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nixpkgs/fill-disk.sh

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* 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
* 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
sysvinitPath=$1
initPath=$2
* 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
make_dir() {
mode=$1
name=$2
echo creating $name...
if ! test -d $root/$name; then mkdir $root/$name; fi
chmod $mode $root/$name
}
root=/tmp/mnt
echo mounting...
mount -t ext2 /dev/discs/disc0/disc $root
make_dir 00755 /dev
make_dir 00755 /proc
make_dir 01777 /tmp
* 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
make_dir 00755 /etc # global non-constant configuration
make_dir 00755 /var
* 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
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/log
make_dir 00755 /nix/var/log/nix
* 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
make_dir 00755 /mnt
make_dir 00755 /mnt/host
make_dir 00755 /home
make_dir 00755 /home/root
rm -f $root/etc/mtab
ln -s /proc/mounts $root/etc/mtab
* 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
export NIX_ROOT=$root
echo initialising Nix DB...
/nix/bin/nix-store --init
echo verifying Nix DB...
/nix/bin/nix-store --verify
echo registering valid paths...
(while read storepath; do
echo PATH $storepath
if ! /nix/bin/nix-store --isvalid $storepath 2> /dev/null; then
(unset NIX_ROOT; /nix/bin/nix-store --dump $storepath) | /nix/bin/nix-store --restore $storepath
/nix/bin/nix-store --validpath $storepath
fi
done) < /tmp/storepaths
echo registering successors...
(while read line; do
echo SUCC $line
/nix/bin/nix-store --successor $line
done) < /tmp/successors
echo setting init symlink...
rm -f $root/init
* 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
ln -s $sysvinitPath/sbin/init $root/init
echo setting up inittab...
rm -f $root/etc/inittab
echo "id:2:initdefault:" >> $root/etc/inittab
echo "si::bootwait:$initPath/bin/init" >> $root/etc/inittab
* 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
echo unmounting...
umount $root
echo syncing...
sync
echo halting...
/sbin/halt -d -f
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