rsync_restore/lib.sh

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requestPartTable() {
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lsblk -o NAME,LABEL,FSTYPE,SIZE,MOUNTPOINT,MODEL
until [ ! -f $targetDrive ]
do
read -p "Target drive is " targetDrive
targetDrive=/dev/$targetDrive
done
echo "Encrypted?"
while read -r -n 1 -s answer ; do
if [[ $answer = [YyNn] ]]; then
[[ $answer = [Yy] ]] && encryptedDevice=true && echo "WARNING You will be asked for password later" #read -p "Password: " encryptedPassword
[[ $answer = [Nn] ]] && encryptedDevice=false
break
fi
done
#get swap size
swapSize=$(free -m | grep "Mem" | awk '{print $2}') #get ram size
read -p "Enter extra amount of swap (empty == 512):" swapExtra #request extra swap above ram size
[ -z "$swapExtra" ] && swapExtra=512
let "swapSize += swapExtra" #add 512 mbs to swap
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swapSize=$swapSize"M"
return $TRUE
}
setPartitions(){
##clear mbr for sure
dd if=/dev/zero of=$targetDrive count=512
# partition scheme:
# 1. swap
# 2. boot
# 3. root
##fdisk
echo "==> Partitioning..."
(
echo o # Create a new empty DOS partition table
echo n # Add a new partition
echo # Primary partition
echo # Partition number
echo # First sector (Accept default: 1)
echo +$swapSize # Last sector (Accept default: varies)
echo y #remove sign
echo n
echo
echo
echo
echo +$bootSize
echo y
echo n
echo
echo
echo
echo
echo w
) | fdisk $targetDrive
# IMHO this ^ is less obfuscated way
##mkfs's
echo "==> Making filesystems..."
mkswap $targetDrive"1"
mkfs.vfat $targetDrive"2"
if $encryptedDevice #how to push password?
then
cryptsetup luksFormat -v $targetDrive"3"
cryptsetup open $targetDrive"3" targetLuks
mkfs.ext4 /dev/mapper/targetLuks
else
mkfs.ext4 $targetDrive"3"
fi
##get disk's uuid
echo "==> Getting UUIDs..."
UUIDS=($(blkid $targetDrive"1" $targetDrive"2" $targetDrive"3" -o value -s UUID)) #created array of swap/boot/root UUIDs
if $encryptedDevice
then
UUIDS[3]=UUIDS[2]
UUIDS[2]=`blkid /dev/mapper/targetLuks -o value -s UUID`
fi #now we have swap/boot/root/luks UUIDs
##mount disks
echo "==> Mounting..."
[ $encryptedDevice ] && mount /dev/mapper/targetLuks /mnt || mount $targetDrive"3" /mnt
mkdir /mnt/boot
mount $targetDrive"2" /mnt/boot
}