this post was submitted on 15 Mar 2024
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    [–] dan@upvote.au 175 points 8 months ago* (last edited 8 months ago) (32 children)

    and you shouldn't be using any of those, since the order can and will change. The numbers are based on the order the devices and device drivers are initialized in, not based on physical location in the system. The modern approach (assuming you're using udev) is to use the symlinks in /dev/disk/by-id/ or /dev/disk/by-uuid/ instead, since both are consistent across reboots (and by-id should be consistent across reinstalls, assuming the same partitioning scheme on the same physical drives)

    This is also why Ethernet devices now have names like enp0s3 - the numbers are based on physical location on the bus. The old eth0, eth1, etc. could swap positions between Linux upgrades (or even between reboots) since they were also just the order the drivers were initialized in.

    [–] PsychedSy@sh.itjust.works 17 points 8 months ago (12 children)

    Are UUIDs built into the hardware, or something your computer decides on based on the drive's serial number and shit?

    [–] lea@feddit.de 29 points 8 months ago (1 children)

    According to Arch Wiki they get generated and stored in the partition when it is formatted. So kinda like labels but automated and with (virtually) no collision risk.

    [–] PsychedSy@sh.itjust.works 10 points 8 months ago (2 children)

    I could have RTFM but you guys are more fun.

    [–] 0x4E4F@lemmy.dbzer0.com 5 points 8 months ago (1 children)

    Yeah, you get the best Linux info when reading meme comments 😁.

    [–] PsychedSy@sh.itjust.works 2 points 8 months ago

    I tried a gentoo stage 2 or 3 like 20 years ago. I'm still good.

    [–] Hexarei@programming.dev 4 points 8 months ago

    It's fun to have people around who read the friendly manual

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