Hi, trying to install yumex by ym: yum install yumex But this fails: yum install yumex Setting up Install Process Setting up repositories Extras 100% |=========================| 1.1 kB 00:00 updates-released 100% |=========================| 951 B 00:00 base 100% |=========================| 1.1 kB 00:00 extras 100% |=========================| 1.1 kB 00:00 Reading repository metadata in from local files Excluding Packages in global exclude list Finished Parsing package install arguments Resolving Dependencies --> Populating transaction set with selected packages. Please wait. ---> Package yumex.noarch 0:0.42-9.0.fc4 set to be updated --> Running transaction check Dependencies Resolved ============================================================================= Package Arch Version Repository Size ============================================================================= Installing: yumex noarch 0.42-9.0.fc4 Extras 180 k Transaction Summary ============================================================================= Install 1 Package(s) Update 0 Package(s) Remove 0 Package(s) Total download size: 180 k Is this ok [y/N]: y Downloading Packages: warning: rpmts_HdrFromFdno: Header V3 DSA signature: NOKEY, key ID 1ac70ce6 Public key for yumex-0.42-9.0.fc4.noarch.rpm is not installed Can somebody help? I did not find any advice in the archives solving my problem. -- Best regards / Mit freundlichen Gruessen Joachim Backes <backes@xxxxxxxxxxxxxx> University of Kaiserslautern,Computer Center [RHRK], Systems and Operations group, High performance computing and LINUX cluster management. D-67653 Kaiserslautern, PO Box 3049, Germany -------------------------------------------------- Phone: +49-631-205-2438, FAX: +49-631-205-3056 http://hlrwm.rhrk.uni-kl.de/home/staff/backes.html