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1.44mb B: drive not ready with 2MX in 5155 portable

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    #16
    Originally posted by per View Post
    Perhaps the problem was that the 5.25" drive may have had terminator resistors that caused issues with the 3.5" drives you have?
    Per,
    If the 360K drive was used as Drive A, it would be on the end of the cable right? Wouldn't it need the terminator resistor pack if it's at the end of the cable?

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      #17
      Based on Per's comment, I tried booting the 360k drive again with and without the terminator resistor. In both cases, it booted and loaded 2M-XBIOS from config.sys. But in both cases, I got the familiar "Drive not ready" when I tried to access the 1.44mb drive with dir B:

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        #18
        Originally posted by Gib View Post
        Based on Per's comment, I tried booting the 360k drive again with and without the terminator resistor. In both cases, it booted and loaded 2M-XBIOS from config.sys. But in both cases, I got the familiar "Drive not ready" when I tried to access the 1.44mb drive with dir B:
        Ok. I was just wondering.

        Then I can only imagine that it may be a bug or something in the driver itself. How does it work if you switch the two so the 1.44MB drive becomes drive A (you can still boot 720KB disks* in it)?

        (* These must be real 720KB disks and not just HD disks formatted as 720KB disks.)
        Current systems owned by me:
        Vintage:IBM PC/XT submodel 087 ( 1983 ), [Kon]tiki-100 rev. C (1983), Compaq Portable I ( 1984 ), IBM PC/XT submodel 078 ( 1985 ), IBM PC/XT286 ( ~1986 ), 3x Nintendo Entertainement Systems ( 1987 ).
        Obsolete:Commodore A500 ( ~1990 ), IBM PS/2 model 70/386 type 8570-161 ( 1991 ), Atari Lynx II ( ~1992 ), Generic Intel 486SX PC ( ~1993 ), AT/T Globalyst Pentium w/FDIV bug MB ( 1994 ), Compaq 486DX4 laptop ( ~1995 ).

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          #19
          The 1.44mb drive boots a 720kb floppy, but with or without 2M-XBIOS loaded I get a "Drive not ready" error when I do a dir b: to access the 360kb drive. I think there is some sort of incompatibility between the new and old drives going on here.

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