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JOB | Permanent Sysadmin (Netherlands or remote)
by James Tobin 06 Dec '17

06 Dec '17

Hello, I'm working with an employer that is looking to hire a permanent Linux sysadmin to become their expert on Hadoop and Kafka maintenance. This person can be based either at the Netherlands office or remote. Consequently I had hoped that some members of this mailing list may like to discuss with me further; off-list. I can be reached using "JamesBTobin (at) Gmail (dot) Com". Kind regards, James

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NCIX files for bankruptcy
by Evan Leibovitch 04 Dec '17

04 Dec '17

http://www.tomshardware.com/news/hardware-retailer-ncix-files-bankruptcy,36… - Evan (on mobile)

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cheap 3d printer?
by D. Hugh Redelmeier 27 Nov '17

27 Nov '17

Here's a thread about the printer I bought. We haven't used it yet so I cannot say how good it is. <https://forums.redflagdeals.com/amazon-ca-monoprice-select-mini-3d-printer-…>

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Raspberry Pi 3 Model B for $50 at Newegg.ca
by William Park 23 Nov '17

23 Nov '17

While shopping at Newegg.ca, I found <https://www.newegg.ca/Product/Product.aspx?Item=N82E16813300007&cm_sp=Homep…> -- William Park <opengeometry(a)yahoo.ca>

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For those familiar with RFC 1149 ;-)
by James Knott 23 Nov '17

23 Nov '17

https://www.arcamax.com/thefunnies/wizardofid/ https://tools.ietf.org/html/rfc1149

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HAF XB EVO case video details
by Russell 23 Nov '17

23 Nov '17

My earlier reply to William was short of the mark. The planar backplate is 1/2 way up the unit. I didn't even know it was removable. I this case it because it fits nicely where I want to put it. Here's a better description with views. https://youtu.be/6hMg4OWFWX8 -- Russell

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File larger than partition? (Docker-related)
by Giles Orr 22 Nov '17

22 Nov '17

I ran a backup today and noticed one file because it took so long to back up. I'm using FC25 on this machine, and used the OS packages of Docker. I seem to have a 100G file on a 12G partition: root@toshi7:/var/lib/docker/devicemapper/devicemapper# ls -lh total 34M -rw------- 1 root root 100G Oct 25 22:02 data -rw------- 1 root root 2.0G Oct 25 22:02 metadata root@toshi7:/var/lib/docker/devicemapper/devicemapper# df -h Filesystem Size Used Avail Use% Mounted on ... /dev/sda8 16G 12G 3.8G 75% / tmpfs 7.8G 776M 7.1G 10% /tmp /dev/mapper/home_crypt 237G 211G 24G 91% /home ... /var/ is part of / , not a separate partition. The file appears to be a plain file, not a link or device. How exactly did my backup process (rsync to an external hard drive) manage to back up 100G of data from a 12G partition? "docker info" contains some very interesting output: I've included that below. The most obvious/naive solution would simply be to exclude /var/lib/docker/devicemapper/devicemapper/ from my backups. Because I'm guessing I don't need a backup of the "Data loop file?" Is that correct? To my surprise, the file and its backup share an md5sum value - but then, I haven't touched docker in the intervening time. But I'd still really like to know either where it's storing 100G of data, or what's going on if it's not actually storing that much. It's very weird, and makes it awfully hard to calculate how big your backup will be when your partitions are evidently behaving like Tardises. Containers: 0 Running: 0 Paused: 0 Stopped: 0 Images: 8 Server Version: 1.12.6 Storage Driver: devicemapper Pool Name: docker-8:8-802519-pool Pool Blocksize: 65.54 kB Base Device Size: 10.74 GB Backing Filesystem: xfs Data file: /dev/loop0 Metadata file: /dev/loop1 Data Space Used: 27.79 MB Data Space Total: 107.4 GB Data Space Available: 4.943 GB Metadata Space Used: 618.5 kB Metadata Space Total: 2.147 GB Metadata Space Available: 2.147 GB Thin Pool Minimum Free Space: 10.74 GB Udev Sync Supported: true Deferred Removal Enabled: false Deferred Deletion Enabled: false Deferred Deleted Device Count: 0 Data loop file: /var/lib/docker/devicemapper/devicemapper/data WARNING: Usage of loopback devices is strongly discouraged for production use. Use `--storage-opt dm.thinpooldev` to specify a custom block storage device. Metadata loop file: /var/lib/docker/devicemapper/devicemapper/metadata Library Version: 1.02.136 (2016-11-05) Logging Driver: journald Cgroup Driver: systemd Plugins: Volume: local Network: null host bridge overlay Swarm: inactive Runtimes: oci runc Default Runtime: oci Security Options: seccomp Kernel Version: 4.12.11-200.fc25.x86_64 Operating System: Fedora 25 (Twenty Five) OSType: linux Architecture: x86_64 Number of Docker Hooks: 2 CPUs: 8 Total Memory: 15.56 GiB Name: toshi7 ID: TJAV:PKWI:UYK2:UGAQ:GHUP:2HDO:4RBD:U54O:X7DM:SUPY:WQAM:IFTX Docker Root Dir: /var/lib/docker Debug Mode (client): false Debug Mode (server): false Registry: https://index.docker.io/v1/ Insecure Registries: 127.0.0.0/8 Registries: docker.io (secure) -- Giles https://www.gilesorr.com/ gilesorr(a)gmail.com

