Imagine having backups and not being on the testing branch of the beta version of a distro while running a custom kernel that is on alpha (Context, im on testing branch of fedora 39 beta with the asahi kernel)
this post was submitted on 28 Oct 2023
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Am I too NixOS to understand?
Or ZFS/btrfs snapshots. But yes, NixOS does it right.
Timeshift can make use of BTRFS snapshots btw
btrfs + snapper + pacman-hook = happiness
I just use btrfs and snapper.
I "use" it too. I don't really do anything, it came setup like this out of the box with my distro and it just does it's thing until I mess up hard.
I swear I used timeshift so much when using a NVIDIA card
Ditto.
- Install OS, timeshift.
- Get Nvidia, CUDA and CuDnn all playing together, timeshift.
- Install everything else safe in the knowledge that no matter how badly I break things at least I won't have to do step 2 again.
Or just like, you know, learn about what you did n fix it .-.
What's a good overview of time shift?
It makes a copy of your entire system automatically (and your home folder if you want it to) so, in the event that you break something and can't/don't want to fix it, you can go back to your most recent back-up from before you messed your system up. I've had to use it a few times because I installed some drivers for my drawing tablet that broke more than they fixed and I didn't want to deal with the pain in the ass of removing them and all of the dependencies they installed.
How is this different than a regular backup? Not salty, just curious.
I believe it's using a feature built-in directly in the filesystem.
I'm just curious if it's possible to browse individual snapshots like in MacOS Time Machine and fetch individual files out.
Now mind you, everything I write might be wrong, I am out of my depth here.
But as I understand a BTRFS snapshot is simply a (subvolume in which you will find) copy of the table that points to the actual files or, rather, blocks on your drive. As long as a table exists that points to a block, this block will persist.
The nature of BTRFS is Copy-on-Write so in your active snapshot, when you modify a file / block, a copy of it is created with the new version, referencing this new block on the filesystem table.
This is why BTRFS snapshots are fast and take little space by themselves, you do not need to actually copy all the data at the moment of creating the backup, rather when the data is modified and only that data.
Timeshift saves!
Oh the number of times that I have tweaked something only to only have to start over is too damn high!
When you use a journaled filesystem .... what are backups?
Timeshift worked exactly once for me, and by once I mean it messsd up my entire system so I had to install something else instead
If you don't test your restores, you don't actually have a backup. You have to test the config first to make sure it works for how your system is setup. An all defaults system should work out of the box, but if you start to alter and customize your system in ways that the backup is not configured to handle, you are in deep risk.
i hate tinkering so i would never do anything that disturbs the system itself, timeahift advertises itself as a backup system, never seen anywhere that said backup needs to be tested, whatever that even means. besides i shouldn't have to do that to begin with.
never seen anywhere that said backup needs to be tested
I don't know what to tell you, you must be really new, because recovery tests are the first thing that is said when discussing backups. It's the backbone of systems operations. If you don’t test your backups for recoverability, you really don’t have backups at all. is a widespread saying in the tech industry.
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Daily timeshift ftw!
When you have backup kernel:
Is that a problem?