RE: [Xen-users] 3.4-testing : Kernel panic on bootup (mount: couldnotfind filesystem /dev/root/)

["Robbie Garrett" <rgarrett@xxxxxxxxxxxxxx>]

Look at your grub config.

Root=/LABEL=/ looks way wrong.

It should point to something in the /dev directory.

In my case my hard drive that has the / file system on it is /dev/sdc1

Look at your other grub configs for your other WORKING kernels and make the
root=/ section of your grub config the same as what those kernels read.


-----Original Message-----
From: xen-users-bounces@xxxxxxxxxxxxxxxxxxx
[mailto:xen-users-bounces@xxxxxxxxxxxxxxxxxxx] On Behalf Of Madhu Venugopal
(vmadhu)
Sent: Wednesday, August 26, 2009 9:03 AM
To: Xen User-List
Subject: RE: [Xen-users] 3.4-testing : Kernel panic on bootup (mount:
couldnotfind filesystem /dev/root/)

Anyone ?
I searched the forums, but couldn't find a solution to the problem am
facing.

-Madhu

> -----Original Message-----
> From: xen-users-bounces@xxxxxxxxxxxxxxxxxxx [mailto:xen-users-
> bounces@xxxxxxxxxxxxxxxxxxx] On Behalf Of Madhu Venugopal (vmadhu)
> Sent: Tuesday, August 25, 2009 3:43 PM
> To: Xen User-List
> Subject: [Xen-users] 3.4-testing : Kernel panic on bootup (mount:
could
> notfind filesystem /dev/root/)
> 
> Hi,
> 
> I installed XEN 3.4-testing version without much problems in CentOS
5.3
> running on quadcore Intel Nahelam processors using the following
> installation
> steps (as in the README) :
> 
> <steps>
> hg clone http://xenbits.xensource.com/xen-3.4-testing.hg`
> cd xen-unstable.hg
> make world
> make install
> make linux-2.6-xen-config CONFIGMODE=menuconfig
> make linux-2.6-xen-build
> make linux-2.6-xen-install
> depmod 2.6.18.8-xen
> mkinitrd -v -f --with=ahci --with=sd_mod --with=scsi_mod --allow-
> missing
> initrd-2.6.18-xen.img 2.6.18.8-xen
> cp initrd-2.6.18-xen.img /boot
> </steps>
> 
> After the installation, I updated the grub with the following entry :
> 
> <grub.conf>
> title  Xen 3.4.2
>         root (hd0,0)
>         kernel /xen.gz loglvl=all guest_loglvl=all vtd=1 iommu=1
>         module /vmlinuz-2.6.18.8-xen root=LABEL=/ apic=debug maxcpus=8
>         module /initrd-2.6.18-xen.img
> <grub.conf>
> But during the bootup, I see Kernel panic with the only error above
> that
> being :
> 
> <error>
> mount: could not find filesystem /dev/root/
> setuproot: moving /dev failed: No such file or Directory
> no fstub.sys, mounting internal defaults
> setuproot: error mounting /proc:No such file or directory
> </error>
> 
> Is it an error in partition ? or a Grub entry error ?
> Or an installation error ?
> 
> Can someone help me ?
> 
> Thanks,
> Madhu
> 
> _______________________________________________
> Xen-users mailing list
> Xen-users@xxxxxxxxxxxxxxxxxxx
> http://lists.xensource.com/xen-users

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