mkdisk(1) on Linux
The text fed635e79f1b, as Debian 13 (Trixie), Debian 12 (Bookworm), Debian 11 (Bullseye), Debian 10 (Buster) shipped it. The page shows this text now.
make a blank emulated floppy or hard disk for xtrs, or add/remove an emulated write-protect tab