![]() ![]() At the GRUB menu, enter e to edit, add break=mount to the end of the linux line for the kernel, then press F-10 to boot. Output is Version: 2 and in Keyslots there is a single occupied slot - 0: luks2 - containing the encryption passphrase.Įxisting LUKS2 devices can be converted to LUKS1, but not on a mounted filesystem. Debian's installer by default creates LUKS2 devices.Ĭheck the LUKS format version on the root device (example: vda3) by running luksDump. Important! To enable GRUB to unlock a LUKS encrypted device that contains /boot that device needs to be in LUKS format version 1. Install DebianĪ visual walk-through using the Debian network installer to create a console-only base configuration using LVM on LUKS. My example system uses UEFI boot and the encrypted partition is vda3. Installing LVM on top of the encrypted partition allows the creation of multiple LVs protected by a single passphrase, and dynamic resizing of LVs as needed. The following steps install a minimal Debian setup that makes use of the entire disk - minus a small OS independent efi partition - as a single Linux Unified Key Setup (LUKS) encrypted partition that is used by the Logical Volume Manager (LVM) to create "virtual partitions" ( Logical Volumes or LVs). Debian's installer does not provide the option of encrypting boot. However, GRUB2 does support booting from an encrypted boot courtesy of its cryptodisk module. This allows the boot loader to discover the Linux kernel before proceeding to decrypt and mount other partitions. Linux installers that encrypt root and home and swap usually create a separate, unencrypted boot partition. All sorts of sensitive information can seep into logs, temp files and swap memory. Plus you really want to encrypt everything (not just home). ![]() Home → Archive ↴ Full disk encryption (including boot) on Debian Bookwormĭevices that go out and about such as laptops and backup external drives should have their contents encrypted to guard against loss or theft. ![]() Full disk encryption (including boot) on Debian Bookworm ☯ Daniel Wayne Armstrong Daniel Wayne Armstrong ![]()
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