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Updated: 2 hours 20 min ago

[$] Darling: macOS compatibility for Linux

Tuesday 30th of July 2019 04:54:56 PM
There is an increasingly active development effort, known as Darling, that is aiming to provide a translation layer for macOS software on Linux; it is inspired in part by Wine. While Darling isn't nearly as mature as Wine, contributors are continuing to build out capabilities that could make the project more useful to a wider group of users in the future.

Subscribers can read on for a look at Darling from this week's edition.

Security updates for Tuesday

Tuesday 30th of July 2019 02:38:37 PM
Security updates have been issued by Fedora (cutter-re and radare2), Oracle (389-ds-base, httpd, kernel, libssh2, and qemu-kvm), Red Hat (389-ds-base, chromium-browser, curl, docker, httpd, keepalived, kernel, kernel-alt, kernel-rt, libssh2, perl, podman, procps-ng, qemu-kvm, qemu-kvm-ma, ruby, samba, and vim), Scientific Linux (389-ds-base, curl, libssh2, and qemu-kvm), SUSE (bzip2 and openexr), and Ubuntu (python-urllib3 and tmpreaper).

NumPy 1.17.0 released

Monday 29th of July 2019 05:20:38 PM
The NumPy team has announced the release of NumPy 1.17.0. NumPy is a fundamental package for scientific computing with Python. "The 1.17.0 release contains a number of new features that should substantially improve its performance and usefulness. The Python versions supported are 3.5-3.7, note that Python 2.7 has been dropped." proposal deadline extended

Monday 29th of July 2019 04:55:54 PM
For those didn't quite get around to putting in a proposal for 2020 (Gold Coast, January 13 to 17), there's another chance: the proposal deadline has been extended to August 11. "We have heard that some of you would like a bit more time to submit your proposals for 2020. So, we have decided to extend the due date by two weeks to help everyone have a chance to submit."

Security updates for Monday

Monday 29th of July 2019 02:17:50 PM
Security updates have been issued by Debian (patch, sdl-image1.2, and unzip), Fedora (deepin-clone, dtkcore, dtkwidget, and sqlite), Mageia (virtualbox), openSUSE (firefox), and SUSE (cronie and firefox).

Kernel prepatch 5.3-rc2

Sunday 28th of July 2019 08:29:36 PM
The 5.3-rc2 kernel prepatch is available for testing. "There are fixes all over, I don't think there's much of a pattern here. The three areas that do stand out are Documentation (more rst conversions), arch updates (mainly because of the netx arm platform removal) and misc driver fixes (gpu, iommu, net, nvdimm, sound ..)".

Some weekend stable kernel updates

Sunday 28th of July 2019 08:26:38 PM
The 5.2.4, 5.1.21, and 4.19.62 stable kernel updates have been released; each contains another set of important fixes. Note that 5.1.21 is the end of the line for the 5.1.x series.

GitHub starts blocking developers in countries facing US trade sanctions (ZDNet)

Saturday 27th of July 2019 02:46:34 PM
ZDNet reports on GitHub's blocking of users from Crimea and Iran. "As GitHub notes on its page about US trade controls, US sanctions apply to its online hosting service,, but its paid-for on-premise software -- aimed at enterprise users -- may be an option for users in those circumstances. It also claims to be in discussions with US regulators about how to rectify the situation."

[$] Completing the pidfd API

Friday 26th of July 2019 08:27:52 PM
Over the last few kernel releases, the kernel has gained the concept of a "pidfd" — a file descriptor that represents a process. What started as a way of sending signals to processes without race conditions has evolved into a more complete process-management interface. Now one of the last pieces is being put into place: the ability to wait for processes using pidfds. But, naturally, that API has had to go through some revisions first.

Stable kernels 5.2.3, 5.1.20, and 4.19.61

Friday 26th of July 2019 02:10:40 PM
Three new stable kernels have been released: 5.2.3, 5.1.20, and 4.19.61. These are rather larger updates than most and, as usual, contain fixes throughout the kernel tree; users should upgrade.

