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# Copyright 1999-2005 Gentoo Foundation
# Distributed under the terms of the GNU General Public License v2
udev_version() {
# Version number copied in by ebuild
local version=@@UDEV_VERSION@@
version=${version##0}
echo "${version}"
}
populate_udev() {
# populate /dev with devices already found by the kernel
# tell modprobe.sh to be verbose to $CONSOLE
echo CONSOLE=${CONSOLE} > /dev/.udev_populate
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 $?
rm -f /dev/.udev_populate
return 0
}
seed_dev() {
# Seed /dev with some things that we know we need
ebegin "Seeding /dev with needed nodes"
# if /dev/console is missing on root-partition,
# kernel could not open it and we need to do that for
# udevd (Bug #151414)
[ ! -c /dev/console ] && mknod /dev/console c 5 1
# creating /dev/tty1 as it is used by bootsplash
# (to allow us to write to $CONSOLE before udev has
# created it)
[ ! -c /dev/tty1 ] && mknod /dev/tty1 c 4 1
# udevd will dup its stdin/stdout/stderr to /dev/null
# and we do not want a file which gets buffered in ram
[ ! -c /dev/null ] && mknod /dev/null c 1 3
# copy over any persistant things
if [ -d /lib/udev/devices ] ; then
cp --preserve=all --recursive --update /lib/udev/devices/* /dev 2>/dev/null
fi
# Not provided by sysfs but needed
ln -snf /proc/self/fd /dev/fd
ln -snf fd/0 /dev/stdin
ln -snf fd/1 /dev/stdout
ln -snf fd/2 /dev/stderr
[ -e /proc/kcore ] && ln -snf /proc/kcore /dev/core
# Create problematic directories
mkdir -p /dev/pts /dev/shm
eend 0
}
main() {
# check if /dev/console exists outside tmpfs
[ -c /dev/console ] ; local need_redirect=$?
# 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 ${mntcmd}
else
if grep -Eq "[[:space:]]+tmpfs$" /proc/filesystems ; then
mntcmd="tmpfs"
else
mntcmd="ramfs"
fi
# many video drivers require exec access in /dev #92921
try mount -n -t "${mntcmd}" -o exec,nosuid,mode=0755 udev /dev
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"
if [ ${need_redirect} -eq 1 ]; then
# we need to open fds 0 1 2 to solve Bug #151414
/sbin/udevd --daemon </dev/console >/dev/console 2>/dev/console
else
/sbin/udevd --daemon
fi
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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