RE: [Xen-users] Convert CentOS system to Xen image?

["Ross S. W. Walker" <rwalker@xxxxxxxxxxxxx>]

James Pifer wrote:
> 
> > Well, your almost there, but you need to boot up an OS recovery iso
> > in the HVM and reinstall grub as the primary disk will now be 'hda'
> > instead of whatever the other server's was, probably 'sda', or
> > 'md0' if it had software raid.
> > 
> > Once you have it running install the xen PV kernel, use disklabels
> > for non-LVM volumes in your fstab and grub and then shut it down
> > and convert the config to PVM. Boot with 'xm create -c <config'
> > so you see the grub menu and select the xen kernel. Once you
> > have the PVM running, set it's kernel as the default in grub.
> 
> I tried to do that. Since it's full virt does an actual CD need to be
> inserted in the box? I tried adding a virtual CDROM using the ISO, but
> it will not boot off of it. 

Best thing to do is write up a command-line config for your little
domain. Try this to get started (put your specifics where needed):

kernel = "/usr/lib/xen/boot/hvmloader"
builder='hvm'
memory = 512
name = "MyDomain"
guest_os_type = 'linux'
vcpus=1
vif = [ 'type=ioemu, bridge=xenbr0' ]
disk = [ 'phy:/dev/vg0/lv3,hda,w', 'file:/tmp/rescue.iso,hdc,r' ]
boot="dcna"
vnc=1
vncconsole=1
vncpasswd=''
serial='pty'

This should boot into d=cdrom first, then c=hard disk second, followed
by n=network (PXE) third, followed by a=floppy last.

> On the screen I have
> ata0 master is the qemu hard disk.
> ata0 slave is Unknown device.

Not sure which screen you are talking about here, still using
virt-manager? Drop it and start writing config files.

The options are documented in the examples in /etc/xen directory.

> I installed a xen PV kernel on the live server before grabbing it. 

Good fore thought, that'll save a step later.

-Ross

______________________________________________________________________
This e-mail, and any attachments thereto, is intended only for use by
the addressee(s) named herein and may contain legally privileged
and/or confidential information. If you are not the intended recipient
of this e-mail, you are hereby notified that any dissemination,
distribution or copying of this e-mail, and any attachments thereto,
is strictly prohibited. If you have received this e-mail in error,
please immediately notify the sender and permanently delete the
original and any copy or printout thereof.


_______________________________________________
Xen-users mailing list
Xen-users@xxxxxxxxxxxxxxxxxxx
http://lists.xensource.com/xen-users