I also have the same problem.
asus M5A97 (asus-efi enabled) ssd disk HDisk interal 4 x cardreader connected to the internal usb-port
grub runs rescue with error: invalid sector size 65535
I also have the same problem.
asus M5A97 (asus-efi enabled)
ssd disk
HDisk
interal 4 x cardreader connected to the internal usb-port
grub runs rescue with error: invalid sector size 65535