537
CrowdStrike offers a $10 apology gift card to say sorry for outage
(techcrunch.com)
you are viewing a single comment's thread
view the rest of the comments
view the rest of the comments
this post was submitted on 24 Jul 2024
537 points (98.7% liked)
Technology
34899 readers
366 users here now
This is the official technology community of Lemmy.ml for all news related to creation and use of technology, and to facilitate civil, meaningful discussion around it.
Ask in DM before posting product reviews or ads. All such posts otherwise are subject to removal.
Rules:
1: All Lemmy rules apply
2: Do not post low effort posts
3: NEVER post naziped*gore stuff
4: Always post article URLs or their archived version URLs as sources, NOT screenshots. Help the blind users.
5: personal rants of Big Tech CEOs like Elon Musk are unwelcome (does not include posts about their companies affecting wide range of people)
6: no advertisement posts unless verified as legitimate and non-exploitative/non-consumerist
7: crypto related posts, unless essential, are disallowed
founded 5 years ago
MODERATORS
If I'm understanding the question right. This is what Immutable Linux distros do. Such as Nixos, fedora silver blue, and vanilla os.
I use nixos myself. But its quite different then most distros. The way you config it and install packages. For the better in my opinion.
Something like silverblue works pretty much the same as normal Fedora except you can't install packages like you normally would. Because the system files can't be edited. You mostly use flatpak for everything. Except the system updates. Which you have to reboot to switch to the new updated image. But past images are saved so you can rollback if needed.
From what I understand Chromebook os is a Immutable Linux distro same as the ones I mentioned. Just with Google with built in.
Yes, that was indeed the question.
If I read it correct, you need a specialised distro for this. You cannot do this on a off-the-shelf Debian or Ubuntu?
I'll do some searching on 'unmutable Linux'. Thanks for the (very quick) answer! ๐
I think the answers given here don't quite fit the question.
Android and Windows have dedicated recovery partitions sectioned off on the disk that the OS never boots to and does not interact with during normal system operation.
If something goes wrong with the OS, then a signal is sent to the BIOS or other non-OS system to "hey, recover from this partition".
Btrfs, NixOS, Guix, and other immutable (file-)systems, implement this via having a file system hierarchy protected by various permissions and softlinks to create a checkpoint of sorts, which is managed by a dedicated service that runs with the OS during normal system operation.
The drawback of these systems is that if something does go wrong with the OS, it cannot fallback to the BIOS to save it. The OS has to somehow signal to itself that it needs to restore from an earlier checkpoint.
Just watched some videos on btrfs. I start to understand the conceps. Perhaps I should also look into how exactly
On windows and the "recovery partion". I guess what you say is that it should always be possiblity to boot in some kind of system, but it will not happen automatically as there is no way for a system to detect that the system completely hangs.
Thinking about it. It kind of strange. Embedded systems have watchdog interrupts that get fired if the system hangs (i.e. if it does not provide a "yes, I still live" signal every "x" milliseconds). Does a PC not have something similar?
embedded systems have the advantage of all using a single bootloader: Uboot, so the error path is always known and the software knows how to fallback.
With x86_64 systems it's a mixed bag, and maybe the windows and linux bootloader knows what to do, but in most cases it will just signal an error and stop