I am using Ubuntu 12.04 32-bit with kernel 3.2.0-26-generic and GNOME 3.4.1.
when I run the upgrade manager, I get the option for partial upgrade and details show:
install (11)
remove (1)
upgrade (744)
then, I start the upgrade and get:
Could not download the upgrades
The upgrade has aborted. Please check your Internet connection or installation media and try again. All files downloaded so far have been kept.
Where out of 755 files. It does not download 5:
Failed to fetch http://np.archive.ubuntu.com/ubuntu/pool/main/k/krb5/libk5crypto3_1.10+dfsg~beta1-2ubuntu0.3_i386.deb 403 Forbidden
Failed to fetch http://np.archive.ubuntu.com/ubuntu/pool/main/k/krb5/libgssapi-krb5-2_1.10+dfsg~beta1-2ubuntu0.3_i386.deb 403 Forbidden
Failed to fetch http://np.archive.ubuntu.com/ubuntu/pool/main/k/krb5/libkrb5-3_1.10+dfsg~beta1-2ubuntu0.3_i386.deb 403 Forbidden
Failed to fetch http://np.archive.ubuntu.com/ubuntu/pool/main/k/krb5/libkrb5support0_1.10+dfsg~beta1-2ubuntu0.3_i386.deb 403 Forbidden
Failed to http://np.archive.ubuntu.com/ubuntu/pool/main/k/krb5/krb5-locales_1.10+dfsg~beta1-2ubuntu0.3_all.deb 403 Forbidden
This continues for weeks, I have tried it 15 times already.