[Xen-users] Serial Console oddity

["Gino LV. Ledesma" <gledesma@xxxxxxxxx>]

Hi, all

Has anyone encountered a situation where the boot output stops after
switchroot is made? What happens in my instal is that xen's serial
console output stops at the moment the WARNING message about tls is
made, and the very last message on screen/serial console is
"Continuing...." The computer proceeds to boot, though nothing is
shown on the console. So I don't get to access the xen host over
serial console.

Relevant settings:

grub.conf:
serial --unit=0 --speed=115200
terminal --timeout=5 serial console

title Xen 2.0.7 / Linux Kernel 2.6.11.12-xen0
    root (hd0,0)
    kernel /xen.gz dom0_mem=262144 com1=115200,8n1
    module /vmlinuz-2.6.11.12-xen0 ro root=/dev/VolGroup01/LogVolRoot
nousb console=xencons0 console=tty0
    module /initrd-2.6.11.12-xen0.img

Dell SC1425 "Console Redirection After Boot..." -- enabled/disabled
doesn't matter

8250 Serial Driver compiled in.

When adding console=ttyS0, the message indicating press CTRL-a three
times appears and boot stops there. Pressing CTRl-a 3x does nothing.

If it helps, this message appears during the kernel boot:

WARNING: failed to register Xen virtual console driver as 'ttyS0'

Any advice?

Thanks!

gino ledesma

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