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From: flaps@dgp.toronto.edu (Alan J Rosenthal)
Subject: Re: Internal vs. External? Which one wins?
Message-ID: <1990Sep17.140744.1651@jarvis.csri.toronto.edu>
References: <6947.26f4a5e4@umiami.miami.edu>
Date: 17 Sep 90 18:07:45 GMT
Lines: 21

gross@umiami.miami.edu (JD144) writes:
>If I have a Mac SE with an internal HD with a system, and I then attach
>an external SCSI HD with a higher SCSI ID number than the internal and its
>own system folder...shouldn't the drive with the higher SCSI ID boot before
>the drive with the lower ID number?

Not necessarily.  See the "Startup Device" cdev in your friendly neighbourhood
control panel.  Click on the background of the control panel to select no
drive; otherwise, the selected drive will boot first regardless of scsi
numbers, unless it doesn't exist [or isn't bootable??] in which case the normal
sequence is used.

Note that the startup device cdev doesn't distinguish, in its display, between
the two following states:
	- no scsi number is selected
	- no mounted volume has a scsi number equal to the selected scsi number.
(Similarly, it is not possible to use the startup device cdev to set the
startup scsi number to be a number not corresponding to a currently mounted
volume (except for the special "no number" setting).)

ajr