Post 9iGvf7OQ036qzcZHKy by stjohn@jank.town
(DIR) More posts by stjohn@jank.town
(DIR) Post #9iGlnLd9wtYhvRkTJI by poetgrant@fosstodon.org
2019-04-28T14:54:45Z
0 likes, 3 repeats
@DistroJunkie asked me a question and I wanted to try out the polling feature.So, of the Linux peeps, have any of you ever compiled your own kernel?[ ] Yes[ ] No[ ] What's Compile Mean?
(DIR) Post #9iGvf7OQ036qzcZHKy by stjohn@jank.town
2019-04-28T15:33:42.950101Z
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@DistroJunkie @poetgrant Yes! I've tried it as a hobby or to try and get a slightly faster or more optimized system. Neither of those ever went anywhere — the kernel that comes pre-compiled with your distro is already optimized more than I can accomplish with my level of experience. I've also done it because I had to patch the kernel source with various machine-specific drivers for my Cobalt Qube, and that was a whole bunch of fun but it worked. I still run a custom kernel on that machine.
(DIR) Post #9iGvf85JQZQ98edXCC by poetgrant@fosstodon.org
2019-04-28T15:36:22Z
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@stjohnI need to try it again with my current Slackware setup. I bet I could optimize it... maybe. I have never really truly understood everything that goes into the kernel stuff. I mainly spent most of my time reading logs and message boards, then trying the kernel again and again. Hehehe most of the time I didn't know what I did that made the system load faster or slower.@DistroJunkie
(DIR) Post #9iGvf8l8v2shEOCwOe by stjohn@jank.town
2019-04-28T15:40:24.827979Z
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@DistroJunkie @poetgrant Most things are already compiled as modules, so you probably won't make it faster by excluding drivers you don't need (it will compile faster, but won't run faster). I thought I could get some extra performance by choosing a specific CPU architecture in the configuration and compiling it with the right flags, but for some reason that still feels slower than the pre-compiled kernel. If you figure out some magic compiler flags that make it run faster, please let me know! Maybe disable the Spectre mitigations :P
(DIR) Post #9iGvf9HOz6gYqRIhg8 by poetgrant@fosstodon.org
2019-04-28T15:41:55Z
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@stjohnOh man, I bet that would speed the crap out of it! Bahaha... but at what cost? I was going to mess with it tonight in celebration of cracking a BIOS password for the first time in my life. 😃@DistroJunkie
(DIR) Post #9iGvf9bxkf8FsCv7j6 by stjohn@jank.town
2019-04-28T16:09:10.254694Z
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@DistroJunkie @poetgrant Oh you cracked a BIOS password? Nicely done! How did you manage that?I'd be curious to find out how probable a Spectre exploit actually is. Like if I disable the Spectre mitigations, am I really going to get pwned?
(DIR) Post #9iGvf9pmvGBuZ5OAHA by poetgrant@fosstodon.org
2019-04-28T16:46:23Z
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@stjohnOh you know... I don't think an attacker needs physical access to your computer... they just need you to interact with their JavaScript injections... that sucks. So we definitely need the mitigation until RISC-V releases a computer for us to buy. 😃I was thinking in my lizard brain and it looks like this virus stuff would be a perfect time for spy agencies to install some fun spy software via pressure on Intel. It is a perfect setup for it - 1/2
(DIR) Post #9iGvfcOqiUsF9w0YoS by poetgrant@fosstodon.org
2019-04-28T16:46:25Z
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@stjohn @DistroJunkie I try not to be a conspiracy theorist anymore (that was the 'old me'), but it looks just like a sort of setup that the CIA and MI5 might run together. Hmm... someone pull me back into the Matrix! I don't like it out here! I just want my steak dinner and perfect lawn!@DistroJunkie - 2/2
(DIR) Post #9iGxSxXizmcCsSFcWW by Simon@ubuntu.social
2019-04-28T17:06:36Z
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@poetgrantYes in Debian (pre Ubuntu) days to get some extra features for iptables. Never needed or tempted since.@DistroJunkie
(DIR) Post #9iH1vyXCmsHgAR6DhY by Wolf480pl@niu.moe
2019-04-28T17:56:41Z
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@poetgrant @DistroJunkie The first time I compiled a kernel was when I needed newer radeon drivers with OpenGL 3.0 support on Linux Mint. I didn't know what I was doing, I was just following the tutorial, but the kernel compiled and worked correctly.The second time was when I was patching drivers for touch buttons on my laptop. I downloaded Arch's PKGBUILD for kernel, modified the source, and built it with makepkg, with Arch's default config. It worked fine too.
