Google has officially confirmed the company is shifting its in-house Linux desktop from the Ubuntu-based Goobuntu to a new Linux distro, the DebianTesting-based gLinux. From a report: Margarita Manterola, a Google Engineer, quietly announced Google would move from Ubuntu to Debian-testing for its desktop Linux at DebConf17 in a lightning talk. Manterola explained that Google was moving to gLinux, a rolling release based on Debian Testing. This move isn't as surprising as it first looks. Ubuntu is based on Debian. In addition, Google has long been a strong Debian supporter. In 2017, Debian credited Google for making [sic] "possible our annual conference, and directly supports the progress of Debian and Free Software." Debian Testing is the beta for the next stable version of Debian. With gLinux, that means it's based on the Debian 10 "Buster" test operating system. Google takes each Debian Testing package, rebuilds it, tests it, files and fixes bugs, and once those are resolved, integrates it into the gLinux release candidate. GLinux went into beta on Aug. 16, 2017.|
The James Webb Space Telescope has emerged from a large vacuum chamber that was home to temperatures of just 20 degrees Celsius above absolute zero. Scientists have reviewed the data and given the instrument a clean bill of health. "We now have verified that NASA and its partners have an outstanding telescope and set of science instruments," said Bill Ochs, the Webb telescope project manager at NASA's Goddard Space Flight Center in Greenbelt, Maryland. "We are marching toward launch." Ars Technica reports: The $10 billion telescope underwent tests inside Chamber A at Johnson Space Center, which was built in 1965 to conduct thermal-vacuum testing on the Apollo command and service modules. Beginning in mid-July, after the telescope was cooled down to a temperature range of 20 to 40 Kelvin, engineers tested the alignment of Webb's 18 primary mirror segments to ensure they would act as a single, 6.5-meter telescope. (They did). Later, they assessed the fine guidance system of the telescope by simulating the light of a distant star. The Webb telescope was able to detect the light, and all of the optical systems were able to process it. Then, the telescope was able to track the "star" and its movement, giving scientists confidence that the Webb instrument will work once in space. Webb still has a ways to go before it launches. Now that project scientists know that the optic portion of the instrument can withstand the vacuum of space, and the low temperatures at the Earth-Sun L2 point it will orbit in deep space, they must perform additional testing before a probable launch next year. |
An anonymous reader quotes Open Source Observatory:
The City of Barcelona is migrating its computer systems away from the Windows platform, reports the Spanish newspaper El País. The City's strategy is first to replace all user applications with open-source alternatives, until the underlying Windows operating system is the only proprietary software remaining. In a final step, the operating system will be replaced with Linux... According to Francesca Bria, the Commissioner of Technology and Digital Innovation at the City Council, the transition will be completed before the current administration's mandate ends in spring 2019. For starters, the Outlook mail client and Exchange Server will be replaced with Open-Xchange. In a similar fashion, Internet Explorer and Office will be replaced with Firefox and LibreOffice, respectively. The Linux distribution eventually used will probably be Ubuntu, since the City of Barcelona is already running 1,000 Ubuntu-based desktops as part of a pilot...
Barcelona is the first municipality to have joined the European campaign 'Public Money, Public Code'. This campaign is an initiative of the Free Software Foundation Europe (FSFE) and revolves around an open letter advocating that publicly funded software should be free. Currently, this call to public agencies is supported by more than 100 organisations and almost 15,000 individuals. With the new open-source strategy, Barcelona's City Council aims to avoid spending large amounts of money on licence-based software and to reduce its dependence on proprietary suppliers through contracts that in some cases have been closed for decades.
The oldest x86 CPU that the Linux kernel supports today is theoretically the 486. However is this theory actually true in practice? I decided to put this theory to the test in my project. |
His site describes installing Gentoo Linux on an "ancient" IBM PS/1 Consultant 2133 19C (released in 1993), with 64MB SIMM-72 RAM. (Though to speed things up, he compiled that minimal version of Gentoo on a modern Thinkpad T430 released in 2012.) "Due to the age of the PC, the BIOS only supports booting from the floppy drive or internal HDD," so there was also some disk partitioning and kernel configuration. ("Must disable 64-bit kernel for obvious reasons!") A half-hour video shows that it takes almost 11 minutes just to boot up -- and five and a half minutes to shut down. "Despite the many roadblocks I faced, I was impressed by the level of support Linux has for ancient hardware like this."
