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#!/bin/sh -e
PREFIX=@PREFIX@
: ${LIBDIR=$PREFIX/lib}
. "$LIBDIR/libalpine.sh"
prog="${0##*/}"
usage () {
cat <<EOF
usage: setup-devd [ -h ] [ -C ] [ mdev | mdevd | udev ]
Set up the device manager.
Options:
-h Show this help
-C Perform a coldplug after starting the device manager.
The optional argument tells setup-devd what device manager to use.
mdev (from busybox) is the default.
mdevd is standalone, compatible with mdev, more efficient.
udev (from eudev) is the complex, full-featured one.
Without an argument, the choice is prompted interactively.
EOF
exit $1
}
disable_mdev () {
if rc-service -e mdev ; then
rc-service -s mdev-init stop
rc-service -s mdev stop
rc-update delete mdev-init sysinit || :
rc-update delete mdev sysinit || :
fi
}
enable_mdev () {
# mdev openrc script is provided by busybox-initscripts which is assumed
# to be there
rc-update add mdev sysinit
rc-update add mdev-init sysinit
rc-service mdev start
if "$1" ; then
rc-service mdev-init start
fi
}
disable_mdevd () {
if rc-service -e mdevd ; then
rc-service -s mdevd stop
rc-update delete mdevd-init sysinit 2>/dev/null || :
rc-update delete mdevd sysinit 2>/dev/null || :
fi
}
enable_mdevd () {
apk add --quiet mdevd mdevd-openrc
rc-update add mdevd sysinit
rc-update add mdevd-init sysinit
rc-service mdevd start
if "$1" ; then
rc-service mdevd-init start
fi
}
disable_udev () {
if rc-service -e udev ; then
rc-service -s udev stop
rc-update delete udev-postmount default 2>/dev/null || :
rc-update delete udev-settle sysinit 2>/dev/null || :
rc-update delete udev-trigger sysinit 2>/dev/null || :
rc-update delete udev sysinit 2>/dev/null || :
fi
}
enable_udev () {
apk add --quiet eudev udev-init-scripts udev-init-scripts-openrc
rc-update add udev sysinit
rc-update add udev-trigger sysinit
rc-update add udev-settle sysinit
rc-update add udev-postmount default
rc-service udev start
if "$1" ; then
rc-service udev-trigger start
rc-service udev-settle start
rc-service udev-postmount start
fi
}
coldplug=false
while getopts "hC" opt ; do
case $opt in
h) usage 0;;
C) coldplug=true ;;
'?') usage 1 >&2;;
esac
done
shift $((OPTIND - 1))
devd="$1"
if test -n "$devd" ; then
interactive=false
else
interactive=true
fi
until isin "$devd" mdev mdevd udev ; do
ask "What program should manage /dev? [mdev|mdevd|udev]" mdev
devd="$resp"
done
if "$interactive" ; then
if ask_yesno "Scan the hardware to populate /dev? [y|n] (Say yes if you're running this script for the first time.)" n ; then
coldplug=true
else
coldplug=false
fi
fi
case "$devd" in
mdev) disable_mdevd ; disable_udev ; enable_mdev $coldplug ;;
mdevd) disable_mdev ; disable_udev ; enable_mdevd $coldplug ;;
udev) disable_mdev ; disable_mdevd ; enable_udev $coldplug ;;
esac
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