Ross S. W. Walker schrieb:
Manuel Wolfshant wrote:
Götz Reinicke wrote:
Hi,
what would be the shortest and fastest way to clone a e.g. basic
Centos 5 guest for further use? For example I'd like to set up a
master Mysql-server as a guest an than "clone" two additional slaves.
I have a lvm "template", i.e. a simple volume with the OS
skeleton ( a
minimal install). When I need a new VM I do
- lvcreate newvolume
- mkfs newvolume
- mount template /mnt/source
- mount newvolume /mnt/destination
- cp -a /mnt/source /mnt/destination
wash, rinse, repeat as needed.
Which xen configfiles may be edited?
cp /etc/xen/template /etc/xen/newVM
vim /etc/xen/newVM
Can the config and the filesystem simply be copied?
yes.
There is another approach too. You can set up your guests
as virtual diskless servers which can net boot their
configuration from dom0. Maybe iSCSI or blktap their
root drives and overlay a configuration over / or /etc
from NFS on dom0, or their whole configuration.
You can definitely mash-up some good ideas with LTSP
and Xen.
I wish Xen had a virtual 10Gbe interface, then you can
really do some nifty stuff!
I personnally setup KDM or GDM in each domU to do XDMCP
broadcast then I can pick which virtual guest to log into
once it is up and running and with KDM/GDM user switching
I open another session, pick a guest and get a full
graphical login.
That sounds realy cool; do you have any wiki or how to set this things
up. (I know that there are a lot of how tos, but they seem to handle
mostly special aspects ... )
regards
Götz
--
Götz Reinicke
IT Koordinator
Tel. +49 7141 969 420
Fax +49 7141 969 55 420
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