Boot problem

[Konstantin]

That seems to be the kernel loader. A "hanging" at this stage
is something very inconvenient, as I assume the kernel won't
even be loaded (from what you've described). Or do you get
the kernel (white) output already? Compare:
https://www.freebsd.org/doc/handbook/boot-introduction.html
https://www.freebsd.org/doc/en_US.ISO8859-1/books/arch-handbook/boot-overview.html

Last message:
FreeBSD/x86 bootstrap loader, Revision 1.1
(​Fri

​Jul
 2
​1​
0
​2​
:
​03
:08 UTC 201
​7​ root at releng2.nyi.freebsd.org
)

After that system hangs.

Maybe some updates via freebsd-update fetch|install, not sure.

That _might_ have caused it...

How repair it?
​I update system to 11.1-Release but have a same boot problem​