Few questions about sanhook'ing and BIOS

[mcb30]

(2016-03-06 04:20)mr_jrt Wrote:  I boot XP setup from GRUB4DOS, which has a command line. So I fired that up, and had a look at what GRUB could see via the BIOS. At this point, I get an error from GRUB4DOS that it's "tuning" the geometry of the iSCSI sanhook'ed disk, and then showing it as a CHS drive, not LBA. I suspect this may be incorrect hooks into int13 by iPXE? (btw, the target is a 10GB VHD on my other machine.)

I'm going to try using a smaller VHD (< 8GB to avoid the CHS limit) to see if that helps, but thought I may as well ask here if this is a known limitation or if I'm doing something obviously silly here to someone who is a bit more experienced.

Whatever the problem is, it's not that. iPXE supports LBA via the usual INT13 extensions.

Michael