2009-02-05 15:57:07 +00:00
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#! @shell@
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2006-11-02 22:48:01 +00:00
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2009-06-10 16:29:48 +00:00
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targetRoot=/mnt-root
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2008-08-26 12:45:36 +00:00
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2009-02-05 15:57:07 +00:00
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export LD_LIBRARY_PATH=@extraUtils@/lib
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2012-05-21 19:26:07 +00:00
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export PATH=@extraUtils@/bin:@extraUtils@/sbin
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2009-02-05 15:57:07 +00:00
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2008-08-26 12:45:36 +00:00
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2009-06-10 15:02:39 +00:00
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fail() {
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2010-01-04 18:04:57 +00:00
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if [ -n "$panicOnFail" ]; then exit 1; fi
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2011-09-13 18:49:50 +00:00
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2009-06-10 15:02:39 +00:00
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# If starting stage 2 failed, allow the user to repair the problem
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# in an interactive shell.
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cat <<EOF
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An error occured in stage 1 of the boot process, which must mount the
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root filesystem on \`$targetRoot' and then start stage 2. Press one
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2010-01-04 18:04:57 +00:00
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of the following keys:
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2009-06-10 15:02:39 +00:00
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i) to launch an interactive shell;
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f) to start an interactive shell having pid 1 (needed if you want to
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start stage 2's init manually); or
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*) to ignore the error and continue.
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EOF
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2009-08-10 09:20:05 +00:00
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read reply
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2011-09-13 18:49:50 +00:00
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2012-03-11 21:56:47 +00:00
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# Get the console from the kernel cmdline
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console=tty1
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for o in $(cat /proc/cmdline); do
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case $o in
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console=*)
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set -- $(IFS==; echo $o)
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2012-03-28 19:58:44 +00:00
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params=$2
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set -- $(IFS=,; echo $params)
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console=$1
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2012-03-11 21:56:47 +00:00
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;;
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esac
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done
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2008-08-16 00:59:12 +00:00
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case $reply in
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2008-08-26 12:45:36 +00:00
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f)
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2012-03-11 21:56:47 +00:00
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exec setsid @shell@ < /dev/$console >/dev/$console 2>/dev/$console ;;
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2008-08-26 12:45:36 +00:00
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i)
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2009-06-10 15:02:39 +00:00
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echo "Starting interactive shell..."
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2012-03-11 21:56:47 +00:00
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setsid @shell@ < /dev/$console >/dev/$console 2>/dev/$console || fail
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2008-08-26 12:45:36 +00:00
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;;
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*)
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2009-06-10 15:02:39 +00:00
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echo "Continuing...";;
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2008-08-16 00:59:12 +00:00
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esac
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}
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2012-05-21 19:26:07 +00:00
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trap 'fail' 0
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2008-08-08 17:07:04 +00:00
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2006-11-02 22:48:01 +00:00
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# Print a greeting.
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2006-11-02 22:50:30 +00:00
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echo
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2009-11-06 21:51:28 +00:00
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echo "[1;32m<<< NixOS Stage 1 >>>[0m"
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2006-11-02 22:50:30 +00:00
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echo
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2006-11-02 22:48:01 +00:00
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2006-11-12 18:48:47 +00:00
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2006-11-03 00:36:08 +00:00
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# Mount special file systems.
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2012-05-21 19:26:07 +00:00
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mkdir -p /etc
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touch /etc/fstab # to shut up mount
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touch /etc/mtab # to shut up mke2fs
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2006-11-27 01:35:34 +00:00
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mkdir -p /proc
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2006-11-04 00:18:22 +00:00
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mount -t proc none /proc
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2006-11-27 01:35:34 +00:00
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mkdir -p /sys
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2006-11-04 00:18:22 +00:00
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mount -t sysfs none /sys
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2010-06-01 15:53:24 +00:00
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mount -t tmpfs -o "mode=0755,size=@devSize@" none /dev
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2011-07-24 23:36:30 +00:00
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mkdir -p /run
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2011-10-27 17:34:16 +00:00
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mount -t tmpfs -o "mode=0755,size=@runSize@" none /run
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2006-11-03 00:36:08 +00:00
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2012-03-11 21:56:47 +00:00
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# Some console devices, for the interactivity
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mknod /dev/console c 5 1
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2012-03-11 23:04:29 +00:00
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mknod /dev/tty c 5 0
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2012-03-11 21:56:47 +00:00
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mknod /dev/tty1 c 4 1
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mknod /dev/ttyS0 c 4 64
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mknod /dev/ttyS1 c 4 65
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2008-03-22 16:02:57 +00:00
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2006-11-24 00:04:29 +00:00
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# Process the kernel command line.
