Magellan Linux

  • Back to homepage
    • /[pkg-src]/tags/udev-185-r1/udev.rc

    Annotation of /tags/udev-185-r1/udev.rc

    Parent Directory Parent Directory | Revision Log Revision Log

    Revision 1814 - (hide annotations) (download)
    Tue Jun 26 17:12:14 2012 UTC (11 years, 10 months ago) by niro
    File size: 5291 byte(s) 
    tagged 'udev-185-r1'
    1 niro 1058 #!/bin/bash
    2 niro 1813 # $Id$
    3 niro 1058
    4     udev_version()
    5     {
    6     local version=0
    7    
    8     if [[ -x /sbin/udev ]]
    9     then
    10     version=$(/sbin/udev -V)
    11     elif [[ -x /sbin/udevd ]]
    12     then
    13     version=$(/sbin/udevd --version)
    14 niro 1813 elif [[ -x /lib/udev/udevd ]]
    15     then
    16     version=$(/lib/udev/udevd --version)
    17     elif [[ -x /usr/lib/systemd/systemd-udevd ]]
    18     then
    19     version=$(/usr/lib/systemd/systemd-udev --version)
    20 niro 1058 fi
    21    
    22 niro 1813 # We need it without a leading '0', else bash do the wrong thing
    23     version=${version##0}
    24     # Older udev's will print nothing
    25     [[ -z ${version} ]] && version=0
    26    
    27 niro 1058 echo "${version}"
    28     }
    29    
    30     populate_udev()
    31     {
    32     local opts
    33    
    34     # tell modprobe.sh to be verbose to $CONSOLE
    35     echo CONSOLE=${CONSOLE} > /dev/.udev_populate
    36    
    37     # populate /dev with devices already found by the kernel
    38 niro 1289 rc_print " Populating /dev with existing devices through uevents ..."
    39 niro 1058 if [[ ${RC_COLDPLUG} = yes ]]
    40     then
    41 niro 1813 udevadm trigger
    42 niro 1058 else
    43     # do not run any init-scripts
    44 niro 1813 udevadm control --env do_not_run_plug_service=1
    45 niro 1058
    46     # only create device nodes
    47 niro 1813 udevadm trigger --attr-match=dev
    48 niro 1058
    49     # run persistent-net stuff
    50 niro 1813 udevadm trigger --subsystem-match=net
    51 niro 1058 fi
    52     evaluate_retval
    53    
    54     # loop until everything is finished
    55 niro 1289 rc_print " Letting udev process events ..."
    56 niro 1813 udevadm settle --timeout=60
    57 niro 1058 evaluate_retval
    58    
    59     # unset this variable
    60 niro 1813 udevadm control --env do_not_run_plug_service=
    61 niro 1058
    62     rm -f /dev/.udev_populate
    63     return 0
    64     }
    65    
    66     seed_dev()
    67     {
    68     # seed /dev with some things that we know we need
    69 niro 1289 rc_print " Seeding /dev with needed nodes ..."
    70 niro 1058 (
    71     [ ! -c /dev/console ] && mknod /dev/console c 5 1
    72     [ ! -c /dev/tty1 ] && mknod /dev/tty1 c 4 1
    73     [ ! -c /dev/null ] && mknod /dev/null c 1 3
    74    
    75     # create kmsg too, so udev can add its start-message to dmesg
    76     [ -c /dev/kmsg ] || mknod -m 660 /dev/kmsg c 1 11
    77    
    78     # copy over any persistant things
    79     if [[ -d /lib/udev/devices ]]
    80     then
    81     cp -RPp /lib/udev/devices/* /dev 2>/dev/null
    82     fi
    83    
    84     # not provided by sysfs but needed
    85     ln -snf /proc/self/fd /dev/fd
    86     ln -snf fd/0 /dev/stdin
    87     ln -snf fd/1 /dev/stdout
    88     ln -snf fd/2 /dev/stderr
    89     [[ -e /proc/kcore ]] && ln -snf /proc/kcore /dev/core
    90    
    91     # create problematic directories
    92     mkdir -p /dev/pts /dev/shm
    93     )
    94     evaluate_retval
    95     }
    96    
    97     # main function
    98     start_devicemanager()
    99     {
    100 niro 1813 local udev_prefix=""
    101     local udev_daemon=""
    102    
    103     # get the right daemon and prefix for newer udev/systemd-udev installations
    104     if [ -x /sbin/udevd ]
    105     then
    106     udev_daemon="/sbin/udevd"
    107     udev_prefix=""
    108     elif [ -x /lib/udev/udevd ]
    109     then
    110     udev_daemon="/lib/udev/udevd"
    111     udev_prefix=""
