 
> the developers probably do.  anyway, you should make it a practice to
> use make oldconfig probably as it's the reason the developers feel free
> to do so.

Genkernel DID use oldconfig though.  I saw it in the terminal printout
when I ran it this morning.

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Re: [gentoo-user] Why can't kernel-2.6.19-gentoo-r5 see my root partition?

[Neil Walker]

Joe Menola wrote:
> In the interest of confusion...the .19 kernel sees all hdd's as /dev/sdx 
> including ide.

That is totally untrue . :( All of my machines are using kernel 2.6.19 
and they all see the hard disks as /dev/hdx apart from the one that is 
actually using SATA.



Neil

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Re: [gentoo-user] Why can't kernel-2.6.19-gentoo-r5 see my root partition?

[Sigfrido V. Ortiz C.]

Due to this issue, Why someone have to upgrade his kernel from .18 to 
.19, there are IMPORTANT reazon to do that?
I'm not computer professional, Gentoo is just a hobby for me, as well as 
my desktop and laptop computer and also Gentoo never stop to works 
without a clear reason as done by WINDOW$,  I never saw a blue screen 
mean while I'm working in Gentoo, so I stopped to use WINDOWS last 2004, 
but the questions is:

Why and when to UPGRADE the kernel?

I stopped at 2.6.18-gentoo-r2, because each change means some things out 
of control, but each time there is somthing new to learn.

Fortunatelly we have a very good documentation on line an also good 
friends in this kind of mailing list to solve any trouble.
Any comments?

Sigfrido

neil@ep.mine.nu wrote:

> Joe Menola wrote:
>
>> In the interest of confusion...the .19 kernel sees all hdd's as 
>> /dev/sdx including ide.
>
>
> That is totally untrue . :( All of my machines are using kernel 2.6.19 
> and they all see the hard disks as /dev/hdx apart from the one that is 
> actually using SATA.
>
>
>
> Neil
>
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Re: [gentoo-user] Why can't kernel-2.6.19-gentoo-r5 see my root partition?

[b.n.]

Sigfrido V. Ortiz C. ha scritto:

> Why and when to UPGRADE the kernel?

Basically, when you need to.
I lived with 2.6.16 until two weeks ago, and before 2.6.16 I lived with
2.6.12 much longer.

If you don't feel the need of a new kernel, I don't see any reason to
upgrade.

I usually upgrade when something needs it, when I feel it would be an
improvement or, more simply, I take the occasion to upgrade when I have
to recompile: but it's just me. I did upgrade to 2.6.18 just because I
upgraded to gcc 4.1 and having to recompile the kernel, I also upgraded,
but I could have happily lived recompiling 2.6.16.

m.
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Re: [gentoo-user] Why can't kernel-2.6.19-gentoo-r5 see my root partition?

[Bruce Munro]

b.n. wrote:
> Sigfrido V. Ortiz C. ha scritto:
> 
>> Why and when to UPGRADE the kernel?
> 
> Basically, when you need to.
> I lived with 2.6.16 until two weeks ago, and before 2.6.16 I lived with
> 2.6.12 much longer.
> 
> If you don't feel the need of a new kernel, I don't see any reason to
> upgrade.

A famous British mountaineer, George Mallory, who made several attempts 
on Mt. Everest, and was eventually killed on the mountain, was once 
asked why he was so determined to climb the peak. His answer? "Because 
it is there."

Surely a very similar argument applies to Gentoo users and new Linux 
kernels! ;-)

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Re: [gentoo-user] Why can't kernel-2.6.19-gentoo-r5 see my root partition?

[b.n.]

Bruce Munro ha scritto:

> A famous British mountaineer, George Mallory, who made several attempts
> on Mt. Everest, and was eventually killed on the mountain, was once
> asked why he was so determined to climb the peak. His answer? "Because
> it is there."
> 
> Surely a very similar argument applies to Gentoo users and new Linux
> kernels! ;-)

Yeah, I know of Gentooist friends that are just so :)
But remember he was killed on the mountain...

m.


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Re: [gentoo-user] Why can't kernel-2.6.19-gentoo-r5 see my root partition?

[Sigfrido V. Ortiz C.]

brucemunro@blueyonder.co.uk wrote:

> b.n. wrote:
>
>> Bruce Munro ha scritto:
>>
>>> A famous British mountaineer, George Mallory, who made several attempts
>>> on Mt. Everest, and was eventually killed on the mountain, was once
>>> asked why he was so determined to climb the peak. His answer? "Because
>>> it is there."
>>>
>>> Surely a very similar argument applies to Gentoo users and new Linux
>>> kernels! ;-)
>>
>>
>> Yeah, I know of Gentooist friends that are just so :)
>> But remember he was killed on the mountain...
>
>
> A very good point indeed! I myself have recently ended up doing a 
> complete re-installation of my Gentoo system after getting it into a 
> bit of mess. But then again, if you didn't enjoy installations and 
> fixing problems you wouldn't stick with Gentoo anyway.
>
>
> -Bruce
>
>
>
>
>
I agree with you Bruce, but i want to keep alive to enjoy more long time 
to Gentoo...!!
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Re: [gentoo-user] Why can't kernel-2.6.19-gentoo-r5 see my root partition?

[Daniel Barkalow]

On Sun, 4 Feb 2007, b.n. wrote:

> Bruce Munro ha scritto:
> 
> > A famous British mountaineer, George Mallory, who made several attempts
> > on Mt. Everest, and was eventually killed on the mountain, was once
> > asked why he was so determined to climb the peak. His answer? "Because
> > it is there."
> > 
> > Surely a very similar argument applies to Gentoo users and new Linux
> > kernels! ;-)
> 
> Yeah, I know of Gentooist friends that are just so :)
> But remember he was killed on the mountain...

If only he'd used quickpkg on himself before he left...

	-Daniel
*This .sig left intentionally blank*
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Re: [gentoo-user] Why can't kernel-2.6.19-gentoo-r5 see my root partition?

[Ben Kelly]

Michael Sullivan wrote:
> I upgraded my kernel to 2.6.19-gentoo-r6 this morning.  I used
> genkernel.  I followed these steps:
> 
> Deleted the /usr/src/linux symlink and recreated it point
> to /usr/src/2.6.19-gentoo-r5
> zcat /proc/config.gz > /usr/share/genkernel/x86/kernel-config-2.6
> genkernel all
> 
> After it successfully built, I opened up my /boot/grub/grub.conf file in
> vim and copied the entry lines for the old kernel I was using
> (2.6.18-gentoo-r6 - also created with genkernel) and changed the numbers
> to reflect the new kernel on the title, kernel, and initrd lines.
> However when I attempt to boot up with the new kernel, it goes through
> its usual device checks, and then right when it should say "Booting
> initramfs-{xxxx}", it says "/dev/sda6 is not a suitable root
> device." (or something like that) and offers me either a chance to enter
> the root device, or a shell.  I asked for the shell.  I did ls and saw a
> directory structure seemingly similar to my / on my root partition, but
> when I did ls /dev I didn't see any sda devices (or an other s* devices
> for that matter).  What's gone wrong, and what do I do to fix it?  Below
> is my /boot/grub/grub.conf:

I ran into a similar problem when upgrading.  It looked to me like the 
SATA device configuration variables had been changed or renamed.  This 
caused me to lose all my SATA modules when I rebuilt.  After I went in 
and explicitly added the new SATA drivers into the config the machine 
could boot again.

Hope that helps.

- Ben
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