this post was submitted on 21 Feb 2025
182 points (99.5% liked)

Linux

52855 readers
240 users here now

From Wikipedia, the free encyclopedia

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.

Rules

Related Communities

Community icon by Alpár-Etele Méder, licensed under CC BY 3.0

founded 5 years ago
MODERATORS
 

I hear this is a rite of passage. I made it 4 weeks before I rekt all my shit (it was nvidia related). Where do I claim my sticker?

In all seriousness, now that I understand better these commands that I've been haphazardly throwing around, Id like to do a clean install. God knows what else Ive done to it. Can i just reinstall to my root partition and have my home partition work as expected?

top 50 comments
sorted by: hot top controversial new old
[–] [email protected] 58 points 1 month ago (4 children)

My first adventure in Linux back in 2003. No idea how I achieved this, but from memory I just reinstalled and all was well.

[–] [email protected] 32 points 1 month ago

i for one welcome our grub bootlorders

[–] [email protected] 26 points 1 month ago (1 children)
[–] [email protected] 10 points 1 month ago
[–] [email protected] 16 points 1 month ago

"AI is gonna take over the world"

Grub: "Hold ma beer"

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

Mr Torvald, I don’t feel so well.

[–] [email protected] 37 points 1 month ago

One of us. One of us

[–] [email protected] 28 points 1 month ago (5 children)

(it was nvidia related)

lel we got 'im, boys. /s

load more comments (5 replies)
[–] [email protected] 26 points 1 month ago (1 children)

Migrating a 8 year old server to fresh new hardware. Can't believe you can basically just rsync one computer to another

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

You can indeed.

[–] [email protected] 16 points 1 month ago* (last edited 1 month ago) (1 children)

TimeShift. Life saver, and great tool for learning without having to worry about breaking shit permanently.

[–] [email protected] 15 points 1 month ago (1 children)

the truest form of Linux, without all the GNU bloat, well done! :)

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

I'd like to interject here...

[–] [email protected] 15 points 1 month ago

I feel your pain 😅🫠

Yeah, just to add another confirmation to the other comments, if you have a separate home partition you can reuse it with a new / partition and expect it to work fine. The only stuff that gets saved in your home folder is comfiguration files for your apps, along with whatever actual files you have stored. You can even swap distros (Ubuntu/Arch) and keep your home folder, though sometimes the config files and settings don't translate perfectly.

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

Does anyone sell 'Yes, Do As I Say!' stickers?

You could possibly recover from that on console, just install few metapackages. And have backups.

[–] [email protected] 7 points 1 month ago (2 children)
[–] [email protected] 3 points 1 month ago

Dammit, my organic memory failed yet again. It's been a while since I've seen that prompt (and I have agreed to that as well at least few times).

load more comments (1 replies)
[–] [email protected] 11 points 1 month ago (1 children)

If you don't mess with the partitions during the install and don't format, and make the same username, you should be back to normal after a reinstall. Take a backup offline, of course.

[–] [email protected] 6 points 1 month ago* (last edited 1 month ago)

make sure not to reformat though. it can be a problem depending on the installer his distro uses.

i think its safer to just save the home folder, and replace it later when the system is installed.

[–] [email protected] 9 points 1 month ago

Ahh, baby steps.

Around fours years ago I was still using Arch and I somehow decided to try LFS on my main machine (bare metal unfortunately). Started compiling coreutils but as I forgot to specify the build directory to gmake, my /usr/bin directory was being emptied to make space for the coreutils compilation process. Bricked my whole installation.

Now I'm smarter than four years ago as I mainly use NixOS.

[–] [email protected] 9 points 1 month ago

Nice, you get a sticker!

[–] [email protected] 9 points 1 month ago (5 children)

Reinstall using btrfs as the root files system and enable automatic snapshots. The data on your home partition will be fine, just make sure the installer doesn't format it.

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

More technology does not fix daft manoeuvres! You do learn by your mistakes but keep the environment as simple as possible and add complexity later. Just like I didn't back in the day! Mind you we lived in greyscale back then.

I've been a Linux sysadmin (and I have a lot of customers) for around 25 years now and only during the last 18 months have I bothered with something funky like ZFS - Proxmox is why and that's thanks to Broadcom deciding to fuck up VMware. I have done a lot of migrations and many more to follow. BTRFS is coming along but it is not for me quite yet.

Backups are golden. Even a simple rsync of /home and /etc to a USB stick or two will do for starters. If you want a challenge then try getting the Veeam agent for Linux working, with secure boot. I suggest not yet (secure boot). However, Veeam do a community edition which is free for 10 workloads (VMs/agents). I recently recovered a HP laptop running Home Assistant to a Thinkpad and everything just worked apart from the network, which is pretty reasonable and it took about 20 minutes.

