Tag - gnu-linux

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Melina by p0ke - titeiko - zerkman

Melina by p0ke - titeiko - zerkman

I participated to a Raspberry Pi demo, which just participated to the alternative platform demo competition at the Evoke demoparty in Köln, Germany. We got the fifth place out of six, which is rather logical since this prod was neither technically nor artistically impressive. But it was fun to do anyway, especially on that platform !

You can download and run it on your Pi aswell. It requires a Raspbian Linux system. It can be run directly from the console, and it was successfully tested on a 256 MB model with memory configuration of 64 MB of VRAM and 192 MB of RAM.

"retrostation" demo released !

I am very proud to announce the release of my PS3 demo called retrostation.

I know it is a bit late compared to sony's decision to completely remove the Install Other OS functionality from the new firmware release of latest April 1st. However, I started this project more than two years ago, so I definitely wouldn't stop this until it is done. I also know about people who still haven't updated their system, because they are aware of what they will lose, so this is a way to show them what they can do with a ps3 system, even without hardware 3D acceleration.

The demo is an animation of different kinds of 3D objects. Some of these have been designed by Mic of Dune, who did a really good job. Others are coming from old Atari ST demos. I let you try and find out from which demos they come from ! Objects of the last kind are algorithmically generated: blobs and text in separately-animated pieces.

The music has been composed by Dma-Sc of Sector One, who also did a great job in the final design of the whole animation. I personally also use my own demoscene nickname in the demo, which is Zerkman of Sector One.

The demo runs on any PS3 system with a linux OS installed on it. It runs in framebuffer mode. Ensure you set the screen mode to 720p 1280*720, and disabled the Xorg server before running the demo.

I hope you'll like the demo as much as I liked making it.

The entry on the pouët.net website is here. From there, you can download a binary version of the demo, as well as a video of the demo (HD 720p, 60 fps).

Cross compile a Debian kernel for PlayStation 3

A previous article in this blog was dealing with building an optimized Linux kernel for Debian GNU/Linux on a PlayStation 3. This however required to build the kernel on the PS3 itself, while you may also have a powerful multi-core PC which should be able to do the job a lot faster.

This article deals with compiling a kernel Debian package on a PC running Debian GNU/Linux, through the use of a cross compiler.

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A PlayStation 3 firmware update file extractor

Official PlayStation 3 firmware update files basically are uncompressed archives containing different subparts.

The pupextract program I wrote basically is a one-hour project which just takes a firmware update file as input, and separate the different subparts into different files. One of these output files, which I called update.tar, is a simple GNU tar archive, containing the (encrypted) files for the firmware update. Another one contains the end-user licence agreement (EULA), while some contain basic information such as the release version number, and others contain empty or unknown data.

Not sure it will be useful for many people, but I decided to release it under the GPLv3 free software licence.

Download source code of pupextract v0.01

Build PS3-optimized kernel for Debian GNU/Linux

I present the different required steps to get an up-and-running kernel for Debian GNU/Linux running on the Playstation 3.

This method requires a fully working Debian GNU/Linux system on a powerpc platform, which means it does not cover cross-compilation issues. It has been tested on the PS3 itself.

Note: This method was working at the time it was written. The method should always be correct, even though file names may change with different version updates. I will try to keep this page as up-to-date as possible, but things may not work from one time to another. In this case, you will have to find out about the file names by yourself. In the rest of this article I will always use the most recent file names at the date of latest update.

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Web server setup

Today we will discuss about basic Apache-based web server installation. This is a quite straightforward process on Debian systems.

I will also present the steps to setup the most commonly used Apache modules.

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I recently presented KVM as an efficient virtualization solution for PC's with VMX-enabled processors. Today I present another efficient solution for older processors.

QEMU is a well-known full system emulator, powerful enough to virtualize complete hardware systems. Its major drawback is that it actually emulates the processor, making it unefficient for virtualization purposes when performance is required. The KQEMU kernel module allows QEMU to use the host processor when running on a PC and emulating a PC, removing that performance barrier.

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Using KVM for virtual server setup

What best way to test a server setup than to just use a brand new machine dedicated for this purpose ? Unfortunately, not everyone has a spare computer dedicated to such activities. But there is at least one solution : use a virtual machine !

The virtualization solution I have been using is KVM, one of the most efficient ones.

This article deals with the different problems system administrators may encounter when setting up such a virtual server, as well as setting up the host computer (running a flavour of Debian GNU/Linux) to let it communicate with the virtual server.

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