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 # Yet another Full Disk Encryption for GRUB/Linux
 Helpful scripts of the full disk encryption for the Linux  distribution
+
+This is a script correction to help the installation of Linux distribution with the full disc encryption. Followings are the list of functionality. 
+- Ubuntu and Void Linux.
+- Install from LiveCD/USB.
+- Use GUI installer, for the ease of installation.
+- Automatic detection of BIOS/EFI firmware and create MBR/GPT, respectively.
+- Support to install multiple distributions in a LUKS partition.
+- The "/boot" is located in the same logical volume with the "/". 
+- The swap logical volume is located inside encrypted volume. 
+- You need to type a passphrase only once in the boot sequence. 
+
+With the configuration parameters, you can customize each installation.  For example, you can configure the system to have 2, 3 or 4,... distributions in a HDD/SSD, as you want. 
+
+Following is the HDD/SSD partitioning plan of these scripts ( In case of BIOS, the disk has MBR and doesn't have EFI partition, while it is depicted here). 
+
+![Partition Diagram](image/partition_diagram_0.png)
+
+The logical volume size of each Linux distribution (LVROOTSIZE) can be customized from a configuration parameter. Also, the swap volume size is customizable. 
+
+As depicted the LVM volume group has only one physical volume. 
+
+# Test environment
+These scripts are tested with following environment. 
+- VMWare Workstation 15.5.7 ( EFI/BIOS )
+- Ubuntu 20.04.2 amd64 desktop
+- Ubuntu Mate 20.04.2 amd64 desktop
+
+# Preparation
+Stat the PC with the LiveCD/LiveUSB of the distribution to install. Download this repository from github, and expand it. 
+
+# Installation
+- Ubuntu : Go to the ubuntu sub-directory and follow the procedure in the [INSTALL-ubuntu.md](INSTALL-ubuntu.md)
+
+# Acknowledgments
+These scripts are based on the script shared on the [myn's diary](https://myn.hatenablog.jp/entry/install-ubuntu-focal-with-lvm-on-luks). That page contains rich information, hint and techniques around the encrypted volume and Ubiquity installer. 
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