Loss of serial ports after upgrade.

[maillist at brundoggy.com]

On Thu, 9 Jun 2005, Kevin Oberman wrote:

...> Date: Thu, 9 Jun 2005 14:54:35 -0500 (CDT)
...> From: maillist at brundoggy.com
...> Sender: owner-freebsd-stable at freebsd.org
...>
...>
...> Hi,
...>
...> I upgraded my 4.6 to 4.10 a while back and no longer have a sio0 or sio1.
...> I've checked the BIOS and my kernel config has the proper lines.  Yesterday
...> I cvsuped to 4.11 built and installed a new kernel and world, hoping that
...> might kick it into remembering I have two serial ports, to no avail.
...>
...> I booted a 4.6 kernel and low and behold I have my serial ports. But,
...> obviously other problems have risen.
...>
...> Any thoughts?
...>
...> Current dmesg output:
...>
...> FreeBSD 4.11-STABLE #0: Wed Jun  8 14:35:30 CDT 2005
...>     root at brundoggy.com:/usr/src/sys/compile/PALADINE
...> Timecounter "i8254"  frequency 1193182 Hz
...> CPU: Intel(R) Pentium(R) 4 CPU 1.50GHz (1513.49-MHz 686-class CPU)
...>   Origin = "GenuineIntel"  Id = 0xf12  Stepping = 2
...>
...> Features=0x3febfbff<FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,CLFLUSH,DTS,ACPI,MMX,FXSR,SSE,SSE2,SS,HTT,TM>
...> real memory  = 1342160896 (1310704K bytes)
...> config> di psm0
...> config> di sio1
...> config> di sio0
...
...'di' is the disable command. These commands disable sio0 and sio1, so I
...would not expect them to work or even be seen. The first command
...disables the mouse, but you may want that.
...
...It looks like you managed to add these lines to your /boot/kernel.conf
...file.
...--
...R. Kevin Oberman, Network Engineer
...Energy Sciences Network (ESnet)
...Ernest O. Lawrence Berkeley National Laboratory (Berkeley Lab)
...E-mail: oberman at es.net			Phone: +1 510 486-8634
...

Thank you Kevin.  That solved the problem.  I'm not sure how the
di(sable) for sio0/1 was written into the kernel.conf.  It has been a
little while.  Maybe my mind is a little hazy.  Maybe I had a reason at
the  time to disable the serial ports.  I am wondering why, when I booted
the 4.6 kernel, the serial devices were recognized?

Greg