set device mode permanently with udev rule


 
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Operating Systems Linux Red Hat set device mode permanently with udev rule
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Old 03-15-2012
In the meanwhile I found out, that setting the group of the device to "root" instead of "db2usrl1" makes the udev rule work as expected. The device mode is correctly set to 0600.

But changing the group back to anything else but "root" and ... peng ... the device mode goes back to 0660.

When you want NO access for a group, it doesn't really matter, which group it is, that has no access. So I can live with this. But I still wonder, what might cause this behaviour. The word "bug" comes to mind. Or is there something I do not get?
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VGREMOVE(8)						      System Manager's Manual						       VGREMOVE(8)

NAME
vgremove - remove a volume group SYNOPSIS
vgremove [-d|--debug] [-f|--force] [-h|-?|--help] [--noudevsync] [-t|--test] [-v|--verbose] VolumeGroupName [VolumeGroupName...] DESCRIPTION
vgremove allows you to remove one or more volume groups. If one or more physical volumes in the volume group are lost, consider vgreduce --removemissing to make the volume group metadata consistent again. If there are logical volumes that exist in the volume group, a prompt will be given to confirm removal. You can override the prompt with -f. OPTIONS
See lvm for common options. -f, --force Force the removal of any logical volumes on the volume group without confirmation. --noudevsync Disable udev synchronisation. The process will not wait for notification from udev. It will continue irrespective of any possible udev processing in the background. You should only use this if udev is not running or has rules that ignore the devices LVM2 cre- ates. SEE ALSO
lvm(8), lvremove(8), vgcreate(8), vgreduce(8) Sistina Software UK LVM TOOLS 2.02.95(2) (2012-03-06) VGREMOVE(8)