Hitchhiker's Guide to Openbsd

i386 
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. 
Sparc/Sparc64 
These machines will automatically use a serial console if started without a keyboard present. If you have a 
keyboard and monitor attached, you can still force the system to use a serial console with the following invocation 
at the 
ok
prompt. 
ok setenv input-device ttya
ok setenv output-device ttya
ok reset
[FAQ Index]
 
[To Section 3 - Getting started with OpenBSD]
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[e-mail]
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5 - Building the System from Source
 
[FAQ Index]
 
[To Section 4 - Installation Guide]
 
[To Section 6 - Networking]
 
5 - Building the System from Source
Table of Contents
●
5.1 - OpenBSD's Flavors
●
5.2 - Why should I build my system from source?
 
●
5.3 - Building OpenBSD from source
 
❍
5.3.1 - Overview
❍
5.3.2 - Install or upgrade to closest available binary
 
❍
5.3.3 - Fetching the appropriate source code
 
❍
5.3.4 - Building the kernel
 
❍
5.3.5 - Building userland
●
5.4 - Building a release
●
5.5 - Building X
 
●
5.6 - Why do I need a custom kernel?
 
●
5.7 - Building a custom kernel
●
5.8 - Boot-time configuration
●
5.9 - Using config(8) to change your kernel
●
5.10 - Getting more verbose output during boot
 
●
5.11 - Common problems, tips and questions when compiling and building
 
❍
5.11.1 - The build stopped with a "Signal 11" error
❍
5.11.2 - "make build" fails with "cannot open output file snake: is a directory"
❍
5.11.3 - My IPv6-less system doesn't work!
❍
5.11.4 - Oops! I forgot to make the 
/usr/obj
 directory first!
 
❍
5.11.5 - Put 
/usr/obj
 on its own partition
❍
5.11.6 - How do I not build parts of the tree?
 
❍
5.11.7 - Where can I learn more about the build process?
❍
5.11.8 - I didn't see any snapshots on the FTP site. Where did they go?
❍
5.11.9 - How do I bootstrap a newer version of the compiler (gcc)?
❍
5.11.10 - What is the best way to update 
/etc
, 
/var
, and 
/dev
?
 
❍
5.11.11 - Is there an easy way to make all the file hierarchy changes?
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5 - Building the System from Source
❍
5.11.12 - Can I cross-compile? Why not?