[Gllug] Serial debugging

[Adrian McMenamin]

I want to debug a linux kernel on a serial terminal but one of the
machines I want to use does not have a serial port so it seems the
trusty null modem cable won't help (it's a laptop too, so I cannot
really just plug a cheap PCI card in)

Alternatives seem to be:

USB -> serial (does this work, searching suggests I need to configure
the USB port in a special way but it's not clear)

Firewire <-> firewire (there seems to be kernel support for this but is
it practical, anyone know)

Something else? Anyone know?

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