04afaa3c03
Previously, the default on linux systems was to not set the hardware clock to match the system clock during shutdown. This changes that default to be consistent with *bsd and swclock.
147 lines
2.6 KiB
Plaintext
147 lines
2.6 KiB
Plaintext
#!@PREFIX@/sbin/runscript
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# Copyright (c) 2007-2008 Roy Marples <roy@marples.name>
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# Released under the 2-clause BSD license.
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extra_commands="save show"
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description="Sets the local clock to UTC or Local Time."
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description_save="Saves the current time in the BIOS."
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description_show="Displays the current time in the BIOS."
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: ${clock_adjfile:=${CLOCK_ADJFILE}}
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: ${clock_args:=${CLOCK_OPTS}}
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: ${clock_systohc:=${CLOCK_SYSTOHC}}
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: ${clock:=${CLOCK:-UTC}}
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if [ "$clock" = "UTC" ]; then
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utc="UTC"
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utc_cmd="--utc"
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else
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utc="Local Time"
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utc_cmd="--localtime"
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fi
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depend()
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{
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provide clock
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if yesno $clock_adjfile; then
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use root
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else
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before *
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fi
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keyword -openvz -prefix -uml -vserver -xenu -lxc
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}
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setupopts()
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{
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case "$(uname -m)" in
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s390*)
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utc="s390"
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;;
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*)
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if [ -e /proc/devices ] && \
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grep -q " cobd$" /proc/devices
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then
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utc="coLinux"
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fi
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;;
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esac
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case "$utc" in
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UTC|Local" "Time);;
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*) unset utc_cmd;;
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esac
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}
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# hwclock doesn't always return non zero on error
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_hwclock()
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{
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local err="$(hwclock "$@" 2>&1 >/dev/null)"
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[ -z "$err" ] && return 0
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echo "${err}" >&2
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return 1
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}
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start()
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{
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local retval=0 errstr=""
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setupopts
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if [ -z "$utc_cmd" ]; then
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ewarn "Not setting clock for $utc system"
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return 0
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fi
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ebegin "Setting system clock using the hardware clock [$utc]"
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if [ -e /proc/modules ]; then
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local rtc=
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for rtc in /dev/rtc /dev/rtc[0-9]*; do
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[ -e "$rtc" ] && break
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done
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if [ ! -e "${rtc}" ]; then
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modprobe -q rtc-cmos || modprobe -q rtc || modprobe -q genrtc
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fi
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fi
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if [ -e /etc/adjtime ] && yesno $clock_adjfile; then
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_hwclock --adjust $utc_cmd
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: $(( retval += $? ))
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fi
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# If setting UTC, don't bother to run hwclock when first booting
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# as that's the default
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if [ "$PREVLEVEL" != N -o \
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"$utc_cmd" != --utc -o \
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-n "$clock_args" ];
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then
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if yesno ${clock_hctosys:-YES}; then
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_hwclock --hctosys $utc_cmd $clock_args
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else
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_hwclock --systz $utc_cmd $clock_args
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fi
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: $(( retval += $? ))
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fi
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eend $retval "Failed to set the system clock"
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return 0
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}
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stop()
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{
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# Don't tweak the hardware clock on LiveCD halt.
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[ -n "$CDBOOT" ] && return 0
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yesno ${clock_systohc:-YES} || return 0
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local retval=0 errstr=""
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setupopts
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[ -z "$utc_cmd" ] && return 0
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ebegin "Setting hardware clock using the system clock" "[$utc]"
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if ! yesno $clock_adjfile; then
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# Some implementations don't handle adjustments
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if LC_ALL=C hwclock --help 2>&1 | grep -q "\-\-noadjfile"; then
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utc_cmd="$utc_cmd --noadjfile"
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fi
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fi
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_hwclock --systohc $utc_cmd $clock_args
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retval=$?
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eend $retval "Failed to sync clocks"
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}
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save()
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{
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clock_systohc=yes
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stop
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}
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show()
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{
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setupopts
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hwclock --show "$utc_cmd" $clock_args
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}
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