[FS#653] RAID not working on Netgear WNDR4700

[LEDE Bugs]

The following task has a new comment added:

FS#653 - RAID not working on Netgear WNDR4700
User who did this - diizzyy (diizzyy)

----------
We should probably try bumping mdadm first if possible before fixing out rather old version.
----------

More information can be found at the following URL:
https://bugs.lede-project.org/index.php?do=details&task_id=653#comment2235