[Linux-disciples] Debian upgrade order

[Stephen R Laniel]

I just did a big Ubuntu apt-get upgrade, which is
obviously identical to the Debian apt-get upgrade, and I
noticed that the order seems to be

foreach(@packages) {
	pre-install script;
}

foreach(@packages) {
	unpack;
}

foreach(@packages) {
	install script;
}

I would have thought that the order would be more like

foreach(@packages) {
	pre-install script;
	unpack;
	install script;
}

As it is, doing all the pre-install scripts first leads to
situations where a daemon, say, gets turned off early on,
then a whole bunch of other packages get processed, then the
daemon gets turned back on. If all the actions for a given
package were done together, the impact on a production
system could be minimized.

Any idea why Debian orders the process the way it does?

-- 
Stephen R. Laniel
steve at laniels.org
+(617) 308-5571
http://laniels.org/
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