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Date:      Wed, 8 Jan 1997 21:00:57 +0000 (GMT)
From:      Rob Hartill <robh@imdb.com>
To:        Jerry Alexandratos <alexandr@louie.udel.edu>
Cc:        freebsd-questions@freebsd.org
Subject:   RE: Jaz drive. How to ? 
Message-ID:  <Pine.BSF.3.91.970108202059.245A-100000@localhost>
In-Reply-To: <9701081910.aa26142@stimpy.eecis.udel.edu>

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Thanks Jerry, the disktab was just what I needed to get the ball rolling.

For the benefit of the archives, here's a step by step to create a ready
to use Jaz cartridge that uses the entire 1Gb in one partition.



0)	Find out where your jaz drive lives:

	Look for 'iomega' in /var/log/messages   e.g.

	Jan  8 10:49:56 localhost /kernel: (ahc0:5:0): "iomega jaz 1GB H$70" type 0 remo vable SCSI 2
	Jan  8 10:49:56 localhost /kernel: sd1(ahc0:5:0): Direct-Access
                                           ^^^

	Later steps use "sdX" instead of "sd1" to try to avert disasters

==============
1)	Low-level format the cartridge with:

	scsiformat -w sdX

	(this takes several minutes)
==============
2)	Add a new entry to /etc/disktab

jaz1gb|Iomega Jaz 1GB - FreeBSD: \
        :ty=removable:dt=SCSI:se#512:nt#64:ns#32:nc#1021:rm#5394:\
        :pa#2090976:oa#0:ba#4096:fa#1024:ta=4.2BSD: \
        :pc#2090976:oc#0:
==============
3)	Label the disk

	disklabel -r -w sdX jaz1gb

	(this takes several minutes)
==============
4)	Prepare a filesystem on the disk

	newfs /dev/sdXc
==============

At this point you can do whatever you prefer, but here's what I did..


5)	add the disk to /etc/fstab   e.g.

	/dev/sdXa                       /jaz            ufs     rw,noauto 1 1

	mkdir /jaz

==============
6)	Mount the new disk when needed

	mount /jaz


corrections/improvements welcomed.

-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=


Thanks again to Jerry for getting me started. I was going around in circles.
	


> Use scsiformat to low-level format the jaz
> disks.  After that, treat it like any other scsi-drive (eg disklabel and
> newfs it).  I use the following disktab:
> 
> jaz1gb|Iomega Jaz 1GB - FreeBSD: \
>         :ty=removable:dt=SCSI:se#512:nt#64:ns#32:nc#1021:rm#5394:\
>         :pa#2090976:oa#0:ba#4096:fa#1024:ta=4.2BSD: \
>         :pc#2090976:oc#0:      
> 
> Obviously I use it as just on big partition.  You can always split it up
> however you like it (especially if you like making disktabs off the top
> of your head 8).  Or, try using sysinstall to do the partitioning and
> labelling.
> 
>        --Jerry
> 
> 8) Jerry Alexandratos          % - %   "Nothing inhabits my    (8 
> 8) alexandr@louie.udel.edu     % - %    thoughts, and oblivion (8
> 8) darkstar@strauss.udel.edu   % - %    drives my desires."    (8
> 


--
Rob Hartill.       Internet Movie Database Ltd.    http://www.imdb.com/  




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