Copy the complete image to RAM and use this for booting. This is useful
when the image resides on i.e. a DVD which needs to be ejected later on.
+**rd.live.overlay=**_<devspec>_:_(<pathspec>|auto)__
+Allow the usage of a permanent overlay.
+_<devspec>_ specifies the path to a device with a mountable filesystem.
+_<pathspec>_ is the path to a file within that filesystem, which shall be used to
+persist the changes made to the device specified by **root=live:__<url>__** option.
++
+[listing]
+.Example
+--
+rd.live.overlay=/dev/sdb1:persistent-overlay.img
+--
+
**rd.live.overlay.thin=**1::
Enables the usage of thin snapshots instead of classic dm snapshots.
The advantage of thin snapshots is, that they support discards, and will free