On Dec 6, 2007 5:40 PM, Andrew Allen <andy.allen at virgin.net> wrote: > To upgrade the kernel to CentOS 5.1 (to take advantage of support for > Dell wireless card bcm43xx), should I update everything or just type > 'yum update kernel', or what? It's OK to just update the kernel, however, why not update everything? There's really no good reason not to do a 'yum update' > Also, is it OK to remove 'old' kernels > (which appear in the boot list) when they are no longer required? Yum has the 'installonlyn' plugin, which will remove old kernels for you. By default, it is configured to keep 2 copies.