Comment 2 for bug 190596

Yes, the LiveCD booted without an error message. The installer runs fine, too, but cannot copy data and exits at some point. In my opinion, the installer should during all times assume that something can go wrong or that it is being aborted. I bet you could reproduce my problem by switching off the computer while the Installer is copying files to the computer. This should never result in an ENTIRELY unbootable system. Here is my suggestion how the process could work:

1. Ask for all the partitioning and so on
2. If there is any partitioning to be done, do it, but put it in a state where the pre-existing system is booted by default.
3. Install Ubuntu on one of the partitions. ONLY if this does not produce any errors, continue:
4. Install GRUB at the very end, then in a final step make the Ubuntu partition the default.

What do you think?