Hello, I'm currently trying to update my Fedora 14 (desktop) to Fedora 15 following this howto : http://www.howtoforge.com/how-to-upgrade-from-fedora-14-to-fedora-15-desktop-and-server Unfortunately, the procedure stops when issuing the "preupgrade" command : ========================================================== [aoip@vbox-fedora14-64b ~]$ su -l root Mot de passe : [root@vbox-fedora14-64b ~]# yum update Modules complémentaires chargés*: langpacks, presto, refresh-packagekit Adding fr_FR to language list Configuration du processus de mise à jour Aucun paquet marqué pour mise à jour [root@vbox-fedora14-64b ~]# yum update rpm Modules complémentaires chargés*: langpacks, presto, refresh-packagekit Adding fr_FR to language list Configuration du processus de mise à jour Aucun paquet marqué pour mise à jour [root@vbox-fedora14-64b ~]# yum -y update Modules complémentaires chargés*: langpacks, presto, refresh-packagekit Adding fr_FR to language list Configuration du processus de mise à jour Aucun paquet marqué pour mise à jour [root@vbox-fedora14-64b ~]# yum clean all Modules complémentaires chargés*: langpacks, presto, refresh-packagekit Adding fr_FR to language list Cleaning repos: fedora updates Nettoyage complet 5 delta-package files removed, by presto [root@vbox-fedora14-64b ~]# yum install preupgrade Modules complémentaires chargés*: langpacks, presto, refresh-packagekit Adding fr_FR to language list fedora/metalink | 3.5 kB 00:00 fedora | 4.3 kB 00:00 fedora/primary_db | 14 MB 00:24 updates/metalink | 3.3 kB 00:00 updates | 4.7 kB 00:00 updates/primary_db | 6.7 MB 00:13 Configuration du processus d'installation Le paquet preupgrade-1.1.10-1.fc14.noarch est déjà installé dans sa dernière version Rien à faire [root@vbox-fedora14-64b ~]# preupgrade Modules complémentaires chargés*: blacklist, langpacks, whiteout Aucun plugin correspondant pour*: rpm-warm-cache Aucun plugin correspondant pour*: remove-with-leaves Aucun plugin correspondant pour*: auto-update-debuginfo Adding fr_FR to language list preupgrade-main (mirrorlist) url*: http://mirrors.fedoraproject.org/mirrorlist?repo=fedora-15&arch=$basearch maintenant*: http://mirrors.fedoraproject.org/mirrorlist?repo=fedora-15&arch=x86_64 preupgrade (mirrorlist) url*: http://mirrors.fedoraproject.org/mirrorlist?path=pub/fedora/linux/releases/15/Fedora/$basearch/os/ maintenant*: http://mirrors.fedoraproject.org/mirrorlist?path=pub/fedora/linux/releases/15/Fedora/x86_64/os/ méta-données inconnues en train d'être téléchargées*: repomdmRtFbTtmp.xml Not using downloaded repomd.xml because it is older than what we have: Current : Thu Nov 3 12:01:00 2011 Downloaded: Wed May 18 00:31:39 2011 Cannot find a valid baseurl for repo: preupgrade [root@vbox-fedora14-64b ~]# ========================================================== Before issuing the "preupgrade" command, I' choose the "Fedora 15" item in the listbox giving me the choice between Fedora 15, Fedora 16 and Fedora 17 (with Fedora 16 selected by default before I select the fedora 15 item ?). At this point, I don't know what to check and even don't understand what could be the source of error. Is it too late to upgrade Fedora 14 to Fedora 15 ? Archives older than Fedora 18 not available anymore ? Thanks in advance for any help & suggestion from anybody at HowtoForge. Alain-Pierre