Re: udev lvm permisions

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On Mon, Dec 15, 2008 at 16:24, Geert Geurts <begeert@xxxxxxxxx> wrote:
> Thanks for your reply!
> Indeed it's about a logical volume I want to mount as a normal user.
>
> I've already had discussion with Michal Soltys,
> he sugested to create a rule according to the following:
> ACTION!="add|change", GOTO="dm_end"
> KERNEL!="dm*", GOTO="dm_end"
>
> PROGRAM="/sbin/dmsetup info -c --noheadings -o uuid -j%M -m%m",
> ENV{DM_UUID}="%c"
>
> ENV{DM_UUID}=="LVM-N28qi20mqjyPR150TYivmJzvkn8zzpi2VEhSFspDTiAxn2GLFC7xJ8Lfh12dmGH0", GROUP="users", MODE=660
>
> LABEL="dm_end"
>
>
> I've created this rule but it applies to the kernel device... /dev/dm-*.
> What I need is a rule that changes the ownership
> of /dev/mapper/HomeVolume.
>
> Thats where I stand now,
> so any suggestions are welcome!

All the device-mapper/lvm tools are disconnected from udev, and mess
around in /dev on their own. No user higher in the layers
udev/HAL/DeviceKit/Desktop has a clue what device-mapper did here.

On many distros you should be able to use the (workaround the issue)
/dev/disk/by-id/dm-{uuid,name}-* links maintained by udev.

Thanks,
Kay
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