this post was submitted on 26 Jul 2023
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Linux

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Linux is a family of open source Unix-like operating systems based on the Linux kernel, an operating system kernel first released on September 17, 1991 by Linus Torvalds. Linux is typically packaged in a Linux distribution (or distro for short).

Distributions include the Linux kernel and supporting system software and libraries, many of which are provided by the GNU Project. Many Linux distributions use the word "Linux" in their name, but the Free Software Foundation uses the name GNU/Linux to emphasize the importance of GNU software, causing some controversy.

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It's not really a big deal, but I am currently writing this using a linux kernel I compiled from source, which certainly feels like an accomplishment. The Arch Wiki has made the process fairly easy to follow. I just took the stock Arch Linux configuration without changes for now.

The most important part of this is of course that I have the option to do that, to take the source code of this incredible project and build my own kernel binary.

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[–] [email protected] 50 points 1 year ago

That we can make software unique to our needs is one of these best parts of software freedom. Good for you!

[–] [email protected] 27 points 1 year ago

Maybe it's not a big deal.. But I still remember the first time I compiled the Linux kernel. It feels good. Well done!!

[–] [email protected] 22 points 1 year ago (1 children)
[–] [email protected] 4 points 1 year ago

8MB for an entire thing running a web server.

Mind: blown

[–] [email protected] 21 points 1 year ago

This is the best part of free/libre/open-source software. Even if you would never want or need to compile software yourself, the fact that you have the option to do so, and the opportunity to learn how the software works, is what makes FLOSS superior to proprietary software IMO.

I just compiled Handbrake from source a few minutes ago, and I know how you feel. Best of luck in your future code-compiling endeavors.

[–] [email protected] 19 points 1 year ago (2 children)

How long did it take to compile?

[–] [email protected] 27 points 1 year ago (2 children)

I didn't really keep track, but I would estimate around 10-15 minutes on a Ryzen 5800X.

[–] shadesdk 26 points 1 year ago (1 children)

I compiled my first Linux kernel back in the mid 90s, mostly on 386 and Dec Alpha hardware, interesting enough both were not that much slower than what you mentioned, I think the alpha (a measly 21066) took about 40 minutes. If you had asked me back then, I’d probably have imagined a minute or two, 30 years later. Guess it says something about how much larger the Linux kernel has become.

[–] [email protected] 7 points 1 year ago

That just brings me back to starting the compile, getting something to eat, doing chores, and whatever else. Then when it was finally done, booting it up only for it to not boot because I forgot some checkbox. Repeat a couple of times. Nights getting the thing working. And then on the next kernel release, trying to make sure I remembered all the checks because it didn't let you export the current config back then.

[–] [email protected] 5 points 1 year ago

Last time I compiled a kernel it was on a bus-overclocked K6-3/500 (higher bus, lower multiplier).

[–] [email protected] 6 points 1 year ago

not OP but on my i7 7700K a fully-featured kernel takes about 2 hours or so to compile. if i minimize the kernel to only the modules i need i can get it down to 20-30 minutes (clean). incremental compiles barely hit 5-10 mins

overall not a big deal, especially compared to something like firefox (or god forbid chromium). or gcc with pgo (which is technically cheating because it compiles itself 3 times if you enable pgo)

[–] FartsWithAnAccent 14 points 1 year ago* (last edited 1 year ago)

Congratulations on being awesome. ^Keep^ ^that^ ^shit^ ^up.^

[–] [email protected] 12 points 1 year ago
[–] [email protected] 7 points 1 year ago (1 children)

It's not the compiling that kernel is hard - ironically, it's one of the easiest things in the whole ecosystem to compile, got great tooling. It's breaking down the mental barrier of something that you thought would be hard, but turns out to be completely within your grasp. Great work, keep it up, and never be afraid to keep pushing onwards.

[–] [email protected] 2 points 1 year ago

Yes, that was my experience as well. And of course there is the added tension that if you mess up somehow your system might become unbootable.

[–] [email protected] 7 points 1 year ago
[–] GenBlob 6 points 1 year ago

Nice! After the first time you get the hang of it but keep in mind, If you do make your own config you will have to recompile your kernel for any hardware that isn't automatically enabled in the config like graphics, touchpad, tablets, and other peripherals you will plug into your computer. Reading up on what hardware you have helps a lot but I still manage to forget something when I have to create my own config. Thankfully you can just transfer your config to the next kernel instead of creating it all over again.

[–] [email protected] 6 points 1 year ago (1 children)

Congrats! Keep this kind of mindset if you can, even later in life. It will continue to take you farther in life than you would imagine.

[–] [email protected] 3 points 1 year ago

Yep. The mindset will take you much further than the kernel itself.

[–] [email protected] 5 points 1 year ago (1 children)

Nice! I also compiled the kernel multiple times when I used Gentoo back in mid 00's. It may not be a big deal as such, but I feel kind of good being able to say I've done it.

Next challenge: write your own kernel.

[–] [email protected] 2 points 1 year ago

I installed gentoo from stage 1 or maybe 2 back in the day... it compiles to compiler to compile the rest of the build process and then compiles the kernel and base... quite fascinating but it took about 3 hours on the hardware I was using.

[–] [email protected] 4 points 1 year ago

Now this is what gives a man the feeling of power.

[–] [email protected] 3 points 1 year ago* (last edited 1 year ago)

Surely this is a feat of engineering on Arch. But in NixOS, this is just Monday. 😉

[–] [email protected] 2 points 1 year ago (1 children)

That's certainly nothing to shake a stick, OP! Very well done. The last time I compiled a kernel was back in 1999 with Slackware. If I remember correctly it was a version previous to 7.

[–] [email protected] 4 points 1 year ago* (last edited 1 year ago)

I have vague memories around that time of doing it, I think it took 3 days to compile IIRC.

Or maybe I'm thinking of early Gentoo installs...

[–] [email protected] 2 points 1 year ago

A feat I have yet to achieve, and I have been using Linux since Yiggdrasil.

[–] AlmightySnoo 2 points 1 year ago

The Arch Build System also makes it very easy to apply patches. This allows you for example to try fixes before they get merged.

[–] [email protected] 2 points 1 year ago

Fun times. Always keep a fallback kernel installed. Even if you're not compiling your own.

I had to learn what chroot is when I borked my own kernel compile and there wasn't fallback.

[–] [email protected] 1 points 1 year ago

Wow, well done. I haven't done that in like 20 years!

[–] [email protected] 0 points 1 year ago (1 children)

Can I ask what are your pc specs , and how long did it take? + do you have a degree in computer science or prior knowledge of compiling code?

[–] [email protected] 2 points 1 year ago

It took roughly 10-15 minutes on a Ryzen 5800X with 32GB RAM. I have compiled other programs before, but none nearly as large and notable as the kernel. I am in fact very close to getting a computer science degree, but that is in no way required to be able to do this. If you are able to follow the wiki-page I linked, you can do it too.

[–] [email protected] 0 points 1 year ago (1 children)

I feel like compiling your own kernel officially makes you not a normie. So... Welcome to the club!

[–] [email protected] 1 points 1 year ago* (last edited 1 year ago)

Hey, I did compile my kernel so I'm part of the club!

But now that I think about it, the last time was 20 years ago and it's because it was the only way to get my sound card and network card working...

[–] [email protected] -4 points 1 year ago

Please contribute to Pine64. As a consumer I really want Linux phones to go mainstream.

[–] [email protected] -4 points 1 year ago

I hope it was in an airgapped environment.

[–] [email protected] -4 points 1 year ago (1 children)
[–] [email protected] 3 points 1 year ago
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