Steven
Hanley
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Mon, 28 Apr 2008

Update on deb package archive clearing. - 14:44
In response to my last post, In email and online a few people have suggested using file:// URI's in sources.list as that stops apt from using the cache. That would indeed fix the problem for the one machine I was talking about in the post (the mirror itself) however I should admit I had also been thinking about it with respect to all the desktops and servers and such that use Debian or Ubuntu in the department here at work.

They all have a 100 Mbit (or better) link to the mirror, and it seems silly to have them using local disk storage once an entire successful apt run is finished. Andrew suggested the Dpkg::Post-Invoke rule could be used to run apt-get clean, my understanding upon reading the documentation last week was that would run clean after every individual deb package as installed. I guess it is likely when installing large numbers it may not be run until after the post-inst script, however without looking close it appeared to me it may mess up install processes somehow. I may have gotten that intuition wrong, however as pointed out in the other online response it will not work for some use cases.

It still seems the only current way to solve this is to add apt-get clean to cron (or of course write a patch for apt that allows a Apt::Install-Success::Post method or something), not really a huge problem for now, however as I said strangely different to dselect and my expected capabilities.

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