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Re: [Xen-users] Fw: booting

On Thu, 6 Feb 2014 14:22:38 +0000
Ian Campbell <Ian.Campbell@xxxxxxxxxx> wrote:

> On Thu, 2014-02-06 at 21:55 +0800, IAN DELANEY wrote:
> > On Thu, 6 Feb 2014 11:42:26 +0000
> > Ian Campbell <Ian.Campbell@xxxxxxxxxx> wrote:
> > > When you say "monitor" do you mean the VGA/HDMI output? I've never
> > > used that -- all my experience is with the serial console for
> > > which "console=ttyS0,115200" on the kernel command line is
> > > sufficient IME.
> > > 
> > 
> > This makes it awkward.  Steev the gentoo arm dev himself is urging
> > me to acquire a usb adaptor so as to get a serial console.  I've
> > tried twice now with a local supplier and Perth/Australia it
> > appears just doesn't have 'em!!!!!  Can't even source a supplier,
> > any supplier. They're around $10 U.S. ordered online and would then
> > take a few weeks for delivery.  By monitor, I mean the screen of
> > the AOC or Samsung SyncMaster226BWW, plugged into the video input
> > in the tower (the case) housing my amd64 motherboard, which is I
> > believe VGA/HDMI output. Welcome to Perth W.A., aka
> > endsville! :) /me would really like a serial console!!!
> FWIW it takes about the same cost/time to get one here in the UK. I
> ordered one 3 weeks ago and it still isn't here, I'm not expecting it
> for another few weeks (I probably should have paid more attention to
> the delivery time, I'm sure I could have done better)
> > > I'm not sure of the GFX stuff is supported by mainstream kernels
> > > or not.
> > > 
> > 
> > strooth
> I forgot to say that Xen itself doesn't have any graphics stuff for
> this platform at all.

double strooth

> I think you are pretty much stuffed without a serial console... How
> are you interacting with u-boot? I guess by writing boot scripts to an
> sdcard using another system?

time to get that serial console inc. delivery time.
time to return to some routine python bug fixing in between it seems,

> About the only halfway sensible suggestion I have is to investigate
> Linux's network console stuff, that won't get you u-boot or Xen
> output, but dom0 or native Linux should be able to spit something out.
> linux/Documentation/networking/netconsole.txt explains it. I'd
> recommend getting it working on a PC or something where you can see
> the real console too first to make sure you have the bits fitted
> together.

and peruse linux/Documentation/networking/netconsole.txt

> My experience of that is limited to what is recorded in
> http://www.hellion.org.uk/blog/posts/debugging-initramfs-over-netconsole/
> (and I barely remember doing it).
> >   You text following here I will pursue tomorrow.
> Ack.
> Ian.

kind regards

Ian Delaney

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