nixpkgs/fill-disk.sh
Armijn Hemel 9c56696e75 support for initrd. Right now the image is *WAY* too big, so it boots with
a kernel panic. initrd should be brought back to a few megabytes instead
so it can be safely unzipped in memory.

Ideas:
- klibc instead of glibc
- leave out a lot of packages in the initrd:
  - gcc
  - linux-headers
  - ...
- have a minimal "stage 1", which mounts the CD (figure out how) and
remounts part of the CD on /nix and /nixpkgs

svn path=/nixu/trunk/; revision=3502
2005-08-01 17:30:45 +00:00

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#! @bash@ -e
## #! /bin/sh -e
sysvinitPath=@sysvinitPath@
bootPath=@bootPath@
if ! test -n "$1"
then
echo "need harddisk device for installing!"
exit
else
device=$1
fi
make_dir() {
mode=$1
name=$2
echo creating $name...
if ! test -d $root/$name; then mkdir $root/$name; fi
chmod $mode $root/$name
}
touch_file() {
name=$1
echo touching $name...
if ! test -d $root/$name; then touch $root/$name; fi
}
root=/tmp/mnt
mkdir -p /tmp/mnt
mount $device /tmp/mnt
# mkdir -p /nix
# mkdir -p /nixpkgs/trunk/pkgs
# temporary hack
# mount --bind /mnt/cdrom1/nix /nix
# mount --bind /mnt/cdrom1/pkgs /nixpkgs/trunk/pkgs
make_dir 00755 /bin
make_dir 00755 /dev
make_dir 00755 /proc
make_dir 01777 /tmp
make_dir 00755 /etc # global non-constant configuration
make_dir 00755 /etc-secret
make_dir 00755 /var
make_dir 00755 /nix
make_dir 00755 /nix/store
make_dir 00755 /nix/var
make_dir 00755 /nix/var/nix
make_dir 00755 /nix/var/nix/db
make_dir 00755 /nix/var/nix/manifests
make_dir 00755 /nix/var/log
make_dir 00755 /nix/var/log/nix
make_dir 00755 /nixpkgs
make_dir 00755 /nixpkgs/trunk
make_dir 00755 /mnt
make_dir 00755 /mnt/host
make_dir 00755 /home
make_dir 00755 /home/root
mknod $root/dev/null c 1 3
touch_file /etc/passwd
touch_file /etc/shadow
touch_file /etc/group
rm -f $root/etc/mtab
#ln -s /proc/mounts $root/etc/mtab
export NIX_DATA_DIR=$root/nix/share
export NIX_LOG_DIR=$root/nix/log/nix
export NIX_STATE_DIR=$root/nix/var/nix
export NIX_CONF_DIR=$root/nix/etc
NIX_CMD_PATH=@NIX_CMD_PATH@/bin
echo initialising Nix DB...
#/nix/bin/nix-store --init
$NIX_CMD_PATH/nix-store --init
echo verifying Nix DB...
$NIX_CMD_PATH/nix-store --verify
echo copying nixpkgs...
cp -fa ../pkgs $root/nixpkgs/trunk
make_dir 0755 /tmp/scripts
cp -fa ../scripts $root/tmp
#echo adding manifest
#$NIX_CMD_PATH/nix-pull $manifest
echo adding packages
export NIX_ROOT=$root
unset NIX_DATA_DIR
unset NIX_LOG_DIR
unset NIX_STATE_DIR
unset NIX_CONF_DIR
#storeExpr=$(echo '(import /tmp/scripts/pkgs.nix).everything' | $NIX_CMD_PATH/nix-instantiate -v -v -)
#storeExpr=$(echo '(import ./pkgs.nix).everything' | $NIX_CMD_PATH/nix-instantiate -v -v -)
#$NIX_CMD_PATH/nix-store -r $storeExpr
#echo $storeExpr
#storeExpr2=$($NIX_CMD_PATH/nix-store -qR $($NIX_CMD_PATH/nix-store -r $storeExpr))
#echo storeExpr $storeExpr
#echo $($NIX_CMD_PATH/nix-store -qR --include-outputs $storeExpr)
echo copying store
(while read storepaths; do
cp -fa $storepaths $root/nix/store
done) < /mnt/cdrom1/mystorepaths
#cp -fa ../nix/store/* $root/nix/store
#echo registering valid paths...
#(while read storepath; do
# echo PATH $storepath
# if ! $NIX_CMD_PATH/nix-store --isvalid $storepath 2> /dev/null; then
# (unset NIX_ROOT; $NIX_CMD_PATH/nix-store --dump $storepath) | $NIX_CMD_PATH/nix-store --restore $storepath
# $NIX_CMD_PATH/nix-store --validpath $storepath
# fi
#done) < /tmp/mystorepaths
#echo registering successors...
#(while read line; do
# echo SUCC $line
# $NIX_CMD_PATH/nix-store --successor $line
#done) < /tmp/mysuccessors
exit
echo setting init symlink...
rm -f $root/init
ln -s $sysvinitPath/sbin/init $root/init
echo setting up inittab...
rm -f $root/etc/inittab
echo "id:2:initdefault:" >> $root/etc/inittab
echo "si::bootwait:$bootPath/bin/boot.sh" >> $root/etc/inittab
echo "ht:06:wait:$bootPath/bin/halt.sh" >> $root/etc/inittab
echo "1:2345:respawn:$bootPath/bin/login.sh /dev/ttys/0" >> $root/etc/inittab
#echo "2:2345:respawn:$bootPath/bin/login.sh /dev/ttys/1" >> $root/etc/inittab
echo setting up networking information...
make_dir 00755 /etc/networking
echo 192.168.150.1 > $root/etc/networking/local-ip
echo 192.168.150.3 > $root/etc/networking/gateway-ip
cp /etc/resolv.conf $root/etc
rm -f $root/etc/hosts
echo "127.0.0.1 localhost" >> $root/etc/hosts
echo "192.168.150.1 uml" >> $root/etc/hosts