copying out the complete file tree from an ext4 formatted partition right on macOS

Mac and Windows users share one thing. Accessing an ext4 formatted partition is virtually impossible. The problem is serious enough so that IoT distributions like Raspberry Pi OS offer workarounds that give Mac and Windows users at least a few opportunities to customize their flashed memory cards before booting the IoT device itself.

Since tools like guestfish are able to mound ext4 partitions why not run such a tool using Docker and access the files this way? I saw the one or the other try but getting it running was a nightmare. Already due to the fact that guestfish logs all of its output as an error which is not forward by Docker. Therefor I developed a script on my own to see if things can’t be easier. And I suppose they can as you can convince yourself on my new gist on copying-out files from ext4 partition resp. any img guestfish can access.

Koodies Banner



A few days ago—while working on a larger project—I released my first multi-platform software library for the awesome Kotlin language.

Koodies is a random selection of goodies to make a Kotlin developer’s life even easier. Features range from various generic builders and special purpose builders (like for shell scripts or Docker command lines) over Java NIO 2 extension functions to various utilities for easier dealing with time, graphics, Unicode, etc.


I can be downloaded from Bintray and is hosted on GitHub.

Sketch Notes on a Scrum Master Training

Mastering Scrum does not lose any of its importance for me. Therefor I decided to go for a Scrum Master Certificate months ago. Due to the Corona pandemic my plans relativized, since the next trainings would be online and I wanted in person. But last week it happened: The training with a small group of other finally took place 😁

It was a 3 day training by Timon Fiddike and Anton Skornyakov from Those guys did a great job at coping with the range of experience the participants had. The most unexpected thing for me was—and I guess that was the key driver for that highly valuable training—they actually implemented Scrum elements during the training itself. Having dailies, a retrospective, and most importantly: they listened to what the group wished for. And: they checked if their “corrections” had the intended effect. (That is something so important and far too rarely done.)

Oh and one last thing: I’m so happy I did it. 10min before leaving my apartment I saw some empty sketch books laying around. Unused. So—although I never did that before—I grabbed one and documented everything I considered relevant to myself in it (which is the excuse for being too late on the first day). As I got unexpectedly positive feedback on it, I decided to share it with you. I hope you enjoy!

Online Grid Generator for Photoshop

For those who layout their websites with grids it is very common to use grid systems like grid the 960 GRID SYSTEM.

The bugging thing about it is always to prepare a corresponding photoshop file. But now the GRID CALCULATOR comes to help!

Simply enter your grid definition and the online tool creates a photoshop script you only need to double click. Et voilà: the corresponding guides are created directly in your photoshop file.

CSS preprocessing

I always thought that CSS lacks in expressiveness which is far below the one of XPath. For example you can’t select elements based on their child elements. How nice would it be if you could format anker tags if and only if they contain a single image tag.
For this to work you would simply use the following XPath expression:


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Color Wizard

Tired of bright red, green or blue?
Then try out the Color Wizard on

Given one color the tool gives you 3 variations (hue, saturation and tint&shade) as much as 6 corresponding colors (monochromatic, analogous, triadic, tetradic, complimentary and split complimentary). Give it a shot!

Osama Bin Laden killed live on a news broadcast! watch the video: …

A worm has started to spread over Facebook promising
the user a video where the killed Osama Bin Laden can be seen.

The link is:

On the corresponding Facebook profile you are asked to copy a javascript line following line into the browser’s location bar which reloads a JavaScript file named “bin.js” from a doubtful source.

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