nixpkgs/helpers/make-iso9660-image.sh
Eelco Dolstra 9fd5d70968 * The CD is now a true live CD: you can run Nix operations in it
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
2008-01-30 01:28:56 +00:00

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source $stdenv/setup
sources_=($sources)
targets_=($targets)
objects=($objects)
symlinks=($symlinks)
if test -n "$bootable"; then
# The -boot-info-table option modifies the $bootImage file, so
# find it in `contents' and make a copy of it (since the original
# is read-only in the Nix store...).
for ((i = 0; i < ${#targets_[@]}; i++)); do
if test "${targets_[$i]}" = "$bootImage"; then
echo "copying the boot image ${sources_[$i]}"
cp "${sources_[$i]}" boot.img
chmod u+w boot.img
sources_[$i]=boot.img
fi
done
bootFlags="-b $bootImage -c .boot.cat -no-emul-boot -boot-load-size 4 -boot-info-table"
fi
touch pathlist
# Add the individual files.
for ((i = 0; i < ${#targets_[@]}; i++)); do
echo "${targets_[$i]}=$(readlink -f ${sources_[$i]})" >> pathlist
done
# Add the closures of the top-level store objects.
storePaths=$(perl $pathsFromGraph closure-*)
for i in $storePaths; do
echo "${i:1}=$i" >> pathlist
done
# Also put a nix-pull manifest of the closures on the CD.
printRegistration=1 perl $pathsFromGraph closure-* > nix-path-registration
echo "nix-path-registration=nix-path-registration" >> pathlist
# Add symlinks to the top-level store objects.
for ((n = 0; n < ${#objects[*]}; n++)); do
object=${objects[$n]}
symlink=${symlinks[$n]}
if test "$symlink" != "none"; then
mkdir -p $(dirname ./$symlink)
ln -s $object ./$symlink
echo "$symlink=./$symlink" >> pathlist
fi
done
cat pathlist
# !!! -f is a quick hack.
ensureDir $out/iso
genisoimage -r -J -o $out/iso/$isoName $bootFlags \
-hide-rr-moved -graft-points -path-list pathlist
ensureDir $out/nix-support
echo $system > $out/nix-support/system