84 lines
1.6 KiB
Bash
Executable File
84 lines
1.6 KiB
Bash
Executable File
#!/bin/sh
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# Credits go to: https://github.com/home-assistant/operating-system/
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set -e
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#### Options ####
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TYPE=""
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MOUNT=""
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DEVICE=""
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SIZE=0
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#### Parse arguments ####
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while [ "$1" != "" ]; do
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key=$1
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case $key in
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-t|--type)
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TYPE=$2
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shift
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;;
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-s|--size)
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SIZE=$2
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shift
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;;
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-m|--mount)
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MOUNT=$2
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shift
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;;
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*)
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echo "[Error] $0 : Argument '$1' unknown"
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exit 1
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;;
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esac
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shift
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done
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# Valide Type
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if [ "$TYPE" != "swap" ] && [ "$TYPE" != "fs" ]; then
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echo "[Error] Type unknown!"
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exit 1
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fi
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# Lookup device
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if [ "$TYPE" = "swap" ]; then
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DEVICE="/dev/zram0"
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elif [ "$MOUNT" = "ramdisk" ]; then
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DEVICE="/dev/zram1"
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elif [ "$MOUNT" = "var" ]; then
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DEVICE="/dev/zram2"
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#elif [ "$MOUNT" = "tmp" ]; then
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# DEVICE="/dev/zram3"
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else
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echo "[Error] No device for lookup!"
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exit 1
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fi
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# Calc 20% of memory for ZRAM swap partition
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if [ "$TYPE" = "swap" ] && [ "$SIZE" -eq "0" ]; then
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SIZE="$(awk '/MemTotal/{ print $2 * 0.20 }' /proc/meminfo)K"
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fi
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# Init device
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zramctl "$DEVICE" -s "$SIZE" -a lz4
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# Swap
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if [ "$TYPE" = "swap" ]; then
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mkswap -L "ovos-zramswap" "$DEVICE"
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fi
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# FileSystem
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if [ "$TYPE" = "fs" ]; then
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mkfs.ext4 -L "ovos-$MOUNT" -O ^has_journal "$DEVICE"
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fi
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# Copy persistent file structures into zram device
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if [ "$MOUNT" = "var" ]; then
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# Check if this is a first run
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if [ ! -d /mnt/data/var ]; then
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mkdir -p /mnt/data/var
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cp -af /var/* /mnt/data/var/
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fi
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cp -af /mnt/data/var/* "$DEVICE"
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fi
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