Updating the kernel is easier in Debian-based systems. With connections to appropriate repositories, an update is a straightforward process. With the apt-get install command, it's easy to upgrade a kernel:
$ sudo apt-get install linux-server linux-headers-^uname -rv \ linux-image-server linux-restricted-modules-^uname -rv
Of course, if some of these packages, such as linux-restricted-modules-vuname -rv, are not currently installed, they need not be upgraded. In fact, if you prefer to limit Ubuntu to GPL and other open source software, do not install the linux-restricted-modules package.
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