>From the OpenBSD FAQ: At the boot loader prompt, enter
boot> *set tty com0* This will tell OpenBSD to use the first serial port (often called COM1 or COMA in PC documentation) as a serial console. The default baud rate is 9600. You set the speed higher by first typing "stty com0 19200" This is documented in the boot.conf man page. On your workstation you can use tip(1) as terminal emulator. You can easily record the session to file by creating a ".tiprc" file: beautify record='LOGS/serial-log.txt' script verbose Create the LOGS directory, add yourself to the dialer group. With something like"tip -v -19200 tty00" you can then start tip. If you have an USB->Serial converter you need to use ttyU0 as mentioned in ucom(4) On Tue, Dec 16, 2014 at 7:09 AM, Rod Whitworth <[email protected]> wrote: > > On Tue, 16 Dec 2014 00:16:52 -0500, Ted Unangst wrote: > > >On Tue, Dec 16, 2014 at 16:05, Rod Whitworth wrote: > >> I tried 5.5 - crashes there too. > >> > >> 5.4 and earlier work well. > >> > >> Clues? I love these low power skinny boxes in my rack and I'm betting > that > >> the problem > >> exists in all the ones I have, but I cannot take the others down until I > >> have one to swap in. > > > > >1. connect a serial cable or something to record output. > > I like the idea of getting chars ready to print but how do I get the data > going to the rs232 > port that is on all of these boxes (luckily!) ? I missed the class that > taught that trick. 8-) > > > > > >2. get a video camera. smartphone should be good enough. > > >3. brute force. build kernels from source from 5.4 onwards. the good > >news is this will only take about seven kernels to find the offending > >commit; the bad news is building old snapshot ramdisk kernels is quite > >a pain. > > > > *** NOTE *** Please DO NOT CC me. I <am> subscribed to the list. > Mail to the sender address that does not originate at the list server is > tarpitted. The reply-to: address is provided for those who feel compelled > to reply off list. Thankyou. > > Rod/ > --- > This life is not the real thing. > It is not even in Beta. > If it was, then OpenBSD would already have a man page for it.
