Update install.sh

install.sh

@@ -1,8 +1,22 @@
 #!/bin/bash
 
+### Variables:
+# $dsks = whole lsblk output (e.g. "sda 1,0T, sdb ..")
+# $disk = only selected disk (e.g. "sdc 500G")
+# $dev  = selected disk without size (e.g. "sdd")
+# $main = main partition (e.g. "sde2")
+# $szmn = size of the main partition (e.g. "50")
+# szrt = size of root LVM volume
+# $boot = boot partition (e.g. "sdf1")
+# $host = hostname
+# $user = username
+# $pwur = user password
+# $pwrt = root password
+# $pwcr = encryption password
+
 # Friendly introduction.
 echo "Welcome to the Arch Linux installation script!"
-echo "This script will ERASE ALL DATA on the partition you choose in the next step."
+echo "This script will ERASE ALL DATA on the partition you will choose next!"
 echo
 read -p "Do you want to continue? Type [Y]es or [N]o. " -n 1 -r
 echo    # (optional) move to a new line
@@ -29,6 +43,42 @@ declare -a dsks
 select dev in ${dsks[*]}
 do
 
+echo "Choose a strong password for encrypting the primary partition:"
+while [ -z "$pwcr" ]; do
+echo "Please enter a password: "
+read -s pwfr
+read -s -p "Retype a password: " pwsc
+if [ $pwfr == $pwsc ];
+then
+  pwcr=$pwfr
+  echo
+  echo "Both passwords are the same. Continuing.."
+else
+  echo
+  echo "You have entered different passwords. Try again.."
+fi
+
+# Ask for everything that is necessary later.
+#echo "Before installing the system, please enter a hostname:"
+#echo
+#read host
+#echo
+
+#echo "Please enter a password for the root account:"
+#read pwr
+#echo
+
+#echo "And please enter a username:"
+#read user
+#echo
+#
+#echo "Also please enter a password for your user:"
+#read pwu
+#echo
+#
+#echo "System is getting installed.."
+#echo
+
 # Separate values by spaces.
 IFS=' '
 
@@ -66,33 +116,28 @@ lsblk | grep "$dev"
 sleep 1
 echo
 
-# This needs to be deleted.
-echo $dev > /tmp/dev
-
 # Exit.
 break
 done
 
-# This needs to be deleted.
-# Get variable from filesystem.
-main=$(</tmp/dev)2
+# Get new variable.
+main=$(dev)2
 
 # Encrypting partition.
 echo "Encrypting system partition. This might take a while."
 echo
 
-cryptsetup -c aes-xts-plain -y -s 512 luksFormat /dev/$main &&
+echo -en "&pwcr\n$pwcr" | cryptsetup -c aes-xts-plain -s 512 luksFormat /dev/$main &&
 echo "Partition successfully encrypted."
 echo
 
 # Opening encrypted partition and mounting at /dev/mapper/lvm.
 echo "Decrypting.. This also might take a while."
 echo
-cryptsetup luksOpen /dev/$main lvm &&
+echo -en "&pwcr\n$pwcr" | cryptsetup luksOpen /dev/$main lvm &&
 echo "Partition successfully opened."
 echo
 
-dev="${main%?}"
 lsblk | grep "$dev"
 echo
 
@@ -106,27 +151,6 @@ read szrt
 echo "Creating a $szrt GB root volume.."
 echo
 
-# Ask for everything that is necessary later.
-#echo "Before installing the system, please enter a hostname:"
-#echo
-#read host
-#echo
-
-#echo "Please enter a password for the root account:"
-#read pwr
-#echo
-
-#echo "And please enter a username:"
-#read user
-#echo
-#
-#echo "Also please enter a password for your user:"
-#read pwu
-#echo
-#
-#echo "System is getting installed.."
-#echo
-
 # Creating physical volume.
 echo "Creating physical volume."
 pvcreate /dev/mapper/lvm &&