Dear Janwillem (and anybody who can't locate which file is owned by which rpm package) In your shell prompt, try rpm -qalp --queryformat "*"%-30{NAME}"\n" <path>/*.rpm | grep -B 300 crt1.o | more where <path> points to the directory where the rpm files are located, and it will tell you that crt1.o is provided by package libc-devel To install it , login as root, do rpm -i <path> libc-devel.rpm where <path> is where you'll find the rpm files on your system Rgds Kevin -- PLEASE read the Red Hat FAQ, Tips, Errata and the MAILING LIST ARCHIVES! http://www.redhat.com/RedHat-FAQ /RedHat-Errata /RedHat-Tips /mailing-lists To unsubscribe: mail [EMAIL PROTECTED] with "unsubscribe" as the Subject.