Step failed, need help.

[teakave]

Just got back into Debian and installed 9.4, everything went smoothly until a step failed, "Select and Install software" I tried everything to get it fixed, went over countless forums but I found nothing that worked.

[Segfault]

Well, administering a computer is interaction between OS/software and you, the admin. In other words, if something does not work then you diagnose the problem and fix it. Since you have provided no details that's all I can say.

[jibberjabber]

One reason it would fail is if you have no internet connection. Another thing that is kind of odd, and I don't know why or how it would affect it, but before the "Select and Install software" step, there is also a option asking if you want to allow them to know what packages you select, I think they call it the "popcon",
https://popcon.debian.org/
A strange thing, in the past , when I was trying to install Debian, if I selected NO, and did not want to participate, the installation failed, at the "Select and Install software" step, so when I tried again, I selected YES,... and the installation proceeds smoothly. Don't ask me why it is like that, I don't know.
But on more then one occasion, the same thing occurred, and the same, when I selected YES for the popcon option, it went on smoothly and installed the packages I selected.
Some more and better details would help, IE, like exactly step by step, what you do in the install, and also specifically, which ISO / version of Debian you are trying to install, ? netinstall ?, DVD, or ????

[stevepusser]

Are you trying to install using wi-fi as your Net connection? Since 99% of wi-fi hardware now needs non-free firmware, and even some of the wired NICs, you could try an ISO image that contains the firmware.

[acewiza]

Are you trying to install using wi-fi as your Net connection?

Good call. Not sure, but I believe that is probably the 1st place where install tries to get out to the network. Despite not knowing what happened during network detection, I'm willing to bet that is where the fault lies.

[Segfault]

Guessing can be fun indeed. Looking at logs is sooo boring, solution may come too fast.