Path: utzoo!utgpu!news-server.csri.toronto.edu!rpi!uwm.edu!bionet!agate!mindseye!izumi From: izumi@mindseye.berkeley.edu (Izumi Ohzawa) Newsgroups: comp.sys.next Subject: Re: How to boot by default fom an external disk. Message-ID: <1991Apr21.015147.29547@agate.berkeley.edu> Date: 21 Apr 91 01:51:47 GMT References: Sender: root@agate.berkeley.edu (Charlie Root) Distribution: comp Organization: /etc/organization Lines: 30 In article felix@ai.sri.com (Francois Felix INGRAND) writes: > >We just built an external bootable disk for our NeXT Station, and we would like >to boot on it by default. You can change the SCSI ID (target number) of the external drive to 0. Then, the external drive becomes /dev/sd0a, and internal drive will become /dev/sd1a (device names will swap). It should then boot from the external drive by default. As shipped, NeXTstaion 105MB disk has the SCSI ID (target) of 1. This is the lowest numbered ID normally, and NeXT will boot from the device with the smallest SCSI ID. If you put a disk of ID=0, then that will become the boot device. You can open up the slab and raise the SCSI ID of the internal drive to a number larger than the ID of the external drive, but you may have to remove the drive to change it. Usually, SCSI ID jumpers are on the drive PC board, which may not be easily accessible. This is explained in NextAnswers somewhere. Search with keyword "scsi", if you have it. Izumi Ohzawa [ $@Bg_78^=;(J ] USMail: University of California, 360 Minor Hall, Berkeley, CA 94720 Telephone: (415) 642-6440 Fax: (415) 642-3323 Internet: izumi@violet.berkeley.edu NeXTmail: izumi@pinoko.berkeley.edu