86c20d84b4
Add prompt after input check Allow user to double check their input by waiting for their action after printing information of
57 lines
1.6 KiB
Bash
Executable file
57 lines
1.6 KiB
Bash
Executable file
#!/bin/bash
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read -p "Drive to backup: " DRIVE_TO_BACKUP
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read -p "Location of backup: " BACKUP_LOCATION
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DEVICE_NAME=$(basename $DRIVE_TO_BACKUP)
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# Create empty dir
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empty_dir=$(mktemp -d)
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BACKUP_LOCATION="${BACKUP_LOCATION}-$(date +'%Y-%m-%d').sqsh"
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CHECKSUM_FILE="$DEVICE_NAME.img.cksum"
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echo
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echo Backup source: $DRIVE_TO_BACKUP
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echo Backup destination: $BACKUP_LOCATION
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echo
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echo Check if your input is correct
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echo Double check the correct usage of source and destination
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echo \"Backup source\" is the drive you want to backup
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echo \"Backup destination\" is where the backup will be stored
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read -n1 -r -s -p $"Press space to continue..."
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mksquashfs $empty_dir $BACKUP_LOCATION -p "$DEVICE_NAME.img f 444 root root dd if=$DRIVE_TO_BACKUP bs=4M" -p "$CHECKSUM_FILE f 444 root root dd if=$DRIVE_TO_BACKUP | cksum"
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# Check Backup integrity by mounting and recalculating checksum from img and dev and compare to .img .img.cksum dev
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echo
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echo Checking Backup integrity ...
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echo
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BACKUP_MNT=$(mktemp -d)
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mount -o ro $BACKUP_LOCATION $BACKUP_MNT
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# Recalculate checksums
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DRIVE_CKSUM=$(dd if=$DRIVE_TO_BACKUP | cksum)
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# Compare checksums
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diff <(echo $DRIVE_CKSUM) <(cat $BACKUP_MNT/$CHECKSUM_FILE)
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if [ $? -ne 0 ]; then
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echo -e "\e[1;41m Backup not consistent! \e[0m"
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exit 1
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fi
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# Recalculate checksums
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IMG_CKSUM=$(dd if=$BACKUP_MNT/$DEVICE_NAME.img | cksum)
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# Compare checksums
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diff <(echo $IMG_CKSUM) <(cat $BACKUP_MNT/$CHECKSUM_FILE)
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if [ $? -ne 0 ]; then
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echo -e "\e[1;41m Backup not consistent! \e[0m"
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exit 1
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fi
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umount $BACKUP_LOCATION
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echo -e "\e[1;42m Backup complete \e[0m"
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