Comment 22 for bug 986654

The issue has been isolated to the single line change of launchpad revision 2760 (while revision 2761 edits the same line again, the results are the same).

 Specifically: in the file rules.d/60-persistent-storage.rules, this line:
 ACTION=="add", KERNEL=="sr*", ATTR{events_poll_msecs}=="0", ATTR{events_poll_msecs}="2000"
 works fine, but when it is changed to this (2760):
 ACTION=="add", KERNEL=="sr*", ATTR{events_poll_msecs}=="-1", ATTR{events_poll_msecs}="2000"
 or this (2761 and subsequent):
 ACTION=="add", ATTR{removable}=="1", ATTR{events_poll_msecs}=="-1", ATTR{events_poll_msecs}="2000"
 the problem exists.

 Why? The rule is for "sr" or "removeable" devices. The hard disk is an "sd" device. Why does the change result in issues with the hard disk?