linux-backports-modules-2.6.28-15-server 2.6.28-15.17 (amd64 binary) in ubuntu jaunty

 This package contains modules supplied by Ubuntu for Linux kernel 2.6.28 on
 x86/x86_64.
 .
 You likely do not want to install this package directly. Instead, install
 the linux-server meta-package, which will ensure that upgrades work
 correctly, and that supporting packages are also installed.