Re: grub with serial line configuration using PCI serial adapter

[Songatov Rishat]

Hi thank you for helping me!

Unfortunately I haven't got serial access to the grub after adding this 
piece of configuration:

insmod pci
insmod serial
insmod terminal
insmod terminfo

###serial --speed=115200 --port=a880 --word=8 --parity=no --stop=1
serial --speed=115200 --unit=0 --word=8 --parity=no --stop=1

terminal_input serial
terminal_output serial

May be I need some sleep time after inserting pci.mod. How I can do this?

--

Best regards

Rishat


On 17.10.2016 20:34, Andrei Borzenkov wrote:
> 17.10.2016 19:41, rishat пишет:
> > On 2016-10-17 19:16, Andrei Borzenkov wrote:
> > > 17.10.2016 16:16, rishat пишет:
> > > > setserial -g /dev/ttyS[0-4]
> > > > /dev/ttyS0, UART: 16550A, Port: 0xa880, IRQ: 21
> > > ...
> > > > When I tried to manually type a "serial --speed=115200 --unit=0 --word=8
> > > > --parity=no --stop=1" in the grub command line it complains that COM1
> > > > port don't exist. I have played with unit and port attributes but
> > > > without any luck.
> > > Does "serial --port=a880 ..." work? If not, what exactly happens?
> > >
> > > Note that you may need to load at least PCI bus driver (insmod pci) for
> > > this to work.
> > I've tried to use it that way but it didn't find com port again.
> > I'll try to do insmod pci and write to you tomorrow.
> Yes, please let us know, but on firther consideration it probably won't
> help either. Card likely needs to be initialized first, and this
> requires driver that knows how to do it. serial driver in GRUB presumes
> hardware is in working state already. Someone would need to implement it.
>
> > By the way is it possible to share documentation about some useful
> > modules in the grub? I havn't found any information using google.
> >
> > > _______________________________________________
> > > Help-grub mailing list
> > > address@hidden
> > > https://lists.gnu.org/mailman/listinfo/help-grub