If I want to run Ubuntu Server on a Raspberry Pi4 can I encrypt the SD card like an encrypted disk? If not is the next best thing to encrypt the home directory?
1 Answer
Yes encryption is supported.
However, the Pi4 bootloader cannot currently (late 2021) handle the normal Ubuntu Server installer. You must install LUKS and run cryptsetup manually after booting your newly-flashed system.
If you don't know how LUKS and cryptsetup work, review a few tutorials and perhaps practice in a VM before encrypting your real system.
Reminder: If booting from an SD card, recall that they wear out. The moment the SD card dies your encrypted data becomes forever inaccessible unless you are prepared.
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@acmpo6ou Deliberately. If you need more detail than "You must install LUKS and run cryptsetup manually after booting your newly-flashed system", then you are not ready for the process. Much may go wrong. Dec 16, 2023 at 14:26