Grub and usb serial support

How to access the grub menu using a usb serial converter?

I know it's possible to have grub menu in serial console, putting these lines in grub.conf:

serial --unit=0 --speed=9600 --word=8 --parity=no --stop=1 terminal serial 

But with usb serial converter? In linux it is /dev/ttyUSB0 and I can use it to see boot messages.


I guess serial output works only if there is something at the default address of the serial port. The kernel does not know what USB is in the moment when its output begins. A USB to serial converter does this: It looks like a serial port to the other device but like USB to the system itself. You need it the other way round: It must look like a serial port to the local system, not matter what it looks like to the other device.

Category: linux Time: 2013-06-18 Views: 7
Tags: linux grub usb

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