[Libguestfs] [PATCH] appliance: Disable EDD (edd=off) (RHBZ#1404287).

[Pino Toscano]

On Sunday, 18 December 2016 19:32:34 CET Richard W.M. Jones wrote:
> EDD (https://en.wikipedia.org/wiki/Enhanced_Disk_Drive) is a BIOS INT 13h
> subcall for communicating the extended size of the boot disk over 8GB
> to the OS.  Since libguestfs doesn't use a boot disk, and the
> appliance disk is limited to 4GB, and we use virtio-scsi, this is all
> useless.
> 
> EDD is also broken currently on RHEL 7.3, see:
> https://bugzilla.redhat.com/show_bug.cgi?id=1404287
> 
> Also the EDD probing takes significant extra time (about 80ms on my
> laptop), and using edd=off reduces this time although doesn't entirely
> eliminate it.
> ---

LGTM.

Thanks,
-- 
Pino Toscano
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