Contents of /trunk/busybox/mdev.rc
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Sun Aug 22 16:43:06 2010 UTC (14 years, 1 month ago) by niro
File size: 1902 byte(s)
Sun Aug 22 16:43:06 2010 UTC (14 years, 1 month ago) by niro
File size: 1902 byte(s)
-added
1 | #!/bin/sh |
2 | # $Header: /root/magellan-cvs/src/busybox/mdev.rc,v 1.1 2010-08-22 16:43:06 niro Exp $ |
3 | |
4 | seed_dev() |
5 | { |
6 | # seed /dev with some things that we know we need |
7 | rc_print " Seeding /dev with needed nodes ..." |
8 | ( |
9 | [ ! -c /dev/console ] && mknod /dev/console c 5 1 |
10 | [ ! -c /dev/tty1 ] && mknod /dev/tty1 c 4 1 |
11 | [ ! -c /dev/null ] && mknod /dev/null c 1 3 |
12 | |
13 | # create kmsg too, so udev can add its start-message to dmesg |
14 | [ -c /dev/kmsg ] || mknod -m 660 /dev/kmsg c 1 11 |
15 | |
16 | # copy over any persistant things |
17 | if [[ -d /lib/udev/devices ]] |
18 | then |
19 | cp -RPp /lib/udev/devices/* /dev 2>/dev/null |
20 | fi |
21 | |
22 | # not provided by sysfs but needed |
23 | ln -snf /proc/self/fd /dev/fd |
24 | ln -snf fd/0 /dev/stdin |
25 | ln -snf fd/1 /dev/stdout |
26 | ln -snf fd/2 /dev/stderr |
27 | [[ -e /proc/kcore ]] && ln -snf /proc/kcore /dev/core |
28 | |
29 | # create problematic directories |
30 | mkdir -p /dev/pts /dev/shm |
31 | ) |
32 | evaluate_retval |
33 | } |
34 | |
35 | # main functions |
36 | start_devicemanager() |
37 | { |
38 | # create a ramdisk for populating mdev |
39 | rc_print "Mounting mdev at /dev ..." |
40 | # many video drivers needed exec access |
41 | fstype=ramfs |
42 | # tmpfs was suggested by Greg Kroah-Hartman |
43 | kernel_supports_fs tmpfs && fstype=tmpfs |
44 | # mount devtmpfs if supported |
45 | kernel_supports_fs devtmpfs && fstype=devtmpfs |
46 | mount -n -t ${fstype} mdev /dev -o exec,nosuid,mode=0755,size=1024 |
47 | evaluate_retval |
48 | |
49 | # other eeded device nodes with udev |
50 | seed_dev |
51 | |
52 | if [ -e /proc/sys/kernel/hotplug ] |
53 | then |
54 | rc_print " Using mdev for hotplug events ..." |
55 | echo "/sbin/mdev" > /proc/sys/kernel/hotplug |
56 | evaluate_retval |
57 | else |
58 | rc_print ${COLYELLOW}" Kernel was not compiled with hotplug support !" |
59 | print_status failure |
60 | fi |
61 | |
62 | # load unix domain sockets if built as module |
63 | if [ -e /proc/modules ] |
64 | then |
65 | modprobe -q unix 2>/dev/null |
66 | fi |
67 | |
68 | rc_print " Starting mdev ..." |
69 | /sbin/mdev -s |
70 | evaluate_retval |
71 | |
72 | # same thing as /dev/.devfsd |
73 | touch /dev/.mdev |
74 | } |
75 | |
76 | stop_devicemanager() |
77 | { |
78 | return 0 |
79 | } |