Bug#960390: x86_64: No serial port output
On Sat, May 23, 2020 at 10:34:36AM +0900, Punit Agrawal wrote:
>On Sat, May 23, 2020 at 1:54 AM Steve McIntyre <steve@einval.com> wrote:
>>
>> On Sat, May 23, 2020 at 01:15:37AM +0900, Punit Agrawal wrote:
>
>[...]
>
>> >To avoid needing any workarounds such as those discussed in earlier
>> >replies, I looked at enabling the installer images to output on the
>> >serial console by default. The attached simple change to the grub
>> >configuration gives output on serial as well as connected monitor.
>> >
>> >The next issue that needs fixing is to update the kernel command line
>> >to launch the installer on the serial console.
>>
>> I think few people have been bothered by this in the past - all the
>> server machines I've used for years have had options for redirecting a
>> VGA console to the serial port. Do you have one that doesn't?
>
>Actually, I was installing in "-nographic" VM rather than a server.
>There are workarounds that allow me to continue earlier in the thread
>(See #67, #68) but I was hoping to improve things so that it just
>works.
>
>I was just surprised that it isn't possible to use the installer
>without a VGA monitor (or a redirect on hardware that supports it) -
>especially coming from arm64. There are a few other use cases that
>will benefit from the serial support as well.
>
>Considering that it looks to be a configuration issue - do you think
>it's worth enabling? Are there any downsides that I am missing?
Possibly? I spent half an hour looking at things last week, but I
don't have the time to look at this properly for a while myself. Other
priorities...
>From your patch, I'm not sure:
a) you're unconditionally replacing colour choices
b) you're setting up terminal_output only, what about terminal_input?
(as mentioned in the info pages)
c) do you need to have a "serial" command to enable serial ports
(again, from the info page)?
d) is there any downside on machines without serial?
--
Steve McIntyre, Cambridge, UK. steve@einval.com
"We're the technical experts. We were hired so that management could
ignore our recommendations and tell us how to do our jobs." -- Mike Andrews
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