Dear SL devels, I hope this is the right place to ask. I just thought I will renew our Xen guests with 5.6, and after a fresh install, I have been unable to install kernel-xen-devel. I have tried a yum clean all with no luck. Aug 09 16:57 [root@ppwn04:yum.repos.d]# uname -a Linux ppwn04.lcg.cscs.ch 2.6.18-238.9.1.el5xen #1 SMP Tue Apr 12 19:17:57 EDT 2011 x86_64 x86_64 x86_64 GNU/Linux I can see the file in the repository: http://ftp.scientificlinux.org/linux/scientific/56/x86_64/SL/kernel-xen- devel-2.6.18-238.9.1.el5.x86_64.rpm But a yum search does not help. Aug 09 16:58 [root@ppwn04:yum.repos.d]# yum search kernel-xen-devel Loaded plugins: kernel-module EGI-trustanchors | 951 B 00:00 EGI-trustanchors/primary | 29 kB 00:00 EGI-trustanchors | 197/197 UMD-1-base | 1.9 kB 00:00 UMD-1-base/primary_db | 132 kB 00:00 UMD-1-updates | 1.9 kB 00:00 UMD-1-updates/primary_db | 32 kB 00:00 sl-base | 2.1 kB 00:00 sl-base/primary_db | 2.1 MB 00:02 sl-security | 1.9 kB 00:00 sl-security/primary_db | 116 kB 00:00 Excluding Packages in global exclude list Finished Warning: No matches found for: kernel-xen-devel No Matches found And of course yum install does not work either. The repo file looks fine to me: Aug 09 16:54 [root@ppwn04:yum.repos.d]# cat /etc/yum.repos.d/sl.repo [sl-base] name=SL 5 base baseurl=http://ftp1.scientificlinux.org/linux/scientific/56/$basearch/SL http://ftp2.scientificlinux.org/linux/scientific/56/$basearch/SL ftp://ftp.scientificlinux.org/linux/scientific/56/$basearch/SL #mirrorlist=ftp://ftp.scientificlinux.org/linux/scientific/mirrorlist/sl- base-56.txt enabled=1 gpgcheck=0 # To use priorities you must have yum-priorities installed priority=10 gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-sl file:///etc/pki/rpm-gpg/RPM-GPG- KEY-sl5 file:///etc/pki/rpm-gpg/RPM-GPG-KEY-csieh file:///etc/pki/rpm-gpg/RPM- GPG-KEY-dawson file:///etc/pki/rpm-gpg/RPM-GPG-KEY-jpolok file:///etc/pki/rpm- gpg/RPM-GPG-KEY-cern file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-5 How do I know if a a package is really provided by the repository? I also see many other devel packages, but not the one I'm looking for. Aug 09 16:56 [root@ppwn04:yum.repos.d]# yum search devel | wc 1271 9102 78548 I did some tests and it seems this is also happening in SL5.4. The package is manually installable, but aparently not with yum. Any ideas would be highly apreciated. Thanks a lot, Pablo Fernandez