How To Install Debian 12 With Disk Encryption Enabled

How to Install Debian 12 with Disk Encryption Enabled

Login to CrownPanel for managing the server.
To start the installation, you will have to mount the Debian 12 ISO. To mount the ISO click on CD-ROM and then select the required ISO from the drop-down menu and click on Mount button(It will take 2-3 minutes)
Once the ISO has mounted (Task Log tab will show the status of the task), navigate to "Power Control" tab and then perform a Reboot task on the server.

You can also perform a soft reboot from the VNC, by clicking on the Send Ctrl+Alt+Del button.
Now Launch VNC to start the installation.
Select your preferred language and click on continue.
Select your Location,
Enter the Hostname, In this example we will use "server".

You can also add a different Hostname that will better suit your operation.
Set the Domain Name if you want to use or leave it blank.
Next, provide root password for the server.

We generally recommend a strong password to begin with which helps in keeping the server safer. Check out Password Generator to generate a strong password for you.
We will create a new user for the system. For this, you will have to start with adding a Real name for the user.
Next, Create the new user. Enter a Username that will be used for non-administrative purposes.
Enter the password for the new user. Again, we recommend a strong password, from Password Generator.
Select the time-zone.

Disk Partitioning with Encryption Enabled

For disk partitioning, there is an option use entire disk and set up encrypted LVM. We will guide you through, including setting up full disk encryption with LVM.

If there is Multiple Disks are there then you can select the disk according, the system selected itself due to single disk.

You can select All Files or you can select only /home,/var etc directories.

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.

If you want to use only some GB instead of full disk space you can put the size as below,

In this example, we will go with Manual partitioning. But if you go with guided, system will auto-generate all the standard partitioning that is required for the OS to run.

Select Yes to proceed further, this will overwrite the changes made on the partitioning to the disk.
You can select No here, we do not have any other ISO medium to scan.
Depending on the location of your server or system, you can select the nearest country for the mirror.
Select the Debian archive mirror.
You can leave it blank and click on continue.
As per your choice, you can select either to opt for sending anonimous data or not here.
Choose the additional softwares to install. Generally, you will need "SSH Server", "standard system utilities" as part of a minimal install.

But if you're looking for a GUI install, you can choose "Debian desktop environment" along with your choice of user interface - GNOME, Xfce etc.
Select Yes to install GRUB.
Select the partition to install the GRUB boot loader, this will make your newly installed system bootable. For example -- In our case, it is partition /dev/vda.

Important: After the installation has completed unmount the ISO and reboot the server.
After the umount and reboot -- Wait for a few minutes and then you will get login access.