On Sat, 2007-07-07 at 11:04 +0100, G T Smith wrote:
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> Martin Vuk wrote:
> 
> 
> > Isn't KIWI(http://en.opensuse.org/KIWI) supposed to be the tool for
> > that purpose? It can be used to make Xen images, so I see no reason
> > why it could not make normal disk images.
> > 
> 
> KIWI seems to be targeted at getting boot images on various removable
> media. To some extent XEN creates a similarly dynamic environment. This
> is not system cloning, but has very similar requirements.
> 
> Binary disk images for system cloning are IMHO problematic in that the
> end product tends to be monolithic, to make a small change one has to
> rebuild the whole thing. A further weakness is that if a disk image gets
> damaged you can loose the whole thing, an installation rpm based
> approach means you have the option of repairing just the damaged
> component in a clean manner.
> 
> (GHOST in particular suffers from this problem, 8 CDs into rebuild,
> sorry no 9 is corrupt ... no cigar ... but smoke will be seen :-)...
> )....
> 
> 
> > Anyway, I use autoyast for bootstraping the initial system and than
> > use puppet(http://reductivelabs.com/projects/puppet/) for additional
> > configuration. It takes a bit of learning, but it pays off after a
> > while.
> >
> 
> The first is the target for me, a base system build image. Combined with
> the regular backup of working data should allow rapid recovery from
> failure. If I add a new system component configuration can be deployed
> as either an additional custom rpm in (or separate from) the base image.
> 
> puppet seems to do what Zenworks does. However, Zenworks was (and I
> expect still is), closely tied to NDS tools and functionality and does
> not really require learning a scripting language to deploy. Such tools
> are useful for the after care and day to day phase i.e. for distributing
> and maintaining applications dynamically.
> 
> For my (and most people running small setups) this approach is probably
> overkill. For educational lab scenarios and medium to large businesses
> it is a worthwhile strategy. Online update (when functioning) is pretty
> effective in this role in the small environment...
> 
> This is a useful contribution. System cloning, System Restore and backup
> are different but inter-related activities and disk cloning and dynamic
> system maintenance are useful technologies to support these activities.
> (One should not confuse the hammer with the house however :-) ).
> 
Hey guys maybe we should put a paper together for the wiki? I found some
interesting words about using the "firstboot" process.
-- 
James Tremblay
Director of Technology
Newmarket School District
Newmarket,NH
http://en.opensuse.org/Education
"let's make a difference"

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