Security updates for Friday

Friday 26th of July 2019 01:28:53 PM
Security updates have been issued by Debian (libssh2 and patch), Fedora (kernel and kernel-headers), Mageia (vlc), Red Hat (rh-redis32-redis), SUSE (libgcrypt, libsolv, libzypp, zypper, and rmt-server), and Ubuntu (exim4, firefox, libebml, linux, linux-aws, linux-kvm, linux-raspi2, and vlc).

[$] Access to complex video devices with libcamera

Thursday 25th of July 2019 09:13:47 PM
Laurent Pinchart began his Open Source Summit Japan 2019 talk with a statement that, once upon a time, camera devices were simple pipelines that produced a sequence of video frames. Applications could control cameras using the Video4Linux (V4L) API by way of a single device node; there were "lots of knobs", but the overall task was straightforward. That situation has changed over the years, and application developers need more help; that is where the libcamera project comes in.

Security updates for Thursday

Thursday 25th of July 2019 02:55:10 PM
Security updates have been issued by CentOS (java-1.7.0-openjdk, java-1.8.0-openjdk, and java-11-openjdk), Debian (exim4), Fedora (java-latest-openjdk), openSUSE (libsass, tomcat, and ucode-intel), Oracle (java-1.7.0-openjdk and thunderbird), SUSE (OpenEXR, spamassassin, and thunderbird), and Ubuntu (ansible and patch).

[$] Weekly Edition for July 25, 2019

Thursday 25th of July 2019 01:34:16 AM
The Weekly Edition for July 25, 2019 is available.

[$] Python "standard" library

Wednesday 24th of July 2019 07:33:08 PM
Python is often mentioned in the same breath with the phrase "batteries included", which refers to the breadth of its standard library. But there is an effort underway to trim back the standard library by removing some unloved modules. In addition, there has been persistent talk of a major restructuring of the library, into a fairly minimal core as described in Amber Brown's talk at this year's Python Language Summit, or in other ways as discussed on the python-dev mailing list in January (though it has come up many times before that as well). A mid-July python-ideas mailing list thread picked up on some of that; it ended up showing, once again, that there is no real consensus on what the standard library is—or should be.

Introducing Fedora CoreOS

Wednesday 24th of July 2019 04:34:22 PM
Fedora Magazine covers the first preview release of Fedora CoreOS, a new Fedora edition built specifically for running containerized workloads. "It's the successor to both Fedora Atomic Host and CoreOS Container Linux. Fedora CoreOS combines the provisioning tools, automatic update model, and philosophy of Container Linux with the packaging technology, OCI support, and SELinux security of Atomic Host."

Security updates for Wednesday

Wednesday 24th of July 2019 03:29:04 PM
Security updates have been issued by Debian (kernel, linux-4.9, and neovim), Fedora (slurm), openSUSE (ImageMagick, libgcrypt, libsass, live555, mumble, neovim, and teeworlds), Oracle (java-1.7.0-openjdk, java-1.8.0-openjdk, and java-11-openjdk), Red Hat (java-1.7.0-openjdk), Scientific Linux (java-1.7.0-openjdk), SUSE (glibc and openexr), and Ubuntu (mysql-5.7 and patch).

[$] Protecting update systems from nation-state attackers

Wednesday 24th of July 2019 02:56:12 PM
Frequent updates are a key part of keeping systems secure, but that goal will not be met if the update mechanism itself is compromised by an attacker. At a talk during the 2019 Open Source Summit Japan, Justin Cappos described Uptane, an update delivery mechanism for automotive applications that, he said, can prevent such problems, even when the attacker has the resources of a nation state. It would seem that some automobile manufacturers agree.

