Re: [Xen-users] 2.6.20-1-amd64 Xen with RHEL5 guest

["Daniel P. Berrange" <berrange@xxxxxxxxxx>]

On Thu, May 17, 2007 at 04:51:43PM +1000, Alex Samad wrote:
> On Thu, May 17, 2007 at 02:39:00PM +1000, Alex Samad wrote:
> > On Wed, May 16, 2007 at 02:39:15PM +0100, Daniel P. Berrange wrote:
> > > On Wed, May 16, 2007 at 12:34:54PM +1000, Alex Samad wrote:
> > > > ==============
> > > > cat rhel5-x86_64.cfg
> > > > ==============
> > > > #
> > > > #  Kernel + memory size
> > > > #
> > > > kernel      = '/etc/xen/data/rhel5-x86_64/vmlinuz'
> > > > ramdisk     = '/etc/xen/data/rhel5-x86_64/initrd.img'
> > > > memory      = '128'
> > > > 
> > > > #
> > > > #  Disk device(s).
> > > > #
> > > > root        = '/dev/sda1 ro'
> > > 
> > > This is redundant (&wrong) when booting off the vmlinux & initrd.img
> > > for purposes of installation. The initrd contains sets up the root
> > > filesystem in a ramdisk for the install.
> > got rid of 
> > 
> > > 
> > > > disk        = [ 'phy:vglocal/rhel5-x86_64-disk,sda,w', 
> > > > 'phy:vglocal/rhel5-x86_64-swap,sdb,w']
> > > 
> > > Better off using xvda & xvdb there
> > 
> > I am presuming you mean change sda & sdb with xvda xvdb
> > 
> > tried that 
> > 
> > i captured this of the console during the rhel boot up
> > XENBUS: Device with no driver: device/vbd/51712                             
> >                                                                    
> > XENBUS: Device with no driver: device/vbd/51728                             
> >                                                                    
> > XENBUS: Device with no driver: device/vif/0                                 
> >                                                                    
> 
> 
> okay made the changes to xvba & xvbb, went forward with the rhel5 install, it 
> wants to partition up the drives. which I let it do in its default way - 
> which 
> means I have a /boot, pv1, pv2.
> From the host machine how can I get to /boot for the vmlinux and the initrd?
> I am presuming I need these to insert into my xen config file !

No need. Just use pygrub bootloader. eg instead of kernel + initrd config
options, use

  bootloader='/usr/bin/pygrub'

It will automatically look in /boot for the guest disk & extract the default
kernel & initrd. If you use 'xm create -c' it'll present you the usual grub
style menu for choosing a non-default kernel.

Dan.
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