ext4 filesystem "MNT" has 0 protectors and 0 policies. Only root can create fscrypt metadata on this filesystem. ext4 filesystem "MNT" has 0 protectors and 0 policies (only including ones owned by fscrypt-test-user or root). Only root can create fscrypt metadata on this filesystem. # Encrypt, lock, and unlock as root "MNT/dir" is now locked. # Encrypt as root with user's login protector IMPORTANT: See "MNT/dir/fscrypt_recovery_readme.txt" for important recovery instructions. It is *strongly recommended* to record the recovery passphrase in a secure location; otherwise you will lose access to this directory if you reinstall the operating system or move this filesystem to another system. Protector desc1 no longer protecting policy desc2. "MNT/dir" is now locked. Enter login passphrase for fscrypt-test-user: "MNT/dir" is now unlocked and ready for use. # Encrypt as user (should fail) [ERROR] fscrypt encrypt: user lacks permission to create fscrypt metadata on MNT For how to allow users to create fscrypt metadata on a filesystem, refer to https://github.com/google/fscrypt#setting-up-fscrypt-on-a-filesystem # Encrypt as user if they set up filesystem (should succeed)