Re: [Xen-users] XenU installs

[Nico Kadel-Garcia <nkadel@xxxxxxxxx>]

Daniel P. Berrange wrote:
> On Tue, Jun 05, 2007 at 05:41:58PM +0100, Andre Grove wrote:
>   
> > hello all,
> >
> > i've been messing around with Xen, and it seems that most HOWTOs
> > document installs by using prebuilt images.
> > i'm rather anal about my installs though, and i want to be able to
> > boot CDs (or ISO images). i've tried the following config:
> >
> > kernel = "/boot/vmlinuz-2.6-xen"
> > memory = 128
> > name = "andre_test_01"
> > cpus = "1" # leave to Xen to pick
> > vif = [ 'bridge=xenbr0' ]
> > disk = [ 'file:/xendisks/andre_test.img,sda1,w',
> > 'file:/xendisks/andre_test_swap.img,sda2,w',
> > 'file:/xendisks/install-isoS/install.iso,hdc,r' ]
> > ramdisk = "/boot/initrd.img-2.6.16.33-xen"
> > boot = "d"
> >
> > the boot = d is apparently used to boot the cdrom, but it doesn't work
> > for me. i've tried copying the vmlinuz and initrd.
> >     
> CDROM's are only used in fully-virt guests - your config here is a paravirt
> guest so there's no boot option available. Paravirt guests can only boot
> off a kernel/initrd (or via a bootloader like pygrub). Fullyvirt guests
> have a real BIOS so boot from the MBR of the disk, from CDROM, Floppy
> or PXE from the network.
>   
Paravirt can do certain types of network boots: look into libvirt and 
virt-manager and virt-install to see how it's done.
It's also possible to build an OS image in a mounted partition with rpm 
"--relocate" and similar tools.
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