On Mon, 30 May 2016 05:06:39 PM Andrew Pam via luv-main wrote: Ubuntu is based on Debian and uses the same package management system. There's nothing stopping you from installing a Debian kernel on an Ubuntu system. You can configure apt repositories to have different priorities and have a Debian repository used for the kernel packages. Debian user-space usually works with kernels from the previous and the next release. For the things I work on I always try to make that work. There have been some exceptions (like udev and systemd depending on new kernel features in some versions and adding the "file:open" permission to SE Linux) but it's most likely that Debian 9 will work with a Debian 8 kernel and it's possible that Debian 10 will work with a Debian 8 kernel. You can cross-upgrade from Ubuntu to Debian as many packages have similar version numbers, but that might be too inconvenient for you. A reinstall to Debian might be best. Also Debian does work well with a Fedora or CentOS kernel. It is a little more effort to set it up so you might not want to do it. But it's technically possible if that gives you the best result. I've done it before. Different distributions have different policies about backporting features and supporting old versions. CentOS has a longer support cycle so it might be an option to use a CentOS kernel with Debian. As an aside I've talked to a client about retiring some non-PAE systems at some future time because CentOS is unsuitable and we don't want to support mixed OS systems. We are talking about a replacement cost of $50K for those systems which will probably happen a couple of years after Debian 8 support is dropped. -- My Main Blog http://etbe.coker.com.au/ My Documents Blog http://doc.coker.com.au/