207 lines
4.1 KiB
Bash
207 lines
4.1 KiB
Bash
#! @shell@
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# !!! copied from stage 1; remove duplication
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# Print a greeting.
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echo
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echo "<<< NixOS Stage 2 >>>"
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echo
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# Set the PATH.
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export PATH=/empty
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for i in @startPath@; do
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PATH=$PATH:$i/bin
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if test -e $i/sbin; then
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PATH=$PATH:$i/sbin
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fi
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done
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# Mount special file systems.
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needWritableDir() {
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if test -n "@readOnlyRoot@"; then
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mount -t tmpfs -o "mode=$2" none $1 $3
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else
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mkdir -m $2 -p $1
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fi
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}
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needWritableDir /etc 0755 -n # to shut up mount
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test -e /etc/fstab || touch /etc/fstab # idem
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mount -n -t proc none /proc
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cat /proc/mounts > /etc/mtab
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# Process the kernel command line.
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for o in $(cat /proc/cmdline); do
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case $o in
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debugtrace)
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# Show each command.
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set -x
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;;
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debug2)
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echo "Debug shell called from @out@"
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exec @shell@
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;;
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S|s|single)
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# !!! argh, can't pass a startup event to Upstart yet.
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exec @shell@
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;;
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esac
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done
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# More special file systems, initialise required directories.
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mount -t sysfs none /sys
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mount -t tmpfs -o "mode=0755" none /dev
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needWritableDir /tmp 01777
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needWritableDir /var 0755
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needWritableDir /nix/var 0755
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mkdir -m 0755 -p /nix/var/nix/db
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mkdir -m 0755 -p /nix/var/nix/gcroots
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mkdir -m 0755 -p /nix/var/nix/temproots
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mkdir -m 0755 -p /var/log
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ln -sf /nix/var/nix/profiles /nix/var/nix/gcroots/
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# Set up the statically computed bits of /etc.
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rm -f /etc/static
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ln -s @etc@/etc /etc/static
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for i in $(cd /etc/static && find * -type l); do
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mkdir -p /etc/$(dirname $i)
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rm -f /etc/$i
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ln -s /etc/static/$i /etc/$i
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done
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# Ensure that the module tools can find the kernel modules.
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export MODULE_DIR=@kernel@/lib/modules/
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# Miscellaneous cleanup.
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rm -rf /var/run
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mkdir -m 0755 -p /var/run
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echo -n > /var/run/utmp # must exist
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chmod 664 /var/run/utmp
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# Start udev.
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udevd --daemon
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# Let udev create device nodes for all modules that have already been
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# loaded into the kernel (or for which support is built into the
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# kernel).
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udevtrigger
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udevsettle # wait for udev to finish
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# !!! Hack - should be done with udev rules.
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chmod 666 /dev/null
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# Enable a password-less root login.
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source @accounts@
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if ! test -e /etc/passwd; then
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if test -n "@readOnlyRoot@"; then
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rootHome=/
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else
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rootHome=/home/root
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mkdir -p $rootHome
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fi
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createUser root '' 0 0 'System administrator' $rootHome/var/empty @shell@
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fi
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if ! test -e /etc/group; then
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echo "root:*:0" > /etc/group
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fi
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# Set up Nix accounts.
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if test -z "@readOnlyRoot@"; then
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for i in $(seq 1 10); do
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account=nixbld$i
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if ! userExists $account; then
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createUser $account x \
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$((i + 30000)) 30000 \
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'Nix build user' /var/empty /noshell
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fi
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accounts="$accounts${accounts:+,}$account"
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done
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if ! grep -q "^nixbld:" /etc/group; then
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echo "nixbld:*:30000:$accounts" >> /etc/group
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fi
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mkdir -p /nix/etc/nix
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cat > /nix/etc/nix/nix.conf <<EOF
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build-users-group = nixbld
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EOF
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chown root.nixbld /nix/store
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chmod 1775 /nix/store
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fi
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# Set up the Upstart jobs.
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export UPSTART_CFG_DIR=/etc/event.d
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rm -f /etc/event.d
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ln -sf @upstartJobs@/etc/event.d /etc/event.d
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# Additional path for the interactive shell.
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PATH=@wrapperDir@:@fullPath@/bin:@fullPath@/sbin
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cat > /etc/profile <<EOF
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export PATH=$PATH
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export MODULE_DIR=$MODULE_DIR
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export NIX_CONF_DIR=/nix/etc/nix
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if test "\$USER" != root; then
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export NIX_REMOTE=daemon
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fi
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source $(dirname $(readlink -f $(type -tp nix-env)))/../etc/profile.d/nix.sh
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alias ll="ls -l"
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if test -f /etc/profile.local; then
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source /etc/profile.local
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fi
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EOF
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# Make a few setuid programs work.
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wrapperDir=@wrapperDir@
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if test -d $wrapperDir; then rm -f $wrapperDir/*; fi
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mkdir -p $wrapperDir
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for i in passwd su; do
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program=$(type -tp $i)
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cp $(type -tp setuid-wrapper) $wrapperDir/$i
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echo -n $program > $wrapperDir/$i.real
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chown root.root $wrapperDir/$i
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chmod 4755 $wrapperDir/$i
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done
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# Set the host name.
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hostname @hostName@
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# Start an interactive shell.
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#exec @shell@
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# Start Upstart's init.
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exec @upstart@/sbin/init -v
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