Easier Way to configure domainU

Hi,

I want to configure a new domainU from existing domain. Can I just copy
the image file (/var/lib/xen/images/box) and also copy the configuration
file of existing domain?

The format of configuration file is like this:

# Automatically generated xen config file
name = "xen2"
memory = "1000"
disk = [ 'tap:aio:/var/lib/xen/images/box2,xvda,w', ]
vif = [ 'mac=xx:xx:xx:xx:xx:xx, bridge=xenbr1', ]
vnc=1
vncunused=1
uuid = "9297c728-efe7-025f-3b35-02f92474aa6e"
bootloader="/usr/bin/pygrub"
vcpus=1
on_reboot   = 'restart'
on_crash    = 'restart'

I will change the name to a new name, set vcpu to 4. But I don't know how
to  get a unique mac address and uuid. Anybody know?

And except for create the image file and configuration file, what else do
i need to do?

PS: I use the Fedora XEN.

Thanks for your time.

Best Wishes
Angel

[Olivier Renault]

taoj2(a)cs.rpi.edu wrote:
>  Hi,
>  
>  I want to configure a new domainU from existing domain. Can I just copy
>  the image file (/var/lib/xen/images/box) and also copy the configuration
>  file of existing domain? 
Correct.
>  
>  The format of configuration file is like this:
>  
>  # Automatically generated xen config file
>  name = "xen2"
>  memory = "1000"
>  disk = [ 'tap:aio:/var/lib/xen/images/box2,xvda,w', ]
>  vif = [ 'mac=xx:xx:xx:xx:xx:xx, bridge=xenbr1', ]
>  vnc=1
>  vncunused=1
>  uuid = "9297c728-efe7-025f-3b35-02f92474aa6e"
>  bootloader="/usr/bin/pygrub"
>  vcpus=1
>  on_reboot   = 'restart'
>  on_crash    = 'restart'
>  
>  I will change the name to a new name, set vcpu to 4. But I don't know how
>  to  get a unique mac address and uuid. Anybody know? 
For the mac I tend to randomly
change one of the last 6 characters. It 
is easier for the uuid as you can use the uuidgen command to generate a 
new one.

>  
>  And except for create the image file and configuration file, what else do
>  i need to do? 
That should be it.
>  
>  PS: I use the Fedora XEN.
>  
>  Thanks for your time.
>  
>  Best Wishes
>  Angel
>  
>  --
>  Fedora-xen mailing list
>  Fedora-xen(a)redhat.com
>  https://www.redhat.com/mailman/listinfo/fedora-xen

[Hope Dundas]

Hi folks, the RHEL5 Virtualization guide has some nice info on this:

http://www.redhat.com/docs/manuals/enterprise/RHEL-5-manual/Virtualizatio...

1) As Olivier mentioned, uuidgen is a built-in app that will generate a 
valid, unique, uuid.

2) this script (gakked from the above webpage)  will generate a mac 
address:

#! /usr/bin/python
# macgen.py script generates a MAC address for Xen guests
#
import random
mac = [ 0x00, 0x16, 0x3e,
random.randint(0x00, 0x7f),
random.randint(0x00, 0xff),
random.randint(0x00, 0xff) ]
print ':'.join(map(lambda x: "%02x" % x, mac))

Enjoy!

 	~ Hope Dundas

~~~
Hope Dundas, hope.dundas(a)umich.edu
Database/Systems Administrator
Housing Information Technology Office
University of Michigan

On Wed, 25 Jul 2007, Olivier Renault wrote:

>  taoj2(a)cs.rpi.edu wrote:
> > 
>  For the mac I tend to randomly change one of the last 6 characters.
> It 
>  is easier for the uuid as you can use the uuidgen command to generate a 
>  new one.
>