Hi, you will probably need this script (modified for kolab) and dependency on db4.7-util, db5.1-util to close this bug report. http://git.debian.org/?p=pkg-cyrus-imapd/cyrus-imapd-2.4.git;a=blob;f=debian/cyrus-upgrade-db O. -- Ondřej Surý <ondrej at sury.org>