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Merge pull request #17100 from abbradar/resume-delay
nixos stage-1: wait for resume devices to appear
This commit is contained in:
Wout Mertens
GitHub
commit
db8401f603
@ -185,39 +185,6 @@ if test -n "$debug1devices"; then fail; fi
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@postDeviceCommands@
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# Try to resume - all modules are loaded now, and devices exist
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if test -e /sys/power/tuxonice/resume; then
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if test -n "$(cat /sys/power/tuxonice/resume)"; then
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echo 0 > /sys/power/tuxonice/user_interface/enabled
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echo 1 > /sys/power/tuxonice/do_resume || echo "failed to resume..."
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fi
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fi
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if test -e /sys/power/resume -a -e /sys/power/disk; then
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if test -n "@resumeDevice@"; then
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resumeDev="@resumeDevice@"
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resumeInfo="$(udevadm info -q property "$resumeDev" )"
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else
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for sd in @resumeDevices@; do
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# Try to detect resume device. According to Ubuntu bug:
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# https://bugs.launchpad.net/ubuntu/+source/pm-utils/+bug/923326/comments/1
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# when there are multiple swap devices, we can't know where the hibernate
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# image will reside. We can check all of them for swsuspend blkid.
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resumeInfo="$(test -e "$sd" && udevadm info -q property "$sd")"
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if [ "$(echo "$resumeInfo" | sed -n 's/^ID_FS_TYPE=//p')" = "swsuspend" ]; then
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resumeDev="$sd"
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break
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fi
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done
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fi
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if test -e "$resumeDev"; then
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resumeMajor="$(echo "$resumeInfo" | sed -n 's/^MAJOR=//p')"
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resumeMinor="$(echo "$resumeInfo" | sed -n 's/^MINOR=//p')"
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echo "$resumeMajor:$resumeMinor" > /sys/power/resume 2> /dev/null || echo "failed to resume..."
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fi
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fi
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# Return true if the machine is on AC power, or if we can't determine
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# whether it's on AC power.
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onACPower() {
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@ -348,6 +315,68 @@ mountFS() {
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}
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# Function for waiting a device to appear.
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waitDevice() {
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local device="$1"
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# USB storage devices tend to appear with some delay. It would be
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# great if we had a way to synchronously wait for them, but
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# alas... So just wait for a few seconds for the device to
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# appear.
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if test ! -e $device; then
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echo -n "waiting for device $device to appear..."
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try=20
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while [ $try -gt 0 ]; do
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sleep 1
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# also re-try lvm activation now that new block devices might have appeared
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lvm vgchange -ay
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# and tell udev to create nodes for the new LVs
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udevadm trigger --action=add
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if test -e $device; then break; fi
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echo -n "."
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try=$((try - 1))
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done
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echo
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[ $try -ne 0 ]
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fi
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}
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# Try to resume - all modules are loaded now.
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if test -e /sys/power/tuxonice/resume; then
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if test -n "$(cat /sys/power/tuxonice/resume)"; then
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echo 0 > /sys/power/tuxonice/user_interface/enabled
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echo 1 > /sys/power/tuxonice/do_resume || echo "failed to resume..."
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fi
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fi
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if test -e /sys/power/resume -a -e /sys/power/disk; then
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if test -n "@resumeDevice@" && waitDevice "@resumeDevice@"; then
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resumeDev="@resumeDevice@"
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resumeInfo="$(udevadm info -q property "$resumeDev" )"
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else
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for sd in @resumeDevices@; do
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# Try to detect resume device. According to Ubuntu bug:
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# https://bugs.launchpad.net/ubuntu/+source/pm-utils/+bug/923326/comments/1
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# when there are multiple swap devices, we can't know where the hibernate
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# image will reside. We can check all of them for swsuspend blkid.
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if waitDevice "$sd"; then
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resumeInfo="$(udevadm info -q property "$sd")"
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if [ "$(echo "$resumeInfo" | sed -n 's/^ID_FS_TYPE=//p')" = "swsuspend" ]; then
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resumeDev="$sd"
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break
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fi
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fi
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done
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fi
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if test -n "$resumeDev"; then
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resumeMajor="$(echo "$resumeInfo" | sed -n 's/^MAJOR=//p')"
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resumeMinor="$(echo "$resumeInfo" | sed -n 's/^MINOR=//p')"
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echo "$resumeMajor:$resumeMinor" > /sys/power/resume 2> /dev/null || echo "failed to resume..."
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fi
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fi
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# Try to find and mount the root device.
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mkdir -p $targetRoot
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@ -380,29 +409,11 @@ while read -u 3 mountPoint; do
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;;
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esac
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# USB storage devices tend to appear with some delay. It would be
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# great if we had a way to synchronously wait for them, but
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# alas... So just wait for a few seconds for the device to
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# appear. If it doesn't appear, try to mount it anyway (and
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# probably fail). This is a fallback for non-device "devices"
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# that we don't properly recognise.
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if test -z "$pseudoDevice" -a ! -e $device; then
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echo -n "waiting for device $device to appear..."
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try=20
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while [ $try -gt 0 ]; do
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sleep 1
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# also re-try lvm activation now that new block devices might have appeared
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lvm vgchange -ay
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# and tell udev to create nodes for the new LVs
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udevadm trigger --action=add
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if test -e $device; then break; fi
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echo -n "."
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try=$((try - 1))
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done
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echo
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if [ $try -eq 0 ]; then
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echo "Timed out waiting for device $device, trying to mount anyway."
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fi
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if test -z "$pseudoDevice" && ! waitDevice "$device"; then
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# If it doesn't appear, try to mount it anyway (and
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# probably fail). This is a fallback for non-device "devices"
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# that we don't properly recognise.
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echo "Timed out waiting for device $device, trying to mount anyway."
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fi
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# Wait once more for the udev queue to empty, just in case it's
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