v14.1 Release - Bugfixes, Maintenance and More

About seven months after the release of v14.0 we are proud to announce the updated v14.1 release.

turnkey 14.0 banner

All of the v14.1 appliances are available for immediate launch in the cloud via the Hub. Amazon MarketPlace builds are on the way too although no ETA at present. All the other builds (e.g. ISO, OVA, Xen, etc.) can be downloaded from their respective appliance pages (eg. LAMP, WordPress Node.js etc). Alternatively the entire library can be downloaded via one of our mirrors.

systemd sysv init compatibility mode: how it works and troubleshooting when it breaks

systemd sysv init compatibility mode is magical. That is in the sense that it tries to handle compatibility with sysv init scripts while you are distracted looking somewhere else.

When it works it works well, but when things break it makes troubleshooting more difficult. Especially if you don't understand what's going on behind the curtain.

The first thing you need to understand is that this probably doesn't do what you expect:

Python's timeless principles of good software

$ python -c 'import this'
The Zen of Python, by Tim Peters

Beautiful is better than ugly.
Explicit is better than implicit.
Simple is better than complex.
Complex is better than complicated.
Flat is better than nested.
Sparse is better than dense.
Readability counts.
Special cases aren't special enough to break the rules.
Although practicality beats purity.
Errors should never pass silently.
Unless explicitly silenced.
In the face of ambiguity, refuse the temptation to guess.
There should be one-- and preferably only one --obvious way to do it.
Although that way ma

Bug hunting with the scientific method

I've never come across a problem I couldn't solve using the following technique / problem solving methodology, and I've come across some tough ones.


Blog Tags: 

v14.0 stable release - Massive Community Effort!

Drum roll please... May I proudly introduce: The TurnKey Linux v14.0 release!

turnkey 14.0 banner

A long time coming...

Wow is it mid September already!? What has happened to the year?!

Marching towards v14.0 RC2

Update: v14.0 stable is available in all build types: OVA & VMDK, Proxmox, OpenNode & Docker (Proxmox build is somewhat generic LXC/OpenVZ container) and Xen & OpenStack.

How to build a TurnKey appliance ISO from source

[UPDATE:] This blog post has been converted to a Doc page and has had some updates since this post was published.

TurnKey v14.0 RC1 is LIVE! (aka we need YOU!)

Update: v14.0 stable is available in all build types: OVA & VMDK, Proxmox, OpenNode & Docker (Proxmox build is somewhat generic LXC/OpenVZ container) and Xen & OpenStack.

Invalidating the disk cache on Linux

Here's a super easy way to invalidate the disk cache, which is useful for testing IO performance in the real world, where you can't rely on all of your reads being served up from a super-fast RAM cache rather than a vastly slower physical disk drive.

This will free up everything in the disk cache:

echo 3 > /proc/sys/vm/drop_caches

Or if you want more control over exactly what is being freed...

  1. This frees up the pagecache (e.g., cache of contents of files):

Blog Tags: 

pyproject-pub: A simple Python project template

I hate repeating myself. It's boring. Life is too short. Like any self respecting hacker I will go out of my way to avoid it, even when I suspect it would cost me more to automate something away than to just do it by hand.

On the other hand, doing stuff I've done before by hand is no fun, while writing scripts is fun. Even when it does take longer, time is relative, or so Einstein said.

Blog Tags: 


Subscribe to development (Blog)