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# Copyright 1999-2005 Gentoo Foundation
# Distributed under the terms of the GNU General Public License v2
udev_version() {
local version=0
if [[ -x /sbin/udev ]] ; then
version=$(/sbin/udev -V)
# We need it without a leading '0', else bash do the wrong thing
version=${version##0}
# Older udev's will print nothing
[[ -z ${version} ]] && version=0
fi
echo "${version}"
}
populate_udev() {
# populate /dev with devices already found by the kernel
if [ $(get_KV) -gt "$(KV_to_int '2.6.14')" ] ; then
ebegin "Populating /dev with existing devices through uevents"
local opts=
[[ ${RC_COLDPLUG} != "yes" && $(udev_version) -ge "96" ]] && \
opts="--attr-match=dev"
/sbin/udevtrigger ${opts}
eend $?
else
ebegin "Populating /dev with existing devices with udevstart"
/sbin/udevstart
eend $?
fi
# loop until everything is finished
# there's gotta be a better way...
ebegin "Letting udev process events"
/sbin/udevsettle --timeout=60
eend $?
return 0
}
seed_dev() {
# Seed /dev with some things that we know we need
ebegin "Seeding /dev with needed nodes"
# copy over any persistant things
if [[ -d /lib/udev/devices ]] ; then
cp --preserve=all --recursive --update /lib/udev/devices/* /dev
fi
# Not provided by sysfs but needed
ln -snf /proc/self/fd /dev/fd
ln -snf fd/0 /dev/stdin
ln -snf fd/1 /dev/stdout
ln -snf fd/2 /dev/stderr
[[ -e /proc/kcore ]] && ln -snf /proc/kcore /dev/core
# Create problematic directories
mkdir -p /dev/{pts,shm}
eend 0
}
main() {
# Setup temporary storage for /dev
ebegin "Mounting /dev for udev"
if [[ ${RC_USE_FSTAB} == "yes" ]] ; then
mntcmd=$(get_mount_fstab /dev)
else
unset mntcmd
fi
if [[ -n ${mntcmd} ]] ; then
try mount -n ${mntcmd}
else
# This is bash only, but saves on using grep
if [[ $(</proc/filesystems)$'\n' =~ [[:space:]]tmpfs$'\n' ]] ; then
mntcmd="tmpfs"
else
mntcmd="ramfs"
fi
# many video drivers require exec access in /dev #92921
try mount -n -t ${mntcmd} udev /dev -o exec,nosuid,mode=0755
fi
eend $?
# Create a file so that our rc system knows it's still in sysinit.
# Existance means init scripts will not directly run.
# rc will remove the file when done with sysinit.
touch /dev/.rcsysinit
# Selinux lovin; /selinux should be mounted by selinux-patched init
if [[ -x /sbin/restorecon && -c /selinux/null ]] ; then
restorecon /dev &> /selinux/null
fi
# Actually get udev rolling
if [[ ${RC_DEVICE_TARBALL} == "yes" && \
-s /lib/udev/state/devices.tar.bz2 ]] ; then
ebegin "Populating /dev with saved device nodes"
try tar -jxpf /lib/udev/state/devices.tar.bz2 -C /dev
eend $?
fi
seed_dev
# Setup hotplugging (if possible)
if [[ -e /proc/sys/kernel/hotplug ]] ; then
ebegin "Setting up proper hotplug agent"
eindent
if [[ $(get_KV) -gt $(KV_to_int '2.6.14') ]] ; then
einfo "Using netlink for hotplug events..."
echo "" > /proc/sys/kernel/hotplug
else
einfo "Setting /sbin/udevsend as hotplug agent ..."
echo "/sbin/udevsend" > /proc/sys/kernel/hotplug
fi
eoutdent
eend 0
fi
ebegin "Starting udevd"
/sbin/udevd --daemon
eend $?
populate_udev
# Create nodes that udev can't
ebegin "Finalizing udev configuration"
[[ -x /sbin/dmsetup ]] && /sbin/dmsetup mknodes &>/dev/null
[[ -x /sbin/lvm ]] && \
/sbin/lvm vgscan -P --mknodes --ignorelockingfailure &>/dev/null
# Running evms_activate on a LiveCD causes lots of headaches
[[ -z ${CDBOOT} ]] && [[ -x /sbin/evms_activate ]] && \
/sbin/evms_activate -q &>/dev/null
eend 0
}
main
# vim:ts=4
|
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