diff options
| -rwxr-xr-x | package/udev/init-udev | 76 |
1 files changed, 76 insertions, 0 deletions
diff --git a/package/udev/init-udev b/package/udev/init-udev new file mode 100755 index 000000000..4f424950f --- /dev/null +++ b/package/udev/init-udev @@ -0,0 +1,76 @@ +#!/bin/sh +# +# udev This is a minimal non-LSB version of a UDEV startup script. It +# was derived by stripping down the udev-058 LSB version for use +# with buildroot on embedded hardware using Linux 2.6.12+ kernels. +# +# You may need to customize this for your system's resource limits +# (including startup time!) and administration. For example, if +# your early userspace has a custom initramfs or initrd you might +# need /dev much earlier; or without hotpluggable busses (like USB, +# PCMCIA, MMC/SD, and so on) your /dev might be static after boot. +# +# This script assumes your system boots right into the eventual root +# filesystem, and that init runs this udev script before any programs +# needing more device nodes than the bare-bones set -- /dev/console, +# /dev/zero, /dev/null -- that's needed to boot and run this script. +# + +# old kernels don't use udev +case $(uname -r) in +2.6*|2.7*) ;; +*) exit 0;; +esac + +# Check for missing binaries +UDEV_BIN=/sbin/udev +test -x $UDEV_BIN || exit 5 +UDEVSTART_BIN=/sbin/udevstart +test -x $UDEVSTART_BIN || exit 5 + +# Check for config file and read it +UDEV_CONFIG=/etc/udev/udev.conf +test -r $UDEV_CONFIG || exit 6 +. $UDEV_CONFIG + +# Directory where sysfs is mounted +SYSFS_DIR=/sys + +case "$1" in + start) + # mount sysfs if it's not yet mounted + if [ ! -d $SYSFS_DIR ]; then + echo "${0}: SYSFS_DIR \"$SYSFS_DIR\" not found" + exit 1 + fi + grep -q "^sysfs $SYSFS_DIR" /proc/mounts || + mount -t sysfs /sys /sys || + exit 1 + + # mount $udev_root as ramfs if it's not yet mounted + # we know 2.6 kernels always support ramfs + if [ ! -d $udev_root ]; then + echo "${0}: udev_root \"$udev_root\" not found" + exit 1 + fi + grep -q "^udev $udev_root" /proc/mounts || + mount -t ramfs udev $udev_root || + exit 1 + + # heck, go whole-hog: use only new style hotplug + # echo $UDEV_BIN > /proc/sys/kernel/hotplug + + # populate /dev (normally) + echo -n "Populating $udev_root using udev... " + $UDEVSTART_BIN || (echo "FAIL" && exit 1) + mkdir $udev_root/pts $udev_root/shm + echo "done" + ;; + stop) + # do nothing + ;; + *) + echo "Usage: $0 {start|stop}" + exit 1 + ;; +esac |