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Some platforms (observed with an AMI BIOS on an Apollo Lake system) will spuriously fail the call to ConnectController() when the UEFI network stack is disabled. This appears to be a BIOS bug that also affects attempts to connect any non-iPXE driver to the NIC controller handle via the UEFI shell "connect" utility. Work around this BIOS bug by falling back to calling our efi_driver_start() directly if the call to ConnectController() fails. This bypasses any BIOS policy in terms of deciding which driver to connect but still cooperates with the UEFI driver model in terms of handle ownership, since the use of EFI_OPEN_PROTOCOL_BY_DRIVER ensures that the BIOS is aware of our ownership claim. Signed-off-by: Michael Brown <mcb30@ipxe.org>
iPXE README File Quick start guide: cd src make For any more detailed instructions, see http://ipxe.org