Diff for "ManualFullSystemEncryption/DetailedProcessPrepareInstall"

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← Revision 7 as of 2020-10-13 12:27:15 → ⇥
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Editor: paddy-landau
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## page was renamed from ManualFullSystemEncryption/DetailsProcessPrepareInstall
## page was renamed from ManualFullSystemEncryption/DetailedProcessSetUpLVM
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#title Manual Full System Encryption (with Extras): Detailed Process: Set up LVM #title Manual Full System Encryption (with Extras): Detailed Process: Prepare for the Installer
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The system partition and, if you have one, the data partition have been encrypted and unlocked. They appear to the system to be clear space, so they still need (logical) partitions and file systems.

You will use the LVM (logical volume manager) to do this, and then you will create the relevant file systems (i.e. format them).		 You will download and run the script (application) that will:
 * Prepare your partitions for the installer
 * Run the installer
 * Fix problems created by the installer
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= Set up partitions for LVM = = Download the application =
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Enter the following commands to prepare the unlocked system partition for LVM.
{{{
sudo pvcreate /dev/mapper/system
sudo vgcreate system /dev/mapper/system		  * Open the terminal (`Ctrl`+`T`, or use the menu).

 * Copy-and-paste the following command to download the application. Warning: This looks like two lines because of the documentation formatting, but it's in fact just one line. Copy the entire thing and paste it into your terminal.
 {{{
sudo wget --no-verbose --output-document=/usr/local/sbin/encryptinstallation https://www.dropbox.com/s/dmqnzqs1bbp6dm9/encryptinstallation?dl=1
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Only if you have a separate data partition, enter the following commands to prepare the unlocked data partition for LVM.
{{{
sudo pvcreate /dev/mapper/data
sudo vgcreate data /dev/mapper/data		  * Copy-and-paste the following command to enable the application to run.
 {{{
sudo chmod +x /usr/local/sbin/encryptinstallation
}}}

 * If you are trying to install Ubuntu 18.04, skip this step. But, if you are trying to install Ubuntu 20.04, copy-and-paste the following command.
 {{{
sudo sed --in-place -e 's/luksFormat/luksFormat --type=luks1/' /usr/local/sbin/encryptinstallation
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= Partition the partition = = Run the application =
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At this point, LVM is controlling the encrypted partitions, and it will therefore control the virtual partitioning (known as logical volumes). Here, we finally create the logical volumes (pseudo-partitions) for the system. In a moment, you will start the application. When you do so:
 * It will ask you some questions.
 * It will prepare your system for the Installer.
 * It will start the Installer.
 * When it starts the Installer, you will need to [[../DetailedProcessInstallUbuntu|open the instructions]] (I'll remind you).
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'''In this section, you can ignore anything about swap if you have Ubuntu version 18.04 or later. Swap is relevant only to systems prior to 18.04.''' So…
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Enter the following commands, but take note of the following change.
 * In this example, the size of the swap is 4096MB (note that it's just "M" in the command, not "MB"). However, you must change 4096 to whatever size you calculated in the [[../OverviewPartitionPreparation|Partition Overview]]. (If you have Ubuntu 18.04 or later, omit the line with "swap".)		 Still in the terminal, enter this command:
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sudo lvcreate --size=512M --name=boot system
sudo lvcreate --size=4096M --name=swap system
sudo lvcreate --extents=100%FREE --name=root system		 encryptinstallation
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Only if you have a separate data partition, enter the following command.
{{{
sudo lvcreate --extents=100%FREE --name=home data
}}}		 Answer the questions, and when the Installer starts, [[../DetailedProcessInstallUbuntu|open the instructions]].
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= Format the partitions =


 format::
 :: Create a file system on a partition

It is time to create the file systems on your logical volumes (virtual partitions).

Open a terminal and enter these commands. Pay attention to the difference between `ext3` and `ext4`; although `ext4` is a later version, boot has to use the earlier version. (If you have Ubuntu 18.04 or later, omit the line with "swap".)

{{{
sudo mkswap --label=swap /dev/mapper/system-swap
sudo mkfs.ext3 -L boot /dev/mapper/system-boot
sudo mkfs.ext4 -L root /dev/mapper/system-root
sudo mkfs.ext4 -L home /dev/mapper/data-home # Only if you have a separate data partition
}}}


= Summary =


The system is ready for the Ubuntu Installer.

 * Close the terminal.
 * Return to the [[../DetailedProcess#The_stages|detailed process]] and continue from there.

This document belongs to Manual Full System Encryption (with Extras): Detailed Process.

1. Explanation

You will download and run the script (application) that will:

  • Prepare your partitions for the installer
  • Run the installer
  • Fix problems created by the installer

2. Download the application

  • Open the terminal (Ctrl+T, or use the menu).

  • Copy-and-paste the following command to download the application. Warning: This looks like two lines because of the documentation formatting, but it's in fact just one line. Copy the entire thing and paste it into your terminal. 
    sudo wget --no-verbose --output-document=/usr/local/sbin/encryptinstallation https://www.dropbox.com/s/dmqnzqs1bbp6dm9/encryptinstallation?dl=1
  • Copy-and-paste the following command to enable the application to run. 
    sudo chmod +x /usr/local/sbin/encryptinstallation
  • If you are trying to install Ubuntu 18.04, skip this step. But, if you are trying to install Ubuntu 20.04, copy-and-paste the following command. 
    sudo sed --in-place -e 's/luksFormat/luksFormat --type=luks1/' /usr/local/sbin/encryptinstallation

3. Run the application

In a moment, you will start the application. When you do so:

  • It will ask you some questions.
  • It will prepare your system for the Installer.
  • It will start the Installer.

  • When it starts the Installer, you will need to open the instructions (I'll remind you).

So…

Still in the terminal, enter this command: 

encryptinstallation

Answer the questions, and when the Installer starts, open the instructions.

ManualFullSystemEncryption/DetailedProcessPrepareInstall (last edited 2020-10-13 12:27:15 by paddy-landau)