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#1 2013-05-28 18:32:45
- sobota
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- Registered: 2012-04-05
- Posts: 31
udev rule does't work
I have issue with acces to
/dev/nvidia*I was create 00-nvidia.rules, it contain:
KERNEL=="nvidia*", GROUP="video", MODE="0666"But after reboot file belong to "root" group. What is wrong?
Last edited by sobota (2013-05-28 19:32:05)
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#2 2013-05-28 20:06:02
- brebs
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- Registered: 2007-04-03
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Re: udev rule does't work
Because later rules can overwrite your assignations.
Either use := instead of = (that's a colon in front, "man udev" explains it), or use a filename starting with e.g. 99 instead of 00.
man udev:
:=
Assign a value to a key finally; disallow any later changes.
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#3 2013-05-28 20:16:30
- Gusar
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- Registered: 2009-08-25
- Posts: 3,607
Re: udev rule does't work
Though I must say that rule doesn't make much sense. You're assigning the video group, but then give rw permission to anyone anyway, so the group is meaningless.
Also, the nvidia module has it's own way to handle this, Gentoo does this by default - /etc/modprobe.d/nvidia.conf
options nvidia NVreg_DeviceFileMode=432 NVreg_DeviceFileUID=0 NVreg_DeviceFileGID=91 NVreg_ModifyDeviceFiles=1Offline
#4 2013-05-28 20:37:59
- sobota
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- Registered: 2012-04-05
- Posts: 31
Re: udev rule does't work
I change rule on:
KERNEL=="nvidia*", GROUP:="video", MODE="0666"And rename it "100-nvidia.rules". But after reboot problem still exist.
@Gusar
Directory /etc/modprobe.d/ is empty.
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#5 2013-05-28 20:48:31
- Gusar
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- Registered: 2009-08-25
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Re: udev rule does't work
So what if it's empty?
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#6 2013-05-28 20:51:02
- sobota
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- Posts: 31
Re: udev rule does't work
File nvidia.conf does't exist in "/etc/modprobe.d" .
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#7 2013-05-28 21:03:01
- Gusar
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Re: udev rule does't work
Create it then, duh.
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#8 2013-05-28 21:15:47
- sobota
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- Registered: 2012-04-05
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Re: udev rule does't work
Ok but i don't need this. I need only repair udev rule.
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#9 2013-05-28 21:29:59
- Gusar
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- Registered: 2009-08-25
- Posts: 3,607
Re: udev rule does't work
Err, you want the nvidia node to belong to the video group, do you not? This is how you do it. So yes, yo *do* need it.
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#10 2013-05-28 21:54:56
- sobota
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- Registered: 2012-04-05
- Posts: 31
Re: udev rule does't work
Ok after create empty nvidia.conf in /etc/modprobe.d nvidia and nvidiactl disappear from /dev afeter reebot whats mor file is still empty..
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#11 2013-05-28 22:02:43
- jasonwryan
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Re: udev rule does't work
man modprobe.dOffline
#12 2013-05-28 22:12:19
- sobota
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- Registered: 2012-04-05
- Posts: 31
Re: udev rule does't work
I know what it is, nvidia module is loaded. I can not find parameters for this which define group.
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#13 2013-05-28 22:26:11
- Gusar
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- Registered: 2009-08-25
- Posts: 3,607
Re: udev rule does't work
I told you the parameters...
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#14 2013-05-28 22:51:07
- sobota
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- Registered: 2012-04-05
- Posts: 31
Re: udev rule does't work
@Gusar
I do this- it doesn't work. Files /dev/nvidia* after reboot disappear.
Last edited by sobota (2013-05-28 22:52:30)
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