mdlawler@bsu-cs.UUCP (Mike Lawler) (03/19/89)
I'd like to be able to write to some disks that don't have right protect
noches without having to make a noch in them. Does anyone know of software
that will allow you to write to a right protected disk?
Thanks for any replies.
--
Mike Lawler UUCP: <backbones>!{iuvax,pur-ee}!bsu-cs!mdlawler
ARPA: mdlawler@bsu-cs.bsu.eduwheels@mks.UUCP (Gerry Wheeler) (03/21/89)
In article <6225@bsu-cs.UUCP>, mdlawler@bsu-cs.UUCP (Mike Lawler) writes: > I'd like to be able to write to some disks that don't have right protect > noches without having to make a noch in them. Does anyone know of software > that will allow you to write to a right protected disk? Software will not usually get around this problem, as the electronics in the disk drive will also be involved. What I did was locate the write protect sensor and add a jumper. Most drives now use an infrared sensor, and its resistance drops when illuminated (when the disk is writable). So, all I did was jumper across it (short it out) to simulate a write enabled disk. -- Gerry Wheeler Phone: (519)884-2251 Mortice Kern Systems Inc. UUCP: uunet!watmath!mks!wheels 35 King St. North BIX: join mks Waterloo, Ontario N2J 2W9 CompuServe: 73260,1043
del@Data-IO.COM (Erik Lindberg) (03/21/89)
In article <6225@bsu-cs.UUCP> mdlawler@bsu-cs.UUCP (Mike Lawler) writes: > >I'd like to be able to write to some disks that don't have right protect >noches without having to make a noch in them. Does anyone know of software >that will allow you to write to a right protected disk? >Thanks for any replies. >-- This is absolutely impossible to do in software, as the write protect is controlled in hardware on the disk drive itself. You can write software that will ignore the writeprotect status bit and write to the drive anyway, but the drive will not enable the write gate and nothing will happen to the disk. Assuming that you really want to do this for legitimate purposes (of which there are several) and are not just figuring a new twist on viri, your only option is to modify the circuitry of the drive so that it no longer has a write protect detection. This will allow you to write to the notchless disks, with no special software. You still will no be able to *distribute* software that can do this, but none of the legitimate reasons for doing this require distribution :-) -- del (Erik Lindberg) uw-beaver!tikal!pilchuck!del
jbayer@ispi.UUCP (Jonathan Bayer) (03/23/89)
In article <6225@bsu-cs.UUCP> mdlawler@bsu-cs.UUCP (Mike Lawler) writes: > >I'd like to be able to write to some disks that don't have right protect >noches without having to make a noch in them. Does anyone know of software >that will allow you to write to a right protected disk? This is a hardware modification, not a software mod. You will have to modify the floppy drive to ignore the write-protect line. On older drivers it was an actual mechanical switch, but on the newer drives it is an led. JB -- Jonathan Bayer Beware: The light at the end of the Intelligent Software Products, Inc. tunnel may be an oncoming dragon 19 Virginia Ave. ...uunet!ispi!jbayer Rockville Centre, NY 11570 (516) 766-2867 jbayer@ispi.UUCP
bill@bilver.UUCP (bill vermillion) (03/25/89)
In article <561@ispi.UUCP} jbayer@ispi.UUCP (Jonathan Bayer) writes: }In article <6225@bsu-cs.UUCP> mdlawler@bsu-cs.UUCP (Mike Lawler) writes: }> }>I'd like to be able to write to some disks that don't have right protect }>noches without having to make a noch in them. Does anyone know of software }>that will allow you to write to a right protected disk? } }This is a hardware modification, not a software mod. You will have to }modify the floppy drive to ignore the write-protect line. On older }drivers it was an actual mechanical switch, but on the newer drives it }is an led. } } And on many floppy drives (not all) there is a jumper to reverse the action of the wp sensor. -- Bill Vermillion - UUCP: {uiucuxc,hoptoad,petsd}!peora!rtmvax!bilver!bill : bill@bilver.UUCP