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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.
There is a file system you can use. A alternative to ext4. I think its Btrfs. I never tried it. But it let’s you take snapshots that you can restore to. That’s not just system files but everything. And pretty sure you can use it with a disto like arch and Debian. I think that’s how snapshots work. But as I said I never actually tried it out.
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.
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! 😀
There is a file system you can use. A alternative to ext4. I think its Btrfs. I never tried it. But it let’s you take snapshots that you can restore to. That’s not just system files but everything. And pretty sure you can use it with a disto like arch and Debian. I think that’s how snapshots work. But as I said I never actually tried it out.
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.