Gentoo:/etc/runlevels

	This directory is part of the Gentoo Structure index.
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Contains directories that are the names of customizable modes of operation.

/boot
/default Typical multiuser operation with no restrictions.
/nonetwork Multiuser operation without networking enabled.
/single Automatically boots into single user mode as root without needing root password (helpful if you forget the password for root or need to recover the system without network access)