HI Mio, On Thu, Jul 03, 2025 at 03:05:52PM +1200, Mio wrote: > I found a bug affecting device detection of my btrfs filesystem with 3 > devices. My test system is currently running NixOS 25.05 with util-linux > 2.41. I am able to run a older version of util-linux with the command `nix > shell github:NixOS/nixpkgs/nixos-24.11#util-linux` which doesn't have the > bug. It would be nice to make your bug report a little more detailed. The command "blkid" without any option can return cached information, etc. The ideal is to call "blkid -p <devname>" and provide output from the command. You can also use "LIBBLKID_DEBUG=all blkid -p <devname>" to get debug output. Were your disks used for ZFS before btrfs? If yes, you're probably affected by https://github.com/util-linux/util-linux/issues/3613 Try "wipefs <device>" to get more information (don't worry, it does not wipe anything from the device by default). Karel -- Karel Zak <kzak@xxxxxxxxxx> http://karelzak.blogspot.com
