Path: utzoo!attcan!utgpu!jarvis.csri.toronto.edu!mailrus!purdue!gatech!hubcap!ncrcae!cs-col!gregory From: gregory@cs-col.Columbia.NCR.COM (Clark Gregory) Newsgroups: comp.sys.ibm.pc Subject: Re: Disk Driver Formatting in Summary: Check strapping of flex if DIR shows old directory Message-ID: <296@cs-col.Columbia.NCR.COM> Date: 3 Oct 89 13:17:21 GMT References: <89274.031211DLV101@PSUVM.BITNET> <3862.25268ef6@uwovax.uwo.ca> Reply-To: gregory@cs-col.Columbia.NCR.COM (Clark Gregory) Organization: NCR Customer Services Support Team, Columbia, SC Lines: 29 In previous articles (I missed the origional) I have seen: > I have a disk drive.... When I start the system the first diskette I read > will have a proper directory, but any other diskette later will give me > the SAME directory as the first.... There is a strap on flex drives that effects the use of pin 34 of the interface. Some systems use this signal to indicate that a flex is present and ready while the AT uses this to indicate that the door has been opened (ie it dies not have to read the directory again). There is a strap in the drive that indicates how this signal is to be used. I suggest you check the technical information with the drive if possible or a local store may have this information available also. Also refer to the book listed below. I suggest you get this fixed, else MS/DOS may write the directory and FAT table of the first disk to the second disk. (NOT very nice of it!) Give credit where due: This is discussed in the book: Upgrading and Repairing PCs By: Scott Mueller Pub: Que Corp, Carmel Indiana. Should be available at local book stores (My local computer store doesnt seem to believe in little things like documentation). See page 312 on. Clark Gregory Customer services NCR Corp, E&M Columbia (HOME OF THE UNIX TOWER - Thats right UNIX)