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ubuntu_en.md
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This is a script corrections to help the installation of Ubuntu with the full disc encryption. This is a script corrections to help the installation of Ubuntu with the full disc encryption.
These scripts are designed to achieve followings : These scripts are designed to achieve followings :
- Using Ubiquity installer, for the ease of install. - Using Ubiquity installer, for the ease of install.
- Install to the UEFI/BIOS firmware system. - Automatic detection of BIOS/EFI firmware and create MBR/GPT, respectively.
- Install Ubuntu to the LVM/LUKS volume. - Install Ubuntu to the LVM/LUKS volume.
- The /boot is located in the same volume with the "/". Thus, /boot is also encrypted. - The /boot is located in the same volume with the "/". Thus, /boot is also encrypted.
- The swap volume is located inside encrypted volume. - The swap volume is located inside encrypted volume.
@ -12,19 +12,17 @@ These scripts are designed to achieve followings :
By the configuration parameters, you can apply these scripts to relatively wide variation of the system. By the configuration parameters, you can apply these scripts to relatively wide variation of the system.
For example, you can configure the system to accept 2, 3 or 4 distributions in a HDD/SSD, as you want. For example, you can configure the system to accept 2, 3 or 4 distributions in a HDD/SSD, as you want.
Following is the HDD/SSD partitioning plan of these scripts. Following is the HDD/SSD partitioning plan of these scripts ( In case of BIOS, the disk has MBR and doesn't have EFI partition).
![Partition Diagram](image/partition_diagram_0.png) ![Partition Diagram](image/partition_diagram_0.png)
While the EFI partition is depicted here, that is not needed if you install to the system with BIOS. The logical volume size of each Linux distribution ($LVROOT) can be controlled from a configuration parameter.
This can be controllable from a parameter. Also, the size of Linux "/" volume is
configurable from a parameter.
As depicted the LVM volume group has only one physical volume. As depicted the LVM volume group has only one physical volume.
# Test environment # Test environment
These scripts are tested with following environment. These scripts are tested with following environment.
- VMWare Workstation 15.5 ( EFI ) - VMWare Workstation 15.5.7 ( EFI/BIOS )
- Ubuntu 20.04.2 amd64 desktop - Ubuntu 20.04.2 amd64 desktop
- Ubuntu Mate 20.04.2 amd64 desktop - Ubuntu Mate 20.04.2 amd64 desktop
@ -54,17 +52,14 @@ read -sr PASSPHRASE
## Configuration parameters ## Configuration parameters
This is a set of parameter for the configuration of : This is a set of parameter for the configuration of :
- Destroy all partition on a /dev/sda. - Destroy all partition on a /dev/sda.
- Create an 100MB EFI partition in /dev/sda1. - In case of EFI firmware, 100MB is allocated to the EFI partition.
- Rest of the disk space is assigned to the LUKS volume in dev/sda2. - Rest of the disk space is assigned to the LUKS volume.
- The EFI and LUKS partition are /dev/sda1 and /dev/sda2, respectively.
- Create and logical volume group named "vg1" in the encrypted volume. - Create and logical volume group named "vg1" in the encrypted volume.
- Create a swap volume named "swap" in the "vg1". The size is 8GB. - Create a swap volume named "swap" in the "vg1". The size is 8GB.
- Create a volume named "ubuntu" for / in the "vg1". The size of the 50% of the entire free space. - Create a volume named "ubuntu" for / in the "vg1". The size of the 50% of the entire free space.
If you don't like above configuration, you can modify the following parameter before pasting to the shell window. If you don't like above configuration, you can modify the following parameter before pasting to the shell window.
Note : EFI/BIOS detection is done automatically.
If you set the EFIPARTITION to 0, the EFI partition is not created.
If you set the SWAPSIZE is "0", the swap volume is not created.
```bash ```bash
# Device and partition setting. If you wan to MAKE /dev/sda2 as linux root partition, # Device and partition setting. If you wan to MAKE /dev/sda2 as linux root partition,
# set the DEV and CRYPTPARTITION to /dev/sda and 2, respectively. # set the DEV and CRYPTPARTITION to /dev/sda and 2, respectively.
@ -117,7 +112,7 @@ fi
C A U T I O N : Following script destroys all the data in your disk. Make sure you want to destroy all. C A U T I O N : Following script destroys all the data in your disk. Make sure you want to destroy all.
If you want to add a new distribution to the existing distribution, following script block must be skipped. If you want to add a new distribution to the existing distribution, following script block must be skipped.
The GPT for EFI, MBR for BIOS is created.
```bash ```bash
# Optional : Create partitions for in the physical disk. # Optional : Create partitions for in the physical disk.
# Assign specified space and rest of disk to the EFI and LUKS partition, respectively. # Assign specified space and rest of disk to the EFI and LUKS partition, respectively.
@ -179,7 +174,7 @@ if [ ${MAKESWAP} -eq 1 ] ; then lvcreate -L ${SWAPSIZE} -n ${LVSWAP} ${VGNAME} ;
lvcreate -l ${ROOTSIZE} -n ${LVROOT} ${VGNAME} lvcreate -l ${ROOTSIZE} -n ${LVROOT} ${VGNAME}
``` ```
## Run the Ubiquity installer ## Run the Ubiquity installer
Open the Ubiquity installer, configure and run it. Ensure you map the followings correctly ( The host volume name in this example is based on the default values of the configuration parameters. Map the right volumes based on your configuration parameters) Open the Ubiquity installer, configure and run it. Ensure you map the followings correctly ( The host volume name in this example is based on the default values of the configuration parameters. Map the right volumes based on your configuration parameters). In case of BIOS, do not map the /dev/sda for /boot/efi.
Host Volume | Target Directory Host Volume | Target Directory
-----------------------|----------------- -----------------------|-----------------
/dev/sda1 | /boot/efi /dev/sda1 | /boot/efi