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Re: qemu-xen is unavailable


  • To: Christian Kujau <lists@xxxxxxxxxxxxxxx>
  • From: Anthony PERARD <anthony.perard@xxxxxxxxxx>
  • Date: Wed, 5 Jan 2022 16:27:56 +0000
  • Authentication-results: esa4.hc3370-68.iphmx.com; dkim=none (message not signed) header.i=none
  • Cc: xen-users <xen-users@xxxxxxxxxxxxxxxxxxxx>, <xen-devel@xxxxxxxxxxxxxxxxxxxx>, George Dunlap <dunlapg@xxxxxxxxx>
  • Delivery-date: Wed, 05 Jan 2022 16:28:17 +0000
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  • List-id: Xen developer discussion <xen-devel.lists.xenproject.org>

CC xen-devel

On Tue, Jan 04, 2022 at 11:52:21AM +0000, George Dunlap wrote:
> > On Sun, 19 Dec 2021, Christian Kujau wrote:
> > > # xl create -f /etc/xen/debian.cfg
> > > Parsing config from /etc/xen/debian.cfg
> > > libxl: info: libxl_create.c:121:libxl__domain_build_info_setdefault:
> > qemu-xen is unavailable, using qemu-xen-traditional instead: No such file
> > or directory

Looking at the original email, the domain config file has type="pvh", so
I don't think qemu is actually needed. And the domain is starting fine,
so this message isn't really needed and would be a bug I guess.

I think it comes from libxl trying to figure out which QEMU to use even
if it isn't going to be needed. And since there's no qemu to be found,
the message is printed, even when qemu isn't needed.

I guess you have this message because you didn't install a qemu package
(or qemu-xen), but you don't need the package as you are only starting a
PVH guest.

The bug here is that libxl shouldn't print this message for PVH guest
because it's confusing.

Thanks,

-- 
Anthony PERARD



 


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