F9alpha AMD-64 HP DC7700 SFF switch_root: no filesystems

John Summerfield debian at herakles.homelinux.org
Sun Feb 24 10:18:30 UTC 2008


cornel panceac wrote:
> is your grub.conf ok?
I was going to say, "of course," but then I remembered that there's a 
stanza that shouldn't be there.

No, it's not a problem with the grub configuration. I can load the 
kernel and its matching initrd, and the parameters look fine.

At present I think Andrew's pointed to the correct problem. Now my 
challenge is to implement it.

What I need is an F9a rescue CD, or failing that a reasonable approximation.


The current status is this.

I've downloaded the kernel Andrew pointed out and unpacked it with 
rpm2cpio and cpio.

I've created a tarball on a USB disk, and then unpacked it into the 
broken system.

I can boot the kernel, but as it doesn't have built-in drivers for my 
SATA hardware, it very quickly dies.

I'm back to wondering how to get an initrd into the box. I cannot create 
on on that system. Possibly I can copy one from it and patch it on 
another system. That might be worth a try.

Meanwhile, more suggestions are welcome.

> 
> 2008/2/24, John Summerfield <debian at herakles.homelinux.org>:
>> Andrew Farris wrote:
>>
>>> I suspect you've got the 54 or 64 kernel installed [1], both of which
>>> fail for many people with the 'switch_root: no such file' error.
>>> Backing it down to the 40 kernel may get you farther into the boot and
>>> maybe show whether or not the volume group issue goes away or not.  To
>>> get it backed down you'll need to download the kernel, boot into a
>>> rescue mode, chroot, and install the older kernel.
>>>
>>> If this fails you might have to go farther back, getting a 2.6.24 kernel
>>> to install, then when booted to that you may be able to install the
>>> 2.6.25 rc kernel (2.6.25 kernels had some issues with mkinitrd when done
>>> on a 2.6.25 kernel, I'm not sure if that is resolved).
>>
>> At present I don't have any means of booting a Linux system that can
>> perform any maintenance on the system.
>>
>> The kernel is a dot-64 job.
>>
>>
>>> [1] http://koji.fedoraproject.org/packages/kernel/2.6.25/
>>>
>>
>> --
>>
>>
>> Cheers
>> John
>>
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>>
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> 
> 
> 


-- 

Cheers
John

-- spambait
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