96 lines
2.3 KiB
Bash
96 lines
2.3 KiB
Bash
#!/bin/bash
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function setup_drive
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{
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local drive="$1"
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parted -s "$drive" -- \
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mklabel gpt \
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unit MiB \
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mkpart '"EFI system partition"' fat32 1 1024 \
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set 1 esp on \
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set 1 legacy_boot on \
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mkpart '"root unused"' ext4 1025 2048 \
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mkpart '"root unused"' ext4 2049 3072 \
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mkpart '"root unused"' ext4 3073 4096 \
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mkpart Encrypted ext4 4097 -1
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until [ -b "$drive"1 ] || [ -b "$drive"p1 ]; do
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sleep 1
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done
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}
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function rename_partition
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{
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local drive="$1"
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local partition="$2"
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local new_label="$3"
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parted -s "$drive" -- name "$partition" '"'"$new_label"'"'
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}
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function drive_list
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{
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drives="$(lsblk -nd -o NAME,TYPE \
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/dev/nvme+([0-9])n+([0-9]) /dev/sd+([a-z]) | \
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grep ' disk' |cut -d\ -f1)"
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}
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function partition_list
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{
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local drive="$1"
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partitions="$(parted -m "$drive" -- print| \
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awk -F: \
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'{if (NR > 2)
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print $1
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}'|xargs echo)"
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}
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function find_unused
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{
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local drive="$1"
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unused="$(parted -m "$drive" -- print|awk -F: \
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'{if (NR > 2 && $1 >= 2 && $6 == "root unused") {
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print $1
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}}'|head -1)"
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}
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function find_oldest
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{
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local drive="$1"
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local current="$(grep -E ^serial: /etc/cloud/build.info |cut -d\ -f2)"
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oldest="$(parted -m "$drive" -- print|awk -F: \
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-v current="root_$current" \
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'BEGIN {min="zzzzz"}
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{if (NR > 2 && $1 >= 2 && $1 <= 4 &&
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$6 < min && $6 != "root unused" &&
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$6 != current) {
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min=$6; part=$1
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}}
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END {print part}')"
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}
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function find_newest
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{
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local drive="$1"
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newest="$(parted -m "$drive" -- print|awk -F: \
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'BEGIN {max=""}
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{if (NR > 2 && $1 >= 2 && $1 <= 4 &&
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$6 > max && $6 != "root unused") {
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max=$6; part=$1
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}}
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END {print part}')"
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}
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function version_from_partnum
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{
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local drive="$1"
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local partnum="$2"
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version="$(parted -m "$drive" -- print|awk -F: \
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-v partnum="$partnum" \
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'{if (NR > 2 && $1 == partnum &&
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$6 != "root unused") {
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print $6
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}}')"
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version="$(echo "$version"|cut -d_ -f2-)"
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}
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# vim: set ft=sh:
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