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)
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