79 lines
2.2 KiB
Bash
79 lines
2.2 KiB
Bash
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#!/bin/bash
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set -ex
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[[ $TMPDIR ]] || TMPDIR=/var/tmp
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readonly TMPDIR="$(realpath -e "$TMPDIR")"
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[ -d "$TMPDIR" ] || {
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printf "%s\n" "${PROGNAME}: Invalid tmpdir '$tmpdir'." >&2
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exit 1
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}
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readonly MY_TMPDIR="$(mktemp -p "$TMPDIR/" -d -t ${PROGNAME}.XXXXXX)"
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[ -d "$MY_TMPDIR" ] || {
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printf "%s\n" "${PROGNAME}: mktemp -p '$TMPDIR/' -d -t ${PROGNAME}.XXXXXX failed." >&2
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exit 1
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}
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# clean up after ourselves no matter how we die.
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trap '
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ret=$?;
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[[ $MY_TMPDIR ]] && mountpoint "$MY_TMPDIR"/data && umount "$MY_TMPDIR"/data
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[[ $MY_TMPDIR ]] && rm -rf --one-file-system -- "$MY_TMPDIR"
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exit $ret;
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' EXIT
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# clean up after ourselves no matter how we die.
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trap 'exit 1;' SIGINT
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mem=$(cat /proc/meminfo | { read a b a; echo $b; } )
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mem=$(((mem-1)/1024/1024 + 1))
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mem=${3:-$mem}
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IN=$(readlink -e "$1")
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OUT=$(readlink -e "$2")
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[[ -b ${IN} ]]
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[[ -b ${OUT} ]]
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for i in ${OUT}*; do
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umount "$i" || :
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done
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if [[ ${IN#/dev/loop} != $IN ]]; then
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IN="${IN}p"
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fi
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wipefs --all "$OUT"
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sfdisk -W always -w always "$OUT" << EOF
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label: gpt
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size=512MiB, type=c12a7328-f81f-11d2-ba4b-00a0c93ec93b, name="ESP System Partition"
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size=256M, type=2c7357ed-ebd2-46d9-aec1-23d437ec2bf5, name="ver1", uuid=$(blkid -o value -s PARTUUID ${IN}2)
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size=4GiB, type=4F68BCE3-E8CD-4DB1-96E7-FBCAF984B709, name="root1", uuid=$(blkid -o value -s PARTUUID ${IN}3)
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size=256M, type=2c7357ed-ebd2-46d9-aec1-23d437ec2bf5, name="ver2"
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size=4GiB, type=4F68BCE3-E8CD-4DB1-96E7-FBCAF984B709, name="root2"
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size=${mem}GiB, type=0657fd6d-a4ab-43c4-84e5-0933c84b4f4f, name="swap"
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type=3b8f8425-20e0-4f3b-907f-1a25a76f98e9, name="data"
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EOF
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if [[ ${OUT#/dev/loop} != $OUT ]]; then
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OUT="${OUT}p"
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fi
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if [[ ${OUT#/dev/nvme} != $OUT ]]; then
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OUT="${OUT}p"
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fi
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for i in 1 2 3; do
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dd if=${IN}${i} of=${OUT}${i} status=progress
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done
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# ------------------------------------------------------------------------------
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# swap
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mkswap -L swap ${OUT}6
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# ------------------------------------------------------------------------------
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# data
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echo -n "zero key" \
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