How can I rescan the scsi-bus in freebsd?

Mike Meyer mwm-dated-1049475466.b3f14c at
Sun Mar 30 08:57:49 PST 2003

In <20030330174932.H78282-100000 at>, Eveline <eveline at> typed:
> I'd like to know how to rescan the scsi bus in FreeBSD 4.7. I have an
> external scsi harddisk that I only switch on when needed. I would like to
> be able to mount the hd as soon as I've switched it on, without having to
> reboot my FreeBSD machine.

Camcontrol takes a rescan command. "camcontrol rescan all" is the
simple way, but see the camcontrol man page for details on how to
specify what to rescan.

Mike Meyer <mwm at>
Independent WWW/Perforce/FreeBSD/Unix consultant, email for more information.

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