Date: Thu, 26 Dec 1996 03:09:13 +0100 (MET) From: grog@lemis.de To: mike@sentex.net (Mike Tancsa) Cc: questions@FreeBSD.org (FreeBSD Questions) Subject: Re: adding new harddisk Message-ID: <199612260209.DAA15380@freebie.lemis.de> In-Reply-To: <3.0.32.19961217002003.00965790@sentex.net> from Mike Tancsa at "Dec 17, 96 00:20:04 am"
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Mike Tancsa writes: > At 11:31 AM 12/16/96 -0800, Doug White wrote: >> On Mon, 16 Dec 1996, Ozge Uncu wrote: >> >> I have a simple but a terrible problem. I want to add a new > harddisk >> to my PC but I could not. It is SCSI family harddisk with SCSI ID# 6. But I >> can make BIOS to make ID#3. ID#1 and ID#2 is full. >> >> SCSI IDs are set by a hardware jumper setting on the drive itself. See >> the drive's manual for instructions on changing the ID. The devices I've >> seen usually have three jumpers in sequence that are the binary >> representation of the ID. >> >> Having the ID be 6 won't hurt anything; the important thing is that it >> doesn't use the same ID as something else. There's also something about >> boot order, but since you won't be disturbing it you have nothing to worry >> about. > > Take note as well that the Controller has an ID as well.. typically 7 from > what I understand. > > Also, a handy thing to keep in mind for the future if you use ID 6 and then > add another drive later (with a lower ID) is to wire down the drives in the > kernel.... This is all completely correct, but it's probably a good idea to (at least initially) stick to a convention such as some other operating systems impose: disks on ID 0 to 3, tapes on IDs 4 and 5, CD-ROM on ID 6. If you mount your tapes and CD-ROM in a shoebox, you can then move them from system to system relatively easily. Of course, if you have more than 4 disks, 2 tapes or 1 CD-ROM, there's nothing to stop you using other IDs, as long as one is free. None of you guys answered Ozge's real question: > I have the 1st edition of the book written by Nemeth. In this book > it is claimed that there must be a command like "format", but I couldn't > find it. The program is scsiformat, but you almost certainly don't need it. Nemeth and Co. recommend it just to be certain. I'm not sure I agree with them. In any case, that's the easy part. The more difficult part is setting up the disk layout (pages 140-142). Unfortunately, the OS-specific details they describe later in the chapter differ enough from FreeBSD to be almost useless. > Could you explain how can a new harddisk be added to PC running > FreeBSD on it? The simple answer is "Buy 'The Complete FreeBSD'", which describes this procedure in some detail. I'm working on getting it online, but it won't be real soon. Greg
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