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- #!/bin/sh -e
- ### BEGIN INIT INFO
- # Provides: udev
- # Required-Start: mountvirtfs
- # Required-Stop:
- # Default-Start: S
- # Default-Stop:
- # Short-Description: Start udevd, populate /dev and load drivers.
- ### END INIT INFO
- export TZ=/etc/localtime
- [ -d /sys/class ] || exit 1
- [ -r /proc/mounts ] || exit 1
- [ -x /sbin/udevd ] || exit 1
- [ -f /etc/default/udev ] && . /etc/default/udev
- [ -f /etc/udev/udev.conf ] && . /etc/udev/udev.conf
- kill_udevd() {
- if [ -x /sbin/pidof ]; then
- pid=`/sbin/pidof -x udevd`
- [ -n "$pid" ] && kill $pid
- fi
- }
- export ACTION=add
- # propagate /dev from /sys
- echo "Starting udev"
- # mount the tmpfs on /dev, if not already done
- LANG=C awk "\$2 == \"/dev\" && \$3 == \"tmpfs\" { exit 1 }" /proc/mounts && {
- mount -n -o mode=0755 -t tmpfs none "/dev"
- mkdir -m 0755 /dev/pts
- mkdir -m 1777 /dev/shm
- }
- if [ "$DEVCACHE" != "" ]; then
- # Invalidate udev cache if the kernel or its bootargs/cmdline have changed
- [ -x /bin/uname ] && /bin/uname -mrspv > /tmp/uname || touch /tmp/uname
- [ -r /proc/cmdline ] && cat /proc/cmdline > /tmp/cmdline || touch /tmp/cmdline
- [ -r /proc/atags ] && cat /proc/atags > /tmp/atags || touch /tmp/atags
- if [ -e $DEVCACHE ] && \
- cmp -s /tmp/uname /etc/udev/saved.uname && \
- cmp -s /tmp/cmdline /etc/udev/saved.cmdline && \
- cmp -s /tmp/atags /etc/udev/saved.atags; then
- (cd /; tar xf $DEVCACHE > /dev/null 2>&1)
- not_first_boot=1
- fi
- fi
- if [ ! -e "/lib/modules/$(uname -r)"/modules.dep ] ; then
- mkdir -p /lib/modules/$(uname -r)
- depmod -ae
- fi
- # make_extra_nodes
- kill_udevd > "/dev/null" 2>&1
- # trigger the sorted events
- echo -e '\000\000\000\000' > /proc/sys/kernel/hotplug
- /sbin/udevd -d
- /sbin/udevadm control --env STARTUP=1
- if [ "$not_first_boot" != "" ];then
- /sbin/udevadm trigger --action=add --subsystem-nomatch=tty --subsystem-nomatch=mem --subsystem-nomatch=vc --subsystem-nomatch=vtconsole --subsystem-nomatch=misc --subsystem-nomatch=dcon --subsystem-nomatch=pci_bus --subsystem-nomatch=graphics --subsystem-nomatch=backlight --subsystem-nomatch=video4linux --subsystem-nomatch=platform
- (/sbin/udevadm settle --timeout=8; /sbin/udevadm control --env STARTUP=)&
- else
- /sbin/udevadm trigger
- /sbin/udevadm settle
- fi
- exit 0
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