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Subject: [Bug 195819] New: efifb driver does not work in hypervisor when try
 to install from a FreeBSD10.1 uefi iso
Date: Tue, 09 Dec 2014 07:35:25 +0000
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X-Bugzilla-Component: kern
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X-Bugzilla-Who: zhangxia3@hotmail.com
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=195819

            Bug ID: 195819
           Summary: efifb driver does not work in hypervisor when try to
                    install from a FreeBSD10.1 uefi iso
           Product: Base System
           Version: 10.1-STABLE
          Hardware: amd64
                OS: Any
            Status: New
          Severity: Affects Some People
          Priority: ---
         Component: kern
          Assignee: freebsd-bugs@FreeBSD.org
          Reporter: zhangxia3@hotmail.com

Created attachment 150384
  --> https://bugs.freebsd.org/bugzilla/attachment.cgi?id=150384&action=edit
efifb driver issue in hyperv 2012R2

Test Environment: 
      HyperV 2012R2 or VMWare 10.0 workstation
installation ISO:
ftp://ftp.freebsd.org/pub/FreeBSD/releases/amd64/amd64/ISO-IMAGES/10.1/FreeBSD-10.1-RELEASE-amd64-uefi-dvd1.iso

>From FreeBSD10.1, it claims that it would support UEFI.
In HyperV 2012R2, I tried to Create a Generation 2 VM (secure boot disabled),
and then install from the above IOS. In the boot up, it would hang on the
following:
    VT: running with driver "efifb"

After code check, there is something wrong with efifb driver in FreeBSD 10.1. I
tried same steps in VMWare 10.0, it has same issue.

Note:
If you try to repro this issue in VMWare 10.0, you should follow this link to
enable UEFI:
https://community.landesk.com/support/docs/DOC-27736

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