How to Install AlmaLinux 10 with Disk Encryption Enabled

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Disk Encryption is the process of converting data on a disk into a form that cannot be easily understood by unauthorized people. Full disk encryption (FDE) protects all the data on the disk by encrypting it. When combined with LVM (Logical Volume Management), it offers a secure and flexible storage setup, allowing you to manage disk space more efficiently while keeping your data safe.

Login to your Panel (https://crownpanel.com/)

• To start the installation, first, mount the AlmaLinux ISO.

Mounting the AlmaLinux ISO Image

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• To mount the ISO select the CD-ROM Tab, Select the AlmaLinux ISO from the drop-down named AlmaLinux 10 x86_64 and click on the Mount button.

Please note: The ISO mount may take up to 2-3 minutes to complete.

• Once the ISO has mounted (the Task Log tab will show the status of the task), navigate to the "Power Control" tab and then perform a Reboot task on the server.

• Now, switch to the VNC tab and click on "Launch VNC" to launch the web-based VNC console and start the AlmaLinux installation.

If the VPS hasn't booted yet into the AlmaLinux installer, please click on the CTRL+ALT+DEL button from the VNC console to send a reboot signal to the VPS to boot into the installer.

Installation Process

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• Once we have booted into the AlmaLinux installer,

• Select "Install AlmaLinux"

• Select the desired language and click on continue.

• Select Network & Hostname and configure.

• If you would like to keep the Network Dynamic / DHCP (default configuration), Enable the network and click on Done.

Disk Partitioning with Encryption Enabled

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• Next, Select Installation Destination.

• There is an option for disk partitioning. We will guide you through the steps, including setting up full disk encryption with LVM.

Encrypt my data

Enter Passphrase: You will be prompted to enter a passphrase. This passphrase is critical as it will be required each time the system boots to unlock the disk. Confirm the passphrase by entering it again.

Note: Make sure to remember this passphrase, as losing it will make your data inaccessible.

Installation Source Configuration

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• Next, select Installation Source.

• Select auto-detected installation media -> verify -> Minimal and press Done.

• It'll ask you to change the KDUMP mode to automatic,

Software Selection

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• For Software Selection, you can select the minimal/server option for installation and press Done.

Login Password Configuration

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• Select the root password to set the ‘root’ password

Begin Installation

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• And Begin Installation.

• Upon rebooting, the system will prompt you to enter the encryption passphrase that you set during the installation. This passphrase is required to unlock the encrypted disk and boot the system.

• After installation is completed unmount the ISO and reboot the server. Wait for a few minutes for the reboot to complete, after which you will see the login prompt.

Done! 🎉
With this guide, you're now equipped to confidently install and secure AlmaLinux 10, ensuring your system is both up and running and well-protected.