Linux boot stages

How does linux boots up, from power button to running services.

Power button

When you pressed power button, current runs through circuits over the motherboard and boot process starts.

It also could be magic packet sent via network or some other remote start method. Let's say, command sent from IPMI …

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Ubuntu LTS: Use latest kernel

I was using Ubuntu 16.04 LTS with it's default 4.4 kernel and would like to test BBR congestion algorithm which available since 4.10 only.

Solution is very simple due to LTSEnablementStack/HWE feature. Can't say why, but this feature wasn't enabled at target host, probably it was …

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