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Hello, FRED!

November 13th, 2014 Packages and Architecture, Releases, Screenshots | Kommentieren »

I just want to introduce a new tool. Fred, the forensic registry editor by Daniel Gillen is included in the latest builds.

FRED, the forensic registry editor allows write access to the registry

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OpenVAS included, GUI for BLOB installation

October 30th, 2014 Cheatcodes, Releases, Screenshots | Kommentieren »

We made some progress in both handling of BLOBs (binary large objects, programs like Google Chrome or TeamViewer that are only available as binary packages. A new feature is the integration of OpenVAS, a vulnerability scanner to detect unsafe devices in your networks. I am especially proud for my wrapper script to start OpenVAS: This does all necessary preparation work, so you do not have to manually download vulnerability definitions or rebuild databases. However, OpenVAS is still fat and occupies more than 1.2GB RAM when started from DVD! So, some preparation is recommended.

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Fresh development build – fixes BLOB support

September 10th, 2014 Cheatcodes, Packages and Architecture, Releases | Kommentieren »

I just uploaded an image that fixes BLOB support. To use it:

  • dd the ISO to an USB thumb drive
  • Pass blobsize=512 (any value between 256 and 2048 makes sense) as boot parameter upon first boot – this wil create the LessLinuxBlob partition upon first boot
  • Download Chrome stable for i386 and put the deb to the folder /lesslinux/blobpart – use a file manager with root privileges for this
  • Reboot – Chrome is now contained in the menus

Besides this, Thunderbird and Firefox both got updated to 31.1.0, the kernel received a smaller upgrade to 3.16.2. The tools for acessing disk drives now use a different architecture. mmcblk devices (some card readers) are now recognized correctly, it works a bit faster and should be easier to integrate with upcoming releases of SaferSurf.

Download lesslinux-search-and-rescue-uluru-20140909-083241.iso

Introducing BLOB support

August 26th, 2014 Cheatcodes, Packages and Architecture, Releases, Screenshots | Kommentieren »

About one and a half years ago I started implementing suport for the possibility to persistently add binary applications to LessLinux. This enables adding closed source binary only software without polluting the open source build tree. BLOB support was used in a commercial derivative to include TeamViewer. Now it is also possible to add Google Chrome – quite some users requested this feature since Chrome has very good multimedia support and implements a remote desktop solution.

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Fresh development build (Search and Rescue) available

August 11th, 2014 Packages and Architecture, Releases | Kommentieren »

I just finished initial tests on a fresh development build for LessLinux Search and Rescue. Kernel is 3.15.9 and more than 100 packages have been updated. This thing feels quite stable, but there are reasons not to mark it stable yet:

  • Booting via HTTP or FTP will fail with this image since the tmpfs where the ISO is stored is too small. This will soon be fixed in upcoming images by providing an appropriate cheat code.

  • The BusyBox 1.21.1 built against uClibc has been replaced by BusyBox 1.22.1 linked against musl-libc – this should allow some cleanups in all init scripts as well as removing the statically linked modprobe binary in the initramfs.

  • There are a few statically linked (against glibc) binaries in the initramfs currently that either will be moved to musl or entirely removed. The new update procedure might allow the removal of xdelta3 from the initramfs for example.

  • Of course kernel 3.16 has to be added and tested. Expect this to happen with 3.16.1

But for most usage scenarios this unstable build will perform better and more stable than recent stable versions. Escpecially when booted from DVD or USB. Now, go, grab it here:


LessLinux Safersurf – Testversion verfügbar

July 30th, 2014 Releases, Screenshots | Kommentieren »

Sorry, no English version yet. You may run “LessLinux Safersurf” in English by changing lang=de to lang=en, but some tools will still use german localization, international builds will follow.

Leser einiger deutscher Computerzeitschriften kennen meine Systeme zum “Sicheren Surfen”. Den Anfang machte das 2009 und 2010 zusammen mit dem BSI entwickelte System “COMPUTER BILD Sicher Surfen”, nach 2011 wurde es etwas still um dieses System, bis mit der NSA-Affäre das Interesse stieg. Ich habe mich daher zur Veröffentlichung einer reinen Open Source Variante entschieden. Wie bisher ist eine Kernkomponente für erhöhte Sicherheit die Verwendung von Mandatory Access Control: Das sorgt dafür, dass nur wenige Prozesse aufs Internet zugreifen dürfen und Prozesse, die aufs Internet zugreifen, dürfen nur eine kleine Auswahl anderer Prozesse starten. Weitere Sicherheitsmerkmale betreffen das Dateisystem: Sowohl das persistent gehaltene Heimatverzeichnis als auch der Auslagerungsspeicher werden stark verschlüsselt.