And there's one more added bonus. "Given the age of the 486 (1989 technology), it does not support branch prediction... Ironically this makes it safe from the Meltdown and Spectre attacks."
New submitter Jose Deras writes: Nearly 35 years ago, Apple released its first computer with a graphical user interface, called the Lisa. Starting next year, the Computer History Museum will release the Apple Lisa OS for free as an open-source project. According to a new report from Business Insider, the Computer History Museum will release the code behind the Apple Lisa operating system for free as open source, for anyone to try and tinker with. The news was announced via the LisaList mailing list for Lisa enthusiasts. |
"While Steve Jobs didn't create the Lisa, he was instrumental in its development. It was Jobs who convinced the legendary Xerox PARC lab to let the Apple Lisa team visit and play with its prototypes for graphical user interfaces," reads the report. "And while Apple at the time said that Lisa stood for 'Local Integrated System Architecture,' Jobs would later claim to biographer Walter Isaacson that the machine was actually named for his oldest daughter, Lisa Nicole Brennan-Jobs." "Then-Apple CEO John Sculley had Jobs removed from the Lisa project, which kicked off years-long animosity between the two," continues the report. "Ultimately, a boardroom brawl would result in Jobs quitting in a huff to start his own company, NeXT Computer. Apple would go on to buy NeXT in 1996, bringing Jobs back into the fold. By 1997, Jobs had become CEO of Apple, leading the company to its present status as the most valuable in the world."
"Systemd developers split the community over a tiny detail that decreases stability significantly and increases complexity for not much real value." So argues Nico Schottelius, talking about his experiences as the CEO of a Swiss company providing VM hosting, datacenters, and high-speed fiber internet. Long-time Slashdot reader walterbyrd quotes Nico's essay:
While I am writing here in flowery words, the reason to use Devuan is hard calculated costs. We are a small team at ungleich and we simply don't have the time to fix problems caused by systemd on a daily basis. This is even without calculating the security risks that come with systemd. Our objective is to create a great, easy-to-use platform for VM hosting, not to walk a tightrope... |
[W]hat the Devuan developers are doing is creating stability. Think about it not in a few repeating systemd bugs or about the insecurity caused by a huge, monolithic piece of software running with root privileges. Why do people favor Linux on servers over Windows? It is very easy: people don't use Windows, because it is too complex, too error prone and not suitable as a stable basis. Read it again. This is exactly what systemd introduces into Linux: error prone complexity and instability. With systemd the main advantage to using Linux is obsolete.
The essay argues that while Devuan foisted another choice into the community, "it is not their fault. Creating Devuan is simply a counteraction to ensure Linux stays stable. which is of high importance for a lot of people."
An anonymous reader quotes MarketWatch:
A group of global activists stormed and occupied several Apple Stores in France on Saturday in a move aimed at pressuring the company to pay up on a €13 billion ($15.5 billion) tax bill to the European Union. In a press release, the France unit of the Association for the Taxation of Financial Transactions and Citizen's Action organization (Attac), said 100 of its members occupied the Opera Apple Store in Paris, demanding the company pay its taxes... Attac said dozens of protests were organized at other Apple store locations throughout France on Saturday. In the Paris store, activists were seen via videos circulating on Twitter, pushing past security and hanging a banner that said "We will stop when Apple pays." Security in Paris reportedly evacuated Apple workers from the building as those protests began.
After three hours they left the store -- leaving behind protest messages on the iPads on display. The group claims that Apple has stashed $230 billion in tax havens around the world, but also hopes to raise awareness about other issues.
"Attac said the action was part of the #PhoneRevolt movement aimed at highlighting unfair practices by Apple, that are not just about taxes, but also pollution via extraction of metals for its phones, worker exploitation and driving a global consumption binge."