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2009-08-27 11:57:43 +00:00
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export stage2Init=/init
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2006-11-24 00:04:29 +00:00
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for o in $(cat /proc/cmdline); do
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case $o in
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init=*)
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set -- $(IFS==; echo $o)
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stage2Init=$2
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;;
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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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2007-05-30 10:32:42 +00:00
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debug1) # stop right away
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2006-11-24 00:04:29 +00:00
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fail
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;;
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2007-05-30 10:32:42 +00:00
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debug1devices) # stop after loading modules and creating device nodes
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debug1devices=1
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;;
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debug1mounts) # stop after mounting file systems
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debug1mounts=1
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;;
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2011-04-08 14:42:35 +00:00
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stage1panic=1)
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2010-01-04 18:04:57 +00:00
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panicOnFail=1
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;;
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2010-08-07 14:16:18 +00:00
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root=*)
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# If a root device is specified on the kernel command
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# line, make it available through the symlink /dev/root.
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# Recognise LABEL= and UUID= to support UNetbootin.
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set -- $(IFS==; echo $o)
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if [ $2 = "LABEL" ]; then
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root="/dev/disk/by-label/$3"
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elif [ $2 = "UUID" ]; then
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root="/dev/disk/by-uuid/$3"
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else
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root=$2
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fi
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ln -s "$root" /dev/root
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;;
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2006-11-24 00:04:29 +00:00
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esac
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done
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2009-12-15 16:38:20 +00:00
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# Load the required kernel modules.
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2012-05-21 19:26:07 +00:00
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mkdir -p /lib
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ln -s @modulesClosure@/lib/modules /lib/modules
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2009-12-15 16:38:20 +00:00
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echo @extraUtils@/bin/modprobe > /proc/sys/kernel/modprobe
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for i in @kernelModules@; do
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2008-08-08 17:07:04 +00:00
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echo "loading module $(basename $i)..."
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2009-12-15 16:38:20 +00:00
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modprobe $i || true
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2006-12-19 22:12:44 +00:00
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done
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2006-11-03 09:45:06 +00:00
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2007-12-25 16:07:55 +00:00
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2008-08-08 15:49:57 +00:00
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# Create /dev/null.
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mknod /dev/null c 1 3
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2007-01-10 12:42:28 +00:00
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# Create device nodes in /dev.
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2009-12-15 16:38:20 +00:00
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echo "running udev..."
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2008-08-08 22:44:45 +00:00
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export UDEV_CONFIG_FILE=@udevConf@
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2009-08-11 21:12:37 +00:00
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mkdir -p /dev/.udev # !!! bug in udev?
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2010-05-16 20:40:04 +00:00
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mkdir -p /dev/.mdadm
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2007-01-10 12:42:28 +00:00
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udevd --daemon
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2010-05-16 19:02:45 +00:00
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udevadm trigger --action=add
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2012-03-19 15:10:39 +00:00
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udevadm settle || true
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2012-04-06 14:20:43 +00:00
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modprobe scsi_wait_scan || true
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udevadm settle || true
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2007-01-10 12:42:28 +00:00
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2011-12-28 21:46:45 +00:00
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# XXX: Use case usb->lvm will still fail, usb->luks->lvm is covered
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@preLVMCommands@
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2010-01-10 16:32:30 +00:00
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echo "starting device mapper and LVM..."
