[syslinux] Problem booting from CF/SD cards and USB Flashdrives using syslinux
H. Peter Anvin
hpa at zytor.com
Fri Aug 24 00:16:06 PDT 2007
c.lee111 at gmail.com wrote:
> Well something is going on that has to do with the geometry of SD/CF
> cards and USB Flashdrives and I don't think it all has to do with with
> the BIOS USB ZIP issue either. I'm tending to think Syslinux maybe
> is touchy in reguards to what drive geometry (number of cylinders
> in particular) a usb SD/CF card or USB flashdrive is formatted with.
> Like I said before it's pretty much the only thing that would explain
> why usb cards and flashdrives I formatted to be bootable under windows
> 98 would boot, (and they weren't patitioned using zip drive or floppy
> geometry) but the same cards and drives wouldn't boot on the same
> machine using syslinux untill I went and changed the card or drive
> geometry to either 64 32 or 255 63 using mkdiskimage under linux, which
> basically changed the number of cylinders from being over 1024 to
> being under 1024.
SYSLINUX requires that the BIOS is self-consistent, that is, that it
reports the same geometry that it itself expects to use -- except, of
course, unless it is in LBA mode.
There seems, unfortunately, to be some BIOSes which say one thing and do
More information about the Syslinux