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How to try OpenBSD

Download and try the following OS, and give it a go.

OpenBSD v4.7

OpenBSD is a multi-platform 4.4BSD-based UNIX-like operating system, and is fast, simple to install and secure “out of the box”.

  1. Download installation files
  2. Read the Installation guide
  3. Read the Frequently Asked Questions

A good introductory book for OpenBSD is the “OpenBSD Command Line Companion” by Jacek Artymiak. It walks you through an install and an intro to OpenBSD.

Other books on the OS are:

Using your MacBookPro to PXEBoot OpenBSD

This post does not show a successful outcome in case that’s what you where hoping for.

I was trying to get OpenBSD bootstrapped using the PXEBoot NIC in a server. I decided to use my Mac which has tftp and bootpd installed. This post is quite in depth and technical so if you are game then read on.
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Death to Spam

I’ve been hit by a number of Spam comments recently that snuck through the filters.

If you are subscribed to the comments feed, apologies for this.

It turns out that since I moved TechDebug to a VM host, I did not follow my own post and the spam tools where not connecting to Akismet to check the comments. So remember that if you use OpenBSD and the default chroot for Apache, then you need to setup a resolv.conf to allow Apache to resolve hostnames.

It should be all fixed now. If I still get them sneaking through I may have to turn on “logins” to allow commenting. This is my last resort so it’s not in place yet.

OpenBSD, postgresql and semaphore failures during initdb

Today I upgraded my postgresql database instance on OpenBSD. Did a pg_dumpall, removed the old packages and then added the new ones (latest version 8.1.9 for OpenBSD 4.0 – yes I’m behind).

During the initialisation of the new DB, I got the following error:

creating directory /var/postgresql/data/pg_tblspc ... ok
selecting default max_connections ... 10
selecting default shared_buffers ... 50
creating configuration files ... ok
creating template1 database in /var/postgresql/data/base/1 ... FATAL: could not create semaphores: No space left on device
DETAIL: Failed system call was semget(1, 17, 03600).

The PostgreSQL documentation talks about this extensively. However I don’t want to recompile my kernel away from GENERIC. What else can I do?
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