locales and language sets crash during update (from 7.08 to 8.04)

Binary package hint: update-manager

1) Ubuntu 7.04 running on Intel Pentium 4
2) update process to migrate ahead Linux Operating System version from 7.08 to 8.04
3) locales, en_US UTF-8 package (if I remember well) and other 4 packages linked with internazionalization or language sets remain in idle, to go ahead with update procedure I killed each single update process (after waiting for 8 hours!!)
4) se above

ProblemType: Package
Architecture: i386
Date: Tue Sep 2 23:42:50 2008
DistroRelease: Ubuntu 8.04
ErrorMessage: ErrorMessage: SystemError in cache.commit(): installArchives() failed

Package: update-manager 1:0.87.30
PackageArchitecture: all
SourcePackage: update-manager
Title: package update-manager 1:0.87.30 failed to install/upgrade: ErrorMessage: SystemError in cache.commit(): installArchives() failed
Uname: Linux 2.6.24-19-generic i686