Mark McRitchie <[EMAIL PROTECTED]> writes:

> >     default_cylinder
> 0x2492
> 
> >     default_heads
> 0x10
> 
> >     default_sectors_per_track
> 0x3f
> 
> >     legacy_cylinders
> 0x249
> 
> >     legacy_heads
> 0xfe
> 
> >     legacy_sectors
> 0x3f
> 
> >     sectors
> 0x900000

These numbers look reasonable.  VMware is doing the best it can with
the disk size you specified.  0x2492 cyls times 0x10 heads-per-cyl
times 0x3f sectors-per-head is 0x8FFEE0 sectors.  One more cylinder
would put the sector count over the max.

Similarly, 0x249 cyls times 0xff heads-per-cyl times 0x3f
sectors-per-head is 0x8F6709 sectors.

On a real hard drive, the total sector count is usually an integral
number of cylinders.  This explains Unattended's warning message about
the numbers not multiplying out as expected, and it might explain your
troubles with Parted.

To really get this working smoothly, what you want is for the cylinder
count to be an exact integer, both in the "extended" and the "legacy"
BIOS interface.  That means using a sector count which is a multiple
of both 0x10*0x3f and 0xff*0x3f.  Which is to say, a multiple of
257040.

Can you set the disk size to exactly 9253440 sectors (4737761280
bytes)?

Put another way, what units does VMware let you use to specify the
disk size, and what did you specify there to get a sector count of
0x900000?

> Nope, still the same - hangs on the dosemu screen just after
> "DPMI-Server Version 0.9 Installed"

That is almost certainly either a dosemu bug, a Linux bug, or a VMware
bug...

> Other "interesting" thing that _sometimes_ happens when running with any
> taste of SCSI in Vmware...
> For no apparent reason while booting I get a kernel panic when its enabling
> IO-APIC IRQs.

And that is either a bug in Linux or in VMware.  We are using a very
stock kernel.

> Various errors that look like kernel issues. Tries this with the
> latest tftp linuxboot and it seems to be ok though.

When you say "latest tftp linuxboot", do you mean our current testing
release (4.2-rc2)?  The test release has Linux 2.6.6, which may have
fixed some things.

And when you say "seems to be ok", do you mean just that it boots, or
that everything (including dosemu) actually works now?

 - Pat


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