Dear all I have succeded to install a local repository. Now, there is a problem with the key. When trying to lunch the installation from a local PC, I got this. Could you help please. Thanks [root@wn1 adel]# yum -y install thunderbird Loading "installonlyn" plugin Setting up Install Process Setting up repositories base [1/2] base 100% |=========================| 951 B 00:00 updates-released [2/2] updates-released 100% |=========================| 1.2 kB 00:00 Reading repository metadata in from local files Parsing package install arguments Resolving Dependencies --> Populating transaction set with selected packages. Please wait. ---> Package thunderbird.i386 0:1.5.0.7-1.fc5 set to be updated --> Running transaction check Dependencies Resolved ============================================================================ = Package Arch Version Repository Size ============================================================================ = Installing: thunderbird i386 1.5.0.7-1.fc5 updates-released 21 M Transaction Summary ============================================================================ = Install 1 Package(s) Update 0 Package(s) Remove 0 Package(s) Total download size: 21 M Downloading Packages: warning: rpmts_HdrFromFdno: Header V3 DSA signature: NOKEY, key ID 4f2a6fd2 Public key for thunderbird-1.5.0.7-1.fc5.i386.rpm is not installed -------------------------------------------------------------------- mail2web - Check your email from the web at http://mail2web.com/ .