Talk:Swap on microSD
SDCard Partition Methods Thread
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Talk on Dual SD Swap Method
See from post 67 - sixwheeledbeast
Swap Switching Scripts
Latest Version - sixwheeledbeast
Now uses "EOF gainroot" script, although this causes multiple banner messages in the ejectsd script, not sure how to fix. The first switching script works perfectly and fixes the multiple swapping due to a reorder.
swapswitch.sh
#!/bin/sh #Made by sixwheeledbeast, Estel, Malkavian, peterleinchen and vi_ # Setup swap names for script ## Swap 0 - Backup internal swap location swap0=/dev/mmcblk0p3 echo $swap0 ## Swap 1 - First Main Swap Location swap1=/dev/mmcblk1p2 echo $swap1 ## Swap 2 - Second Main Swap Location swap2=/dev/mmcblk1p3 echo $swap2 # Go root if not if [ `id -u` != 0 ] ; then exec | sudo gainroot <<EOF exec sh $0 $* EOF exit $? fi # Setup notification banner banner(){ o=org f=freedesktop n=Notifications run-standalone.sh dbus-send --type=method_call \ --dest=$o.$f.$n /$o/$f/$n $o.$f.$n.SystemNoteInfoprint string:"$1" } # Get and Print Current Swap Pre swap=`cat /proc/swaps | awk '/dev/ {print $1}'` echo $swap banner "$swap" sleep 5 #Logic if [ "$swap" = "$swap1" ] ; then nice -20 swapon $swap2 nice -20 swapoff $swap1 elif [ "$swap" = "$swap2" ] ; then nice -20 swapon $swap1 nice -20 swapoff $swap2 elif [ "$swap" = "$swap0" ] ; then nice -20 swapon $swap1 nice -20 swapoff $swap0 sleep 5 # Get and Print Current Swap Post swappost=`cat /proc/swaps | awk '/dev/ {print $1}'` banner "$swappost" && exit 1 else banner "Swap Switch Failed" && exit 1 fi #End of Logic
swapswitchejectsd.sh
#!/bin/sh ##Made by sixwheeledbeast, Estel, Malkavian, peterleinchen and vi_ # Setup swap names for script ## Swap 0 - Backup internal swap location swap0=/dev/mmcblk0p3 ## Swap 1 - First Main Swap Location swap1=/dev/mmcblk1p2 ## Swap 2 - Second Main Swap Location swap2=/dev/mmcblk1p3 # Setup notification banner banner(){ o=org f=freedesktop n=Notifications run-standalone.sh dbus-send --type=method_call \ --dest=$o.$f.$n /$o/$f/$n $o.$f.$n.SystemNoteInfoprint string:"$1" } # Get and Print Current Swap Pre preswap=`cat /proc/swaps | awk '/dev/ {print $1}'` banner "$preswap" sleep 5 #Logic if [ "$preswap" = "$swap0" ]; then banner "Swap on Internal already" && exit 1 elif [ "$preswap" = "$swap1" ]; then # Go root if not if [ `id -u` != 0 ] ; then exec | sudo gainroot <<EOF exec sh $0 $* EOF exit $? fi nice -20 swapon $swap0 nice -20 swapoff $swap1 sleep 3 swappostswitchone=`cat /proc/swaps | awk '/dev/ {print $1}'` banner "$swappostswitchone" sleep 2 banner "Safe to remove back cover" && exit elif [ "$preswap" = "$swap2" ]; then # Go root if not if [ `id -u` != 0 ] ; then exec | sudo gainroot <<EOF exec sh $0 $* EOF exit $? fi nice -20 swapon $swap0 nice -20 swapoff $swap2 swappostswitchtwo=`cat /proc/swaps | awk '/dev/ {print $1}'` banner "$swappostswitchtwo" sleep 2 banner "Safe to remove back cover" && exit else banner "Swap Switch Failed" sleep 2 banner "DO NOT REMOVE BACK COVER - Please check swaps manually via terminal" && exit 2 fi
Version 1 - sixwheeledbeast
swapswitch.sh
#!/bin/sh # Made by sixwheeledbeast, Malkavian, Estel and vi_ # Setup swap names for script ## Swap 0 - Backup internal swap location swap0=/dev/mmcblk0p3 echo $swap0 ## Swap 1 - First Main Swap Location swap1=/dev/mmcblk1p2 echo $swap1 ## Swap 2 - Second Main Swap Location swap2=/dev/mmcblk1p3 echo $swap2 # Get Current Swap swap=`cat /proc/swaps | awk '/dev/ {print $1}'` echo $swap # Go root s=sudo echo $sudo # Setup notification banner banner(){ o=org f=freedesktop n=Notifications run-standalone.sh dbus-send --type=method_call \ --dest=$o.$f.$n /$o/$f/$n $o.$f.$n.SystemNoteInfoprint string:"$1" } #Print Current Swap Pre banner "$swap" sleep 5 #Logic if [ "$swap" = "$swap1" ] ; then nice -20 $s swapon $swap2 nice -20 $s swapoff $swap1 elif [ "$swap" = "$swap2" ] ; then nice -20 $s swapon $swap1 nice -20 $s swapoff $swap2 elif [ "$swap" = "$swap0" ] ; then nice -20 $s swapon $swap1 nice -20 $s swapoff $swap0 else banner "Swap Switch Failed" fi sleep 5 # Get Current Swap swappost=`cat /proc/swaps | awk '/dev/ {print $1}'` echo $swappost #Print Current Swap Post banner "$swappost"
swapswitchejectsd.sh
