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SubjectRe: Cannot boot after new Kernel Build
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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