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

[James Bulpin <james@xxxxxxxxxxxxx>]

Please include the list on your replies, I'm out of town at the moment 
so you'll probably get quicker responses from others on the list.
You need to run e.g.:

depmod -a 2.6.16-xen

(This is the same procedure you would use to install any new Kernel, Xen 
or otherwise.)
James

Srinivasan S wrote:
> Hi James
>
> I tried this and got the error message ..
>
> No dep file found for kernel
>
> I then tried copying the modules.dep file from the stock fc5 kernel and tried mkinitrd again. It went through and created the initrd.  
>
> I then tried booting with the new initrd .. it works but a number of modules .. 
> espescially network interfaces (eth0, eth1) do not load and produce errors.
>
> Any idea where I need to get the modules.dep file from ?  Or am I missing 
> something else ?
>
> Cheers
> 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 14:56:27 +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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