Date: Mon, 21 Aug 2017 10:56:33 -0700 From: "James E. Pace" <james@pacehouse.com> To: freebsd-xen@freebsd.org Subject: Fwd: FreeBSD 11.1 xen trying to create linux domU instance Message-ID: <CAN1es4LUf0R3eu7fCTvQTwWqhDaoc-AqNRsq2OPJxLeJLNR5ww@mail.gmail.com> In-Reply-To: <CAN1es4Lmicq9HQSacA1obfPe9AXjA0B5JAn36OwSCvt3H33SaA@mail.gmail.com> References: <CAN1es4Lmicq9HQSacA1obfPe9AXjA0B5JAn36OwSCvt3H33SaA@mail.gmail.com>
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Hi,
I have a couple questions about running xen with FreeBSD 11.1 (amd64) as
Dom0. I am pretty new to this whole concept, so it is very likely I am not
understanding something.
First, each time I boot the (physical) system, I have to tell the FreeBSD
boot loader to turn on xen. (That is, hit 6 to set options, then 7 to
enable xen, then 1 to return to the main menu, then 1 to boot). Is there a
way to make this the default behavior?
Second, I want to create a Linux domU instance. I have been successful in
getting a FreeBSD 11.1 domU running, but changing that config file to use a
Linux CD doesn't boot (or crashes on boot?). I've tried a couple linux
distributions with similar results.
Here's my xen config file:
builder = "hvm"
name = "xen-ubuntu"
memory = 1024
vcpus = 1
vif = [ 'bridge=bridge0' ]
disk = [
'/dev/zvol/pool/xen-ubuntu,,hda,rw',
'/pool/Downloads/ubuntu-15.10-desktop-amd64.iso,raw,hdc:cdrom,r'
]
vnc = 1
vnclisten = "0.0.0.0"
serial = "pty"
I created the backing filesystem with:
zfs create -V20G -o volmode=dev pool/xen-ubuntu
"xl create foo.cfg" returns fine, and "xl list" shows the instance, but the
running instance (via vncviewer) eventually spits out:
4.130084] vbd vbd-5632: 19 xenbus_dev_probe on device/vbd/5632
4.130956] vbd vbd-5632: failed to write error node for device
device/vbd/5632 (19 xenbus_dev_probe on device/vbd/5632)
I suspect the linux kernel isn't booting because it can't figure out
something about the zfs volume. But I'm not sure, and I don't know how to
work around it.
Third, on my DomU FreeBSD guest, I'm trying to set up X / Gnome3. The
mouse pointer and the little dot are far apart; that is, the mouse isn't
tracking my movements well. I found several suggestions to add
"usbdevice=tablet" to the config file, but that caused it to not respond to
my mouse at all. Suggestions?
Thanks for help, tips, or pointers to info!
James
--
James E. Pace
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