Sorry for being a bit off topic here but I'm hoping some of the clever
people on this
list can help me out with a systemd-udev issue here.I'm hoping this is a solved
issue in
fedora that maybe hasn't made its way upstream yet.
I have a custom usb devive that I want a certain group of users to have full
access to when
it is plugged in . For CentOS 6 & 7 I just add a rule to /etc/udev/rules.d
like
SUBSYSTEM=="usb", ATTR{idVendor}=="03eb", ATTR{idProduct}=="2017",
GROUP="atmel", MODE="666"
and Bob is your uncle. The created usb device ( /dev/bus/usb/.../... gets
permissions 666 as
user root and group atmel .
However, I cannot get this to work the same way with CentOS 8 / Rocky Linux 8
/ ( RHEL 8 )
and I cannot figure out why not. The device in /dev/bus/usb is being created
but only root
can access it as the ownersip is set to root:root and the mode to 664 . The
logs report an :
unhandled action 'bind' on /sys/devices/pci0000:00/0000:00:14.0/usb1/1-1 ( or
similar depending
on the port used ) and systemd-udev retuns : invalid SUBSYSTEM operation
which doesn't
tell me a lot.
Removing the MODE and GROUP from the rule makes the error messages go away but
ownership and
permissions are set to the default root and 664
Trying to replace MODE and GROUP ith a RUN=+some_script also fails ( with or
without
including the ACTION=="add" keyword. The script never starts as far as I can
tell.
Anybody knows what is going on here ? Does systemd-udevd not have root
permissions ?????
I can of course set the mode as user root or use sudo but really ?
systemd is version 239 which is probably outdated by fedora standards but it
is what comes
with RHEL 8.5 clones.
peter
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