Comment 15 for bug 882255

i am using 10. 10 .
 when an upgrade listed through update-manager i tried for it but cancelled twice for want of time for downloading.
But when approached for upgrade again , the answer was no upgrade possible.

Run command for listing upgrade through update-manager failed for unknown reason
 repeatedly.
So i un- installed update-manager, and when tried for installing back , the answer was 'update-manager could not be installed. Update through synaptic also was blocked. No update or installation of any thing new was refused. On an attempt to recover update-manager i installed kdb environment , could installed back up-date manger there. Subsequently the ignome version appeared back . now the upgrade option is listed back through Update manager.