Gentoo
Gentoo GNOME 3.30 for all init systems
Submitted by Roy Schestowitz on Wednesday 27th of March 2019 07:06:02 PM Filed under

GNOME 3.30 is now available in Gentoo Linux testing branch.
Starting with this release, GNOME on Gentoo once again works with OpenRC, in addition to the usual systemd option. This is achieved through the elogind project, a standalone logind implementation based on systemd code, which is currently maintained by a fellow Gentoo user. It provides the missing logind interfaces currently required by GNOME without booting with systemd.
For easier GNOME install, the desktop/gnome profiles now set up default USE flags with elogind for OpenRC systems, while the desktop/gnome/systemd profiles continue to do that for systemd systems. Both have been updated to provide a better initial GNOME install experience. After profile selection, a full install should be simply a matter of `emerge gnome` for testing branch users. Don’t forget to adapt your system to any changed USE flags on previously installed packages too.
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Don't Look For Gentoo's CPU Optimization Options To Land In The Mainline Linux Kernel
Submitted by Roy Schestowitz on Sunday 24th of February 2019 10:03:09 AM Filed under

Gentoo's Linux kernel build has long offered various CPU options in allowing those building their distribution to optimize their kernel build to the CPU being used. Every so often the patch is suggested for upstreaming to the mainline Linux kernel before being quickly rejected by the upstream maintainers.
This week the kernel CPU options patch was suggested for mainlining in the Linux kernel. The patch adds extra CPU options to the kernel configuration (Kconfig) area for adjusting the GCC optimization values for various generations of Intel/AMD CPUs. It allows building the kernel ranging from -march=k8-sse3 to -march=cannonlake, among other prominent generations of Intel/AMD processors over the years.
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Redcore Linux Gives Gentoo a Nice Facelift
Submitted by Rianne Schestowitz on Friday 15th of February 2019 06:12:03 PM Filed under


I like the overall look and feel of Redcore Linux. I generally do not use Gentoo-based Linux distros.
However, this distro does a good job of leveling the field of differences among competing Linux families. I especially like the way the LXQt and the KDE Plasma desktops have a noticeable common design that makes the Redcore distro stand out.
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Attack on git signature verification via crafting multiple signatures
Submitted by Roy Schestowitz on Saturday 26th of January 2019 04:19:48 PM Filed under


This article shortly explains the historical git weakness regarding handling commits with multiple OpenPGP signatures in git older than v2.20. The method of creating such commits is presented, and the results of using them are described and analyzed.
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Custom Linux Installations
Submitted by Roy Schestowitz on Wednesday 23rd of January 2019 08:55:03 PM Filed under



Customize your Linux installation and gain working knowledge of your system at the same time.
Most Linux users are content with a standard installation of their distribution of choice. However, many prefer a custom installation. They may simply prefer to do things their way without dozens of post-install tweaks. Others may want to know exactly what they are installing as a requirement for security. Still others may want a consistent installation for multiple machines or to learn more about their operating system step by step. Linux offers tools for all these purposes.
Admittedly, most of these tools are for major distributions. A survey of these tools shows that many are for time-tested distros like Debian or openSUSE. If you want a custom install of, say, KDE neon or Puppy Linux, you may not find a ready-made solution. But among the major distributions, you are like to find multiple solutions. Read on for some of the main options.
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Calculate Linux 18.12 released
Submitted by Roy Schestowitz on Saturday 29th of December 2018 09:00:54 PM Filed under
We have a bunch of news for this last 2018 release. We have added support for installation on Btrfs with the zstd compression. All server editions have been optimized for size. Software can now be transferred when reinstalling the system. Our ISO images are packed in the zstd format to speed up the startup times for the LiveCD, applications and system installation.
Are available for download: Calculate Linux Desktop featuring the KDE (CLD), Cinnamon (CLDC), LXQt (CLDL), Mate (CLDM) or else Xfce (CLDX and CLDXE) environments, Calculate Directory Server (CDS), Calculate Linux Scratch (CLS) and Calculate Scratch Server (CSS).
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Calculate Linux Desktop 18 LXQt released
Submitted by Roy Schestowitz on Thursday 29th of November 2018 08:34:26 PM Filed under
We are happy to announce the release of a new Calculate Linux Desktop flavour, featuring the LXQt desktop and therefore named CLDL. As well as other Calculates, it is backward compatible with Gentoo. As well as Gentoo, it uses Portage to install and manage packages. Our repository contains 13033 binary packages. The system boots with OpenRC. For network configuration, you have the choice between NetworkManager or OpenRC. For sound management, ALSA is suggested, PulseAudio is not needed.
CLDL is the fifth little one in the Calculate Linux Desktop family, providing a full-fledged workplace both in office and at home. This new distribution perfectly combines the advantages of Qt5, which is indeed the base for its interface, with the low system requirements of the Openbox window manager. CLDL is localized out-of-box in all standard European languages.
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Elivepatch Progressing For Live Kernel Patching On Gentoo, Rolling To Other Distros
Submitted by Roy Schestowitz on Thursday 22nd of November 2018 09:15:53 PM Filed under

Elivepatch is a distributed live kernel patching mechanism developed by the Gentoo crowd during GSoC 2017 and has continued to be developed. While it is still centered around Gentoo, there are ambitions to bring this open-source live kernel patching tech to other distributions.
Alice Ferrazzi as the Gentoo Kernel Project Leader has been central to the development of Elivepatch going back to its start almost two years ago and she presented on it last week at Linux Plumbers Conference 2018. Elivepatch builds upon the live-patching code in the mainline kernel but was motivated due to the different vendor solutions being quite limited. For example, Oracle with Ksplice only works with Oracle Linux kernels, some of the vendor solutions being closed-source, requiring other custom kernel bits, or lack long-term support.
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Compartmentalized computing with CLIP OS
Submitted by Roy Schestowitz on Thursday 8th of November 2018 07:22:34 PM Filed under

The design of CLIP OS 5 includes three elements: a bootloader, a core system, and the cages. The system uses secure boot with signed binaries. Only the x86 architecture was supported in the previous versions, and there are no other architectures in the plan for now. The core system is based on Hardened Gentoo. Finally, the cages provide user sessions, with applications and documents.
Processes running in separate cages cannot communicate directly. Instead, they must pass messages using special services on the core system; these services are unprivileged and confined on the cage system, but privileged on the core. These communication paths are shown in this architecture diagram from the documentation. Cages are also isolated from the core system itself — all interactions (system calls, for example) are checked and go through mediation services. The isolation between applications will be using containers, and the team plans to use the Flatpak format. The details of the CLIP OS 5 implementation are not available yet, as this feature is planned for the stable release.
A specific Linux security module (LSM) inspired from Linux-VServer will be used to add additional isolation between the cages, and between the cages and the core system. Linux-VServer is a virtual private server implementation designed for web hosting. It implements partitioning of a computer system in terms of CPU time, memory, the filesystem, and network addressing into security contexts. Starting and stopping a new virtual server corresponds to setting up and tearing down a security context.
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Calculate Linux 18 released
Submitted by Roy Schestowitz on Sunday 7th of October 2018 03:16:23 PM Filed under
We are happy to announce the release of Calculate Linux 18!
In this latest version, Calculate Utilities were ported to Qt5, your network is managed in a different way, and binary packages get checked using their index signature.
Calculate Linux Desktop featuring KDE (CLD), Cinnamon (CLDC), Mate (CLDM), or Xfce (CLDX) environments, Calculate Linux Scratch (CLS), Calculate Directory Server (CDS) and Calculate Scratch Server (CSS) are available for download.
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