[SeaBIOS] Seabios unable to boot Fedora-based instances

[Maciej Józefczyk]

Hello,

Environment: Seabios master dd9bba5b9c1d5175a2757f3fdc9d554b4c8eea3a
Qemu: 1:2.5+dfsg-5ubuntu10.14
OS: Ubuntu 16.04

We found that newest Seabios (dd9bba5b9c1d5175a2757f3fdc9d554b4c8eea3a)
is not working with latest Fedora 26 - image taken from:
https://download.fedoraproject.org/pub/fedora/linux/releases/26/CloudImages/...

Each time it hangs on "Probing EDD (edd=off to disable)... OK".

We discovered that rollback to version 4902b8a7 solves the problem. It
seems that something is wrong with 4902b8a7. After fetch lastest master
and rollback of 4902b8a7 - Fedora is able to boot.

Ubuntu is booting all the time without problem.

Could you take a look on this?

Best regards
Maciej