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disable suspend if booting from removable storage

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This commit is contained in:
Stefan Saraev
2014-03-22 16:11:28 +02:00
parent 566479528c
commit 803bc002b9
2 changed files with 50 additions and 0 deletions
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23
packages/sysutils/busybox/scripts/init
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@@ -588,6 +588,25 @@
BOOT_STEP=final
# no suspend when booted from nonpersistent storage
STORAGE=$(cat /proc/mounts | grep " /sysroot/storage " | awk '{print $1}' | awk -F '/' '{print $3}')
if [ -n "$STORAGE" ] ; then
removable="/sys/class/block/*/$STORAGE/../removable"
if [ -e $removable ] ; then
if [ "$(cat $removable 2>/dev/null)" = "1" ] ; then
SUSPEND_DISABLED=yes
fi
fi
fi
FLASH=$(cat /proc/mounts | grep " /sysroot/flash " | awk '{print $1}' | awk -F '/' '{print $3}')
if [ -n "$FLASH" ] ; then
removable="/sys/class/block/*/$FLASH/../removable"
if [ -e $removable ] ; then
if [ "$(cat $removable 2>/dev/null)" = "1" ] ; then
SUSPEND_DISABLED=yes
fi
fi
fi
# move some special filesystems
/bin/busybox mount --move /dev /sysroot/dev
/bin/busybox mount --move /proc /sysroot/proc
@@ -601,6 +620,10 @@
if [ "$STORAGE_NETBOOT" = "yes" ] ; then
echo "" > /sysroot/dev/.storage_netboot
fi
# no suspend when booted from nonpersistent storage
if [ "$SUSPEND_DISABLED" = "yes" ] ; then
echo "" > /sysroot/dev/.suspend_disabled
fi
# switch to new sysroot and start real init
exec /bin/busybox switch_root /sysroot /usr/lib/systemd/systemd $INIT_ARGS