OpenWRT/swapfile
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Update 'etc-init.d-swapfile'

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fernao 2023-07-03 18:15:27 -03:00
parent 3addb104ce
commit 60acce89ee
1 changed files with 23 additions and 8 deletions
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31
etc-init.d-swapfile
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@ -1,14 +1,20 @@
#!/bin/sh /etc/rc.common #!/bin/sh /etc/rc.common
# (C) 2016 - 2023 Fernao Vellozo # (C) 2016 - 2023 Fernao Vellozo | fernao@disroot.org
# This is free software under the terms of GPLv3 # This is free software under the terms of GPLv3
# v 1.0.5
# Service priority in the system
START=90 START=90
EXTRA_COMMANDS="status create" EXTRA_COMMANDS="status create"
EXTRA_HELP=" status Check service status EXTRA_HELP=" status Check service status
create Create a swapfile" create Create a swapfile"
# if version is 19 or lower, use spaces on the help menu above
# if version 21 or higher, use tabs
#
# overlay partition is the default value
# it's better to change it and use other place to store the swapfile
# default value, it'd be better to use other place than overlay
SWPATH="/overlay/swapfile" SWPATH="/overlay/swapfile"
boot() { boot() {
@ -57,19 +63,28 @@ stop() {
create() { create() {
RAMTOTAL=`fgrep MemTotal /proc/meminfo | awk '{print $2}'` RAMTOTAL=`fgrep MemTotal /proc/meminfo | awk '{print $2}'`
SWAPTOTAL=`fgrep SwapTotal /proc/meminfo | awk '{print $2}'` SWAPTOTAL=`fgrep SwapTotal /proc/meminfo | awk '{print $2}'`
OVERLAYSIZE=`df | grep overlayfs | awk '{print $3}'` OVERLAYSIZE=`df | grep overlayfs | awk '{print $4}'`
if [ $OVERLAYSIZE < $RAMTOTAL ]; then
if [ "$OVERLAYSIZE" -lt "$RAMTOTAL" ]; then
echo "ERROR: Not enough storage for a swapfile, quitting..." echo "ERROR: Not enough storage for a swapfile, quitting..."
exit 1 exit 1
elif [ $SWAPTOTAL != 0 ]; then elif [ $SWAPTOTAL != 0 ]; then
echo "ERROR: Swap already in use, quitting..." echo "ERROR: Swap already in use, quitting..."
exit 1
elif [ -f $SWPATH ]; then
echo "ERROR: File already exists, quitting..."
exit 1
else else
dd if=/dev/zero of=$SWFILE bs=1024 count=$RAMTOTAL echo "Creating Swap File of "$RAMTOTAL
mkswap -L SWAPFILE $SWFILE echo "Please wait..."
chmod 600 $SWFILE dd if=/dev/zero of=$SWPATH bs=1024 count=$RAMTOTAL
mkswap -L SWAPFILE $SWPATH
chmod 600 $SWPATH
/etc/init.d/swapfile enable /etc/init.d/swapfile enable
logger "SwapFile created" logger "SwapFile created"
echo "SwapFile successfully created, enabled to run after the next reboot" echo "SwapFile successfully created and enabled to run after the next reboot"
/etc/init.d/swapfile start
echo; free
fi fi
} }