IPMI serial console

Daniel O'Connor doconnor at gsoft.com.au
Fri Feb 22 03:39:29 UTC 2013


On 22/02/2013, at 9:30, Konstantin Belousov <kostikbel at gmail.com> wrote:
> On Fri, Feb 22, 2013 at 09:18:51AM +1030, Daniel O'Connor wrote:
>> 
>> On 22/02/2013, at 9:15, Navdeep Parhar <nparhar at gmail.com> wrote:
>>>> uart0: <16550 or compatible> port 0x3f8-0x3ff irq 4 on acpi0
>>>> uart1: <16550 or compatible> port 0x2f8-0x2ff irq 3 on acpi0
>>>> uart2: <16550 or compatible> port 0x3e8-0x3ef irq 5 flags 0x30 on acpi0
>>>> 
>>>> The loader talks on the serial console fine, it's the kernel that doesn't use it which is the problem.
> 
> It might be not the serial port, to which the loader talks. The supermicro
> boards I dealt with, have a feature of VGA text mode redirection to the
> serial port. This is how bios redirection usually works.

Ahh OK, sneaky sneaky..

My has 'Forever', 'Until boot loader', and 'never', so I selected the second one.

> You could look at some bios knob which controls the point where the
> said redirection is stopped. It should be like 'after the OS takes
> the control', and not 'forever'. For BIOS, the loader is OS.


I just tried rebuilding the boot blocks to work at 115200 like so..

cd /usr/src/sys/boot
make BOOT_COMCONSOLE_SPEED=115200
sudo make install
sudo gpart bootcode -b /boot/pmbr -b /boot/gptboot -i 1 /dev/da0

However no luck either (with the above change)

--
Daniel O'Connor software and network engineer
for Genesis Software - http://www.gsoft.com.au
"The nice thing about standards is that there
are so many of them to choose from."
  -- Andrew Tanenbaum
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