Process Failed with Reason: Filesystem patches failed!

It will validate IPSW…
It wil unzip IPSW…
Patching ramdisk…
Patching filesystem…
Process failed with reason: Filesystem patches failed!

Every time. Running 5.3 on Apple TV 2, running 10.10.5 on Mac mini (mid 2011), used 0.96 and 0.97…always fails on this part from log:

2015-11-01 09:53:21.869 dbHelper[1717:389908] patching: /Volumes/BrightonTide10B809.K66OS/etc/fstab failed!! ABORT!
2015-11-01 09:53:21.870 dbHelper[1717:389908] filesystemJailbreak failed!! bail!
2015-11-01 09:53:22.515 dbHelper[1717:389908] FAIL!! ABORT!

Any ideas? Support ticket suggested I try the 0.97 beta…which was a fail…each time I would delete SP, remove the Tether folder, couldn’t find any SP in the Cache folder, re-install SP, still fail

I even tried the ‘put in DFU mode first’, then tried ‘the plug in micro USB, then power, immediately go to DFU and run SP’…still a fail…

I’m having the same issue. Anyone have a solution?