Comment 15 for bug 1263811

It seems to me that the files can't be extracted to the correct directory because a lack of root access.

I managed to solve it by performing the following steps:

1. In the Ubuntu Dual-boot app deleting the downloaded files (options -> delete...)
2. Reboot the phone
3. Do NOT delete the /cache as the manual says.
4. Start the installation again and when prompted allow SU access.
PAY ATTENTION there might be a timeout on the approval. I allowed SU access for this app "forever" in order to avoid repeated questions.

ALSO - If it fails do it again. For me the second time worked (I must have missed the first SU prompt in the first installation)

Device: Galaxy Nexus with CM 10.2