nixpkgs/make-disk.sh

#! /bin/sh -e

archivesDir=/tmp/arch
manifest=${archivesDir}/MANIFEST
nixpkgs=/nixpkgs2/trunk/pkgs
fill_disk=$archivesDir/scripts/fill-disk.sh

chmod -R +w ${archivesDir}/*
rm -rf ${archivesDir}/*

NIX_CMD_PATH=/nix/bin

storeExpr=$(echo '(import ./pkgs.nix).everything' | $NIX_CMD_PATH/nix-instantiate -v -v -)
$NIX_CMD_PATH/nix-push --copy $archivesDir $manifest $(nix-store -r $storeExpr) $(nix-store -r $(echo '(import ./pkgs.nix).kernel' | $NIX_CMD_PATH/nix-instantiate -))

# Location of sysvinit?
sysvinitPath=$($NIX_CMD_PATH/nix-store -q $(echo '(import ./pkgs.nix).sysvinit' | $NIX_CMD_PATH/nix-instantiate -))

# Location of Nix boot scripts?
bootPath=$($NIX_CMD_PATH/nix-store -q $(echo '(import ./pkgs.nix).boot' | $NIX_CMD_PATH/nix-instantiate -))

nix=$($NIX_CMD_PATH/nix-store -q $(echo '(import ./pkgs.nix).nix' | $NIX_CMD_PATH/nix-instantiate -))

#nixDeps=$($NIX_CMD_PATH/nix-store -qR $(echo '(import ./pkgs.nix).nix' | $NIX_CMD_PATH/nix-instantiate -))

nixDeps=$($NIX_CMD_PATH/nix-store -qR $(nix-store -r $(echo '(import ./pkgs.nix).nix' | $NIX_CMD_PATH/nix-instantiate -)))

echo $nixDeps

cp -fa ${nixpkgs} ${archivesDir}
cp -fa --parents ${nixDeps} ${archivesDir}
mkdir ${archivesDir}/scripts
cp -fa * ${archivesDir}/scripts
sed -e "s^@sysvinitPath\@^$sysvinitPath^g" \
    -e "s^@bootPath\@^$bootPath^g" \
    -e "s^@NIX_CMD_PATH\@^$nix^g" \
    < $fill_disk > $fill_disk.tmp
mv $fill_disk.tmp $fill_disk
* Scripts to set up and run the absolute minimal pure Nix environment; that is, an operating system environment in which there is (essentially) only a store. The script `make-disk.sh' creates an ext2 disk image, creates a Nix store in it, and copies the closure of the bash package (from nixpkgs) to it. The script `run.sh' then starts bash in a UML virtual machine. The contents of the image after creation look like this: $ ls -l drwxr-xr-x 2 root root 1024 2004-02-14 19:13 dev lrwxrwxrwx 1 root root 61 2004-02-14 23:34 init -> /nix/store/e40873ece7a010752ad72b4262b23d28-bash-2.05b/bin/sh drwx------ 2 root root 12288 2004-02-14 19:13 lost+found drwxr-xr-x 4 root root 1024 2004-02-14 19:13 nix drwxr-xr-x 2 root root 1024 2004-02-14 19:13 proc drwxrwxrwt 2 root root 1024 2004-02-14 19:13 tmp The next step is to add all the other stuff that goes into a working system (coreutils, etc.). BTW, if you don't have `ls' you can still list directories by doing `echo *' :-) Nix itself should also be Nixified so that it can be put into the store. svn path=/nixu/trunk/; revision=783 2004-02-14 22:56:51 +00:00			`#! /bin/sh -e`

rewrite nixu scripts to use nix-push. Install the whole NixU environment in two main steps: 1 - first build everything (nix-push) 2 - install everything on a seperate disk/machine (nix-pull) svn path=/nixu/trunk/; revision=3291 2005-07-05 13:52:49 +00:00			`archivesDir=/tmp/arch`
			`manifest=${archivesDir}/MANIFEST`
apart from nixpkgs also copy the NixU scripts svn path=/nixu/trunk/; revision=3298 2005-07-06 14:42:41 +00:00			`nixpkgs=/nixpkgs2/trunk/pkgs`
rewrite make-disk.sh and have it parameterize fill-disk.sh with the location of sysvinit and the boot scripts that will be used. svn path=/nixu/trunk/; revision=3299 2005-07-06 16:00:20 +00:00			`fill_disk=$archivesDir/scripts/fill-disk.sh`
apart from nixpkgs also copy the NixU scripts svn path=/nixu/trunk/; revision=3298 2005-07-06 14:42:41 +00:00
copy the right packages into the diskimage, copy nixpkgs svn path=/nixu/trunk/; revision=3313 2005-07-11 17:59:19 +00:00			`chmod -R +w ${archivesDir}/*`
apart from nixpkgs also copy the NixU scripts svn path=/nixu/trunk/; revision=3298 2005-07-06 14:42:41 +00:00			`rm -rf ${archivesDir}/*`
add a whole bunch of packages to make NixU a bit more useful: - ssh - shadowutils - ping - vim - less - strace - ... svn path=/nixu/trunk/; revision=1243 2004-08-06 13:52:39 +00:00
			`NIX_CMD_PATH=/nix/bin`

