[Xen-users] dom0 no longer showing serial console output

["Carb, Brian A" <Brian.Carb@xxxxxxxxxx>]

Running Xen unstable on SLES10 x64. Serial output was working correctly in changeset 15837 (the xen boot output was directed to both the standard vga console and the serial console).  I have recently upgraded to changeset 16112 and now I do not get any output on the serial console.

 

In my menu.lst I have:

    root (hd0,1)
    kernel /boot/xen.gz com1=115200,8n1 apic_verbosity=debug
    module /boot/vmlinuz-xen root=/dev/sda2 vga=0x314 resume=/dev/sda1 splash=verbose showopts debug=y
    module /boot/initrd-xen

 

I have tried adding "console=ttyS0" but this doesn't seem to produce any output either.  The command

  echo "test" >/dev/ttyS0

errors with

  -bash: /dev/ttyS0: No such device or address

but /dev/ttyS0 does exist.

btw, serial output does show up when I boot the SLES kernel. Its entry is:

 

    root (hd0,1)
    kernel /boot/vmlinuz root=/dev/sda2 vga=0x314  resume=/dev/sda1 splash=verbose showopts console=ttyS0,115200n8 console=tty0 debug
    initrd /boot/initrd

I suspect the xen serial console code has changed recently. Can anyone point me to some settings that will work. Thanks

brian carb
unisys corporation - malvern, pa 

 

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