    112     elif [ -x /usr/lib/systemd/systemd-udevd ]
    113     then
    114     udev_daemon="/usr/lib/systemd/systemd-udevd"
    115     udev_prefix="/usr"
    116     fi
    117    
    118 niro 1058 # check if /dev/console exists outside tmpfs
    119     [ -c /dev/console ] ; need_redirect=$?
    120    
    121     # create a ramdisk for populating udev
    122 niro 1725 if [[ -z $(grep '[[:space:]]/dev[[:space:]]' /proc/mounts | cut -d ' ' -f2) ]]
    123     then
    124     rc_print "Mounting udev at /dev ..."
    125     # many video drivers needed exec access
    126     fstype=ramfs
    127     # tmpfs was suggested by Greg Kroah-Hartman
    128     kernel_supports_fs tmpfs && fstype=tmpfs
    129     # mount devtmpfs if supported
    130     kernel_supports_fs devtmpfs && fstype=devtmpfs
    131     mount -n -t ${fstype} dev /dev -o exec,nosuid,mode=0755,size=10M
    132     evaluate_retval
    133     fi
    134 niro 1058
    135 niro 1813 # if a device tarball exists load it but only if it is activated in the config
    136 niro 1289 rc_print "Configurating system to use udev ..."
    137 niro 1058 if [[ ${RC_DEVICE_TARBALL} = yes ]]
    138     then
    139 niro 1813 if [[ -f ${udev_prefix}/lib/udev/state/devices.tar.bz2 ]]
    140     then
    141     rc_print " Populating /dev with saved device nodes ..."
    142     tar -jxpf ${udev_prefix}/lib/udev/state/devices.tar.bz2 -C /dev
    143     evaluate_retval
    144     fi
    145 niro 1058 fi
    146    
    147 niro 1724 # other needed device nodes with udev
    148 niro 1058 seed_dev
    149    
    150     if [ -e /proc/sys/kernel/hotplug ]
    151     then
    152 niro 1289 rc_print " Using netlink for hotplug events ..."
    153 niro 1058 echo "" > /proc/sys/kernel/hotplug
    154     evaluate_retval
    155     else
    156 niro 1289 rc_print ${COLYELLOW}" Kernel was not compiled with hotplug support !"
    157 niro 1058 print_status failure
    158     fi
    159    
    160     # load unix domain sockets if built as module
    161     if [ -e /proc/modules ]
    162     then
    163     modprobe -q unix 2>/dev/null
    164     fi
    165    
    166 niro 1289 rc_print " Starting udevd daemon ..."
    167 niro 1058 if [ ${need_redirect} -eq 1 ]
    168     then
    169     # we need to open fds 0 1 2
    170 niro 1813 start-stop-daemon --start --exec "${udev_daemon}" -- --daemon </dev/console >/dev/console 2>/dev/console
    171 niro 1058 else
    172 niro 1813 start-stop-daemon --start --exec "${udev_daemon}" -- --daemon
    173 niro 1058 fi
    174     evaluate_retval
    175    
    176     # write root_link rule
    177 niro 1813 if [ -x ${udev_prefix}/lib/udev/write_root_link_rule ]
    178     then
    179     ${udev_prefix}/lib/udev/write_root_link_rule
    180     fi
    181    
    182 niro 1058 # populate udev device nodes
    183     populate_udev
    184    
    185     # create nodes that udev can't
    186 niro 1289 rc_print " Finializing udev configuration ..."
    187 niro 1058 [[ -x /sbin/dmsetup ]] && /sbin/dmsetup mknodes &>/dev/null
    188     [[ -x /sbin/lvm ]] && /sbin/lvm vgscan -P --mknodes --ignorelockingfailure &>/dev/null
    189     [[ -x /sbin/evms_activate ]] && /sbin/evms_activate -q &>/dev/null
    190     print_status success
    191    
    192     # same thing as /dev/.devfsd
    193     touch /dev/.udev
    194     }
    195    
    196     stop_devicemanager()
    197     {
    198 niro 1813 local udev_daemon=""
    199    
    200     # get the right daemon and prefix for newer udev/systemd-udev installations
    201     if [ -x /sbin/udevd ]
    202     then
    203     udev_daemon="/sbin/udevd"
    204     elif [ -x /lib/udev/udevd ]
    205     then
    206     udev_daemon="/lib/udev/udevd"
    207     elif [ -x /usr/lib/systemd/systemd-udevd ]
    208     then
    209     udev_daemon="/usr/lib/systemd/systemd-udevd"
    210     fi
    211    
    212 niro 1289 rc_print "Stopping udevd daemon ..."
    213 niro 1813 start-stop-daemon --stop --exec "${udev_daemon}"
    214 niro 1058 evaluate_retval
    215     }