Re: [Xen-users] XEN reboot issue

[David F Barrera <dfbp@xxxxxxxxxx>]

Make sure the appropriate module is included for you file system. Here's 
a sample /etc/sysconfig/kernel  file:
# cat /etc/sysconfig/kernel
DEFAULTKERNEL=kernel
INITRD_MODULES="scsi_mod ext3"


Girish Mani wrote:
> Hi,
>
> Thanks that worked. Basically I downloaded the source from the 
> website, compiled it against my kernel separately. I executed a 
> "depmod" before making the initrd. I added this entry to the grub.conf 
> file and I moved a step forward.
> When I try to reboot my machine and try to load through XEN, I get the 
> following errors:
> <<<<<<<<
> Creating root device
> Mounting root filesystem
>
> mount: could not find filesystem '/dev/root'
> Setting up other filesystems
> Setting up new root fs
> setuproot: moving /dev failed: No such file or directory
> no fstab.sys, mounting internal defaults
> setuproot: error mounting /proc: no such file or directory
>
> setuproot: error mounting /sys: no such file or directory
> Switching to new root and running init
> unmounting old /dev
> unmounting old /proc
> unmounting old /sys
> switchroot: mount failed: no such file or directory
>
> Kernel panic - not syncing: Attempted to kill Init:
> >>>>>>>>>
>
> I came across a similar problem in the "xen-users" list. But that does 
> not talk about any resolution.
> Can you help me in this regard?
>
> Thanks,
>
> On 8/1/06, *David F Barrera* <dfbp@xxxxxxxxxx 
> <mailto:dfbp@xxxxxxxxxx>> wrote:
>     Girish Mani wrote:
>     > Hi,
>     >
>     > I have installed XEN in my Fedora Linux machine and have the
>     following
>     > entries in the /boot/grub/grub.conf file:
>     > <<<<<<<
>     > title Fedora Core ( 2.6.17.3 <http://2.6.17.3> <http://2.6.17.3>)
>     >         root (hd0,4)
>     >         kernel /vmlinuz-2.6.17.3 <http://2.6.17.3> <
>     http://2.6.17.3> ro
>     > root=/dev/vol/root rhgb quiet
>     >         initrd /initrd-2.6.17.3.img
>     > title Xen 3.0 / XenLinux 2.6
>     >         root (hd0,4)
>     >         kernel /xen-3.0.gz dom0_mem=262144
>     >         module /vmlinuz-2.6-xen root=/dev/sda5 ro console=tty0
>     > >>>>>>>>
>     >
>     You need to create an initrd and add a line to the Xen grub entry:
>             module /initrd-xen.img
>
>     To make an initrd, do something like this:
>
>     mkinitrd -v -f initrd-xen.img 2.6.16.13-xen
>
>     Also, make sure the device drivers you need (e.g. SCSI) are included/
>     > I have the following concerns:
>     > 1. Can someone the value that should go in the "root" field of the
>     > "module" parameter? What value should this contain. Is it the "root
>     > path" from where the current OS is loading (or) "boot path" from
>     where
>     > the current OS is loading?
>     > 2. When I reboot the machine and try loading XEN, the "VFS failure"
>     > error occurs. I understand this is because of the wrong value in the
>     > "root" field.
>     >
>     > Thanks in advance,
>     >
>     >
>     >
>     ------------------------------------------------------------------------
>     >
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>
>
>     --
>
>     Regards,
>
>     David F Barrera
>     Linux Technology Center
>     Systems and Technology Group, IBM
>
>     "The wisest men follow their own direction. "
>
>                               Euripides
>
>
>
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>
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--

Regards,

David F Barrera
Linux Technology Center
Systems and Technology Group, IBM

"The wisest men follow their own direction. "
                                                     Euripides 


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