Hitchhiker's Guide to Openbsd

Time zone issues
OpenBSD expects the computer's real-time clock to be set to UTC (Universal Coordinated Time). Some other OSs 
expect the real-time clock to be set to local time. Obviously, this can create a bit of a problem if you are using both OSs 
on the same computer. One or the other is most likely going to have to be adapted. More info on doing this is in 
FAQ 8 - 
Why is my clock off by several hours?
4.10 - Sending your dmesg to [e-mail] after the install
Just to remind people, it's important for the OpenBSD developers to keep track of what hardware works, and what 
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4 - OpenBSD 4.9 Installation Guide
hardware doesn't work perfectly, including the hardware sensors that are found in machines. 
A quote from /usr/src/etc/root/root.mail 
If you wish to ensure that OpenBSD runs better on your machines, please 
do us
a favor (after you have your mail system configured!) and type 
something like:
# (dmesg; sysctl hw.sensors) | \
mail -s "Sony VAIO 505R laptop, apm works OK" [e-mail]
so that we can see what kinds of configurations people are running. As 
shown,
including a bit of information about your machine in the subject or the 
body
can help us even further. We will use this information to improve 
device driver
support in future releases. (Please do this using the supplied GENERIC 
kernel,
not for a custom compiled kernel, unless you're unable to boot the 
GENERIC
kernel. If you have a multi-processor machine, dmesg results of both 
GENERIC.MP
and GENERIC kernels are appreciated.) The device driver information we 
get from
this helps us fix existing drivers. Thank you!
Make sure you send email from an account that is able to also receive email so developers can contact you if they have 
something they want you to test or change in order to get your setup working. It's not important at all to send the email 
from the same machine that is running OpenBSD, so if that machine is unable to receive email, just 
$ (dmesg; sysctl hw.sensors) | mail [e-mail]
and then forward that message to 
[e-mail]
where 
[e-mail]
is your regular email account. 
NOTES 
●
Please send only GENERIC kernel dmesgs. Custom kernels that have device drivers removed are not helpful. 
●
If you have a supported multiprocessor system and normally run the GENERIC.MP kernel, it is helpful to 
developers to see the dmesg output of both the GENERIC kernel and the GENERIC.MP kernel, so please send 
both of them in separate emails. 
●
The dmesgs are received on a computer using the 
spamd
 spam rejection system. This may cause your dmesg to 
not be accepted by the mail servers for a period of time. Be patient, after half an hour to an hour or so, it will get 
through. 
The method above is very easy, but if you have chosen not to configure mail on your OpenBSD system, you should still 
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4 - OpenBSD 4.9 Installation Guide
send your dmesg to the developers. Save your dmesg output to a text file. 
$ (dmesg; sysctl hw.sensors) > ~/dmesg.txt
Then transfer this file (using FTP/scp/floppydisk/carrier-pigeon/...) to the system you normally use for email. Since the 
dmesg output you send in is processed automatically, be sure to check the following when using alternate email clients/
systems: 
●
Configure your email client to send messages as plain text; do not use HTML-formatted email. 
●
Turn off any forced line break feature. Many email clients are configured to insert line breaks at 72 columns (the 
norm for mailing lists). 
●
Make sure your email client does not reformat messages into "text-flow" nonsense. 
●
Do not send the dmesg output as file attachment. Put the dmesg output into the body of the message.