Re: [Xen-users] Install ubunto domU

[Boris Derzhavets <bderzhavets@xxxxxxxxx>]

> I tried to follow your steps (installing Lucid x86_64 PV domU on a CentOS 54 x86_64 dom0, running xen 3.4.2 from gitco) ... but was not successful. Something is still escaping me.

Yes , you missing David's patch. Personally , i could back port it only to Xen 4.0,
even Xen 3.4.3 was not enough. Some other CSs from 4.0 are required for consistency and you don't know which ones.

You are at 3.4.2 !

I believe gitco did Xen 4.0 rpms. Gitgo's  4.0 src.rpm has to patched per David and rpms rebuilt. That 's in case you want "pygrub" to be bootloader for DomU . It's comfortable, but not required.

Boris.

--- On Mon, 5/17/10, David Markey <admin@xxxxxxxxxxx> wrote:

From: David Markey <admin@xxxxxxxxxxx>
Subject: Re: [Xen-users] Install ubunto domU
To: "Nuno L. Ferreira" <nunolf@xxxxxxxxx>
Cc: "Boris Derzhavets" <bderzhavets@xxxxxxxxx>, "xen-users" <xen-users@xxxxxxxxxxxxxxxxxxx>
Date: Monday, May 17, 2010, 6:54 PM

You need http://lists.xensource.com/archives/html/xen-devel/2010-04/msg00748.html

On 17 May 2010 23:24, Nuno L. Ferreira <nunolf@xxxxxxxxx> wrote:

Dear *, Boris

I tried to follow your steps (installing Lucid x86_64 PV domU on a CentOS 54 x86_64 dom0, running xen 3.4.2 from gitco) ... but was not successful. Something is still escaping me.
Installation went just fine till the end after a "xm create -c lucid.xen" (see below).
After installation (without any modifications to what was installed) I edited the xen config file (test.xen, see below) to boot with pygrub instead. But I get the following error:
Error: Boot loader didn't return any data!

I checked that the new domU does not have /usr/bin/pygrub, and this explains the error.
So Boris, how did you boot your ubunto based domU after a netboot installation?
I did not tried yet the debootstrap method also suggested ... first I want to know what I'm doing wrong here.

I'm a bit lost on setting up an ubunto domU, first time getting outside RedHat like OSes. So if there are some good working links to blogs/tutorials on how to install ubunto domU's on RedHat like dom0's I'll appreciate.

Cheers,
N.

P.S. Steps taken :

1 - lvcreate -n domu.ubunto.lucid -L 4G vg1
2 - mkfs.ext3 /dev/vg1/domu.ubunto.lucid
3 - wget http://archive.ubuntu.com/ubuntu/dists/lucid/main/installer-amd64/current/images/netboot/xen/vmlinuz
4 - wget http://archive.ubuntu.com/ubuntu/dists/lucid/main/installer-amd64/current/images/netboot/xen/initrd.gz
5 - cat lucid.xen
name      = "lucid"
memory    = 1024
disk      = ['phy:/dev/vg1/domu.ubunto.lucid,xvda,w' ]
vif       = [ 'bridge=eth0' ]
kernel    = "/mnt/dom0/data/domu.setup/ubunto/lucid/vmlinuz"
ramdisk   = "/mnt/dom0/data/domu.setup/ubunto/lucid/initrd.gz"
vcpus     = 1

on_crash  = 'destroy'

6 - xm create -c lucid.xen
... installation goes just fine ...
7 - cat test.xen
name        = "test"
memory      = 512
maxmem      = 1024
bootloader  = '/usr/bin/pygrub'
disk        = ['phy:/dev/vg1/domu.spyder.root,xvda,w' ]
vif         = [ 'bridge=eth0' ]
vcpus       = 1

on_reboot   = 'restart'
on_crash    = 'restart'

8 - xm create -c test.xen
Using config file "./test.xen".
Error: Boot loader didn't return any data!

Boris Derzhavets wrote:

I was able to start installer :

root@ServerLnx:/home/boris/ubuntu# wget http://archive.ubuntu.com/ubuntu/dists/lucid/main/installer-amd64/current/images/netboot/xen/vmlinuz
--2010-05-13 12:36:14--  http://archive.ubuntu.com/ubuntu/dists/lucid/main/installer-amd64/current/images/netboot/xen/vmlinuz
Resolving archive.ubuntu.com... 91.189.92.167, 91.189.88.30, 91.189.88.31, ...
Connecting to archive.ubuntu.com|91.189.92.167|:80... connected.
HTTP request sent, awaiting response... 200 OK
Length: 4037888 (3.9M) [text/plain]
Saving to: `vmlinuz'

100%[========================================================================>] 4,037,888    101K/s   in 27s    
2010-05-13 12:36:41 (144 KB/s) - `vmlinuz' saved [4037888/4037888]

root@ServerLnx:/home/boris/ubuntu# wget http://archive.ubuntu.com/ubuntu/dists/lucid/main/installer-amd64/current/images/netboot/xen/initrd.gz
--2010-05-13 12:37:02--  http://archive.ubuntu.com/ubuntu/dists/lucid/main/installer-amd64/current/images/netboot/xen/initrd.gz
Resolving archive.ubuntu.com... 91.189.92.166, 91.189.92.167, 91.189.88.30, ...
Connecting to archive.ubuntu.com|91.189.92.166|:80... connected.
HTTP request sent, awaiting response... 200 OK
Length: 9678415 (9.2M) [application/x-gzip]
Saving to: `initrd.gz'

100%[========================================================================>] 9,678,415    200K/s   in 60s    
2010-05-13 12:38:03 (156 KB/s) - `initrd.gz' saved [9678415/9678415]

root@ServerLnx:/home/boris/ubuntu# cat ubuntu.cfg
name="U10PV"
memory=2048
disk = ['phy:/dev/sdb5,xvda,w' ]
vif = [ 'bridge=eth0' ]
# vfb = [ 'type=vnc,vncunused=1']
kernel = "/home/boris/ubuntu/vmlinuz"
ramdisk = "/home/boris/ubuntu/initrd.gz"
vcpus=2



# xm create -c ubuntu.cfg

and see several obvious disadvantages (vs HVM convertion) :

1. VFB doesn't work
2. After selecting local mirror "Installing base system" is already running for 15 min
at 2MB/sec ADSL connection.

Boris.

-----Inline Attachment Follows-----

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

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