我的ubuntu9.04关机不正常，有光标闪

[tusiwhobei]

acer4520的本子，装的64位的ubuntu9.04，关机不正常，进度条走完后左上角有光标闪，按空格或者enter键三下会出现 “［八九位数字］power down“然后关掉电源，网上好多方法试了都不行，现在把/etc/init.d/halt 文件的内容贴出来，希望高手能帮忙看下有没问题，谢谢了哈。。。
#! /bin/sh
### BEGIN INIT INFO
# Provides: halt
# Required-Start:
# Required-Stop:
# Default-Start:
# Default-Stop: 0
# Short-Description: Execute the halt command.
# Description:
### END INIT INFO

NETDOWN=yes

PATH=/sbin:/usr/sbin:/bin:/usr/bin
[ -f /etc/default/halt ] && . /etc/default/halt

. /lib/lsb/init-functions

do_stop () {
if [ "$INIT_HALT" = "" ]
then
case "$HALT" in
[Pp]*)
INIT_HALT=POWEROFF
;;
[Hh]*)
INIT_HALT=HALT
;;
*)
INIT_HALT=POWEROFF
;;
esac
fi

# See if we need to cut the power.
if [ "$INIT_HALT" = "POWEROFF" ] && [ -x /etc/init.d/ups-monitor ]
then
/etc/init.d/ups-monitor poweroff
fi

# Don't shut down drives if we're using RAID.
hddown="-h"
if grep -qs '^md.*active' /proc/mdstat
then
hddown=""
fi

# If INIT_HALT=HALT don't poweroff.
poweroff="-p"
if [ "$INIT_HALT" = "HALT" ]
then
poweroff=""
fi

# Make it possible to not shut down network interfaces,
# needed to use wake-on-lan
netdown="-i"
if [ "$NETDOWN" = "no" ]; then
netdown=""
fi

log_action_msg "Will now halt"
halt -d -f $netdown $poweroff $hddown
}

case "$1" in
start)
# No-op
;;
restart|reload|force-reload)
echo "Error: argument '$1' not supported" >&2
exit 3
;;
stop)
do_stop
;;
*)
echo "Usage: $0 start|stop" >&2
exit 3
;;
esac

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