Hi, when looking at the udev properties of a device mapper node, how can I decide whether this is a block device that the user can use for creating filesystems on, etc? For example, when creating a thinly provisioned logical volume with these steps # vgcreate TEST /dev/loop1 # lvcreate TEST --thinpool pool -L 80 # lvcreate -T TEST/pool -n thin -V 100 I end up with a lot of devices: # ls /dev/mapper/TEST-* /dev/mapper/TEST-pool /dev/mapper/TEST-pool_tmeta /dev/mapper/TEST-thin /dev/mapper/TEST-pool_tdata /dev/mapper/TEST-pool-tpool How can a program tell that only /dev/mapper/TEST-thin can really be used as a block device, and the rest should be ignored? Is there a way to do this by looking at "udevadm info", for example? (What seems to work is skipping all nodes that have DM_UDEV_IGNORE_DISK_RULES_FLAG set to true. Is this maybe even documented somewhere?) Thanks! _______________________________________________ linux-lvm mailing list linux-lvm@redhat.com https://www.redhat.com/mailman/listinfo/linux-lvm read the LVM HOW-TO at http://tldp.org/HOWTO/LVM-HOWTO/
