This is what breaks the upgrade:
Investigating (0) libgtk2.0-0 [ i386 ] < none -> 2.24.6-0ubuntu5 > ( libs ) Broken libgtk2.0-0:i386 Depends on libcups2 [ i386 ] < none -> 1.5.0-8 > ( libs ) (>= 1.4.0) Considering libcups2:i386 4 as a solution to libgtk2.0-0:i386 5 Holding Back libgtk2.0-0:i386 rather than change libcups2:i386
That is because of: 2011-10-14 08:59:10,207 DEBUG Obsolete: ... libcupsys2 ...
This is what breaks the upgrade:
Investigating (0) libgtk2.0-0 [ i386 ] < none -> 2.24.6-0ubuntu5 > ( libs )
Broken libgtk2.0-0:i386 Depends on libcups2 [ i386 ] < none -> 1.5.0-8 > ( libs ) (>= 1.4.0)
Considering libcups2:i386 4 as a solution to libgtk2.0-0:i386 5
Holding Back libgtk2.0-0:i386 rather than change libcups2:i386
That is because of:
2011-10-14 08:59:10,207 DEBUG Obsolete: ... libcupsys2 ...