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https://github.com/NixOS/nixpkgs.git
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f25ce41c18
the flag "safemode" is specified on the kernel command line, also disable the hardware scan. * Option boot.kernelModules to specify a set of modules to be loaded in stage 2 (in addition to the initrd modules in boot.initrd.kernelModules). svn path=/nixos/trunk/; revision=7466
108 lines
2.0 KiB
Bash
108 lines
2.0 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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setPath() {
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local dirs="$1"
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export PATH=/empty
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for i in $dirs; do
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PATH=$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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}
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setPath "@path@"
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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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mkdir -m 0755 -p /etc/nixos
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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 $o in
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debugtrace)
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# Show each command.
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set -x
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;;
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debug2)
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echo "Debug shell called from @out@"
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exec @shell@
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;;
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S|s|single)
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# !!! argh, can't pass a startup event to Upstart yet.
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exec @shell@
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;;
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safemode)
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safeMode=1
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;;
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esac
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done
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# More special file systems, initialise required directories.
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mount -t sysfs none /sys
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mount -t tmpfs -o "mode=0755" none /dev
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needWritableDir /tmp 01777
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needWritableDir /var 0755
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needWritableDir /nix/var 0755
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needWritableDir /root 0700
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# Miscellaneous boot time cleanup.
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rm -rf /var/run
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if test -n "$safeMode"; then
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touch /var/run/safemode
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fi
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# Create the minimal device nodes needed before we run udev.
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mknod -m 0666 /dev/null c 1 3
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mknod -m 0644 /dev/urandom c 1 9 # needed for passwd
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# Run the script that performs all configuration activation that does
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# not have to be done at boot time.
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@activateConfiguration@
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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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# Start an interactive shell.
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#exec @shell@
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# Start Upstart's init.
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export UPSTART_CFG_DIR=/etc/event.d
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setPath "@upstartPath@"
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exec @upstart@/sbin/init -v
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