chroot will capture the user environment's PATH variable, which may be
wrong (e.g. not include /bin:/sbin, as it is on Arch). We should set a
known-working PATH variable in the chroot.
Several packages got renamed/updated, libgcrypt was apparently installed
by default previously.
Since most libraries changed we have to completely rebuild all the tools
installed in the root image. We currently don't provide a clean target in
the recipes, and even if we did we'd have to track which base image we
last built for. It's easier to just use a different build directory for
each base image, at the cost of some additional disk space (if not manually
cleaned). However, that's also the case when updating kernel or
software versions.
Instead of extracting a downloaded Gentoo filesystem tree into a file
containing a reiserfs filesystem, create an ext3 filesystem inside a
sparse file, mount it and debootstrap an up-to-date Debian system. Use
this image as base for all UML guest images.
Also, drop support for the various consoles and use xterm
unconditionally.
Tobias Brunner