Re: [Xen-users] Fedora Core 5 boot problems

["Srinivasan S" <ssrini@xxxxxxxxxxxxx>]

OK, I got it running ...

I first executed : depmod 2.6.16-xen and this generated the required 
modules.dep and other files.

Then I executed : mkinitrd /boot/initrd-2.6.16-xen.img 2.6.16-xen and this 
generated the proper initrd file

And voila the boot worked perfectly and my xen dom0 is atleast running .. Now 
to get domU ;-)

Thanks to James for pointing me in the right direction

Cheers
Srini

>I just tried copying the modules.dep file from the stock FC5 kernel .. 
>mkinitird is successful .
>
>The system boots also using the initrd produced ..
>
>However the network modules are disabled and both eth0 and eth1 are not 
>enabled.  Strange since everything works with the stock kernel ..
>
>I guess some more work needs to be done on the modules.dep file ..
>
>Can someone please help ?
>
>Regards
>Srini

>I've just installed from the tarball install.sh also >and have the same
>issue.  (Mine is on RHEL4U2 on x86_64.)

>When I tried the mkinitrd, I get this error:
>[root@stone-age-global /]# /sbin/mkinitrd >/boot/initrd-2.6.16-xen.img
>2.6.16-xen
>No dep file found for kernel 2.6.16-xen

>After looking through the other kernels I have, it >seems as though they
>have them.

>What is the workaround here?  Do we just copy over >the other deps and
>modify them for 2.6.16-xen?

>Thanks
>eric

> ----- Original Message -----
> From: "James Bulpin" <james@xxxxxxxxxxxxx>
> To: "Srinivasan S" <ssrini@xxxxxxxxxxxxx>
> Subject: Re: [Xen-users] Fedora Core 5 boot problems
> Date: Fri, 14 Apr 2006 14:56:27 +0100
> 
> 
> If you install from tarball you need to create this yourself, e.g.:
> 
>    /sbin/mkinitrd /boot/initrd-2.6.16-xen.img 2.6.16-xen
> 
> (and update grub)
> 
> The install.sh script does not do this automagically because initrd 
> generation is distribution-specific.
> 
> James
> 
> Srinivasan S wrote:
> > Thanks for a prompt response ..
> >
> > I could not find any initrd for the Xen 3.o in my /boot ..
> > Do I need to do a mkinitrd ?  Any hints will help
> >
> > Regards
> > Srini
> >
> >
> >> ----- Original Message -----
> >> From: "James Bulpin" <james@xxxxxxxxxxxxx>
> >> To: "Srinivasan S" <ssrini@xxxxxxxxxxxxx>
> >> Subject: Re: [Xen-users] Fedora Core 5 boot problems
> >> Date: Fri, 14 Apr 2006 14:37:05 +0100
> >>
> >>
> >> You're using the kernel from the binary tarball and the initrd 
> >> from the FC5 non-Xen kernel. To a first approximation kernel 
> >> version and modules (in the initrd) must match.
> >>
> >> James
> >>
> >> Srinivasan S wrote:
> >>
> >>> Hi
> >>>
> >>> I had Xen 2.x running peacefully on FC4 .. sigh.
> >>>
> >>> Yesterday I upgraded to FC5 and also downloaded and installed 
> >>> the new Xen version 3.x from xensource.com .. I installed via 
> >>> the precompiled tarball.
> >>>
> >>> My grub entries loook like this:
> >>>
> >>> title Xen 3.0 (Fedora/XenLinux 2.6)
> >>>   root (hd0,4)
> >>>   kernel /xen.gz dom0_mem=260000
> >>>   module /vmlinuz-2.6-xen root=/dev/sda6 ro console=tty0
> >>>   module /initrd-2.6.15-1.2054_FC5.img
> >>>   boot
> >>>
> >>> My /etc/fstab looks like this:
> >>>
> >>> /dev/sda6                 /                       ext3    
> >>> defaults        1 1
> >>> LABEL=/boot             /boot                   ext3    defaults        1 
> >>> 2
> >>> none                    /dev/pts                devpts  gid=5,mode=620  0 
> >>> > >>> 0
> >>> none                    /dev/shm                tmpfs   defaults        0 
> >>> > >>> 0
> >>> none                    /proc                   proc    defaults        0 
> >>> > >>> 0
> >>> none                    /sys                    sysfs   defaults        0 
> >>> > >>> 0
> >>> /dev/sda7               swap                    swap    defaults        0 
> >>> > >>> 0
> >>>
> >>> ...
> >>>
> >>> Fedora is installed on a SATA hard disk, partition /dev/sda6
> >>>
> >>> Xen boots and then soon after reports a kernel panic and after 
> >>> a few seconds reboots .. I was unable to get the messages 
> >>> before the last screen but managed to capture the last messages 
> >>> on screen .. reported below.
> >>>
> >>> ...
> >>> Loading jbd.ko module
> >>> jbd: disagrees about version of symbol struct_module
> >>> insmod: error inserting /lib/jbd.ko: -1 invalid module format
> >>> Loading ext3.ko module
> >>> ext3: disagrees about version of symbol struct_module
> >>> insmod: error inserting /lib/ext3.ko: -1 invalid module format
> >>> 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:
> >>>
> >>> And then the system quickly reboots.
> >>>
> >>> Any help to fix this is appreciated.
> >>>
> >>> Regards
> >>> Srini
> >>>
> >>>
> >>>
> >
> >
> >
> >

>


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