These kernels have support for the XFS file system from SGI. kernel-2.4.21-37.EL.XFS.athlon.rpm kernel-2.4.21-37.EL.XFS.i686.rpm kernel-hugemem-2.4.21-37.EL.XFS.i686.rpm kernel-smp-2.4.21-37.EL.XFS.athlon.rpm kernel-smp-2.4.21-37.EL.XFS.i686.rpm These contain additional kernel modules. kernel-hugemem-unsupported-2.4.21-37.EL.XFS.i686.rpm kernel-unsupported-2.4.21-37.EL.XFS.athlon.rpm kernel-unsupported-2.4.21-37.EL.XFS.i686.rpm kernel-smp-unsupported-2.4.21-37.EL.XFS.athlon.rpm kernel-smp-unsupported-2.4.21-37.EL.XFS.i686.rpm You will also need to install the appropriate kernel-module-xfs-2.4.21-37.EL.??? kernel-module-xfs-2.4.21-37.EL.XFS-1.3.3-1.SL.athlon.rpm kernel-module-xfs-2.4.21-37.EL.XFS-1.3.3-1.SL.i686.rpm kernel-module-xfs-2.4.21-37.EL.XFSsmp-1.3.3-1.SL.athlon.rpm kernel-module-xfs-2.4.21-37.EL.XFSsmp-1.3.3-1.SL.i686.rpm If you install one of the above kernels and you have openafs then you will need to update to the appropriate one of these. Will be provided later.