Udev Rules not working

[wolfyrion]

Hi ,
it seems anything I put in udev rules are not working

For example

kate /etc/udev/rules.d/60-ioschedulers.rules

# set scheduler for NVMe
ACTION==“add|change”, KERNEL==“nvme[0-9]n[0-9]”, ATTR{queue/scheduler}=“none”
# set scheduler for SSD and eMMC
ACTION==“add|change”, KERNEL==“sd[a-z]*|mmcblk[0-9]*”, ATTR{queue/rotational}==“0”, ATTR{queue/scheduler}=“mq-deadline”
# set scheduler for rotating disks
ACTION==“add|change”, KERNEL==“sd[a-z]*”, ATTR{queue/rotational}==“1”, ATTR{queue/scheduler}=“bfq”

cat /sys/block/nvme0n1/queue/scheduler                                                                                                                                                                
mq-deadline kyber [bfq] none

Any Idea how to fix it?

[BS86]

my nvme - line looks like this and is working:

# set mq-deadline scheduler for non-rotating nvme-disks
ACTION=="add|change", KERNEL=="nvme[0-9]n1", ATTR{queue/rotational}=="0", ATTR{queue/scheduler}="mq-deadline"

[wolfyrion]

The problem is not with the rules but with UDEV since the rules are not triggering while the service is running

[Stagger_Lee]

Just to eliminate the simplest possibility, have you rebooted (or reloaded udev rules with sudo udevadm trigger)?

[wolfyrion]

is ok is fixed ,
The problem was that I have used copy paste and I think something went wrong in KATE but when I have used a plain text editor like gedit or nano it worked.

Below you can find my udev rules that sets read_ahead as well for faster perfomance

set scheduler for NVMe

ACTION==“add|change”, KERNEL==“nvme[0-9]n[0-9]”, ATTR{queue/scheduler}=“none”,ATTR{bdi/read_ahead_kb}=“4096”

set scheduler for SSD and eMMC

ACTION==“add|change”, KERNEL==“sd[a-z]|mmcblk[0-9]”, ATTR{queue/rotational}==“0”, ATTR{queue/scheduler}=“mq-deadline”,ATTR{bdi/read_ahead_kb}=“4096”

set scheduler for rotating disks

ACTION==“add|change”, KERNEL==“sd[a-z]*”, ATTR{queue/rotational}==“1”, ATTR{queue/scheduler}=“bfq”,ATTR{bdi/read_ahead_kb}=“2096”