lsattr loading modules, changing permissions of device nodes
biebl at debian.org
Tue Mar 16 19:25:43 GMT 2021
Am 16.03.21 um 19:50 schrieb Marc Haber:
> Now friendly and innocent questions towards the udev maintainers:
> * Do you see similiar behavior on your systems?
> * If yes, is this intended behavior?
> * Why does, for example, the /dev/btrfs-control device node get created
> with one set of owner/mode and then gets converted to a different one
> when someone accesses it? btrfs-progs are not installed, btrfs is not
> in use.
What you see are the default permissions of the devices. Once the device
is marked as ready by the kernel and a uevent is emitted, udev will run
its rules and apply the permissions. In this case
# grep btrfs-control /lib/udev/rules.d/*
You can manually trigger a uevent by e.g.
echo change > /sys/class/misc/btrfs-control/uevent
Has systemd-udev-trigger.service been run successfully during boot?
I don't remember any udev related changes which could cause this.
From which version to which version did you upgrade?
-------------- next part --------------
A non-text attachment was scrubbed...
Size: 840 bytes
Desc: OpenPGP digital signature
More information about the Pkg-systemd-maintainers