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2010-01-10 19:00:29 +00:00
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lvm vgchange -ay
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2011-09-13 18:49:50 +00:00
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2007-05-30 10:32:42 +00:00
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if test -n "$debug1devices"; then fail; fi
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2007-01-10 12:42:28 +00:00
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2009-06-18 16:47:00 +00:00
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@postDeviceCommands@
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2010-08-14 20:12:05 +00:00
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# Try to resume - all modules are loaded now, and devices exist
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if test -e /sys/power/tuxonice/resume; then
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if test -n "$(cat /sys/power/tuxonice/resume)"; then
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echo 0 > /sys/power/tuxonice/user_interface/enabled
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echo 1 > /sys/power/tuxonice/do_resume || echo "failed to resume..."
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fi
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fi
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if test -e /sys/power/resume -a -e /sys/power/disk; then
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echo "@resumeDevice@" > /sys/power/resume 2> /dev/null || echo "failed to resume..."
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echo shutdown > /sys/power/disk
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fi
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2008-11-28 12:03:56 +00:00
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# Return true if the machine is on AC power, or if we can't determine
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# whether it's on AC power.
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2009-02-01 19:53:59 +00:00
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onACPower() {
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2009-06-10 15:02:39 +00:00
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! test -d "/proc/acpi/battery" ||
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! ls /proc/acpi/battery/BAT[0-9]* > /dev/null 2>&1 ||
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! cat /proc/acpi/battery/BAT*/state | grep "^charging state" | grep -q "discharg"
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2008-11-28 12:03:56 +00:00
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}
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2007-02-06 16:53:36 +00:00
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2009-02-01 19:53:59 +00:00
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# Check the specified file system, if appropriate.
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checkFS() {
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# Only check block devices.
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if ! test -b "$device"; then return 0; fi
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2010-06-01 15:53:24 +00:00
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FSTYPE=$(blkid -o value -s TYPE "$device" || true)
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2009-06-15 15:50:36 +00:00
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# Don't check ROM filesystems.
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if test "$FSTYPE" = iso9660 -o "$FSTYPE" = udf; then return 0; fi
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2009-06-15 16:47:37 +00:00
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# Optionally, skip fsck on journaling filesystems. This option is
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# a hack - it's mostly because e2fsck on ext3 takes much longer to
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# recover the journal than the ext3 implementation in the kernel
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# does (minutes versus seconds).
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if test -z "@checkJournalingFS@" -a \
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\( "$FSTYPE" = ext3 -o "$FSTYPE" = ext4 -o "$FSTYPE" = reiserfs \
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-o "$FSTYPE" = xfs -o "$FSTYPE" = jfs \)
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then
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return 0
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fi
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2011-09-13 18:49:50 +00:00
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2009-02-01 19:53:59 +00:00
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# Don't run `fsck' if the machine is on battery power. !!! Is
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# this a good idea?
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if ! onACPower; then
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2009-06-10 15:02:39 +00:00
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echo "on battery power, so no \`fsck' will be performed on \`$device'"
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2009-02-01 19:53:59 +00:00
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return 0
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fi
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2009-06-15 15:50:36 +00:00
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2010-07-07 14:25:16 +00:00
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FSTAB_FILE="/etc/mtab" fsck -V -C -a "$device"
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2009-02-01 19:53:59 +00:00
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fsckResult=$?
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if test $(($fsckResult | 2)) = $fsckResult; then
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echo "fsck finished, rebooting..."
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sleep 3
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reboot
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2007-02-06 16:53:36 +00:00
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fi
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2009-02-01 19:53:59 +00:00
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if test $(($fsckResult | 4)) = $fsckResult; then
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echo "$device has unrepaired errors, please fix them manually."
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fail
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fi
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2008-11-28 12:03:56 +00:00
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2009-02-01 19:53:59 +00:00
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if test $fsckResult -ge 8; then
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echo "fsck on $device failed."
