Apple Macintosh PowerBook 1400 - Manual (Page 54)

11 Turn on the other SCSI devices in the chain, if any.
12 Turn on the other computer.
The PowerBook appears as a hard disk icon on the screen of the computer
you connected it to. You can now transfer and use files as if the Macintosh
PowerBook were an external disk drive.
WARNING If you do not see the SCSI icon, and the computer starts
normally or displays an error message, press the Power key to shut down
(if you can) and then immediately disconnect your computer from the
SCSI chain. (If you can’t choose Shut Down, try pressing the reset
button. If you cannot shut down your Macintosh PowerBook, you
should disconnect the cable anyway, or you may lose information.) Then
go back and repeat steps 5 through 9, making sure to use the proper
cables.
You cannot have password protection turned on in the Password Security
control panel while using your PowerBook in SCSI disk mode. Turn
password protection off if you experience problems. See “How do I turn
password security on and off?” in the “Setting Options” topic area of
Mac OS Guide, available in the Guide (h) menu.
54 Chapter 3