How to update from Ubuntu 14.04.3 to 14.04.4

Question

3 months ago I installed Ubuntu 14.04.3 with kernel 3.19. My current kernel version is 3.19.0-49-generic

As I have a new DELL Precision 5510 laptop with Intel skylake technology some features work only with the new kernel 4

Therefore I've been waiting for Ubuntu 14.04.4 with kernel 4.2 which should be released in February 2016: https://wiki.ubuntuusers.de/LTS_Enablement_Stacks/ I've read that it was release some days ago: 11. Februar 2016

But it seems this point release isn't installed automatically with the regular system updates. How can I migrate/update to this new release without risking some instability

Thanks and kind regards

Answer 1

I've done several point upgrades in the 14.04.x series. The 'apt-get dist-upgrade' command will update most things, but not necessarily the kernel. A 'uname -a' after the upgrade (and subsequent reboot) will tell you.

If you still have a 3.19 series kernel, you can then do 'sudo apt-get install Linux-generic-lts-wily' to get the 4.2 kernel.

Answer 2

As pointed by @Larry Greenwald and described here. To update the kernel you need to do it manually like this:

$ sudo apt-get install --install-recommends linux-generic-lts-wily