fvdemount(1) on Linux
The text 6659f5156d9a, as Debian 12 (Bookworm), Debian 11 (Bullseye), Debian 10 (Buster) shipped it.
mounts a FileVault Drive Encrypted (FVDE) volume
Flags it lists
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-V -
-X -
-e -
-h -
-o -
-p -
-r -
-v