On Sun 05 Dec 2021 at 14:11:25 (+0100), hdv@gmail wrote: > On 2021-12-05 13:33, Andrei POPESCU wrote: > > On Vi, 12 nov 21, 12:27:59, Stefan Monnier wrote: > > > > > > As mentioned, the way to control it will depend on the specific tool > > > used to mount. E.g. if it's mounted by hand via a rule in /etc/fstab, > > > then you can rules that specify the device via /etc/disk/by-uuid. > > > > > > Do note that partition UUIDs are not designed to be reliable w.r.t > > > malicious uses (it's easy to create a partition with the same UUID as > > > some other). > > > > /dev/disk/by-id/ should be device specific. > > Shoot, I had forgotten about WWNs at all! Yep, those should be good > enough for my purposes.
I make a habit of archiving the udevadm info, or /run/udev/data/b8:NN files, for all my disks, sticks and cards. I can't find any WWNs that are not on either spinning drives or my (sole) SSD. Even my oldest hard drive (early-2007) lacks one. So I'm interested to know how/where you read them from on SD cards. Is this a new thing with SDXC/SDUC? I use LABELs and "UUIDs" (Serial Numbers) to identify mine. LABELs are most use; for example, I have a Nokia phone that writes a new Serial Number on any µSD card that's inserted. I have no idea why. It's obviously only useful in a cooperative environment. Cheers, David.
