/ must be adequate to boot, restore, recover, and/or repair the system.

• Minimal Mounting
• Unshareable System-Specific Configuration
• Minimize Vulnerability

Required	bin	Essential command binaries
	boot	Static boot loader files
	dev	Device files
	[etc, lib, media, mnt, opt, sbin, srv, tmp, usr, var]	specified
Specific Options	home	User home directories
	lib*	Alternate format libraries
	root	Root user home directory

Applications must never create files or subdirectories in root.

• Demands Space, Performance, And Security
• Interferes With Administration