Date: Wed, 23 Aug 1995 23:46:52 +0200 (MET DST) From: Didier Derny <didier@aida.org> To: "Justin T. Gibbs" <gibbs@freefall.FreeBSD.org> Cc: Peter Dufault <dufault@hda.com>, questions@FreeBSD.org Subject: Re: Zip drive. Message-ID: <Pine.BSF.3.91.950823232915.813A-100000@aida> In-Reply-To: <199508231516.IAA08462@freefall.FreeBSD.org>
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On Wed, 23 Aug 1995, Justin T. Gibbs wrote: > >> > >> > >> when I was using FreeBSD 2.0 I was able to install a ufs file > >> system on a zip disk. > >> > >> Since I have installed FreeBSD 2.05 I'm unable to do that. > >> > >> I probably missed something with fdisk/disklabel. > > > >What's the symptom? > > > >Peter > >-- > >Peter Dufault Real Time Machine Control and Simulation > >HD Associates, Inc. Voice: 508 433 6936 > >dufault@hda.com Fax: 508 433 5267 > > Most likely your problem is that you are using the whole disk and > attempting to access it with a slice device. > > To get a Zip drive running properly, stick a DOS partition on it, use > FreeBSD's fdisk to change the sysid to 165 (ie ensure that all other > portions of the parition remain untouched), then use the following > disktab entry to slam a disklabel on it: > > zip100|Iomega Zip 100: \ > :ty=winchester:dt=SCSI:se#512:nt#64:ns#32:nc#96:rm#3600:\ > :pa#196576:oa#0:ba#4096:fa#512:ta=4.2BSD: \ > :pc#196576:oc#0: > > The disklabel assumes Adaptec standard geometry, so you may have to > tweek it a bit. > > The label can be installed with a: > > disklabel -w -r /dev/sd2s4 zip100 > ^^<== Partition number from fdisk. > > -- > Justin T. Gibbs > =========================================== > Software Developer - Walnut Creek CDROM > FreeBSD: Turning PCs into workstations > =========================================== > Hi when I use fdisk on the zip drive I get the following message: ioctl DIOCWLABEL: Operation not supported by device. I have a aha1542c scsi controller and the zip drive is seen with: 96 cylinders, 32 sectors, 64 heads. so I inserted your sequence in my disktab file I suppose that 196576 is the number of sector on the parition. from fdisk I get 196607. so I tried with both values. but I get: sd1s4: raw partition size != slice size sd1s4: start 1, end 196607 I tried to install a partition size of 196576 but I get: sd1s4: raw partition size != slice size sd1s4: start 1, end 196576, size 196576 sd1s4c: start 1, end 20000, size 20000 Euh ? I wonder why the said start 1, end 2000 for the c partition. It's very strange. I've not been able to come up with a solution. I probably missed something very important in the fdisk/disklabel manual. by the way, how can I access an existing msdos partition on a zip drive ? Is there any FAQ about the zip drive ? if there is not any FAQ for the zip drive I can try to write one after having resolved my problems. -- Didier Derny didier@aida.org
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