In the OpenBSD installation, in the question "What timezone are you
in?" there is an option ("DeNoronha East" in Brazil timezones) that
makes you enter in a no return cycle, because of the space char in the
name of the timezone. All two words timezone use underscore instead of
space (e.g. Buenos_Aires) except DeNoronha East which has this output
when getting chosen:
What timezone are you in? ('?' for list) [Canada/Mountain] ?
/* list of all timezones */
What timezone are you in? ('?' for list) [Canada/Mountain] Brazil
What sub-timezone of 'Brazil' are you in? ('?' for list) ?
Acre DeNoronha East West
What sub-timezone of 'Brazil' are you in? ('?' for list) DeNoronha East
What sub-timezone of 'Brazil/DeNoronha East' are you in? ('?' for list) ?
.
What sub-timezone of 'Brazil/DeNoronha East' are you in? ('?' for list) .
What sub-timezone of 'Brazil/DeNoronha East/.' are you in? ('?' for list) ?
.
What sub-timezone of 'Brazil/DeNoronha East/.' are you in? ('?' for
list) oh shit
What sub-timezone of 'Brazil/DeNoronha East/./oh shit' are you in?
('?' for list)
There is no way to successfully choose that option. Colons,
semi-colons or escaping the space with a slash wont work, and once
chosen you can't go back and you have to quit the installation with
Ctrl+C
this was OpenBSD 4.9 installer; install49.iso;md5 sum:
c50e0889651cac33a468eeafb3d8e955