mirror of
https://github.com/rootzoll/raspiblitz.git
synced 2025-02-28 16:58:03 +01:00
97 lines
No EOL
2.6 KiB
Bash
97 lines
No EOL
2.6 KiB
Bash
#!/bin/bash
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# using https://github.com/foundObjects/zram-swap
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VERSION="205ea1ec5b169f566e5e98ead794e9daf90cf245"
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if [ "$1" = status ]; then
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# check if file /home/admin/download/zram-swap/install.sh exists
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#echo "# https://github.com/foundObjects/zram-swap"
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if [ -f /home/admin/download/zram-swap/install.sh ]; then
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echo "downloaded=1"
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else
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echo "downloaded=0"
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fi
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# check if service zram-swap is loaded/active
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#echo "# sudo systemctl status zram-swap"
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serviceLoaded=$(sudo systemctl status zram-swap 2>/dev/null | grep -c loaded)
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if [ ${serviceLoaded} -gt 0 ]; then
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echo "serviceLoaded=1"
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else
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echo "serviceLoaded=0"
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fi
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serviceActive=$(sudo systemctl status zram-swap 2>/dev/null | grep -c active)
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if [ ${serviceActive} -gt 0 ]; then
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echo "serviceActive=1"
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else
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echo "serviceActive=0"
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fi
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exit 0
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fi
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# command info
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if [ $# -eq 0 ] || [ "$1" = "-h" ] || [ "$1" = "-help" ]; then
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echo "config script to install ZRAM"
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echo "blitz.zram.sh [on|off|status]"
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echo "using https://github.com/foundObjects/zram-swap"
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exit 1
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fi
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echo "# mkdir /home/admin/download"
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mkdir /home/admin/download 2>/dev/null
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cd /home/admin/download || exit 1
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if [ ! -d zram-swap ]; then
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echo "# download script"
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sudo -u admin git clone https://github.com/foundObjects/zram-swap.git
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echo "# cd zram-swap"
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cd zram-swap || exit 1
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echo "# check version"
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sudo -u admin git reset --hard $VERSION || exit 1
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echo "# version OK"
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else
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echo "# script available"
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cd zram-swap || exit 1
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echo "# directory OK"
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fi
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if [ "$1" = on ]; then
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echo "# install zram-swap"
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if [ $(sudo cat /proc/swaps | grep -c zram) -eq 0 ]; then
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# install zram to 1/2 of RAM, activate and prioritize
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sudo /home/admin/download/zram-swap/install.sh
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# make better use of zram
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echo "# RaspiBlitz Edit: blitz.zram.sh" | sudo tee -a /etc/sysctl.conf
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echo "vm.vfs_cache_pressure=500" | sudo tee -a /etc/sysctl.conf
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echo "vm.swappiness=100" | sudo tee -a /etc/sysctl.conf
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echo "vm.dirty_background_ratio=1" | sudo tee -a /etc/sysctl.conf
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echo "vm.dirty_ratio=50" | sudo tee -a /etc/sysctl.conf
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# apply
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sudo sysctl --system
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echo "# ZRAM is installed and activated"
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else
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echo "# ZRAM was already installed and active."
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fi
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echo "Current swap usage:"
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sudo cat /proc/swaps
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exit 0
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fi
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if [ "$1" = off ]; then
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echo "# deinstall zram-swap"
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sudo /home/admin/download/zram-swap/install.sh --uninstall
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sudo rm /etc/default/zram-swap
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sudo rm -rf /home/admin/download/zram-swap
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echo "ZRAM was removed"
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echo "Current swap usage:"
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sudo cat /proc/swaps
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exit 0
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fi
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echo "FAIL - Unknown Parameter $1"
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exit 1 |