GUI Crashed when updating 10.04 to 12.04 using the update-manager

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http://askubuntu.com – I was updating my Desktop from 10.04 to 12.04 and the server crashed before the update was done is there any way to fix this other than reinstalling the OS. If not is there a way that I can back up by RAID configuration, Apache, php, sql, Python, ethernet connection, cron jobs, samba, LDAP, etx. and other use full apps export a list of all of the things i have installed and config files automatically? (HowTos)