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fail
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fi
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2008-11-28 12:03:56 +00:00
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2009-02-01 19:53:59 +00:00
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return 0
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}
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2008-11-28 12:03:56 +00:00
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2007-02-06 16:53:36 +00:00
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2009-02-01 19:53:59 +00:00
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# Function for mounting a file system.
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mountFS() {
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local device="$1"
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local mountPoint="$2"
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local options="$3"
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local fsType="$4"
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checkFS "$device"
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2009-06-10 15:02:39 +00:00
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mkdir -p "/mnt-root$mountPoint" || true
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2010-01-06 00:25:14 +00:00
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# For CIFS mounts, retry a few times before giving up.
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local n=0
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while true; do
|
2011-10-15 21:01:30 +00:00
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if [ "$fsType" = "nfs" ]; then
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nfsmount "$device" "/mnt-root$mountPoint" && break
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else
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mount -t "$fsType" -o "$options" "$device" "/mnt-root$mountPoint" && break
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2010-01-06 00:25:14 +00:00
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fi
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if [ "$fsType" != cifs -o "$n" -ge 10 ]; then fail; break; fi
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echo "retrying..."
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n=$((n + 1))
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done
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2007-02-06 16:53:36 +00:00
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}
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2006-11-12 18:48:47 +00:00
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# Try to find and mount the root device.
|
2008-08-08 15:49:57 +00:00
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mkdir /mnt-root
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2006-11-12 18:48:47 +00:00
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2012-05-21 19:26:07 +00:00
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exec 3< @fsInfo@
|
2008-08-08 23:01:30 +00:00
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|
2012-05-21 19:26:07 +00:00
|
|
|
|
while read -u 3 mountPoint; do
|
|
|
|
|
read -u 3 device
|
|
|
|
|
read -u 3 fsType
|
|
|
|
|
read -u 3 options
|
2008-08-08 23:01:30 +00:00
|
|
|
|
|
|
|
|
|
# !!! Really quick hack to support bind mounts, i.e., where the
|
|
|
|
|
# "device" should be taken relative to /mnt-root, not /. Assume
|
2009-02-01 19:53:59 +00:00
|
|
|
|
# that every device that starts with / but doesn't start with /dev
|
|
|
|
|
# is a bind mount.
|
2009-06-22 14:44:48 +00:00
|
|
|
|
pseudoDevice=
|
2008-08-08 23:01:30 +00:00
|
|
|
|
case $device in
|
|
|
|
|
/dev/*)
|
|
|
|
|
;;
|
2009-06-18 16:47:00 +00:00
|
|
|
|
//*)
|
|
|
|
|
# Don't touch SMB/CIFS paths.
|
2009-06-22 14:44:48 +00:00
|
|
|
|
pseudoDevice=1
|
2009-06-18 16:47:00 +00:00
|
|
|
|
;;
|
2008-08-08 23:01:30 +00:00
|
|
|
|
/*)
|
|
|
|
|
device=/mnt-root$device
|
|
|
|
|
;;
|
2009-06-22 14:44:48 +00:00
|
|
|
|
*)
|
|
|
|
|
# Not an absolute path; assume that it's a pseudo-device
|
|
|
|
|
# like an NFS path (e.g. "server:/path").
|
|
|
|
|
pseudoDevice=1
|
|
|
|
|
;;
|
2008-08-08 23:01:30 +00:00
|
|
|
|
esac
|
2007-02-06 16:53:36 +00:00
|
|
|
|
|
2008-08-08 23:15:36 +00:00
|
|
|
|
# USB storage devices tend to appear with some delay. It would be
|
|
|
|
|
# great if we had a way to synchronously wait for them, but
|
|
|
|
|
# alas... So just wait for a few seconds for the device to
|
|
|
|
|
# appear. If it doesn't appear, try to mount it anyway (and
|
|
|
|
|
# probably fail). This is a fallback for non-device "devices"
|
2009-06-22 14:44:48 +00:00
|
|
|
|
# that we don't properly recognise.
|
|
|
|
|
if test -z "$pseudoDevice" -a ! -e $device; then
|
2008-08-08 23:15:36 +00:00
|
|
|
|
echo -n "waiting for device $device to appear..."
