On 10/15/2015 03:05 PM, Mike - st257 wrote:
Would anyone be so kind as to share their experience?
What has worked for your BMC/SoL configurations?
I have a C7 server with a physical RS-232 console, but the config should
be similar. I did not have to generate a systemd service for this;
systemd saw the console line and automatically started the getty without
me having to generate a .service file (as far as I recall all I had to
do was generate the proper /etc/default/grub, and then run
'grub2-mkconfig -o /boot/grub2/grub.cfg' and it Just Worked).
Now, I have the system set for console on both the VGA and on ttyS0, and
I am not using flow-control. Here's what I have that works (again with
a physical ttyS0):
[root@backup670 ~]# cat /etc/default/grub
GRUB_TIMEOUT=5
GRUB_DEFAULT=saved
GRUB_DISABLE_SUBMENU=true
GRUB_SERIAL_COMMAND="serial --unit=0 --speed=9600 --word=8 --parity=no
--stop=1"
GRUB_TERMINAL_OUTPUT="console serial"
GRUB_CMDLINE_LINUX="rd.md.uuid=long-uuid-string crashkernel=auto
rd.lvm.lv=vg/swap rd.lvm.lv=vg/root rd.md.uuid=another-long-uuid
console=tty0 console=ttyS0,9600 rd_NO_PLYMOUTH"
GRUB_DISABLE_RECOVERY="true"
Also see: http://0pointer.de/blog/projects/serial-console.html
There should be no need to modify any .service files; simply editing
/etc/default/grub and regenerating grub2's config should be enough; it
was in my case (I verified by looking through root's .bash_history and
finding the lines around editing /etc/default/grub and not finding any
edits of any .service files....)
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