Re: Problems trying to build 2.88 meg image.
On Sat, 29 Aug 1998, Jeff Noxon wrote:
> On Sat, Aug 29, 1998 at 06:17:35PM -0400, Dale Scheetz wrote:
> > The info pages on mtools has a discussion of geometry, but only 1.44 and
> > below. There is no mention of the 2.88 format.
> >
> > My interest is for a CD boot image, as the ET format will accept a 2.88
> > image. I only need to be able to build one.
>
> If you look in the kernel source (drivers/block/floppy.c), you'll
> find this:
>
> static struct floppy_struct floppy_type[32] = {
> { 0, 0,0, 0,0,0x00,0x00,0x00,0x00,NULL }, /* 0 no testing */
> { 720, 9,2,40,0,0x2A,0x02,0xDF,0x50,"d360" }, /* 1 360KB PC */
> { 2400,15,2,80,0,0x1B,0x00,0xDF,0x54,"h1200" }, /* 2 1.2MB AT */
> { 720, 9,1,80,0,0x2A,0x02,0xDF,0x50,"D360" }, /* 3 360KB SS 3.5" */
> { 1440, 9,2,80,0,0x2A,0x02,0xDF,0x50,"D720" }, /* 4 720KB 3.5" */
> { 720, 9,2,40,1,0x23,0x01,0xDF,0x50,"h360" }, /* 5 360KB AT */
> { 1440, 9,2,80,0,0x23,0x01,0xDF,0x50,"h720" }, /* 6 720KB AT */
> { 2880,18,2,80,0,0x1B,0x00,0xCF,0x6C,"H1440" }, /* 7 1.44MB 3.5" */
> { 5760,36,2,80,0,0x1B,0x43,0xAF,0x54,"E2880" }, /* 8 2.88MB 3.5" */
> { 6240,39,2,80,0,0x1B,0x43,0xAF,0x28,"E3120"}, /* 9 3.12MB 3.5" */
>
> So it looks like 2.88 meg disks simply double the number of sectors/track.
That was exactly what I needed! Thanks!
mformat -t 80 -h 2 -s 36 r:
(with r: set to the file in mtools.conf) and it works!
Thanks for all the help,
Dwarf
--
_-_-_-_-_- Author of "The Debian Linux User's Guide" _-_-_-_-_-_-
aka Dale Scheetz Phone: 1 (850) 656-9769
Flexible Software 11000 McCrackin Road
e-mail: dwarf@polaris.net Tallahassee, FL 32308
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