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# Copyright 1999-2008 Gentoo Foundation
# Distributed under the terms of the GNU General Public License v2
find_mdev()
{
if [ -x /sbin/mdev ] ; then
echo "/sbin/mdev"
else
echo "/bin/busybox mdev"
fi
}
populate_mdev()
{
# populate /dev with devices already found by the kernel
if get_bootparam "nocoldplug" ; then
RC_COLDPLUG="no"
ewarn "Skipping mdev coldplug as requested in kernel cmdline"
fi
ebegin "Populating /dev with existing devices with mdev -s"
$(find_mdev) -s
eend $?
return 0
}
seed_dev()
{
# Seed /dev with some things that we know we need
# creating /dev/console and /dev/tty1 to be able to write
# to $CONSOLE with/without bootsplash before mdev creates it
[ -c /dev/console ] || mknod /dev/console c 5 1
[ -c /dev/tty1 ] || mknod /dev/tty1 c 4 1
# udevd will dup its stdin/stdout/stderr to /dev/null
# and we do not want a file which gets buffered in ram
[ -c /dev/null ] || mknod /dev/null c 1 3
# copy over any persistant things
if [ -d /lib/mdev/devices ] ; then
cp -RPp /lib/mdev/devices/* /dev 2>/dev/null
fi
# Not provided by sysfs but needed
ln -snf /proc/self/fd /dev/fd
ln -snf fd/0 /dev/stdin
ln -snf fd/1 /dev/stdout
ln -snf fd/2 /dev/stderr
[ -e /proc/kcore ] && ln -snf /proc/kcore /dev/core
# Create problematic directories
mkdir -p /dev/pts /dev/shm
}
mount_it_b1()
{
if [ "${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 mdev /dev
fi
}
mount_it_b2()
{
if fstabinfo --quiet /dev ; then
mount -n /dev
else
# Some devices require exec, Bug #92921
mount -n -t tmpfs -o "exec,nosuid,mode=0755,size=10M" mdev /dev
fi
}
mount_it()
{
type fstabinfo && mount_it_b2 || mount_it_b1
}
main()
{
# Setup temporary storage for /dev
ebegin "Mounting /dev for mdev"
mount_it
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
seed_dev
# Setup hotplugging (if possible)
if [ -e /proc/sys/kernel/hotplug ] ; then
ebegin "Setting up proper hotplug agent"
eindent
einfo "Setting /sbin/mdev as hotplug agent ..."
echo $(find_mdev) > /proc/sys/kernel/hotplug
eoutdent
eend 0
fi
populate_mdev
}
main
# vim:ts=4
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