This article is from a FAQ concerning SCO operating systems. While some of the information may be applicable to any OS, or any Unix or Linux OS, it may be specific to SCO Xenix, Open This is an old article about formatting floppy disks on SCO Unix and is only left here for historical purposes. There is lots of Linux, Mac OS X and general Unix info elsewhere on this site: Search this site is the best way to find anything.
To format for Unix use (tar, cpio), just typing "format" is usually all you need. You need the "raw" device, so you'd "format /dev/rfd0135ds18", for example. If you want to do something unusual, format can handle all the odd disk formats too; see the man page. If, however, you want a floppy you can mount, format does not (unlike Windows format) provide that function; use "mkdev fd" instead (see also New to Unix).
To format for Dos use, "dosformat" is what you want.
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Securing a computer system has traditionally been a battle of wits: the penetrator tries to find the holes, and the designer tries to close them. (Gosser)