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[Xen-devel] Re: [PATCH] Fix bootloader handling when empty string is bei

To: Ian Campbell <Ian.Campbell@xxxxxxxxxxxxx>
Subject: [Xen-devel] Re: [PATCH] Fix bootloader handling when empty string is being output
From: Michal Novotny <minovotn@xxxxxxxxxx>
Date: Tue, 31 Aug 2010 12:18:36 +0200
Cc: Paolo Bonzini <pbonzini@xxxxxxxxxx>, "'xen-devel@xxxxxxxxxxxxxxxxxxx'" <xen-devel@xxxxxxxxxxxxxxxxxxx>
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On 08/31/2010 12:10 PM, Ian Campbell wrote:
On Tue, 2010-08-31 at 11:00 +0100, Michal Novotny wrote:
I don't know how it's
working with upstream version since I found out that syntax like `xm
create -c PVguest` with default settings (pyGrub bootloader) doesn't
show the pyGrub at all so I don't know what's wrong with my setup. I'm
using 2.6.32.15-xen kernel/hypervisor version with latest unstable
user-space tools.

Any hint how this should be working Ian?
It should be working as you expect, e.g. "xm create -c xxx" should show
you the pygrub output, unless you have used something like "--entry=x"
or "-q" which disable interactive mode in your bootloader_args.

I'm afraid I don't know what is broken, I'm reasonably sure it was
working for me when I developed libxl_bootloader.c since I was comparing
the two.

Ian.

No Ian, it's not working. The config file is having:
...
bootloader = "/usr/bin/pygrub"
...
So it should show the pyGrub ncurses screen, right? But it doesn't show anything on version cloned from git yesterday. Any ideas what may be wrong? Maybe a configuration file should be somewhat different, I don't know but this is working fine to get the data from image - it just doesn't show the ncurses pyGrub screen. Isn't it possible this is somehow connected to the PTY patch ? How should the PTY c/s 13540 ? This is the rewrite that was there and honestly I don't remember whether I tried to run `xm create -c PVguest` on upstream Xen-4.1 ever so I don't know. Isn't it hypervisor/kernel related that it requires some data that are not coming from there?

Thanks,
Michal

--
Michal Novotny<minovotn@xxxxxxxxxx>, RHCE
Virtualization Team (xen userspace), Red Hat


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