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- The udev rules included into dmsetup are responsible for setting up the devices
- in /dev/mapper and also provides some environment variables for use by later
- rules:
-
- * DM_NAME
- Actual DM device's name
- * DM_UUID
- UUID set for DM device (blank if not specified)
- * DM_SUSPENDED
- Suspended state of DM device (0 or 1)
-
- Other device mapper using packages may define there own rules. For example lvm2,
- see /usr/share/doc/lvm2/README.udev for further informations.
-