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