devfs in jails

Matthew Dillon dillon at
Mon Oct 26 11:04:44 PDT 2009

:I've configured a jailed system in 2.5.1-DEVELOPMENT on a Dell Mini 9
:[1]. Most everything works as expected following the man page.
:elijah at bop:~> jls
:JID	Hostname	Path	IPs
:5	blip	/usr/jail/blip	2001:05c0:1105:1201::0001
:Very cool. The one trouble I ran into is with devfs. The Handbook
:refers to MAKEDEV. Is MAKEDEV still used in 2.4, or is the Handbook
:just out of date? I was able to get SSH working in the jail once I got
:devfs working via a 'mount_devfs devfs /usr/jail/blip/dev'.
:Is this the right way to mount devfs in a jail?

    MAKEDEV is no longer used in 2.4, the handbook is out of date.

    The easiest way to create a dev inside your jail is to use
    something like 'mount_null /dev /path/to/jail/dev'.  You can
    also directly use 'mount_devfs /path/to/jail/dev'.

					Matthew Dillon 
					<dillon at>

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