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Subject: [Bug 193672] FreeBSD UEFI boot panics with VirtualBox UEFI loader
Date: Thu, 19 Feb 2015 21:13:16 +0000
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=193672

Jung-uk Kim <jkim@FreeBSD.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |jkim@FreeBSD.org

--- Comment #7 from Jung-uk Kim <jkim@FreeBSD.org> ---
VirtualBox supports both UGA (Universal Graphic Adapter) and GOP (Graphics
Output Protocol) but FreeBSD loader uses GOP.  Default GOP mode seems to be 2
(1024x768) and it panics kernel if the system memory is small.  As a stopgap,
you may lower the resolution with VBoxManage, i.e.,

VBoxManage setextradata "VM name" VBoxInternal2/EfiGopMode N

where "VM name" is the name of your VM and N is from 0 to 5.

For example,

VBoxManage setextradata FreeBSD VBoxInternal2/EfiGopMode 1

will lower video mode to 800x600 for your "FreeBSD" VM.  Please see the manual
for more information.

https://www.virtualbox.org/manual/ch03.html

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