Mavericks install: "there was a problem... try reinstalling", third time in a row Mavericks install worked at first. I was able to enjoy Finder tabs and such. I updated Tuxera for Mac to 2013 and rebooted, then I was stuck at an endless spinner. I tried disk repair, safe mode, same problem.

Finally, I tried reinstalling Mavericks. Two more times. Both failed with "there was a problem... try reinstalling". I tried resetting the PROM, now back at the endless spinner problem.

Any idea how to fix this?

I upgraded from Mountain Lion on a 13" mid-2013 MacBook Air.
I took my Mac to an Apple Store. On the next reinstall, everything worked: booting, rebooting, and no data lost.

Shrug.