Das System ist dazu gedacht, auf einen wenigstens 8GB großen USB-Stick installiert zu werden, unter Windows sollte hierfür der Win32DiskImager verwendet werden.

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Fresh unstable with kernel 3.15.4 available

July 9th, 2014 Packages and Architecture, Releases, Screenshots | Kommentieren »

I just finished building a fresh unstable using kernel 3.15.4. During the boot process no legacy map files for kernel modules are used anymore. So please tell me should booting from USB fail. A major change is that the stage03 build command and git SHA1SUM are now available in /etc/lesslinux/updater (look at the screenshot). This makes checking out corresponding sources and building modified ISOs much easier.

The version from the git tree and the build command are now accessible in /etc/lesslinux/updater.

Download lesslinux-search-and-rescue-uluru-20140707-145441.iso

Announcing “big fat full” builds + fork me on GitHub

June 20th, 2014 Howto, Packages and Architecture, Releases, Screenshots | Kommentieren »

I am proud to announce a new series. This is called “big fall full” – codenamed “Jabba”. It solves two purposes:

  1. Provide a simple way to include all packages that are built in the second stage in the live ISO
  2. Give the most simple starting point for building LessLinux and derived distributions

The second big change is that LessLinux development now takes place completely on GitHub. Scroll down to read how these two news fit together seamlessly!

Using Jabba builds

Of course you can use the Jabba builds as rescue system as well or as a nice replacement for the now defunct LFS Live CD, to start building LFS even when you do not have Linux system installed on some hard drive. Jabba builds will be released after major architectural changes or updates of core components like the used default compiler or the C library. This means mandatory releases every six to nine months and maybe convenience releases after updating kernels.

Jabba intentionally uses a really minimalistic user interface. After booting, the GUI consists of just two terminals, one with root privileges and one as normal user. You might start an XFCE- or LXQT-panel, but be warned: there might be many duplicate or non-functional entries in the menus. Thus it is easier most of the time to start needed programs by hand.

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Fresh stable Search and Rescue available

June 17th, 2014 Releases | Kommentieren »

I am proud to announce a fresh stable release of LessLinux Search and Rescue. This is basically a refinement of the May, 29th release and as such it does not pack many new features. New and untested is the inclusion of libbde, a library to access and mount Bitlocker encrypted drives (Windows Vista and above).

Download this build here: lesslinux-search-and-rescue/lesslinux-search-and-rescue-uluru-20140612-152957.iso

During the next days I will add an automatic update from the latest stable build and the build currently on PC Magazin as covermount DVD.

The next builds will move to Linux 3.15.x which starts a new unstable series. In the meantime building on the RaspberryPi progresses, so I am quite confident that in early June the first builds of LessLinux as thin client will be ready.

Let’s develop further

May 29th, 2014 Cheatcodes, Packages and Architecture, Releases, Screenshots | Kommentieren »

Here we go with a fresh development build. The build and the included software is quite stable, but menus, themes and small stuff need lots of cleanup. Xorg moved to 1.15 and Mesa to 10.1. This allowed inclusion of some games like Quadrapassel that I like to play during data rescue or forensic sessions. A few changes had to be made to be able to compile everything against Glibc 2.19 and Glib 2.40. Some old software that refused to compile against Glib 2.40 was retired, other programs were patched. The kernel used is 3.14.4. More than 150 packages have been update. Cool thing: LXQT has been added. To use it, pass


to the boot command line. It is quite usable but needs some polishing. Connman is included and totally usable if started from the command line. Unfortunately the Connman Gtk+ user interface is affected by a Gtk+. I am quite sure we can fix this for the next stable and then use Connman to replace Wicd. Everyone loves screenshots:

LXQT is now optional

And do not forget the download link: lesslinux-search-and-rescue-uluru-20140528-080923.iso