/etc/init.d/mountkernfs.sh is in initscripts 2.88dsf-41+deb7u1.
This file is owned by root:root, with mode 0o755.
The actual contents of the file can be viewed below.
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### BEGIN INIT INFO
# Provides: mountkernfs
# Required-Start:
# Required-Stop:
# Should-Start: glibc
# Default-Start: S
# Default-Stop:
# Short-Description: Mount kernel virtual file systems.
# Description: Mount initial set of virtual filesystems the kernel
# provides and that are required by everything.
### END INIT INFO
PATH=/sbin:/bin
. /lib/init/vars.sh
. /lib/init/tmpfs.sh
. /lib/lsb/init-functions
. /lib/init/mount-functions.sh
# May be run several times, so must be idempotent.
# $1: Mount mode, to allow for remounting and mtab updating
mount_filesystems () {
MNTMODE="$1"
#
# Mount tmpfs on /run and/or /run/lock
#
mount_run "$MNTMODE"
mount_lock "$MNTMODE"
#
# Mount proc filesystem on /proc
#
domount "$MNTMODE" proc "" /proc proc "-onodev,noexec,nosuid"
#
# Mount sysfs on /sys
#
# Only mount sysfs if it is supported (kernel >= 2.6)
if grep -E -qs "sysfs\$" /proc/filesystems
then
domount "$MNTMODE" sysfs "" /sys sysfs "-onodev,noexec,nosuid"
fi
}
case "$1" in
"")
echo "Warning: mountkernfs should be called with the 'start' argument." >&2
mount_filesystems mount_noupdate
;;
start)
mount_filesystems mount_noupdate
;;
mtab)
mount_filesystems mtab
;;
restart|reload|force-reload)
mount_filesystems remount
;;
stop)
# No-op
;;
*)
echo "Usage: mountkernfs [start|stop]" >&2
exit 3
;;
esac
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