So, I suggest that you get your backups in order first and then you can muck about with confidence. If you have some time and energy then do have a go at Gentoo and/or Arch. I ran Gentoo as my daily driver for some years and now I never fear anything IT related.

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

Better yet, backup /home to a separate disk and replace after install.

load more comments (3 replies)
[–] [email protected] 9 points 1 month ago
[–] [email protected] 8 points 1 month ago

If anything can be salvaged, I'd suggest backing those up, and then proceeding to make a fully fresh install. That will ensure you don't come across issues inherited from the previous blunders, and also, I think, will give you the chance to take the same steps, but wiser than before, and so able to avoid the issues you either caused or came across. (Also something I'd recommend maybe around every 1~2 years, precisely because of being able to restart but wiser)

[–] [email protected] 8 points 1 month ago

Yeah but, you're a towel.

[–] [email protected] 8 points 1 month ago

If you are trying a new install go for something with timeshift or Silver Blue, OpenSUSE snapshotting. You can trash the whole setup, then reboot to the previous state. A catastrophic failure becomes a 1 minute fix.

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

Recently upgraded a laptop that had been on the shelf for 5 years up to latest version. Flawless one-step upgrade! nixos. Things never get in a tangle where installing and uninstalling packages leaves random artifacts behind. If you saved it to version control, you can return to a past system configuration and the only thing different is your home directory data.

And yes, if you have a home partition and root partition, that's exactly what you can do. That's the beauty of that approach. But back it up!

[–] [email protected] 7 points 1 month ago* (last edited 1 month ago)

Last week I accidentally overwrote my configuration.nix file with garbage. If you use NixOS this should fill you with horror. If you don't, that file contains a description of your entire system -- all the packages as well as many settings tweaks to anything from GUI apps to core kernel & systemd options.

I have now learned my lesson and started using git to track my changes. Tbh, I was naively expecting to be able to roll back to a previous config and pull out my configuration file, but that's not how it works. Happily I had already split out the most difficult to reproduce sections into their own files (mostly networking stuff), so it wasn't that catastrophic, but it still turned a few minutes of tinkering into a couple hours of forehead-smacking.

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

Couple days ago I accidentally removed a package, not fully understanding what would happen. Ended up logging out thinking nothing of it. Couldn't log back in as there were zero sessions available. Also, for some reason a huge on-screen keyboard kept popping up a lot when I'd click on the login panels things.

I am very grateful my distro came with Timeshift by default and that I had a backup from the day before to fix everything. Also glad Rescuezilla allowed me to install Timeshift and restore.

Doesn't matter who you are or what you believe, it's definitely a rite of passage to break your system once. That is something I'll always agree with.

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

Congratulations OP!

About a year and a half ago I nuked my root partition with sudo rm -rf /*. Fun times.

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

That’s just how you unlock the hidden boss fight.

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

Welcome to the club, here's your penguin 🐧

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

On the bright side, it's never been a better time to switch to an immutable distro...

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

I'm not clear what you've done here, but I've never played with the purge command. I take it you removed a lot of basic packages. How did it happen? Wildcards?

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

I can't entirely recall the precise details now, but I was trying to uninstall Nvidia and Mesa packages to fix some driver issues. Some mesa-related packages were remaining, and I couldn't figure out why, so I manually typed their names in and purged them, then proceeded to watch python, the desktop environment — everything — all uninstall haha.

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

It was all just bloat anyways, who needs anything besides a kernel?

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

It's a pure Linux system now! No GNU!

load more comments (1 replies)
[–] [email protected] 5 points 1 month ago

Lol Nvidia has quiet the reputation in the Linux world. Keep at it though. We all make mistakes.

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

Back the hell up. Seriously. I cannot overstate how peaceful life is when your ass is properly covered.

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

This is my favorite song about proper Linux practices: https://youtu.be/WpQrAbkM3dI

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

Try to fix it.

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

FWIW each new install is faster, especially if you write down the "weird" steps.

[–] [email protected] 3 points 1 month ago (1 children)

I accidentally interrupted a system upgrade, breaking networking and package manager, among other important bits

load more comments (1 replies)
[–] [email protected] 3 points 1 month ago

Can i just reinstall to my root partition and have my home partition work as expected?

Yes, but you might have to muck around with /etc/fstab. The reason is because when you install to your root partition, the installer will create a new /home in that root partition. (Unless you have an installer that's smart enough that you can tell it otherwise.)

You should be able to mount the partition in any case, but to have the system recognize it as /home it has to be properly set up in fstab.

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

I've done the same thing (Nvidia related) on a machine hooked up to an expensive scientific instrument. Didn't get any other work done that day... Ugh.

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

Yes.

I wouldn't do it without tests and "enough" experience.

I would backup first.

Then I would install an atomic distro because I wouldn't want to care about this ever again

load more comments
view more: next ›