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From: Sean Bruno <seanbru@yahoo-inc.com>
To: "freebsd-xen@freebsd.org" <freebsd-xen@freebsd.org>
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Date: Tue, 26 Jul 2011 14:48:38 -0700
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Subject: FreeBSD 8, PV i386 VNC fails?
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Probably not doing it right.  When I switched from pure HVM to PV on the
i386 VMs in the cluster, VNC stopped working all together.  Did I do it
wrong?

I've tried the following:

vnc = 1
vncdisplay = 1
vncunused = 1
vncpasswd=''

and

vfb = [ "type = vnc, vncdisplay = 1, vncunused = 1, vncpasswd=''" ]

The vfb = [] syntax seems to hang the VM on frame buffer initialization
and it will not post.

The old style syntax seems to allow the host to boot, but there is no
VNC listening on the host.

Understand that the old style syntax works just fine in HVM mode.

Sean