Slashdot reader overheardinpdx shares a video from the SC17 supercomputing conference where Bruce Tulloch from BitScope "describes a low-cost Rasberry Pi cluster that Los Alamos National Lab is using to simulate large-scale supercomputers." Slashdot reader mspohr describes them as "five rack-mount Bitscope Cluster Modules, each with 150 Raspberry Pi boards with integrated network switches."
With each of the 750 chips packing four cores, it offers a 3,000-core highly parallelizable platform that emulates an ARM-based supercomputer, allowing researchers to test development code without requiring a power-hungry machine at significant cost to the taxpayer. The full 750-node cluster, running 2-3 W per processor, runs at 1000W idle, 3000W at typical and 4000W at peak (with the switches) and is substantially cheaper, if also computationally a lot slower. After development using the Pi clusters, frameworks can then be ported to the larger scale supercomputers available at Los Alamos National Lab, such as Trinity and Crossroads. |
BitScope's Tulloch points out the cluster is fully integrated with the network switching infrastructure at Los Alamos National Lab, and applauds the Raspberry Bi cluster as "affordable, scalable, highly parallel testbed for high-performance-computing system-software developers."
An anonymous reader quotes CNET:
An Orbital ATK Antares rocket carrying a cubesat named Asgardia-1 launched from NASA's Wallops Flight Facility in Virginia early Sunday. The milk carton-sized satellite makes up the entirety of territory of the self-proclaimed "Space Kingdom" of Asgardia... Over 300,000 people signed up online to become "citizens" of the nation over the last year. The main privilege of citizenship so far involves the right to upload data to Asgardia-1 for safekeeping in orbit, seemingly far away from the pesky governments and laws of Earth-bound countries...|
As of now, Asgardia's statehood isn't acknowledged by any other actual countries or the United Nations, and it doesn't really even fit the definition of a nation since it's not possible for a human to physically live in Asgardia. Not yet, at least. The long-term vision for Asgardia includes human settlements in space, on the moon and perhaps even more distant colonies.
On Tuesday Orbital ATK's spacecraft will dock with the International Space Station for a one-month re-supply mission -- then blast higher into orbit to deploy the space kingdom's satellite. "Asgardia space kingdom has now established its sovereign territory in space," read an online statement.
Next the space kingdom plans to hold elections for 150 Members of Parliament.
"I was trained more as a linguist than a computer scientist," says Perl creator Larry Wall, "and some people would say it shows."
An anonymous reader describes Wall's new video interview up on InfoQ:
"With a natural language, you learn it as you go," Wall says. "You're not expected to know the whole language at once. It's okay to have dialects... Natural languages evolve over time, and they don't have arbitrary limits. They naturally cover multiple paradigms. There are external influences on style... It has fractal dimensionality to it. Easy things should be easy, hard things should be possible. And, you know, if you get really good at it, you can even speak CompSci."|
Wall also touched on the long delay for the release of Perl 6. "In the year 2000, we said 'Maybe it's time to break backward compatibility, just once. Maybe we can afford to do that, get off the worse-is-worse cycle, crank the thing once for a worse-is-better cycle." The development team received a whopping 361 suggestions -- and was also influenced by Paul Graham's essay on the 100-year language. "We put a lot of these ideas together and thought really hard, and came up with a whole bunch of principles in the last 15 years." Among the pithy principles: "Give the user enough rope to shoot themselves in the foot, but hide the rope in the corner," and "Encapsulate cleverness, then reuse the heck out of it.."
But Wall emphasized the flexibility and multi-paradigm nature that they finally implemented in Perl 6. "The thing we really came up with was... There really is no one true language. Not even Perl 6, because Perl 6 itself is a braid of sublanguages -- slangs for short -- and they interact with each other, and you can modify each part of the braid..."
Wall even demoed a sigil-less style, and argued that Perl 6 was everything from "expressive" and "optimizable" to "gradually-typed" and "concurrency aware," while supporting multiple virtual machines. He also notes that Perl 6 borrows powerful features from other languages, including Haskell (lazy evaluation) Smalltalk (traits), Go (promises and channels), and C# (functional reactive programming).
And towards the end of the interview Wall remembers how the original release of Perl was considered by some as a violation of the Unix philosophy of doing one thing and doing it well. "I was already on my rebellious slide into changing the world at that point."