Comment 3 for bug 1298863

This looks like an issue with your network connection:

Mar 28 08:23:33 ubuntu in-target: Failed to fetch gzip:/var/lib/apt/lists/partial/gb.archive.ubuntu.com_ubuntu_dists_precise_main_source_Sources Encountered a section with no Package: header
Mar 28 08:23:33 ubuntu in-target:
Mar 28 08:23:33 ubuntu in-target: W
Mar 28 08:23:33 ubuntu in-target: :
Mar 28 08:23:33 ubuntu in-target: Failed to fetch http://gb.archive.ubuntu.com/ubuntu/dists/precise/multiverse/binary-i386/Packages 404 Not Found [IP: 91.189.92.200 80]
Mar 28 08:23:33 ubuntu in-target:
Mar 28 08:23:33 ubuntu in-target: E
Mar 28 08:23:33 ubuntu in-target: :
Mar 28 08:23:33 ubuntu in-target: Some index files failed to download. They have been ignored, or old ones used instead.
Mar 28 08:23:33 ubuntu in-target:

Try installing without downloading updates.