After doing a clean install of kde pclos 2012.12 updating sources list then reloading, I wind up with a corrupted database. I have rebuilt it exactly as you have posted, which then allowed me to download the approx 500 packages. As soon as it attempts to apply the packages the system crashes or freezes. When I go to reboot the system the xorg system is corrupted. Some tinkering around has got me prompted for task-X11 packages which I could not do when the system was borked again. I have duplicated this scenario at least a dozen times, trying remastered cd from other computers on dvd or external drives,
The computer will work fine for days without updating. Installed apps,Firefox, vlc etc. all function fine with the native installs found on the 2010.12 iso or what are found on the remasters.
None of the disks used have given me any problems on any other computer which is most puzzling. I have changed out the hard drive, memory, video card, removed cpu and reapplied thermal grease. All the temps are as they should be. When rebuilding the database everything is looking good until the end which I am posting.
Computer Specs Athlon 6000 X2 Nvidia 8400GT 2gig memory Nvidia chipset
D: closed db index /var/lib/rpmrebuilddb.7307/Filedigests
rpmdb: Page 534: item 71 has bad type
rpmdb: /var/lib/rpmrebuilddb.7307/Filedigests: DB_VERIFY_BAD: Database verification failed
error: db4 error(-30972) from db->verify: DB_VERIFY_BAD: Database verification failed
D: verified db index /var/lib/rpmrebuilddb.7307/Filedigests
D: closed db index /var/lib/rpmrebuilddb.7307/Sha1header
D: verified db index /var/lib/rpmrebuilddb.7307/Sha1header
D: closed db index /var/lib/rpmrebuilddb.7307/Sigmd5
D: verified db index /var/lib/rpmrebuilddb.7307/Sigmd5
D: closed db index /var/lib/rpmrebuilddb.7307/Installtid
D: verified db index /var/lib/rpmrebuilddb.7307/Installtid
D: closed db index /var/lib/rpmrebuilddb.7307/Provideversion
D: verified db index /var/lib/rpmrebuilddb.7307/Provideversion
D: closed db index /var/lib/rpmrebuilddb.7307/Requireversion
D: verified db index /var/lib/rpmrebuilddb.7307/Requireversion
D: closed db index /var/lib/rpmrebuilddb.7307/Dirnames
rpmdb: Page 147: gap between items at offset 3992
rpmdb: Page 147: gap between items at offset 4088
rpmdb: Page 147: item order check unsafe: skipping
rpmdb: /var/lib/rpmrebuilddb.7307/Dirnames: DB_VERIFY_BAD: Database verification failed
error: db4 error(-30972) from db->verify: DB_VERIFY_BAD: Database verification failed
D: verified db index /var/lib/rpmrebuilddb.7307/Dirnames
D: closed db index /var/lib/rpmrebuilddb.7307/Triggername
D: verified db index /var/lib/rpmrebuilddb.7307/Triggername
D: closed db index /var/lib/rpmrebuilddb.7307/Conflictname
D: verified db index /var/lib/rpmrebuilddb.7307/Conflictname
D: closed db index /var/lib/rpmrebuilddb.7307/Providename
D: verified db index /var/lib/rpmrebuilddb.7307/Providename
D: closed db index /var/lib/rpmrebuilddb.7307/Requirename
D: verified db index /var/lib/rpmrebuilddb.7307/Requirename
D: closed db index /var/lib/rpmrebuilddb.7307/Group
D: verified db index /var/lib/rpmrebuilddb.7307/Group
D: closed db index /var/lib/rpmrebuilddb.7307/Basenames
rpmdb: Page 172: item 69 has bad type
rpmdb: /var/lib/rpmrebuilddb.7307/Basenames: DB_VERIFY_BAD: Database verification failed
error: db4 error(-30972) from db->verify: DB_VERIFY_BAD: Database verification failed
D: verified db index /var/lib/rpmrebuilddb.7307/Basenames
D: closed db index /var/lib/rpmrebuilddb.7307/Name
D: verified db index /var/lib/rpmrebuilddb.7307/Name
D: closed db index /var/lib/rpmrebuilddb.7307/Packages
D: closed db environment /var/lib/rpmrebuilddb.7307/Packages
D: verified db index /var/lib/rpmrebuilddb.7307/Packages
D: removing directory /var/lib/rpmrebuilddb.7307