Hi everyone,
I have made significant progress on this topic :-)
On Windows Vista, the installer extracts a WSH JScript that relaunches
a JVM with elevated privileges. I suspect that it works on XP too but
I couldn't test it.
On *nix (Linux, etc), it uses a "least-common denominator" approach by
relying on xterm + sudo.
On Mac OS X, the installer extracts a very small universal binary that
uses the Security framework, again to ask for elevation.
In my limited experimentations this worked well.
It can be enabled through a <run-privileged/> tag in the
<info>(...)</info> section.
The code is currently available from
http://github.com/jponge/izpack/tree/exec-admin through Git. I would
appreciate to get some feedback on it. I can upload a testing
installer if some of you need. Otherwise you can easily get the code
from Git. (Windows users,
http://code.google.com/p/msysgit/ provides a
very good Git build that works out of the box).
I'd love to merge that for IzPack 4.2.
Cheers
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