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Why does a new install of 16.04.05 install kernel 4.15.0, but an update to the same version in a different Part. only gets kernel 4.4.0-141 as the latest version kernel installed?

Just as a background as to why I have two versions of the same 16.04.05, when the update installed 4.4.0-141, it killed the video, on Nvidia video output and dropped to Maintenance only mode. After a day of trying to get that back I did a new install in a different Part. which then installed the 4.15 kernel and the video was then working correctly. Neither system was using the specific Nvidia driver at any time.

Shouldn't the Update take you to the same kernel as the new install does, if used on the same machine?

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    The answer is no, it doesn't. See wiki.ubuntu.com/Kernel/LTSEnablementStack – Pilot6 Feb 18 at 17:31
  • So that leaves me completely confused. If you do the original install on 16.04.01 and do regular updates to get to 16.04.05, the kernel will only get updates for existing oiriginal Kernel 4.4., if I understand your reply. But if every time there is a new version released, if you did a new install instead of an update, you would get the benefits of the new Kernel if available in that new edition. So why doesn't the Kernel version get updated to the current version available for the upgraded version number of Ubuntu? – Dennis Feb 18 at 18:22
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    You can always install HWE. The reason is not to install newer kernels without a request. – Pilot6 Feb 18 at 18:36
  • @Dennis the entire point of an LTS release is that software is NOT upgraded, with three specific exceptions. LTS releases are envisioned for enterprise use, where unexpected software upgrades can break workflow. That's why HWE is not automatic. If you want the latest software, use the latest release of Ubuntu - that's what it is for. – user535733 Feb 18 at 21:48

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