35 lines
1.4 KiB
Bash
Executable File
35 lines
1.4 KiB
Bash
Executable File
#!/bin/bash
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echo "Disk Backup!";
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if [ $# -eq 0 ]; then
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echo "Usage: backup.sh <Block Device in /dev> <Backup disk name>";
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exit 2;
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fi
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echo "Source Disk: /dev/$1";
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echo "Destination Name: $2";
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echo "Press Enter to Start...";
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read;
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mkdir -p /tmp/a;
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dd "if=/dev/$1" status=progress conv=sync,noerror | gzip -6 -c > "/mnt/parts/$2.part.gz";
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echo "Calculating SHA512 sums...";
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((sha512sum "/dev/$1" > "/tmp/a/$1.sum") && dd "if=/tmp/a/$1.sum" bs=128 count=1 "of=/tmp/a/$1.hash" && touch "/tmp/a/1.complete") &
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((sha512sum "/mnt/parts/$2.part.gz" > "/tmp/a/$2.part.gz.sum") && dd "if=/tmp/a/$2.part.gz.sum" bs=128 count=1 "of=/tmp/a/$2-gz.hash" && touch "/tmp/a/2.complete") &
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((gunzip -c "/mnt/parts/$2.part.gz" | sha512sum > "/tmp/a/$2.part.sum") && dd "if=/tmp/a/$2.part.sum" bs=128 count=1 "of=/tmp/a/$2.hash" && touch "/tmp/a/3.complete") &
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until [ -f "/tmp/a/1.complete" ] && [ -f "/tmp/a/2.complete" ] && [ -f "/tmp/a/3.complete" ]; do sleep 0.1; done;
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echo "Hashes:";
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cat "/tmp/a/*.sum";
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echo;
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cmp -s "/tmp/a/$1.hash" "/tmp/a/$2.hash";
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if [ $? -ne 0 ]; then
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echo "Hashes do not match!";
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exit 1;
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fi
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cp -f "/tmp/a/$2-gz.hash" "/mnt/hsums/$2-gz.hash";
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cp -f "/tmp/a/$2.hash" "/mnt/hsums/$2.hash";
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echo;
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echo "Backing up partition table...";
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sfdisk -d "/dev/$1" > "/mnt/tabls/$2.tbl";
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(sha512sum "/mnt/tabls/$2.tbl" > "/tmp/a/$2.tbl.sum") && dd "if=/tmp/a/$2.tbl.sum" bs=128 count=1 "of=/mnt/hsums/$2-tbl.hash";
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rm -rf /tmp/a;
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echo "Finished!";
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exit 0;
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