Dear Deltamac,
El capitan is the first osx system installation for years, that I was forced to do, instead of just upgrading from yosemite.
I was not able to upgrade from yosemite.
So, I did clean install.
At least, I was able to retrieve all my personal settings etc, with migration assistant, from external hard disk-yosemite.
Then, after going to el capitan with clean install, I hoped I had the right as an apple user, to have my smooth updates.
No. 10.11.1, did not installed, never booted. I waited for 10.11.2, to see if the problem is solve. No again. 10.11.2 combo update, also installs, but never boot.
So, what is the way to go?
Clean install in every major and minor update?
This is unforgivable.
It could not be 'diskmakerx', which is good tool and helped me to install el capitan 10.11 first version, the way to make any future updates.
I hoped after posting screenshots, or if somebody could take a look at log files I could post somewhere, to be able to guide me to solve the problem.
It is not easy for me to leave my mac to an apple center, it is almost impossible. I have an apple care coverage, I am thinking to call them, but I don't know if there will be a solution.
I can't believe I am the only one mac user in the world,
that has problems with el capitan updates.