Comment 8 for bug 1079729

James -- That output is a bit odd, showing that you only have 5GB partition space on /data which is what I would expect to see on a 8GB variant of the Nexus7.

Once you're done with the update, would you mind also sending some fastboot output over?

$ adb reboot bootloader

... while you're waiting in the bootloader, from your hostmachine connected via usb:

$ sudo fastboot getvar all

--chris