I’ve heard of immutable OS’s like Fedora Silverblue. As far as I understand it, this means that “system files” are read-only, and that this is more secure.

What I struggle to understand is, what does that mean in practical terms? How does installing packages or configuring software work, if system files can’t be changed?

Another thing I don’t really understand is what the benefits as an end user? What kinds of things can I do (or can be done by malware or someone else) to my Arch system that couldn’t be done on an immutable system? I get that there’s a security benefit just in that malware can’t change system files – but that is achieved by proper permission management on traditional systems too.

And I understand the benefit of something declarative like NixOS or Guix, which are also immutable. But a lot of OS’s seem to be immutable but not purely declarative. I’m struggling to understand why that’s useful.

  • DrNeurohax@kbin.social
    3·
    2 years ago

    I’m generally a Windows user, but on the verge of doing a trial run of Fedora Silverblue (just need to find the time). It sounds like a great solution to my… complicated… history with Linux.

    I’ve installed Linux dozens of times going back to the 90s (LinuxPPC anyone? Yellow Dog?), and I keep going back to Windows because I tweak everything until it breaks. Then I have no idea how I got to that point, but no time to troubleshoot. Easily being able to get back to a stable system that isn’t a fresh install sounds great.

    • tikitaki@kbin.social
      1·
      2 years ago

      I’ve been using the same distro for at least 4 years now and I haven’t ever had any issues. Fedora on a desktop at home. It’s very stable. You don’t even need to know too much… although obviously knowing your way around the terminal and knowing some basic things about Linux helps