Are you trying to install to internal memory? If not, it looks like your bootloader tried to load the system from memory card but doesn't supply bootfromext parameter.
I don't know where did it try to install
I follow the instruction and use sd card:
To boot the system for the first time you have to use one from the following - sometimes only one way of doing this works!
- recovery method (3rd variant): if your box is rooted, use terminal emulator app and execute