So probably about a decade ago at this point I was working for free for a friend's start-up hosting company. He had rented out a high-end server in some data center and sold out virtualized chunks to clients.

This is back when you had only a few options for running virtual servers, but the market was taking off like a bat out of hell. In our case, we used User-Mode Linux (UML).

UML is essentially a kernel hack that lets you run the kernel in user space. That alone helps keep things separate or jailed. I'm pretty sure some of you can shed more light on it, but that's as I understood it at the time and I wasn't too shabby at hacking the kernel when we'd have driver issues.

Anyway, one of the ways my friend would on-board someone was to generate a new disk image file, mount it, and then chroot to that mount path. He'd basically use a stock image to do this and then wipe it out before putting it live.

I'm not sure exactly what he was doing at the time, but I got a panicked message on New Years Day saying that he had deleted everything. By everything, he had done an rm -fr /home as root on what he had thought was the root of a drive image.

It wasn't an image. It was the host server.

In the stoke of a single command, all user data was lost. We were pretty much screwed, but I have a knack for not giving up - so I spent a ton of time investigating linux file recovery.

Fun fact about UML - since the kernel runs in user space as a regular ol' process, anything it opens is attached to that process. I had noticed that while the files were "gone", I could still see disk usage. I ended up finding the images attached to their file pointers associated with each running kernel - and thankfully all customers were running at the time.

The next part was crazy, and I still think is crazy. I don't remember the command, but I had to essentially copy the image from the referenced path into a new image file, then shutdown the kernel and power it back on from the new image. We had configs all set aside, so that was easy. When it finally worked I was floored.

Rinse and repeat, I managed to drag every last missing bit out of /proc - with the only side effect being that all MySQL databases needed to be cleaned up.

devRant is awesome, but Disney also manages to light-up my day.
This is how Wall-E became a beloved member of our team, and helped me put a smile on my face throughout a very frustrating project.

It all started in a company, not so far far away from here, where management decided to open up development to a wider audience in the organization. Instead of continuing the good-old ping-pong between Business and IT...

'not meeting my expectations' - 'not stated in project requirements'
'stuff's not working - 'business is constantly misusing'
'why are they so difficult' - 'why don't they know what they really want'
'Ping, pong, plok... (business loses point) ping, pong'

... the company aimed to increase collaboration between the 2 worlds, and make development more agile.

The close collaboration on development projects is a journey of falling and getting back up again. Which can be energy draining, but to be honest there is also a lot of positive exposure to our team now.
The relevant part for this story is that de incentive of business teams throughout these projects was mainly to deliver 'something' that 'worked'. Where our team was also very keen on delivering functionality that is stable, scalable, properly documented etc. etc.
We managed to get the fundamentals in place, but because the whole idea was to be more agile or less strict throughout the process, we could not safeguard all best-practices were adhered to during each phase of a project. The ratio Business/IT was simply out of balance to control everything, and the whole idea was to go for a shorter development lifecycle.
One thing for sure, we went a lot faster from design through development to deployment, high-fives followed and everybody was happy (for some time).
Well almost everybody, because we knew our responsibility would not end after the collection of credits at deployment, but that an ongoing cycle of maintenance would follow. As expected, after the celebrations also complaints, new requirements and support requests on bug fixes were incoming.
Not too enthusiastic about constantly patching these projects, I proposed to halt new development and to initiate a proper cleaning of all these projects. With the image in mind of a small enthusiastic fellow, dedicated to clean a garbage-strewn wasteland for humanity, I deemed "Wall-E" a very suited project name. With Wall-E on board, focus for the next period was on completely restructuring these projects to make sure all could be properly maintained for the future.
I knew I was in for some support, so I fetched some cool wall papers to kick-start each day with a fresh set of Wall-E's on my monitors. Subsequently I created a Project Wall-E status report, included Wall-E in team-meetings and before I knew it Wall-E was the most frequently mentioned member of the team. I could not stop to chuckle when mails started to fly on whether "Wall-E completed project A" or if we could discuss "Wall-E's status next report-out". I am really happy we put in the effort with the whole team to properly deploy all functionality. Not only the project became a success, also the idea of associating frustrating activities with a beloved digital buddy landed well in our company. A colleagues already kickstarted 'project Doraemon', which is triggering a lot of fun content. Hope it may give you some inspiration, or at least motivate you to watch Wall-E!

