[syslinux] extlinux 6.03 IPMI SOL (serial-over-lan) console not responding to input
Ady
ady-sf at hotmail.com
Mon May 18 12:09:12 PDT 2015
> On Mon, May 18, 2015 at 01:49:24PM -0400, Andrew J. Schorr via Syslinux wrote:
> > The good news is that it still has the same problem as the Fedora version.
> > If I attach a physical serial console, I am able to type at the boot
> > prompt. But when using the IPMI serial-over-lan console, all of my
> > input is ignored. So the same problem exists in the official binaries.
> >
> > I have seen this same behavior across three machines using two
> > different motherboards: Intel S5500WB and Intel S5520UR. And Ferenc Wagner
> > says he has this problem with Fujitsu Primergy CX250 S2 servers. So
> > there appears to be a bad interaction with the serial support and IPMI SOL.
> > This was all working fine in Fedora 19 extlinux 4.05.
> >
> > Does anybody have any ideas on how to troubleshoot further?
>
> Sorry for replying to my own post. This behavior is very similar
> to what happens under extlinux 4.05 when no flowcontrol flags are
> specified. When using IPMI SOL with 4.05, I found that I could not
> interact with extlinux until I added the 0x003 flowcontrol bits to the
> serial directive, like so:
> serial 0 115200 0x003
> Is there any chance that the 6.03 version does not implement these flowcontrol
> bits properly? That would explain the behavior that I've seen...
>
> Thanks,
> Andy
First, you should add all the lib*.c32 files for BIOS (located under
the BIOS subdir), so to avoid the error messages.
Then, just in case, have you tried changing:
serial 0 115200 0x003
with alternative values?
For instance:
port is a number (0 =/dev/ttyS0 = COM1, etc.) or an I/O port address
(e.g. 0x3F8).
Or trying a different speed, just for a test?
Or trying a different flowcontrol value for a test?
I am not saying it will certainly solve your situation (probably it
won't), and a bug in Syslinux 6.03 is not at all discarded.
The other suggestion I can think of would be to search for a BIOS
update.
I am aware that these are not the type of comments you would hope for.
Regards,
Ady.
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