OLPC-Update + RPMs WAS:Re: OLPC XO Opera browser as Sugar activity

[Martin Langhoff]

On Fri, Jun 27, 2008 at 5:21 PM, Michael Stone <michael at laptop.org> wrote:
> We chose a monolithic update solution because of several deficiencies,
> *for our primary use case*, of all package-based upgrade solutions with
> which we were familiar at the time. Package-based update solutions with
> which we were familiar:

...
> These were some of the considerations that led to the development of the
> olpc-update technology.

All reasonable, and the snapshot based approach has certain key
advantages for some uses. There is one thing that really bothers me,
however, and makes me suspect that we cannot actually use the snapshot
approach long term: that it completely bypasses rpm's preinst/postinst
scripts.

The F7 to F9 update surely has interesting and important pre/post inst
scripts, some of which may affect user data. We are skipping them
completely. I know this is unworkable for the server (packages
routinely use post-inst to perform database format conversion and
such).

cheers,


m
-- 
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 martin at laptop.org -- School Server Architect
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