Re: "unable to load basic.system"

[tturner@ecn.ab.ca ()]

Simon Williams (ludditetech@mac.com) wrote:
<snip>
: Incidentally, I did manage to produce bootable disks by repeatedly
: copying and deleting said files.  I'm guessing this would point to the
: drives as the source of the error.(?)
: Also, I wasn't aware that there were compatibility issues with
: BASIC.SYSTEM and ProDOS versions -- though I'm certain that wasn't the
: problem in this case...
: Thanks for the suggestion, any further ideas? How can test a floppy
: drive?

--> I just did a quick check.  Page 133 of the EDD v4 manual, section I,
    is all about adjusting the drive speed of several A2 disk drives.

quote

    The main reason you should adjust your own drive speed, is that
    Apple computer specifications (from 5 or 6 years ago) say that
    a disk drive should run at exactly 300 rpm.  This means that
    most authorized Apple dealers will ONLY adjust the drive speed
    to this specified speed.  As said elsewhere in this manual, we
    have done extensive testing with running disks at different speeds,
    for normal operation and have found that the best "all around"
    drive speed is 298.5 rpm.  We have found that 300 rpm is border
    line on the fast or "high" side.

end of quote

    Admittedly, this doesn't solve your problem; but if you _do_
    need to check your drive speed - EDD is at least one `tool'
    that can do this.  Best wishes in solving your problem.  -Tony T.

--
E.A.G.L.E Librarian   A3 BBS:403/481-3133   email:tturner@ecn.ab.ca