panic when adding root=/LABEL=/ in grub.conf - newbie

panic when adding root=/LABEL=/ in grub.conf - newbie

[sting sting]

Hello,

I am working with kenel 2.4.20 on Intel x86.
Now I Had downloaded a kernel source to a different folder and build it.
I added an entry in grub.conf
When I choose to load that kernel everything is OK.
It works wth no problem.
But under /boot I see nothing of the original files (there is only one file 
there , kernel.h).

The output of mount  is :

/dev/hda3 on / type ext3 (rw)
none on /proc type proc (rw)
none on /dev/pts type devpts (rw,gid=5,mode=620)
none on /dev/shm type tmpfs (rw)

when I add the following in grub.conf (to the option of choosing to load 
this kernel)

root=/LABEL=/

I get the the following panic message:
VFS: cannot open root device = "LABEL=/" or 00:00
Please append a correct "root= "  boot option.
Kernel panic : VFS: unable to mount root fs on 00:00

Any idea?
Any help will be appreciated.

Sting

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Re: panic when adding root=/LABEL=/ in grub.conf - newbie

[Arjan van de Ven]

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On Wed, 2004-04-07 at 15:37, sting sting wrote:
> Hello,
> 
> I am working with kenel 2.4.20 on Intel x86.
> Now I Had downloaded a kernel source to a different folder and build it.
> I added an entry in grub.conf
> When I choose to load that kernel everything is OK.
> It works wth no problem.
> But under /boot I see nothing of the original files (there is only one file 
> there , kernel.h).


you need to use an initrd if you want mount-by-label to work for your
root filesystem.
on a RHL or Fedora system (and I suspect other distros too but I don't
know for sure) just doing a "make install" in the kernel source will
make one for you and put the kernel you just build into the grub config
etc etc etc.


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Re: panic when adding root=/LABEL=/ in grub.conf - newbie

[Andreas Dilger]

On Apr 07, 2004  16:37 +0300, sting sting wrote:
> when I add the following in grub.conf (to the option of choosing to load 
> this kernel)
> 
> root=/LABEL=/
> 
> I get the the following panic message:
> VFS: cannot open root device = "LABEL=/" or 00:00
> Please append a correct "root= "  boot option.
> Kernel panic : VFS: unable to mount root fs on 00:00

Instead, use the correct format, otherwise (as errors say, a device "/LABEL="
cannot be found:

root=LABEL=/

Cheers, Andreas
--
Andreas Dilger
http://sourceforge.net/projects/ext2resize/
http://www-mddsp.enel.ucalgary.ca/People/adilger/