search for: 42xx

...> It is impossible to boot Linux-based ISOs that use Syslinux 6.02 via > CD or DVD on older - non-UEFI - systems. Any attempt to do so will > result in the following error message: ISOLINUX 6.02 ETCDisolinux: > Disk error 01, AX = 4279, drive FE > Error 01 is unsupported operation, 42xx is read, so something is really really wonky as the machine you are on is reporting that the read command doesn't exist. Most likely it is something that is being misinterpreted as an error indication, but *what* is the big question. The very early code that emits this message is *identical*...

Hello, I am working on a legacy BIOS extension that is used to provide a centralised and managed boot process for a secure environment. Due to an assortment of reasons the access to hard disk / CD-ROM devices has had to be implemented at a low level (reading/writing IDE controller registers) rather than relying on the int 13h services provided by the system BIOS. Booting hard disks is working

It occured with every BIOS system I tested on (none of them Dell): 1. HP G62 laptop (i3) 2. Samsung RV520 (i3) Don't know what system Philip Muller uses; have copied him in as he has far more technical knowledge than I do. Syslinux tested from Arch and Manjaro (an Arch derivative). Basically found then when creating latest ISO images. I may be missing something as well about the FMs. Just