On 06/20/17 19:36, Rod Smith wrote: > On 06/20/2017 12:47 PM, Laszlo Ersek wrote:
>> For UEFI boot, only the ElTorito image matters. > > MOSTLY, yes; however, some EFI implementations include ISO-9660 drivers. > This is definitely true of the EFI used by VirtualBox. I think I've seen > this feature on one or two UEFI-based PCs, too, but I don't recall the > details and I can't say I'm 100% certain of this. There are also > ISO-9660 drivers floating around that can be loaded from a FAT > partition. In either of these cases, the files on the ISO-9660 > filesystem can be used to boot from an optical disc, even if it lacks > the El Torito image. Good point! > This is admittedly a corner case at best; but IMHO it's worth keeping in > mind, since non-matching El Torito and ISO-9660 files could lead to user > (or developer) confusion. That has actually tripped up at least one OVMF user in the past; they had some inconsistency between the two locations. The problem was originally reported in <https://github.com/tianocore/edk2/issues/93> ("OvmfPkg: UEFI Shell only sees EFI\BOOT\BOOTX64.EFI"), but now that the edk2 github issue tracker is gone, the ticket cannot be viewed even in read-only mode. :/ Thanks! Laszlo _______________________________________________ edk2-devel mailing list [email protected] https://lists.01.org/mailman/listinfo/edk2-devel
