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Re: [Xen-users] Which rev of Xen should I compile?
- To: xen-users@xxxxxxxxxxxxx
- From: ShadesOfGrey <shades_of_grey@xxxxxxxxxxxxx>
- Date: Sun, 02 Dec 2012 08:22:48 -0500
- Delivery-date: Sun, 02 Dec 2012 13:24:27 +0000
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- List-id: Xen user discussion <xen-users.lists.xen.org>
On 12/01/2012 07:22 PM, ShadesOfGrey
wrote:
After some delays, incl. hurricane
Sandy, hardware issues (problem with a PSU), and a
broken filling;
I finally built the hardware for the virtualization rig I sought
advice for here in September.
The software on the other hand is giving me
fits. After getting the
Dom0 and Xen up and running, I
fubared my install of 4.3-unstable rev. 29163. Instead of
trying to figure out what I broke, I've
decided to do a full re-install. This
time however, I want to start with something a little more
stable. I could go
with rev. 25777 as Casey DeLorme recommended
in his tutorial.
But with the
number of revisions since, there are
patches that would probably be beneficial.
Perhaps, I could start with 25824
(or 25825) as it is
the latest release candidate? Unless, that is, there are other
revisions that Xen list members believe offer critical
improvements?
I'm also looking for a template xl.cfg file for a 'working' PVHVM
Linux (preferably Debian) DomU. Before I borked Xen, I had only
just gotten a Debian based DomU created without xl throwing
errors. Unfortunately, it remained in a blocked state and I
wasn't sure what was going on or even what to expect. In a nut
shell, the cfg file I cobbled together came from various disparate
sources on the Web. I had/have no idea what was suppose to happen
once the VM was/is created. Did I initially need to connect to
the VM via VNC/SPICE in order to complete the OS install? Was I
suppose to boot into a paravirtualized graphics adapter à la
VirtualBox? Or did I need to passthrough the integrated GPU
inorder to actually see anything on my systems monitor at all? I
just didn't know. How, exactly, is a PVHVM Linux DomU actually
supposed to behave?
FYI, I haven't gotten the chance to try setting up a Windows HVM
yet. I wanted to get my primary OS up and running first.
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Oops. I 'forgot' 4.2.0 had been released
and overlooked that rev. 25826 on the mercurial repository had
branched. There are enough references to 4.2.0 that I can't see how
I managed to do that. I suppose that's what happens when you step
away for two months. I was so wrapped up in obtaining, building and
troubleshooting the hardware, I let my attention to software side of
things slip. When I re-install, I'll see about tracking Xen 4.2.0
from Debian unstable/experimental.
I also want to clarify my confusion concerning the Linux PVHM I
created. At the time of my original post, I was pretty frazzled. As
a result, I left out a key piece of information. I was thinking I
could/should use an emulated VGA device for two reasons. First, to
insure the VM reaches a running state, before attempting to
passthrough my CPU's IGP. Second, I could see situations where I
might want/need to run two PVHVMs using the same physical graphics
adapter (though perhaps nested virtualization would be a better
solution?). If I understand correctly, the only way this could be
achieved is if both were using an emulated graphics adapter.
What I wasn't sure of is if I had configured the emulated device
correctly, or how I was supposed to connect to it. I did find out
how to use xl to connect to a PV or serial console after my OP
though... Fat lot of good it did me after screwing up Xen. Anyway,
if someone could enlighten me on how emulated VGA works, I'd
appreciate it.
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