So, with your help I finally checked all software installed on my gentoo-server (thanks to everyone, who replied). There were a few gentoo-sources (I think 5 or 6 different versions), so I used "emerge --prune gentoo-sources" to leave only the last one.
Then I checked /usr/src, and I see there are still 2 subdirectories: linux-2.6.12-gentoo-r6 (~50MB) linux-2.6.13-gentoo-r5 (~300MB) I'm surprised there is still 2.6.12-r6, because I unmerged it. Can I delete it? Will this not break some dependencies? Moreover, "emerge --pretend --prune" showed I have a few packages with more than one version: db (4.2.52_p2 , 1.85-r2) automake (1.5, 1.6.3, 1.7.9-r1, 1.4_p6, 1.8.5-r3, 1.9.6-r1) freetype (2.1.9-r1, 1.3.1.-r4) autoconf (2.13, 2.59-r6) Can I unmerge all but the last versions? Strange is, emerge does not always want to leave the last version, for example it has marked db 4.2.52 as "selected" for unmerge, and 1.85 as "protected" (similar for freetype, 2.1.9 "selected", 1.3.1 "protected"). So can I leave "emerge --prune" to do its job without breaking some dependencies? At least for automake and autoconf? Jarry -- gentoo-user@gentoo.org mailing list