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#1 2004-08-18 04:52:14

vor_lord
Member
From: Fort Collins, Colorado, USA
Registered: 2004-06-10
Posts: 52

Can't find root device after kernel upgrade to 2.6.8.1

I just upgraded to 2.6.8.1.  After doing so, I can no longer boot no matter what I try as a root= parameter  sad

I always get "Cannot open root device".

Previously, I was running devfs with 2.6.7.  Grub config is:

title  Arch Linux  [/boot/vmlinuz26]
        root   (hd0,7)
        kernel /boot/vmlinuz26 root=/dev/discs/disc0/part8 ro hdg=none vga=773

In grub, I can generally poke around to get things to work.  I can see after executing 'root (hd0,7)' that I have found and mounted (in grub) the correct partition.  Nothing has changed except for the kernel upgrade.

I've tried all kinds of things, including devfs=nomount, using /dev/hde8.  I'm out of ideas, and out of my depth  sad

I guess I can just extract my old kernel in its place (by booting into my RH9 installation), but I think I need to learn something here.

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#2 2004-08-18 20:09:08

vor_lord
Member
From: Fort Collins, Colorado, USA
Registered: 2004-06-10
Posts: 52

Re: Can't find root device after kernel upgrade to 2.6.8.1

huevo5050 wrote:

Same problem here.

Well, perhaps we can find some similarities in our situations and deduce the problem?  It's worth a shot at this point.

I _think_* that while I've been running devfs, I have installed the udev package.  I had another boot option which passed devfs=nomount, but too many things stopped working so I hadn't been using it (I'll invest the time into udev later).

Do you by chance have udev package installed, but not using it?


Other things about my system:

nForce Ultra 400 chipset
Athlon XP Mobile
SATA drive as the only hard drive


*I say think because I may have removed it even though I'm sure things worked fine without removing it on 2.6.7.

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#3 2004-08-18 21:34:33

khazdar
Member
From: ohio
Registered: 2003-11-06
Posts: 123

Re: Can't find root device after kernel upgrade to 2.6.8.1

I have the same problem. I get a kernel panic error. I also use a SATA drive. I use UDEV.

I found this link : http://bugs.archlinux.org/?do=details&id=1265

however, I use the IDE kernel, and not the SCSI.

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#4 2004-08-18 22:42:11

tranquility
Member
From: Portugal
Registered: 2004-08-06
Posts: 136

Re: Can't find root device after kernel upgrade to 2.6.8.1

khazdar wrote:

I have the same problem. I get a kernel panic error. I also use a SATA drive. I use UDEV.

I found this link : http://bugs.archlinux.org/?do=details&id=1265

however, I use the IDE kernel, and not the SCSI.

I have the exact same problem. I already tried changing grub's root param to something like root=/dev/sda5, since / is my fifth partition, and I can't boot it at all neutral

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#5 2004-08-19 00:07:49

vor_lord
Member
From: Fort Collins, Colorado, USA
Registered: 2004-06-10
Posts: 52

Re: Can't find root device after kernel upgrade to 2.6.8.1

chroot /mnt/arch
pacman -R kernel26
cd /var/cache/pacman/pkg
pacman -A kernel26-2.6.7-1.pkg.tar.gz
reboot

So my system is working fine.  However, I had removed my udev package.  And since some people with this problem are running udev, and some devfs, it must be something else.

I too, use the IDE kernel, not the scsi, but it doesn't seem to matter.

The problem is, I tried /dev/hde8 and that didn't work.  Because I'm using devfs, would the drive designation change to something else other than /dev/discs ?

And if so, to what?

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#6 2004-08-19 01:20:31

kakabaratruskia
Member
From: Santiago, Chile
Registered: 2003-08-24
Posts: 596

Re: Can't find root device after kernel upgrade to 2.6.8.1

I'm having the same problem, and can't boot, even though I've tried every root= path I can think of.
I think linus is going the wrong way, there should be a development branch, or things get screwed. First NFS, and 2.6.8.1, k3b does not work, and SATA users can't boot.
Anyway, I know GPL software has no warranty, so I'll better shut up....


And where were all the sportsmen who always pulled you though?
They're all resting down in Cornwall
writing up their memoirs for a paper-back edition
of the Boy Scout Manual.

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#7 2004-08-21 15:21:42

kakabaratruskia
Member
From: Santiago, Chile
Registered: 2003-08-24
Posts: 596

Re: Can't find root device after kernel upgrade to 2.6.8.1

Is there anyway I can install this, if my arch does not boot, and I've tried with lot's of rescue CDs, and can't boot with any of them (I can boot with amlug live-cd, but can't boot into my existing linux instalation, so I can't reinstall lilo, nor reinstall the kernel). Is there a way to reinstall this from a live distro?


And where were all the sportsmen who always pulled you though?
They're all resting down in Cornwall
writing up their memoirs for a paper-back edition
of the Boy Scout Manual.

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#8 2004-08-22 03:07:20

kakabaratruskia
Member
From: Santiago, Chile
Registered: 2003-08-24
Posts: 596

Re: Can't find root device after kernel upgrade to 2.6.8.1

Thanks a lot gramps, I tried what you told me, but I don't have the kernel 2.6.7 in the cache... If someone has it, please tell, me, or upload it somewhere I can grab it...


EDIT: I've found kernel 2.6.3 in the stable repo... Thanks anyway.


And where were all the sportsmen who always pulled you though?
They're all resting down in Cornwall
writing up their memoirs for a paper-back edition
of the Boy Scout Manual.

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#9 2004-08-22 04:11:34

kakabaratruskia
Member
From: Santiago, Chile
Registered: 2003-08-24
Posts: 596

Re: Can't find root device after kernel upgrade to 2.6.8.1

Thanks, it worked fine (even though I had the most stressful time of my life fixing it, seeing how all my mp3 could vanish...)


And where were all the sportsmen who always pulled you though?
They're all resting down in Cornwall
writing up their memoirs for a paper-back edition
of the Boy Scout Manual.

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#10 2004-08-23 20:13:52

kakabaratruskia
Member
From: Santiago, Chile
Registered: 2003-08-24
Posts: 596

Re: Can't find root device after kernel upgrade to 2.6.8.1

Has anyone (obviously braver than me) tried 2.6.8.1-3?  Does it work?, with what device naming scheme?....


And where were all the sportsmen who always pulled you though?
They're all resting down in Cornwall
writing up their memoirs for a paper-back edition
of the Boy Scout Manual.

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