Save more disk space at build time
Originally created by Tails on #5940 (Redmine)
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The following can only be implemented once we switch to live-build 3.x (#5691 (closed)). So let’s wait.
switch to live-build hooks
live-build 3.x ships a few interesting space-saving hooks in
share/hooks, such as one that removes GNOME icon cache, another one
that removes compiled Python .pyc files, and one that removes /tmp/*
at the end of the chroot_local-hooks stage.
Once we use this version of live-build, we can remove our own
implementation of this from
config/chroot_local-hooks/98-remove_unwanted_files.
files only needed at build time
We’re currently using chroot_local-includes as a way to pass files
from the build host to the build chroot. As a result, released images
contain many files (mostly in /usr/) that are needed at build time but
useless at runtime.
live-build 3.x bind mounts (read-only) the build configuration directory
(config) inside the chroot (onto /root/config) while the chroot
hooks are running.