Thanks for your bugreport.
Please try to remove your cdrom source entries from
/etc/apt/sources.list (e.g. via software-properties-gtk or -kde) and try
the upgrade again.
** Changed in: update-manager (Ubuntu)
Status: New => Incomplete
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kubuntu 8.10 to 9.10 upgrade fails
https://bugs.launchpad.net/bugs/370150
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