(DIR) Post #9iH25TVoyy9Oqhyvom by Wolf480pl@niu.moe
2019-04-28T17:58:24Z
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@poetgrant @DistroJunkie Third time was part of Advanced Operating Systems course, when we were supposed to build the latest kernel on the VM, so that we can modify it later as part of the labs/assignments.In all 3 situations, I used a config from someone else.Never really tried messing with make menuconfig.
(DIR) Post #9iH2AII08VkxUQocHw by leyonhjelm@freespeechextremist.com
2019-04-28T17:59:18.864790Z
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@Wolf480pl @DistroJunkie @poetgrantI'm sorry you missed out on early Gentoo. What a glorious way to learn linux administration.
(DIR) Post #9iH2LBoGZFdeZy6PnE by Wolf480pl@niu.moe
2019-04-28T18:01:15Z
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@leyonhjelm @DistroJunkie @poetgrant Sorry I'm not sorry.
(DIR) Post #9iH2pKzuyIUBlKvbw8 by eju@fosstodon.org
2019-04-28T18:06:40Z
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@poetgrant @DistroJunkie Yes, on #gentoo with all features compiled in:~ du -h /boot/vmlinuz*5.0M /boot/vmlinuz-4.19.27-gentoo-r1
(DIR) Post #9iHBGRgqzpMDyGRqYC by kev@fosstodon.org
2019-04-28T19:40:58Z
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@poetgrant @DistroJunkie not me. I don’t think that’s Ben necessary for most people for a very long time. Great question, though!
(DIR) Post #9iHBX3zaMELhOd8LkO by gsora@bsd.network
2019-04-28T19:44:11Z
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@poetgrant @DistroJunkie yes indeed, for embedded applications. And Gentoo :-)
(DIR) Post #9iHEu9K10a4wRrOCo4 by tuxdevices@fosstodon.org
2019-04-28T20:21:58Z
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@poetgrant @DistroJunkieSeveral times on the strangest devices, with mixed results, but never on x86 or devices which already had a working one. Because I'm too lazy to change what already works on my home computer
(DIR) Post #9iHG5c8UJoMKxA1ojQ by cigarBGuitarEfx@fosstodon.org
2019-04-28T20:35:16Z
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@poetgrant @DistroJunkie Along with several Gentoo installs, I did very early on in my Linux life. I was still on Ubuntu 14.04 and coming from Windows, I didn't understand what a repository was, and how the distribution handles your packages. I just thought that you were always supposed to have the latest kernel, made sense to me. So I downloaded, compiled and installed the latest kernel on it. It was a great experiment and ran fine. Didnt last long because I moved on to Mint shortly thereafter.
(DIR) Post #9iHJisHwUuH6CnrZR2 by finlaydag33k@social.linux.pizza
2019-04-28T21:15:59Z
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@poetgrant I do still have it on my "bucketlist" but I don't see much use for me personally honestly...
(DIR) Post #9iHli7192yxkJWQmIK by eastd@fosstodon.org
2019-04-29T02:29:35Z
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@poetgrant @DistroJunkie, sure did and no I don't miss doing it, not one iota.
