“A little knowledge is a dangerous thing”
Yes, the MyCloud is based on Debian Wheezy, but it’s built with a non-standard , 64k page size, so you can’t simply update or install from the usual repositories.
Be thankful you didn’t brick the thing…
I would probably re-install the WD build. Use SectorGZ’s trick to fool it into overwriting with an ‘older’ (I.e. not newer) version, described here:
http://community.wd.com/t5/My-Cloud/Firmware-downgrade/m-p/693892/highlight/true#M9268
