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[bug #42026] error serial port `portf0e0' isn't found

From: Dave Chiluk
Subject: [bug #42026] error serial port `portf0e0' isn't found
Date: Wed, 02 Apr 2014 05:25:30 +0000
User-agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/33.0.1750.152 Safari/537.36


                 Summary: error serial port `portf0e0' isn't found
                 Project: GNU GRUB
            Submitted by: chiluk
            Submitted on: Wed 02 Apr 2014 05:25:29 AM GMT
                Category: Terminal
                Severity: Major
                Priority: 5 - Normal
              Item Group: Software Error
                  Status: None
                 Privacy: Public
             Assigned to: None
         Originator Name: chiluk
        Originator Email: chiluk
             Open/Closed: Open
         Discussion Lock: Any
                 Release: 2.02~beta1
         Reproducibility: Every Time
         Planned Release: None



I was attempting to configure my AMT enabled intel nuc, and grub cannot find
the Serial over lan port.

Using 2.02~beta2-8 as currently found in Ubuntu Trusty, grub2 fails to find
Intel AMT serial console.

grub> serial --port=0xf0e0 --speed 115200
error: serial port `portf0e0' isn't found

I checked and 9afe2053c9b was the only difference in grub-core/term/serial.c
compared to the version available for trusty.

It might matter, but this machine is booting via uefi.

Also this might also be useful information.
$ grep ttyS4 /var/log/kern.log 
 Mar 31 21:53:37 nuc1 kernel: [    0.691087] 0000:00:16.3: ttyS4 at I/O 0xf0e0
(irq = 19, base_baud = 115200) is a 16550A

SOL works fine once I get passed grub.


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