Reduce closure size of installer images #20641
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Should free up lots of space due to dependency on gnupg, which dpeends on openldap which pull in gcc.
Also, the minimal live CD previously installed both the X11 and non-X11 versions (through services.nixosManual) of w3m.
Saves a few megabytes of ALSA stuff.
fpletz
added
6.topic: closure size
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Nice, |
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Motivation for this change
In a minimal NixOS ISO installer environment I noticed some packages like X11 libraries which I felt were not needed and digged deeper.
The base installer profile includes
darin the system path which depends on gnupg which depends onpinentry,gtk2,openldap… I don't think this is a generally used tool and therefore propose to remove it.But these were not all X11 dependencies.
w3mwas included twice, with X11 (from the base installer profile) and without (fromservices.nixosManual). Butw3m-noxdepended onimlib2which again depended on X11 libraries. Therefore a newimlib2-noxwas introduced. The minimal installer is now free of X11 libs!Both the sizes of the kernel and the squashfs for the ISO and netboot images were reduced by about 20-25% by using XZ instead of gzip for compression. Disabling sound support also saved a few megabytes.
Stats for
iso_minimal.x86_64-linuxDiscussion & future work