Re: Cannot boot after new Kernel Build

[Alex]

Hi,
I tried changing the fstab, removing the LABLE from the grub.conf, 
removing initrd from it and also tried to boot with /dev/hda3.  Nothing 
works, still the same problem.

Alex

Christian Kivalo wrote:

> > Hi,
> > I am trying to build a new kernel but what ever version 2.4.24, 2.6.0,
> > 2.6.1 i am trying to build I come across the same problem.
> >
> > when doing a "make install" i get the following error.
> >
> > /dev/mapper/control: open failed: No such file or directlry
> > Is device-mapper driver missing from kernel?
> > Comman failed.
> >
> > I have installed the lates packages
> > device mapper 1.00.07
> > initscripts 7.28.1
> > modutils, lvm2.2.00.08
> > mkinitrd-3.5.15.1-2
> >
> > If I just ignore the message and try to boot the machine with the new
> > kernel then I get a Kernel Panic.
> >
> > VFS: Cannot open root device "LABEL=/" or unknown-block(0,0)
> > Please append a correct "root=" boot option
> > Kernel panic: VFS: Unapble to mount root fs on unknown-block(0,0).
> >
> > The boot command in grub is
> > root (hd0,0)
> > kernel /vmlinuz-2.6.1 ro root=LABEL=/ hdc=ide-scsi
> > initrd /initrd-2.6.1.img
> >
> > It is basically the same (except the version) as I use for
> > 2.4.20-28 so
> > I assume the label is correct.
> >
> > I saw quite a few messages of similar type but no real answer to the
> > problem. Any Ideas what it could be ?  I am using RH9.0
> >    
>
> hi!
>
> as mentioned in this thread
> (http://marc.theaimsgroup.com/?l=linux-kernel&m=107330398724534&w=2) a
> few days ago, christophe saout wrote: "LABEL= is a RedHat extension.
> Please use the normal root options that is described in the Grub or
> kernel documentation."
> rik van riel mentioned: "It's not even a Red Hat extension.  The LABEL=
> stuff is done entirely in userspace, on the initrd.
>
> If you do not want to use an initrd, you need to use the normal root
> options instead, something like root=/dev/hda3" that thread also offers
> some information to the problem."
>
> have you created an initrd? if not, comment that line out of your grub
> config.
>
> you can leave your fstab like it is, using labels in fstab is ok.
>
> hth
> christian
>
>  
>
> > Thanks
> > Alex
> >    
>
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