I recently installed Fedora 19 on a new computer, which used the UEFI
BIOS. Sometime later, (eg 6 months or so), I installed Virtualbox to be
hosted by Fedora. Then I purchased window 7 and installed Windows 7 as
a guest OS in Vbox. The windows 7 guest consistently failed to launch,
so after a couple of days of exploring various combinations of hardware
and software settings and researching Google, I found the solution.
Vbox needs a legacy BIOS to run guest OS(s) in X86 computer that have
"Security Boot" enabled, so I disable "Security Boot" in the UEFI BIOS;
after which everything ran normally. Here more:
http://en.wikipedia.org/wiki/Unified_Extensible_Firmware_Interface#Secure_boot_2
http://technet.microsoft.com/en-us/library/dn481258.aspx
Resent versions of Fedora and Redhat Linux run fine with EUIF enabled,
but Vbox VMs hosted in Fedora computers using the new UEFI BIOS need
"Security Boot" disabled.
http://www.howtogeek.com/116569/htg-explains-how-windows-8s-secure-boot-feature-works-what-it-means-for-linux/
http://mjg59.dreamwidth.org/12368.html
Regards,
LelandJ
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