(DIR) Post #9iIKopmD2l6TGUNyF6 by ckoul@fosstodon.org
2019-04-29T09:02:59Z
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@poetgrant @DistroJunkie Several times, but mostly in the nineties.. :tuxotherwhite:
(DIR) Post #9iJjnKvmvtlvK1D00O by nerd7473@fosstodon.org
2019-04-30T01:17:32Z
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@poetgrant @DistroJunkie No, I haven't but intend to after I pass my LInux+ and LPIC certifications.
(DIR) Post #9iJwURuk2odQsj2k9Q by CharredStencil@freeradical.zone
2019-04-30T03:39:49Z
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@poetgrant @DistroJunkie Thankfully never needed to. I use GNU/Linux for the freedom and privacy, and I only tinker in userspace.
(DIR) Post #9iLVStNmdas332a2VM by erikstl@fosstodon.org
2019-04-30T21:46:19Z
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@poetgrant @DistroJunkie Yes.In 2002.So at this point, I probably should have responded "What's compile mean?"
(DIR) Post #9iN5PfdN5aBJ2xaulk by Zykino@shelter.moe
2019-05-01T16:03:54Z
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@poetgrant @DistroJunkie Look like it answered yes... It bugged on my app and my answer was no, never. I don't know which good I can have doing it. At which risk/cost.You may have asked peoples who did it if they did it in the dinosaur age of Linux or recently 🤔
(DIR) Post #9iNPor2Mys2CplZcKO by RandomDamage@mastodon.technology
2019-05-01T19:48:04Z
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@stjohn @DistroJunkie @poetgrant the attacker has to have permission to run code on your machine to exploit the vuln.I believe I saw a JS implementation a few weeks after the initial announcement, so I'm not going to be the first one to turn Spectre mitigation off.
(DIR) Post #9iNPos4X8JMM2larL6 by poetgrant@fosstodon.org
2019-05-01T19:52:33Z
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@RandomDamageThat is good to know. I need to read more on it... just in case... hehehe I tend to do things too quickly and end up in trouble.@stjohn @DistroJunkie
(DIR) Post #9iNQrvfAL4040GkYrI by RandomDamage@mastodon.technology
2019-05-01T20:04:19Z
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@poetgrant @stjohn @DistroJunkie it could be useful. My understanding is that the mitigation patches are only partial protection anyway.
(DIR) Post #9iOH8LAYTCLNMLZwtE by murtezayesil@fosstodon.org
2019-05-02T05:49:58Z
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@poetgrant @DistroJunkie I want to give Linux From Scratch a try after final exams.
(DIR) Post #9iR15JmPeojBFM4utk by poetgrant@fosstodon.org
2019-05-03T13:34:17Z
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@DistroJunkieSo it's official, I was wrong. More people than not have compiled their own kernel. How cool is that?Although, with 149 votes, I guess this poll isn't authoritative. 😃😃
(DIR) Post #9iR2cLhVdVjEiN6CGm by Wolf480pl@niu.moe
2019-05-03T13:51:27Z
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@poetgrant @DistroJunkie that's still a lot of votes for a fedi poll IMO.But you also need to keep in mind what kinda audience you have :P.
(DIR) Post #9iR8P4wlDQ8oiIHvMm by sean@social.sdoconnell.net
2019-05-03T14:56:16Z
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@Wolf480pl @poetgrant @DistroJunkie Sample bias, definitely. Ask the same poll on /r/linux and you'd probably get 10/80/10.
(DIR) Post #9iR8gQc3ukvOpgsaUS by Wolf480pl@niu.moe
2019-05-03T14:59:25Z
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@sean @poetgrant @DistroJunkie I wonder what'd happen if kawen made a poll like this
(DIR) Post #9iR8n7GoEFVgrx7yTo by guyjin@social.librem.one
2019-05-03T15:00:25Z
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@poetgrant @DistroJunkie I don't see a poll? Did it expire, or is this an instance specific feature?