Unable to upgrade to 2.x

Hi.
Have tried multiple times to upgrade my BDP-1 running 1.75 to the latest version using firmware20140430.bin
Every time I get the error:
.....
84%. 85%. 86%. 87%.
Checking Firmware Integrity - 2014/9/29-22:54:9
ef7fc367005841445de7bb3394f5c67f /live/image/live/filesystem.new - 2014/9/29-22:54:28
Upgrade Failed:filesystem, 2

Then it reboots into 1.75
Have not found any solution on any forum. Any suggestions?

I have the same concern.

I'm running S1.75 2014-05-01 on a BDP-1.

It's not clear how to upgrade.

There are two Manic Moose upgrade versions in these threads.

Which one should I upgrade to?