#!/bin/sh # Made by sixwheeledbeast, Malkavian, Estel and vi_ # Setup swap names for script ## Swap 0 - Backup internal swap location swap0=/dev/mmcblk0p3 ## Swap 1 - First Main Swap Location swap1=/dev/mmcblk1p2 ## Swap 2 - Second Main Swap Location swap2=/dev/mmcblk1p3 # Get Current Swap swap=`cat /proc/swaps | awk '/dev/ {print $1}'` echo $swap # Go root s=sudo echo $sudo # Setup notification banner banner(){ o=org f=freedesktop n=Notifications run-standalone.sh dbus-send --type=method_call \ --dest=$o.$f.$n /$o/$f/$n $o.$f.$n.SystemNoteInfoprint string:"$1" } #Print Current Swap Pre banner "$swap" sleep 5 #Logic if [ "$swap" = "$swap0" ] then banner "Swap on Internal already!" elif [ "$swap" = "$swap1" ] then nice -20 $s swapon $swap0 nice -20 $s swapoff $swap1 elif [ "$swap" = "$swap2" ] then nice -20 $s swapon $swap0 nice -20 $s swapoff $swap2 else banner "Swap Switch Failed" fi sleep 5 # Get Current Swap swappost=`cat /proc/swaps | awk '/dev/ {print $1}'` echo $swappost if [ "$swappost" = "$swap0" ] then banner "Safe to remove back cover" else sleep 2 banner "ERROR! DO NOT REMOVE BACK COVER" sleep 3 #Print Current Swap Post banner "$swappost" fi
Version 1 - Malkavian
swapswitch.sh
#!/bin/sh # Made by Sixwheeledbeast and Malkavian # Setup swap names for script ## Swap 0 - Backup internal swap location swap0=/dev/mmcblk0p3 ## Swap 1 - First Main Swap Location swap1=/dev/mmcblk1p2 ## Swap 2 - Second Main Swap Location swap2=/dev/mmcblk1p3 # Setup notification banner banner(){ o=org f=freedesktop n=Notifications run-standalone.sh dbus-send --type=method_call \ --dest=$o.$f.$n /$o/$f/$n $o.$f.$n.SystemNoteInfoprint string:"$1" } # Get Current Swap old=`cat /proc/swaps | awk '/dev/ {print $1}'` #Logic if [ "$old" = "$swap0" ] then if [ $RANDOM -lt 16384 ] # RANDOM gives a value from 0 to 32787. We try 50% of probabilities then new="$swap1" else new="$swap2" fi elif [ "$old" = "$swap1" ] then new="$swap2" elif [ "$old" = "$swap2" ] then new="$swap1" else banner "None of the configured swaps found active, revise the configuration. Current active swap (if any): $old" exit 1 fi swapon $new || \ ( banner "Ops, something failed, cannot swapon $new (so swapoff of $old neither done)" && exit 1 ) nice -20 swapoff $old || \ ( banner "Ops, something failed, swapon of $new done but cannot swapoff $old" && exit 1 ) banner "OK: Swap switched from $old to $new"
swapscriptejectsd.sh
#!/bin/sh # Made by Sixwheeledbeast and Malkavian # Setup swap names for script ## Swap 0 - Backup internal swap location swap0=/dev/mmcblk0p3 ## Swap 1 - First Main Swap Location swap1=/dev/mmcblk1p2 ## Swap 2 - Second Main Swap Location swap2=/dev/mmcblk1p3 # Setup notification banner banner(){ o=org f=freedesktop n=Notifications run-standalone.sh dbus-send --type=method_call \ --dest=$o.$f.$n /$o/$f/$n $o.$f.$n.SystemNoteInfoprint string:"$1" } # Get Current Swap old=`cat /proc/swaps | awk '/dev/ {print $1}'` #Logic if [ "$old" = "$swap0" ] then banner "Swap on Internal already!" exit 0 else swapon $swap0 || \ ( banner "Ops, something failed, cannot swapon $swap0 (so swapoff of $old neither done)" && exit 1 ) nice -20 swapoff $old || \ ( banner "Ops, something failed, swapon of $swap0 done but cannot swapoff $old" && exit 1 ) fi
Information on Starting Swap on SD at bootup
Upstart format - new file in event.d
etc/event.d/relocateswap
description "Micro SD Swap Location on Startup" author "sixwheeledbeast" console output start on started rcS-late script swapon /dev/mmcblk1p2 sleep 10 swapoff /dev/mmcblk0p3 end script
Original script from main page
This script can be run via Terminal or using an application like Queen BeeCon Widget.
It is for refreshing swap if main swap space is on Micro SD Partition 2.
run-standalone.sh dbus-send --type=method_call --dest=org.freedesktop.Notifications /org/freedesktop/Notifications org.freedesktop.Notifications.SystemNoteDialog string:"Start Swap Refresh" uint32:0 string:"OK"; sudo swapon /dev/mmcblk0p3 ; sudo swapoff /dev/mmcblk1p2 ; run-standalone.sh dbus-send --type=method_call --dest=org.freedesktop.Notifications /org/freedesktop/Notifications org.freedesktop.Notifications.SystemNoteInfoprint string:"Swapping Back to Main Swap on SD..." ; sudo swapon /dev/mmcblk1p2 ; sudo swapoff /dev/mmcblk0p3 ; run-standalone.sh dbus-send --type=method_call --dest=org.freedesktop.Notifications /org/freedesktop/Notifications org.freedesktop.Notifications.SystemNoteDialog string:"Swap Refresh Complete" uint32:0 string:"OK"
This script can be modified to suit different swap locations as required.
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