Now I have tried a little harder!

[EMAIL PROTECTED] antonovich]$ superformat /dev/fd0 sect=21 cyl=83
Measuring drive 0's raw capacity
In order to avoid this time consuming measurement in the future,
add the following line to /etc/driveprm:
drive0: deviation=-1600
CAUTION: The line is drive and controller specific, so it should be
removed before installing a new drive 0 or floppy controller.

 Verifying cylinder  0, head 0 Error, 6656 bytes remaining
 Verifying cylinder  0, head 1 lseek: Invalid argument
 Verifying cylinder  0, head 0 Error, 6656 bytes remaining
 Verifying cylinder  0, head 1 lseek: Invalid argument


[EMAIL PROTECTED] antonovich]$ floppymeter --hd /dev/fd0
Warning: all data contained on the floppy disk will be lost. Continue?
y
 _____________________________________________
|rotations  |average    |sliding    |missed   |
|since start|time per   |average of |rotations|
|of test    |rotation   |the last   |         |
|           |since start|10         |         |
|           |of test    |rotations  |         |
|===========|===========|===========|=========|
|  1000     |  199674   |  199660   |  0      |
|___________|___________|___________|_________|

capacity=199704 half bits (should be 200000 half bits)
time_per_rotation=199674 microseconds (should be 200000)
data transfer rate=500075 bits per second (should be 500000)

deviation on capacity: -1480 ppm
deviation on time_per_rotation: -1630 ppm
deviation on data transfer rate: +150 ppm

Insert the following line to your /etc/driveprm file:
drive0: deviation=-1480

        I then proceeded to create a /etc/driveprm and enter drive0:
         deviation=-1480 in it I then got


[EMAIL PROTECTED] antonovich]$ superformat /dev/fd0 sect=21 cyl=83
 Verifying cylinder  2, head 0 read: Input/output error
 Verifying cylinder  2, head 1 read: Input/output error
 Verifying cylinder  2, head 0 read: Input/output error
 Verifying cylinder  2, head 1 read: Input/output error

     It seems that I get this for each time because after this i repeated and got         one track further...


 [EMAIL PROTECTED] antonovich]$ superformat /dev/fd0 sect=21 cyl=83
 Verifying cylinder  3, head 0 read: Input/output error
 Verifying cylinder  3, head 1 read: Input/output error
 Verifying cylinder  3, head 0 read: Input/output error
 Verifying cylinder  3, head 1 read: Input/output error
[EMAIL PROTECTED] antonovich]$ superformat /dev/fd0 sect=21 cyl=83
 Verifying cylinder  4, head 0 read: Input/output error
 Verifying cylinder  4, head 1 read: Input/output error
 Verifying cylinder  4, head 0 read: Input/output error
 Verifying cylinder  4, head 1 read: Input/output error
[EMAIL PROTECTED] antonovich]$ superformat /dev/fd0 sect=21 cyl=83
 Verifying cylinder  5, head 0 read: Input/output error
 Verifying cylinder  5, head 1 read: Input/output error
...



Now I would like some answers! I guess this is what the man pages mean by "

       I/O errors during verification
              Your  drive  may  be  too far out of tolerance, and you may thus
              need to supply a margin parameter.  Run floppymeter (see section
              floppymeter)  to  find out an appropriate value for this parame-
              ter, and add the suggested margin parameter to the command line.

Because I can't work out what a "margin parameter" is otherwise, and floppymeter mentions nothing in the man about margins in the command line.
Suggestions most welcome! tia
Anton

sionii wrote:
As the errata states it is impossible to create a boot floppy as there is
not sufficient room on a 1.44 MB floppy!. The kernel just got too big. The
eratta goes on to suggest formatting a 1.7MB floppy with superformat or
fdformat. I got lost trying to do this. Can someone who has succeeded in
making a boot floppy tell me how it's done.
Thanks, in advance.
John


  

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