|
2012-05-21 19:26:07 +00:00
|
|
|
|
for try in $(seq 1 20); do
|
2008-08-08 23:15:36 +00:00
|
|
|
|
sleep 1
|
|
|
|
|
if test -e $device; then break; fi
|
|
|
|
|
echo -n "."
|
|
|
|
|
done
|
|
|
|
|
echo
|
|
|
|
|
fi
|
|
|
|
|
|
2012-04-06 14:20:43 +00:00
|
|
|
|
# Wait once more for the udev queue to empty, just in case it's
|
|
|
|
|
# doing something with $device right now.
|
|
|
|
|
udevadm settle || true
|
|
|
|
|
|
2008-08-08 23:01:30 +00:00
|
|
|
|
echo "mounting $device on $mountPoint..."
|
2007-02-06 16:53:36 +00:00
|
|
|
|
|
2008-08-08 23:01:30 +00:00
|
|
|
|
mountFS "$device" "$mountPoint" "$options" "$fsType"
|
|
|
|
|
done
|
2006-11-03 00:36:08 +00:00
|
|
|
|
|
2008-01-24 16:56:09 +00:00
|
|
|
|
|
2009-06-18 16:03:18 +00:00
|
|
|
|
@postMountCommands@
|
|
|
|
|
|
|
|
|
|
|
2008-08-08 22:44:45 +00:00
|
|
|
|
# Stop udevd.
|
2012-04-12 18:01:19 +00:00
|
|
|
|
udevadm control --exit || true
|
2011-09-22 08:26:58 +00:00
|
|
|
|
|
|
|
|
|
# Kill any remaining processes, just to be sure we're not taking any
|
|
|
|
|
# with us into stage 2.
|
2012-05-21 19:26:07 +00:00
|
|
|
|
pkill -9 -v 1
|
2008-08-08 22:44:45 +00:00
|
|
|
|
|
|
|
|
|
|
2007-05-30 10:32:42 +00:00
|
|
|
|
if test -n "$debug1mounts"; then fail; fi
|
|
|
|
|
|
2006-11-24 00:04:29 +00:00
|
|
|
|
|
2009-12-15 18:31:21 +00:00
|
|
|
|
# Restore /proc/sys/kernel/modprobe to its original value.
|
|
|
|
|
echo /sbin/modprobe > /proc/sys/kernel/modprobe
|
|
|
|
|
|
|
|
|
|
|
2010-06-01 15:53:24 +00:00
|
|
|
|
# Start stage 2. `switch_root' deletes all files in the ramfs on the
|
|
|
|
|
# current root. It also moves the /proc, /sys and /dev mounts over to
|
|
|
|
|
# the new root. Note that $stage2Init might be an absolute symlink,
|
|
|
|
|
# in which case "-e" won't work because we're not in the chroot yet.
|
2010-07-22 14:40:29 +00:00
|
|
|
|
if ! test -e "$targetRoot/$stage2Init" -o -L "$targetRoot/$stage2Init"; then
|
|
|
|
|
echo "stage 2 init script ($targetRoot/$stage2Init) not found"
|
|
|
|
|
fail
|
|
|
|
|
fi
|
2009-06-10 15:02:39 +00:00
|
|
|
|
|
2011-07-24 23:36:30 +00:00
|
|
|
|
mkdir -m 0755 -p $targetRoot/proc $targetRoot/sys $targetRoot/dev $targetRoot/run
|
|
|
|
|
|
|
|
|
|
# `switch_root' doesn't move /run yet, so we have to do it ourselves.
|
|
|
|
|
mount --bind /run $targetRoot/run
|
2010-06-01 15:53:24 +00:00
|
|
|
|
|
|
|
|
|
exec switch_root "$targetRoot" "$stage2Init"
|
2008-08-16 00:59:12 +00:00
|
|
|
|
|
2009-06-10 15:02:39 +00:00
|
|
|
|
fail # should never be reached
|