Archive for January, 2010

Is this for real?

Tuesday, January 12th, 2010

When I was in high school, during IT classes we worked with DOS, WordPerfect for DOS and BASIC. When my sister showed me her school textbook ‘Information technologies for gymnasium’, I was expecting tons of Windows screenshots. But, I was surprised. Look at those:

Wow! Not only there are Ubuntu screenshots and big Wilber, no… The textbook explains what is Open Source, what are proprietary operating systems. You can even find words like FreeBSD, NetBSD, EXT2, EXT3, UFS :) They equally provide space for Microsoft Windows Vista, XP and Ubuntu Linux (no MacOSX). Granted, in the office section, they explain how to work with MS Office tools, but they acknowledge existence of, quoting ‘We were attracted by Microsoft Office 2007 and’, providing links to (on each chapter about office tools) and manuals.

And that big Wilber isn’t just to fill in space – they actually have 10 pages long ‘manual’ on how to use basic GiMP tools! There’s no Photoshop section in the book. Only GiMP for bitmap editing – and it’s even provided on the DVD shipped with the book.

Gvozadnović, Ikica, Kos, Miljaš, Srnec, Sekulić-Štivčević, Zvonarek (authors of the textbook) – you really surprised me and kudos for this great textbook. If you can read Croatian, take a look at

Call for testing: Cluster components of Ubuntu 10.04

Monday, January 11th, 2010

There was a discussion, at the last UDS, about cluster stack in Ubuntu 10.04 and later. Blueprint is located here. According to that spec, I’ve created packages for cluster-glue, cluster-agents, heartbeat, corosync, openais, pacemaker, keepalived, drbd and redhat-cluster.

Some of these packages are based on stuff Martin Loschwitz did and some are merged from Debian. Most of them have serious changes in packaging, but all of them are latest upstream version (except keepalived).

Now that those are packaged, we need help with testing. So, please, help us test those components. Choose redhat-cluster or pacemaker as a cluster stack. Combine with DRBD, KVM or Xen and try to break them. In a day or two, I’ll set up a wiki page with configuration instructions for these tools, so anybody could test it. Input from upstream is also welcome.

Packages are located at ubuntu-ha PPA:

Packages are created only for 10.04, Ubuntu Lucid Lynx.