103 lines
2.4 KiB
Bash
103 lines
2.4 KiB
Bash
#!/bin/sh /etc/rc.common
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# (C) 2016 - 2023 Fernao Vellozo | fernao@disroot.org
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# This is free software under the terms of GPLv3
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# v 1.0.5
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# Service priority in the system
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START=90
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EXTRA_COMMANDS="status create"
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EXTRA_HELP=" status Check service status
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create Create a swapfile"
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# if version is 19 or lower, use spaces on the help menu above
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# if version 21 or higher, use tabs
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#
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# overlay partition is the default value
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# it's better to change it and use other place to store the swapfile
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SWPATH="/overlay/swapfile"
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boot() {
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if [ -f $SWPATH ]; then
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swapon $SWPATH
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logger "swapfile started on boot"
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else
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logger "ERROR: swapfile not found"
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fi
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}
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start() {
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if [ -f $SWPATH ]; then
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swapon $SWPATH
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logger "swapfile started"
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echo "SwapFile started"
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else
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logger "ERROR: swapfile not found"
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echo "ERROR: SwapFile not found at "$SWPATH
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fi
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}
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restart() {
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if [ -f $SWPATH ]; then
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swapoff $SWPATH
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swapon $SWPATH
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logger "swapfile stopped, reloading..."
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echo "SwapFile Reloaded"
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else
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logger "ERROR: swapfile not found"
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echo "ERROR: SwapFile not found at "$SWPATH
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fi
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}
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stop() {
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if [ -f $SWPATH ]; then
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swapoff $SWPATH
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logger "swapfile stopped"
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echo "SwapFile stopped "$SWPATH
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else
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logger "ERROR: swapfile not found"
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echo "ERROR: SwapFile not found at "$SWPATH
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fi
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}
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create() {
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RAMTOTAL=`fgrep MemTotal /proc/meminfo | awk '{print $2}'`
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SWAPTOTAL=`fgrep SwapTotal /proc/meminfo | awk '{print $2}'`
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OVERLAYSIZE=`df | grep overlayfs | awk '{print $4}'`
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if [ "$OVERLAYSIZE" -lt "$RAMTOTAL" ]; then
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echo "ERROR: Not enough storage for a swapfile, quitting..."
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exit 1
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elif [ $SWAPTOTAL != 0 ]; then
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echo "ERROR: Swap already in use, quitting..."
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exit 1
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elif [ -f $SWPATH ]; then
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echo "ERROR: File already exists, quitting..."
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exit 1
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else
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echo "Creating Swap File of "$RAMTOTAL
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echo "Please wait..."
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dd if=/dev/zero of=$SWPATH bs=1024 count=$RAMTOTAL
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mkswap -L SWAPFILE $SWPATH
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chmod 600 $SWPATH
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/etc/init.d/swapfile enable
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logger "SwapFile created"
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echo "SwapFile successfully created and enabled to run after the next reboot"
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/etc/init.d/swapfile start
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echo; free
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fi
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}
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status() {
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SWAPTOTAL=`fgrep SwapTotal /proc/meminfo | awk '{print $2}'`
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if [ $SWAPTOTAL == 0 ]; then
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echo "No swap memory available"
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else
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echo $SWAPTOTAL "KB of swap are available"
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if [ -f $SWPATH ]; then
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echo "Swapfile is located at "$SWPATH
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else
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echo "Swap memory has been loaded, but not from here"
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fi
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fi
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} |