humfsify(1) on Linux
The text a8a6e01225a4, as Debian 13 (Trixie), Debian 12 (Bookworm), Debian 11 (Bullseye), Debian 10 (Buster), Debian 9 (Stretch) shipped it. The page shows this text now.
convert a directory to the format needed by the UML humfs file system