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xen-devel
RE: [Xen-devel] xen/dom0 console problems
That's the first thing I tried and IIRC I was getting garbage
when I typed the ctrl-a's.
Now, trying again, it seems to work. Perhaps I had some
transient serial port problem?!?! Or maybe a typo in
the com1= argument?
Anyway, all looks good now. Sorry for the interruption :-}
> -----Original Message-----
> From: Alex Ho [mailto:alex.ho@xxxxxxxxxxxx]
> Sent: Thursday, March 25, 2004 3:14 PM
> To: MAGENHEIMER,DAN (HP-FtCollins,ex1)
> Cc: xen-devel@xxxxxxxxxxxxxxxxxxxxx
> Subject: Re: [Xen-devel] xen/dom0 console problems
>
>
>
> i am using the following (with grub):
>
> kernel (nd)/usr/groups/srgboot/revs/xen.gz dom0_ip=DOM0IP
> dom0_mem=65536 com1=115200,8n1 console=com1 pdb=com1H
> module (nd)/usr/groups/srgboot/revs/xenolinux.gz
> ip=DOM0IP:NFSSERVERIP:GW:255.255.240.0:hostname:eth0:off
> root=nfs nfsroot=/roots/root0
>
> all xen & dom0 boot output appear on com1, i can use either
> telnet or xencons to retrieve the output.
> i can also type 'D' to communicate with xen and force it
> into pdb. my test machine is in another room
> so i haven't checked to see if anything appears on the console.
>
> .a
>
>
> On Thu, 25 Mar 2004 15:56:50 -0500
> "MAGENHEIMER,DAN (HP-FtCollins,ex1)" <dan.magenheimer@xxxxxx> wrote:
>
> > I'm trying out some of the (not-so-new) console stuff
> > on the unstable tree and having a heckuva time trying
> > to get what I want:
> >
> > 1a) All Xen boot output and all dom0 boot output on
> > the vga screen, or
> > 1a) All Xen boot output and all dom0 boot output on com1, or
> > 1b) All Xen boot output on vga and all dom0 boot output
> > on com1
> > 2) The ability to use the Xen "handlers" (e.g. to press
> > "D" to get to the debugger)
> > 3) pdb communication on com1 (or com2 for case 1a or 1b)
> >
> > I was using "ser_baud=9600nr8 pdb=com1" on the Xen
> > command line and "console=xencons0 console=ttyS0" for
> > xenolinux before and all this worked (and continues to
> > work, except for the warning that ser_baud is deprecated);
> > output going both to vga and com1 and I was able to
> > use ctrl-A-ctrl-A-ctrl-A-D over com1 to get to the
> > debugger. I was going to move pdb to com2 and decided
> > to switch over to the newer (non-deprecated) syntax first,
> > but none of the obvious
> > command line options seems to get me where I was before!
> > I didn't write down all the different options I tried,
> > but if I was able to get Xen/dom0 boot output, I wasn't
> > able to get to any Xen handlers; and in many cases
> > I wasn't able to get dom0 boot output (or in some cases
> > even xen boot output) even though I was using what
> > I expected to be the obvious right way (e.g. console=com1
> > console=vga or no com= option for Xen, console=xencons0
> > console=ttyS0 (or tty0) for xenolinux).
> >
> > I haven't yet gotten to any of the new console stuff for
> > non-dom0 domains... all of this is just with Xen and
> > domain0.
> >
> > Thanks for any suggestions/help!
> > Dan
> >
> >
> > -------------------------------------------------------
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>
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