rewrite nixu scripts to use nix-push. Install the whole NixU environment in two main steps: 1 - first build everything (nix-push) 2 - install everything on a seperate disk/machine (nix-pull) svn path=/nixu/trunk/; revision=3291 2005-07-05 13:52:49 +00:00			`storeExpr=$(echo '(import ./pkgs.nix).everything' \| $NIX_CMD_PATH/nix-instantiate -v -v -)`
copy nixpkgs, so it reflects what was built. This code uses a simple "cp -a" so there is a race condition (nixpkgs being altered after the build). However, with a bit of care and "policy" this should work ;-) Also push all packages we want to push at once. svn path=/nixu/trunk/; revision=3292 2005-07-05 14:39:12 +00:00			`$NIX_CMD_PATH/nix-push --copy $archivesDir $manifest $(nix-store -r $storeExpr) $(nix-store -r $(echo '(import ./pkgs.nix).kernel' \| $NIX_CMD_PATH/nix-instantiate -))`
* Use sysvinit's init to start the system. This has the happy side-effect of initialising the console properly (i.e., enabling Ctrl-[C, Z]). svn path=/nixu/trunk/; revision=801 2004-02-18 10:56:07 +00:00
			`# Location of sysvinit?`
rewrite make-disk.sh and have it parameterize fill-disk.sh with the location of sysvinit and the boot scripts that will be used. svn path=/nixu/trunk/; revision=3299 2005-07-06 16:00:20 +00:00			`sysvinitPath=$($NIX_CMD_PATH/nix-store -q $(echo '(import ./pkgs.nix).sysvinit' \| $NIX_CMD_PATH/nix-instantiate -))`
* Use sysvinit's init to start the system. This has the happy side-effect of initialising the console properly (i.e., enabling Ctrl-[C, Z]). svn path=/nixu/trunk/; revision=801 2004-02-18 10:56:07 +00:00
* Proper sysvinit boot/halt. At runlevel 2, creates login shells at virtual consoles 0 and 1. To shutdown, do `init 0' (`halt' and `shutdown' don't work because they call /sbin/init). svn path=/nixu/trunk/; revision=803 2004-02-18 14:56:32 +00:00			`# Location of Nix boot scripts?`
rewrite make-disk.sh and have it parameterize fill-disk.sh with the location of sysvinit and the boot scripts that will be used. svn path=/nixu/trunk/; revision=3299 2005-07-06 16:00:20 +00:00			`bootPath=$($NIX_CMD_PATH/nix-store -q $(echo '(import ./pkgs.nix).boot' \| $NIX_CMD_PATH/nix-instantiate -))`

run the Nix scripts for installing everything from the Nix built Nix. svn path=/nixu/trunk/; revision=3303 2005-07-08 10:06:41 +00:00			`nix=$($NIX_CMD_PATH/nix-store -q $(echo '(import ./pkgs.nix).nix' \| $NIX_CMD_PATH/nix-instantiate -))`
copy nixpkgs, so it reflects what was built. This code uses a simple "cp -a" so there is a race condition (nixpkgs being altered after the build). However, with a bit of care and "policy" this should work ;-) Also push all packages we want to push at once. svn path=/nixu/trunk/; revision=3292 2005-07-05 14:39:12 +00:00
copy the right packages into the diskimage, copy nixpkgs svn path=/nixu/trunk/; revision=3313 2005-07-11 17:59:19 +00:00			`#nixDeps=$($NIX_CMD_PATH/nix-store -qR $(echo '(import ./pkgs.nix).nix' \| $NIX_CMD_PATH/nix-instantiate -))`

			`nixDeps=$($NIX_CMD_PATH/nix-store -qR $(nix-store -r $(echo '(import ./pkgs.nix).nix' \| $NIX_CMD_PATH/nix-instantiate -)))`

			`echo $nixDeps`

apart from nixpkgs also copy the NixU scripts svn path=/nixu/trunk/; revision=3298 2005-07-06 14:42:41 +00:00			`cp -fa ${nixpkgs} ${archivesDir}`
copy the right packages into the diskimage, copy nixpkgs svn path=/nixu/trunk/; revision=3313 2005-07-11 17:59:19 +00:00			`cp -fa --parents ${nixDeps} ${archivesDir}`
apart from nixpkgs also copy the NixU scripts svn path=/nixu/trunk/; revision=3298 2005-07-06 14:42:41 +00:00			`mkdir ${archivesDir}/scripts`
			`cp -fa * ${archivesDir}/scripts`
rewrite make-disk.sh and have it parameterize fill-disk.sh with the location of sysvinit and the boot scripts that will be used. svn path=/nixu/trunk/; revision=3299 2005-07-06 16:00:20 +00:00			`sed -e "s^@sysvinitPath\@^$sysvinitPath^g" \`
			`-e "s^@bootPath\@^$bootPath^g" \`
run the Nix scripts for installing everything from the Nix built Nix. svn path=/nixu/trunk/; revision=3303 2005-07-08 10:06:41 +00:00			`-e "s^@NIX_CMD_PATH\@^$nix^g" \`
rewrite make-disk.sh and have it parameterize fill-disk.sh with the location of sysvinit and the boot scripts that will be used. svn path=/nixu/trunk/; revision=3299 2005-07-06 16:00:20 +00:00			`< $fill_disk > $fill_disk.tmp`
			`mv $fill_disk.tmp $fill_disk`