PS: I have been enjoying the posts, valuable learnings and fun experiences for some time now. Decided to also share a bit from my side, here goes my first rant!

Short story for the one interessed in the image: when we change idea we change the whole idea. And it is likely to happen very often. Sometimes twice a day, every day, for a week.
Long stort:
I am hopeless:
I am an IT university student, i know how to program and how to search for a fucking manual, but i am dealing with eletronics and PCB...

I have to make the firmware for a board (atmel things) and it have to talk via spi with some other devices (it is slave of one, and master for all the others(i will use two spi channels)), this should be easy...
I am have no senior to ask to, all i have is google and i found problems in every thing i try to do, every - fucking - single - one!!!! I know that the solution is always of the "you have to plug it in" type, but
NEITHER GOOGLE IS BEING OF HELP!
Let me explain this morning pain:
i can't add libraries in atmel studio, something wrong with the asf wizard, i have only found a tutorial that says what buttons press to solve my problem... I DO NOT HAVE THIS BUTTONS!!!
And the library i wanted to add is the one to make the board talk with the computer on his COM port... (And have some debug message...)
And the wizard gives problem because i created the project using an online atmel tool...
YES, i tried to create a project with asf and then add the files given by the online tool.... THEY DO NOT COMPILE, I SHOULD HAVE TO MESS WITH A 400 LINES LONG MAKEFILE, that is anything but human readable...
I haven't even look for anything spi related this morning
I am even forced to use windows, because every question in the forums, or every noobbish tutorial is based on it...

And then i find the tutorial with the perfect title, holy shit this is the thing i truly need!!!!! It says how to open a file. And then stops. WHAT ABOUT THE THING YOU WERE TALKING ABOUT IN THE TITLE??????

This project is the upgrade of a glue-pump based on an atmega328 (arduino uno processor), that is currently being produced and sold by our "company" .... .... That is composed by me and the boss.
He is a very nice and and smart person, he tries to give me ideas for the solution, if i cannot find out how to do something we can even change a lot of specifics of the project (the image shows our idea-change) and every board has some weeks of mornings like the one described above (i work only in the morning).
I am learning a very lot of things...
But the fact that every thins i try fails is destroying me, what would you do in my place?

Ps. Lot lf love for the ones who made it until the end <3

Personal project: I design and build single-board computers with old processors like Z80, 6502 etc when I'm not being too lazy. A few run CP/M. One that's been more interesting in terms of digging deeper has been an 80C188, for which I've written a BIOS (despite the chip's built-in peripherals and interrupts being at non-standard addresses) mostly in C, which it can use to boot DOS from an image file on an SD card (bit-banged off the UART chip with FatFs). (Yes it's slow, but so is a 5.25" floppy.)

Work: My first project at my current job. Not particularly exciting compared to some stuff on here, but it got me into making useful contributions to the open-source CRM we used at the time. Was building a basic extension to deal with duplicated organisation names. So learned CiviCRM fairly deeply, a bit of Drupal, a bit of PHP. It's a shame we don't use that system any more, the community was cool.

Whelp. I started making a very simple website with a single-page design, which I intended to use for managing my own personal knowledge on a particular subject matter, with some basic categorization features and a simple rich text editor for entering data. Partly as an exercise in web development, and partly due to not being happy with existing options out there. All was going well...

...and then feature creep happened. Now I have implemented support for multiple users with different access levels; user profiles; encrypted login system (and encrypted cookies that contain no sensitive data lol) and session handling according to (perceived) best practices; secure password recovery; user-management interface for admins; public, private and group-based sections with multiple categories and posts in each category that can be sorted by sort order value or drag and drop; custom user-created groups where they can give other users access to their sections; notifications; context menus for everything; post & user flagging system, moderation queue and support system; post revisions with comparison between different revisions; support for mobile devices and touch/swipe gestures to open/close menus or navigate between posts; easily extendible css themes with two different dark themes and one ugly as heck light theme; lazy loading of images in posts that won't load until you actually open them; auto-saving of posts in case of browser crash or accidental navigation away from page; plus various other small stuff like syntax highlighting for code, internal post linking, favouriting of posts, free-text filter, no-javascript mode, invitation system, secure (yeah right) image uploading, post-locking...

