Xen users - Mar 2011 - VM Config file

Hi.
Please, I need a help.
I am trying create a VM into a Debian 4 XEN. If I use a xen-create-image
command, it works ok.
But I need create a VM using a ISO dvd (suse, debian, etc).
I created the file configuration file as:

import commands
krn_vers = commands.getoutput(''uname -r'')
name =''suse10''
builder = ''linux''
disk = [ ''phy:/dev/xenvg/suse10.dsk,xvda1,w'', \
            ''phy:/dev/xenvg/suse10.swp,xvda2,w'', \
            ''phy:/dev/scd0,hdc:cdrom,r'' ]
boot=''dc''
memory = 512
vif = [ ''bridge=xenbr0'' ]
kernel = ''/boot/vmlinuz-'' + krn_vers
ramdisk = ''/boot/initrd.img-'' + krn_vers
root = ''/dev/xvda1 ro''
on_poweroff = ''destroy''
on_reboot = ''restart''
on_crash = ''restart''
extra = ''xencons=xvc console=xvc0 video=tty''
vfb = [
''type=vnc,vncdisplay=0,vnclisten=0.0.0.0,vncpasswd=passwd'' ]

xvda1/2 I defined into a LVM e formated them.
/dev/scd0 it is ok. I mounted and dismounted and it is ok.

After all, I execute the command:

xm create suse10.cfg -c

And it hang.

Please, some idea ?

Thanks.
JoseFormiga


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2011/3/31 JOSÉ FORMIGA <jformiga.rs@gmail.com>
> Hi.
> Please, I need a help.
> I am trying create a VM into a Debian 4 XEN. If I use a xen-create-image
> command, it works ok.
> But I need create a VM using a ISO dvd (suse, debian, etc).
>
That''s a known issue. You can NOT use ISO/cdrom to install most (if not
all)
linux distros when using PV domU
(hint: if you don''t know what PV domU is, that''s what you get
when you
specifiy "kernel = ''/boot/vmlinuz*'' or
''bootloader='').

You CAN use ISO if you use HVM domU (see /etc/xen/xmexample* for PV and HVM
sample config files).

-- 
Fajar


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2011/3/31 JOSÉ FORMIGA <jformiga.rs@gmail.com>
> Hi Fajar.
> Thanks by orientation.
>
> But if I use this:
>
> import os, re
> arch = os.uname()[4]
> if re.search(''64'', arch):
>     arch_libdir = ''lib64''
> else:
>     arch_libdir = ''lib''
> kernel = "/usr/lib/xen-4.0/boot/hvmloader"
> builder=''hvm''
> memory = 512
> shadow_memory = 8
> name = "SUSE10"
> vif = [ ''type=ioemu, bridge=xenbr0'' ]
> disk = [ ''file:/root/xensuse10.img,hda,w'',
> ''file:/root/suse10.iso,hdc:cdrom,r'' ]
> device_model = ''/usr/'' + arch_libdir +
''/xen-4.0/bin/qemu-dm''
> # boot on floppy (a), hard disk (c) or CD-ROM (d)
> # default: hard disk, cd-rom, floppy
> boot="dc"
> sdl = 0
> vnc = 1
>
> vnclisten="0.0.0.0"
> vncdisplay=0
> vncconsole = 0
> vncpasswd=''milonga''
> stdvga = 0
> serial = ''pty''
>
> and use xm create vmxxx -c , it give me a "Domain do not exist".
>
> What am I doing wrong ?
>

*Shrug*

Lot''s of things can go wrong. That''s why it''s easier
to:
- use a distro that comes bundled with Xen
- use that distro''s management tools

After you can create it using management tools, it''s easier to start
with
manual-created config file. RHEL5 comes with virt-manager, while Suse should
have a module for yast.

In your case the problem might be anything from incorrect bridge name (does
xenbr0 exists?) to selinux problem (/root is usually not accessable by
daemons). files on /var/log/xen/* usually give some indincations what''s
wrong.

-- 
Fajar


>
> Can you give a model ?
>
> Thanks.
> JoseFormiga
>
> Em 30 de março de 2011 20:20, Fajar A. Nugraha <list@fajar.net>
escreveu:
>
>  2011/3/31 JOSÉ FORMIGA <jformiga.rs@gmail.com>
>>
>>> Hi.
>>> Please, I need a help.
>>> I am trying create a VM into a Debian 4 XEN. If I use a
xen-create-image
>>> command, it works ok.
>>> But I need create a VM using a ISO dvd (suse, debian, etc).
>>>
>>
>> That''s a known issue. You can NOT use ISO/cdrom to install
most (if not
>> all) linux distros when using PV domU
>> (hint: if you don''t know what PV domU is, that''s what
you get when you
>> specifiy "kernel = ''/boot/vmlinuz*'' or
''bootloader='').
>>
>> You CAN use ISO if you use HVM domU (see /etc/xen/xmexample* for PV and
>> HVM sample config files).
>>
>> --
>> Fajar
>>
>>
>

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