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Repair recommendation?
by Peter King 18 Nov '17

18 Nov '17

I woke up this morning to the beeping of my UPS informing me that my desktop computer had blown a fuse. Which it keeps doing. Right now I'm hoping it's the power supply (though there doesn't seem to be that distinctive smell in the air), but I don't have time to fix it myself. It was built for me at Filtech, which no longer exists, unfortunately. Anyone have any suggestions for an honest and reliable repair shop? -- Peter King peter.king(a)utoronto.ca Department of Philosophy 170 St. George Street #521 The University of Toronto (416)-978-3311 ofc Toronto, ON M5R 2M8 CANADA http://individual.utoronto.ca/pking/ ========================================================================= GPG keyID 0x7587EC42 (2B14 A355 46BC 2A16 D0BC 36F5 1FE6 D32A 7587 EC42) gpg --keyserver pgp.mit.edu --recv-keys 7587EC42

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GameShell: The Hackable Handheld Retro Gaming System
by Scott Elcomb 16 Nov '17

16 Nov '17

Thought this might be of interest to some on the list. "GameShell is the world's first modular, portable game console with a GNU/LINUX embedded operating system. It allows you to play thousands of classic games from Atari, GB, GBA, NES, SNES and many of history’s greatest consoles." It has a modular gameboy-like form factor based on Clockwork Pi (Quad Core A7), 512MB RAM and a 2.7in RGB display. The expected delivery date is in April 2018. The Super Early Bird price is $89.00 (+ $10.00 for shipping to Canada) which is about $50 less than the expected retail price. <https://www.kickstarter.com/projects/954662076/gameshell-redefine-retro-gam…> -- Scott Elcomb @psema4 http://www.pirateparty.ca/

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Presentation notes
by Alex Volkov 16 Nov '17

16 Nov '17

Hello all, Here's the notes & references from my presentation from Tuesday. * Presentation -- https://github.com/avolkov/2017-11-14-3d-printing/blob/master/main_script.r… * Prusa i3 MK2 assembly manual -- http://manual.prusa3d.com/c/Original_Prusa_i3_MK2_kit_assembly * Tom's guide (youtube list) -- https://www.youtube.com/watch?v=oVWLpvekby0&index=1&list=PLDJMid0lOOYkdh8jC… * Tom's guide (bill of materials) -- https://toms3d.org/2017/02/23/building-cheapest-possible-prusa-i3-mk2/ * Misumi linear rods/bearings -- http://manual.prusa3d.com/Answers/View/278/X%2C+Y%2C+Z+assembly+Rod+lengths Alex.

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