this post was submitted on 04 Aug 2024
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    I don't think I'll continue using Arch, btw (lemmy.ohaa.xyz)
    submitted 3 months ago by FQQD@lemmy.ohaa.xyz to c/linuxmemes@lemmy.world
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    [–] zea_64@lemmy.blahaj.zone 3 points 3 months ago (2 children)

    If it was on something like BTRFS it'd probably be fine, though I imagine there's still a small window where the FS could flush while the file is being written. renameat2 has the EXCHANGE flag to atomically switch 2 files, so if arch maintainers want to fix it they could do

    1. Write to temporary file
    2. Fsync temporary file
    3. Renameat2 EXCHANGE temporary and target
    4. Fsync directory (optional, since a background flush would still be atomic, just might take some time)
    [–] dan@upvote.au 1 points 3 months ago

    renameat2

    I read this as "rena meat 2" and was very confused

    [–] FQQD@lemmy.ohaa.xyz 0 points 3 months ago (1 children)

    it was btrfs.

    [–] kolorafa@lemmy.world 8 points 3 months ago

    Just having btrfs is not enough, you need to have automatic snapshots (or do them manually) before doing updates and configured grub to allow you to rollback.

    Personally, I'm to lazy to configure stuff like that, I rather just pick my Vetroy USB from backpack, boot into live image and just fix it (while learning something/new interesting) than spend time preventing something that might never happen to me :)