On my TODO-list: Comment and/or upvote system, spoiler tag, GDPR compliance (if I ever launch it haha), data-limits, a simple user action log for admins/moderators, overall improved security measures, refactor various controllers, clean up the code...

It STILL uses a single-page design, and the amount of feature requests (and bugs) added to my Trello board increases exponentially with every passing week. No other living person has seen the website yet, and at the pace I'm going, humanity will have gone through at least one major extinction event before I consider it "done" enough to show anyone.

help

Made a node program that connects to a development board (like a raspberry pi) via rs232 and installs an image automatically.

I have had to work on a project with a pc104 stack running yocto. I have had this since December last year and the image has always just randomly crashed 🤔. Yesterday I found out why!!
I am able to read the sensor of the cpu temp this has never been over 60/70 degrees C (yes I am English), however after running multiple tests and finally hitting my last wits I made the Kernel output over serial as no msg was shown on crash.
The company we have got the HW from always said this board won't over heat it throttles the cpu blag bla bla... And you guessed it in the mid of nothing but mess was a message "thermal_zone0 critical temp 127 degrees shutting down"
I didn't know if I was happy or about to cry as I didn't know if after working on this project for the last 6months I was back to the drawing boards as I need new HW or my gut at the start of not trusting the Company we are using!

Needless to say I have no idea what Monday will bring, I will keep you all posted as we all do care!

Much love

Jim

I've been working on a new meme-platform / image-board with a friend for the past few months and we've just reached an working form with most of the basic functionality in place. Now we could use some memers to test the page and fill it with some content. If you love memes as much as we do we would be greatful if some of you could give it a try :)
You can find us under: soosig.me

Very excited, got my raspberry pi zero working over usb finally, gotta admit it took me a while to figure it out that the ifconfig IP assigned to the interface established isn't actually the raspberry pi's (seriously you don't want to see how far the visited google links go for all variations of "how to setup the otg ssh connection"), that only came to me once I was able to find the mini-hdmi to hdmi cable, before that it was a pure shitfest:

First I just tried all sort of configs, but the raspberry pi kept denying the ssh connection, slammed the microsd into my bigger Pi, even multiple times ran raspi-config, forced ssh to start in all possible ways, nothing.

Then I tried to use the TV-output on it together with my old small portable tv to maybe see some error-logs or the ssh not starting on the zero for whatever reason, even flashed a 2016 image thinking it is stretchs fault for not working, but then my fucking soldering iron cable disappeared, tried to quickly create my own, but that failed cause the 3.5mm connector it uses is different from the ones I had available, so I macgyvered a sketchy ass lose connection with male headers sticking through from the bottom and being sticked against the board with a female end on top, but the TV output wouldn't work, even with proper config options, so I gave up.

Some days later I've found the cable, connected it and realized the fucking IP it gets assigned is totally different from the interface, well fuck my life.

Atleast now I can make a clean image of that microSD and setup the portable laravel development raspi as I wanted, can't wait to try it once I get more time to fully set it up - btw even the internet bridge worked right out of the box, so I can easily use my laptops internet connection on the zero.

Learning to tech to speed up learning.
Using a new cooperative learning technique, AI Lab researchers cut by half the time it took a pair of robot agents to learn to maneuver to opposite sides of a virtual room.

A combination of deep learning and reinforcement learning algorithms are responsible for computers achieving dominance at challenging board games like chess and Go, a growing number of video games, including Ms. Pac-Man, and some card games, including poker. But for all the progress, computers still get stuck the closer a game resembles real life, with hidden information, multiple players, continuous play, and a mix of short and long-term rewards that make computing the optimal move hopelessly complex.

Image: Dong-ki Kim

Asked a question on SO,
Why is my Microcontroller (Android things IOT) not getting detected in my Mac to flash an image?

Someone commented:
Mac doesn't provide enough power to it.
(Really, I can see a green light on the board)