Re: 9.2 Boot Problem

On 13 Apr 2014, at 4:07, Doug Hardie <[e-mail]> wrote:

> After much digging, I now know what it going on, but not why.  When getke=
y is called the first time, menu_timeout_enable is set to one. However, it =
is set to zero on every check after that.  In getkey after the comment "Was=
 a key pressed" is a check of key to see if a key was pressed.  It is retur=
ning a decimal 7 (BEL).  That then clears menu_timeout_enable and it then s=
its there waiting for a valid key input.  There is no keyboard plugged into=
 the system.  I have no idea how that BEL is being generated or even how to=
 prevent it.  Could it be possible that it comes from the serial console?  =
I tend to doubt thats the case since the system hangs during boot when the =
serial console is not connected.  I suppose that I could put in a test for =
a key value that is not a control character, but that would only work until=
 the next system update.  I'd have to remember to put it back in each time.=
  Thats not likely to happen.  My memory is not that good. Whats interestin=
g is that I have 4 systems (i386) doing this and 1 system (i386) and 2 syst=
ems (amd64) not doing it.  The only common thread is the 4 systems doing it=
 are about 100 miles from me and the working ones are here.

I=92m hardly an expert on serial console matters, but reading the above it =
seems to me that on the problematic systems you have the serial console con=
nected to some other remote machine(s) - at least, I doubt you are using a =
100 mile long serial cable.

Since the problematic systems all receive a BEL signal and the ones local t=
o you don=92t, the problem may not be at the receiving end but at the sendi=
ng end. Is there a difference between the sending part of the setup between=
 the systems that do receive that BEL signal and those that don=92t?

Alban Hertroys
--
If you can't see the forest for the trees,
cut the trees and you'll find there is no forest.

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