Re: [Xen-users] Manual p2v

[Paras pradhan <pradhanparas@xxxxxxxxx>]

Here is where I am stuck at:

I have a xenifed kernel installed for the PV. When I do: xm create domUname -c

I get this:

---

[root@cvtst1 ~]# xm create centos1 -c

Using config file "/etc/xen/centos1".

Traceback (most recent call last):

  File "/usr/bin/pygrub", line 684, in ?

    data = "">

IOError: [Errno 2] No such file or directory

No handlers could be found for logger "xend"

Error: Boot loader didn't return any data!

Usage: xm create <ConfigFile> [options] [vars]

---

Looks like it is not finding kernel, initrd (?)

---

grub.conf entry is:

title CentOS (2.6.18-194.3.1.el5xen)

root (hd0,0)

kernel /xen.gz-2.6.18-194.3.1.el5

module /vmlinuz-2.6.18-194.3.1.el5xen ro root=/dev/xvda1 console=xvc0

module /initrd-2.6.18-194.3.1.el5xen.img

---

config file for domU is:

--

[root@cvtst1 vms]# more centos1

name = "centos1"

maxmem = 1024

memory = 256

vcpus = 1

cpus="1-2"

bootloader = "/usr/bin/pygrub"

>

>

>

disk = [ "tap:aio:/vms/centos1.img,xvda1,w", "tap:aio:/vms/centos1.swap,xvdb1,w" ]

--

Thanks!

Paras

On Tue, May 18, 2010 at 10:03 PM, Fajar A. Nugraha <fajar@xxxxxxxxx> wrote:

On Wed, May 19, 2010 at 3:40 AM, Paras pradhan <pradhanparas@xxxxxxxxx> wrote:
> Hi Jeff,
> Thanks for the reply. What I did is:
> * dd a image file and mounted as a loop file.
> * copied everything including /boot except /proc /sys
> I will be using Paravirt and Pygrub. So I am a bit confused how to handle
> /boot using pygrub.

which part are you confused about? As long as you put the disk image
containing /boot first in your domU config file, pygrub should pick it
up just fine. The more important issue, since you'll be using paravirt
(PV) guest, is to prepare your system so it has PV-compatible kernel
and config (grub.conf, fstab, etc.). See http://pastebin.com/f6a5022bf
for example. The example is for converting HVM domU to PV, but some of
the info should also apply to converting physical machine to PV.

--
Fajar

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