[syslinux] some thinkpad data

[H. Peter Anvin]

Ferenc Wagner wrote:
> 
> Btw. when I issued sys c: under FreeDOS (after booting the pendrive by
> Syslinux under QEMU), it said:
> 
> Old boot sector values: sectors/track: 49, heads: 24, hidden: 49
> Default and new boot sector values: sectors/track: 63, heads: 64, hidden: 49
> 
> Just to mention one more set of fake geometry values, which shouldn't
> count, but perhaps do (for DOS, at least).  Fdisk reports the "old" set.
> 
> I reinstalled Syslinux, now strings /dev/sda1 | head -1 prints
> FRDOS5.1, but QEMU boots Syslinux, so I'm rather confused...

For DOS, the geometry values definitely matter, unless you mark the 
partition with one of the LBA type values and use DOS 7.10 or later 
(Win95 OSP2, I think.)

	-hpa