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Re: serial console over usb?

From: Uwe Dippel
Subject: Re: serial console over usb?
Date: Fri, 18 Apr 2008 19:45:23 +0800

On Fri, Apr 18, 2008 at 5:47 PM, Hanno Böck <address@hidden> wrote:

>  As modern computers don't have serial ports any more (and today I had to
>  notice that this is also true for servers), I was looking if it's possible to
>  have a serial console over usb.

Yes. No. No.

Yes, it is true, PCs these days have no more serial ports.
No, you are wrong. Servers do have serial ports. At least, we would
not buy any without. And until now I never saw one without.
No, serial console over USB is out. You can have it, when the system
is up and running. But for us with real system admin tasks, there is
no need when the system is up. What we want, is - as you wrote - grub
on serial console. Worse: we want BIOS on serial console!
Those adapters all do something else: They load a converter in
software after the operating system kernel has been loaded. grub, as
you are aware, is much earlier: it loads the kernel of the operating
In a nutshell: No way for a real serial console over USB.

And do me a personal favour: Take the crap server that has no remote
admin implemented in hardware and hit the seller over his head. Hit
hard. Mankind is better off without his boxen.


>  This seems to be the case with usb-serial-converters. I found no information
>  if that's also possible on the bootmanager-level with grub. Can someone give
>  me hints? (also if other bootmanagers, grub2, lilo, etc. are capable of doing
>  it)
>  --
>  Hanno Böck              Blog:           http://www.hboeck.de/
>  GPG: 3DBD3B20           Jabber/Mail:    address@hidden
> _______________________________________________
>  Bug-grub mailing list
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