9fd5d70968
thanks to unionfs. For instance, nix-env and nixos-rebuild work. The tricky part was to build a Nix database (in the tmpfs/unionfs) which is now necessary to prevent store paths on the CD from being deleted right away because they otherwise wouldn't be valid. * nixos-install: use the /etc/nixos/configuration.nix from the target file system (don't copy it anymore). Since the user is supposed to mount the target file system on /mnt anyway, we may as well require that configuration.nix is placed in /mnt/etc/nixos. This also makes upgrading / reinstalling much easier, since it will automatically use the right configuration.nix. svn path=/nixos/trunk/; revision=10399
*** NixOS *** NixOS is a Linux distribution based on the purely functional package management system Nix. More information can be found at http://nix.cs.uu.nl/nixos and in the manual in doc/manual.