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beispiel

SNIPPET_TEXT:

1. #! /bin/sh
2. ### BEGIN INIT INFO
3. # Provides:          mountkernfs
4. # Required-Start:
5. # Required-Stop:
6. # Should-Start:      glibc
7. # Default-Start:     S
8. # Default-Stop:
9. # Short-Description: Mount kernel virtual file systems.
10. # Description:       Mount initial set of virtual filesystems the kernel
11. #                    provides and that are required by everything.
12. ### END INIT INFO
13.  
14. PATH=/lib/init:/sbin:/bin
15. . /lib/init/vars.sh
16.  
17. . /lib/lsb/init-functions
18. . /lib/init/mount-functions.sh
19.  
20. [ -f /etc/default/tmpfs ] && . /etc/default/tmpfs
21.  
22. do_start () {
23.         #
24.         # Get some writable area available before the root is checked
25.         # and remounted.
26.         #
27.         RW_OPT=
28.         [ "${RW_SIZE:=$TMPFS_SIZE}" ] && RW_OPT=",size=$RW_SIZE"
29.         domount tmpfs "" /lib/init/rw tmpfs -omode=0755,nosuid$RW_OPT
30.         touch /lib/init/rw/.ramfs
31.  
32.         #
33.         # Mount proc filesystem on /proc
34.         #
35.         domount proc "" /proc proc -onodev,noexec,nosuid
36.  
37.         #
38.         # Mount sysfs on /sys
39.         #
40.         # Only mount sysfs if it is supported (kernel >= 2.6)
41.         if grep -E -qs "sysfs\$" /proc/filesystems
42.         then
43.                 domount sysfs "" /sys sysfs -onodev,noexec,nosuid
44.         fi
45.  
46.         # Mount /var/run and /var/lock as tmpfs if enabled
47.         if [ yes = "$RAMRUN" ] ; then
48.                 RUN_OPT=
49.                 [ "${RUN_SIZE:=$TMPFS_SIZE}" ] && RUN_OPT=",size=$RUN_SIZE"
50.                 domount tmpfs "" /var/run varrun -omode=0755,nosuid$RUN_OPT
51.                 touch /var/run/.ramfs
52.         fi
53.         if [ yes = "$RAMLOCK" ] ; then
54.                 LOCK_OPT=
55.                 [ "${LOCK_SIZE:=$TMPFS_SIZE}" ] && LOCK_OPT=",size=$LOCK_SIZE"
56.                 domount tmpfs "" /var/lock varlock -omode=1777,nodev,noexec,nosuid$LOCK_OPT
57.                 touch /var/lock/.ramfs
58.         fi
59.  
60.         #
61.         # Mount usbfs/usbdevfs if /proc/bus/usb is present.
62.         #
63.         # Usbfs/usbdevfs is used for USB related binaries/libraries.
64.         # "usbfs" and "usbdevfs" are the exact same filesystem.
65.         # "usbdevfs" was renamed to "usbfs" by linux usb developers,
66.         # because people sometimes mistook it as a part of devfs. Usbfs
67.         # will be superseded by other filesystems (e.g. sysfs), and when
68.         # it becomes obsolete the mount action below should be removed.
69.         #
70.         if [ -d /proc/bus/usb ]
71.         then
72.                 domount usbfs usbdevfs /proc/bus/usb usbfs -onodev,noexec,nosuid,devgid=1001,devmode=664
73.         fi
74. }
75.  
76. case "$1" in
77.   "")
78.         echo "Warning: mountkernfs should be called with the 'start' argument." >&2
79.         do_start
80.         ;;
81.   start)
82.         do_start
83.         ;;
84.   restart|reload|force-reload)
85.         echo "Error: argument '$1' not supported" >&2
86.         exit 3
87.         ;;
88.   stop)
89.         # No-op
90.         ;;
91.   *)
92.         echo "Usage: mountkernfs [start|stop]" >&2
93.         exit 3
94.         ;;
95. esac

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