Xen users - Sep 2007 - capture xen & dom0 serial output in HP ILO''s virtual serial port

Hey,

Does anyone know how I can capture both Xen & Dom0 console output on a
"Virtual Serial Port" from HP''s iLO (Integrated Lights-Out)
interface?
Plain linux is no problem, but combined with Xen it seems to go
haywire :-)

So far I''ve been combining options and the only thing that actually
gave me some output (albeit only the Xen console, not dom0) was this:

menu.lst:
root (hd0,0)
kernel /xen.gz com1=115200 sync_console
module /vmlinuz-xen root=/dev/cciss/c0d0p3 splash=0
console=ttyS0,115200 console=tty
module /initrd-xen

The dump I got told me:
(XEN) Xen is auto-sensing VGA console.
(XEN) *** Serial input -> DOM0 (type ''CTRL-a'' three times
to switch
input to Xen).
(XEN) *** Serial input -> Xen (type ''CTRL-a'' three times to
switch
input to DOM0).
(XEN) *** Serial input -> DOM0 (type ''CTRL-a'' three times
to switch
input to Xen).
(XEN) *** Serial input -> Xen (type ''CTRL-a'' three times to
switch
input to DOM0).

But as far as I''ve tried & experimented with stomping
''CTRL-a'',
whatever you do, you cannot grab the rest of the bootprocess from the
dom0.

Thanks in advance!

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