Linux Kernel 4.9 on MailCleaner

If you are running a vanilla install of MailCleaner, you may know that the Linux Kernel version is 3.16 out of the box. While this kernel is certainly not old, if you are running on newer hardware, you may want to go with a newer Kernel to support your hardware. In this tutorial we are going to detail the steps required to install Linux Kernel 4.9.0 from the Jessie Backports repository. At the time of writing, the latest version in the Jessie Backports repo is 4.9.0.

# add backport sources to the end of the file
echo "deb jessie-backports main" >> /etc/apt/sources.list
echo "deb-src jessie-backports main" >> /etc/apt/sources.list
# update apt & install kernel 4.9
apt-get update ; apt-get install -t jessie-backports linux-image-amd64
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