[$] Accessing zoned block devices with zonefs

Tuesday 23rd of July 2019 09:15:40 PM
Zoned block devices are quite different than the block devices most people are used to. The concept came from shingled magnetic recording (SMR) devices, which allow much higher density storage, but that extra capacity comes with a price: less flexibility. Zoned devices have regions (zones) that can only be written sequentially; there is no random access for writes to those zones. Linux already supports these devices, and filesystems are adding support as well, but some applications may want a simpler, more straightforward interface; that's what a new filesystem, zonefs, is targeting.

Security updates for Tuesday

Tuesday 23rd of July 2019 03:10:06 PM
Security updates have been issued by Debian (libsdl2-image and libxslt), Oracle (java-1.8.0-openjdk and java-11-openjdk), Scientific Linux (java-1.8.0-openjdk and java-11-openjdk), SUSE (bzip2, microcode_ctl, and ucode-intel), and Ubuntu (clamav, evince, linux-hwe, linux-gcp, linux-snapdragon, and squid3).

More in Tux Machines

Enjoy C&C Red Alert on Linux

I am extremely happy. I remember trying to play Red Alert about 10 years ago, and you had to patch files, and there was this and that, but now, it's smooth, seamless. This is true for many other games of this type, and it's easier to get them running on the latest operating systems than it was a few years after their demise. This is because people realized how valuable and dear they were. Everything works well in this setup, but if you're not happy for some reason, you have cross-platform support, and there's also the fully open-source OpenRA clone. This one, alongside my DOSBox classics, many of which I still have the original save games for, plus OpenTTD, is the mainstay of excellence, from an era when computer gaming was pure and hard and utterly unforgiving. And it shows. I hope you find this little guide valuable. Next on the menu, Yuri's Revenge. See you soon. Read more

today's howtos

Debian: Introducing Noir, miniDebConf19 Vaumarcus and New Feature

  • Introducing Noir

    Noir is a drop-in replacement for Black (the uncompromising code formatter), with the default line length set to PEP-8's preferred 79 characters. If you want to use it, just replace black with noir in your requirements.txt and/or and you're good to go. Black is a Python code formatter that reformats your code to make it more PEP-8 compliant. It implements a subset of PEP-8, most notably it deliberately ignores PEP-8's suggestion for a line length of 79 characters and defaults to a length of 88. I find the decision and the reasoning behind that somewhat arbitrary. PEP-8 is a good standard and there's a lot of value in having a style guide that is generally accepted and has a lot of tooling to support it. When people ask to change Black's default line length to 79, the issue is usually closed with a reference to the reasoning in the README. But Black's developers are at least aware of this controversial decision, as Black's only option that allows to configure the (otherwise uncompromising) code formatter, is in fact the line length. Apart from that, Black is a good formatter that's gaining more and more popularity. And, of course, the developers have every right to follow their own taste. However, since Black is licensed under the terms of the MIT license, I tried to see what needs to be done in order to fix the line length issue.

  • miniDebConf19 Vaumarcus – Oct 25-27 2019 – Registration is open

    The Vaumarcus miniDebConf19 is happening! Come see the fantastic view from the shores of Lake Neuchâtel, in Switzerland! We’re going to have two-and-a-half days of presentations and hacking in this marvelous venue and anybody interested in Debian development is welcome.

  • New feature, the build service for installation and cloud images has a new feature. When building an installation images, you can enable automatic reboot or shutdown at the end of the installation in the advanced options. This was implemented due to request by users, that are using the service for their VM instances or computers without any keyboard connected.

FreeBSD's Executive Director Calls For Linux + BSD Devs To Work Together

While called the Open-Source Summit, the event is primarily about Linux as after all it's hosted by the Linux Foundation. But at this week's Open-Source Summit in San Diego, Deb Goodkin as the executive director of the FreeBSD Foundation presented. Deb's talk was of course on FreeBSD but also why FreeBSD and Linux developers should work together. The presentation covered FreeBSD's development workflow and various features of this open-source operating system project for those unfamiliar as well as some of the companies utilizing FreeBSD and their different use-cases. It's a good overview for those not familiar with FreeBSD. Read more