Newbie help - transfer roms & setting up sound

[Espen]

Hi,
I am trying to set up retropie on a raspberry 2, and have several problems i hope someone could help me with.
The root cause for these problems is that I have no experience with linux and don't really understand it. I am following the instructions on forums, wikis and youtube, but more often than not the response from the pi is not matching what it should according to the instructions. So here I have 2 problems i imagine have an easy fix, but I have not been able to get around it. Any help is much appreciated.

Status is that I have a pi set up with a NES controller and the games that follows with the "retropie-v3.6-rpi2_rpi3.img". The main goal is to add commodore 64 emulator. For now i am content with getting sound(i have none) and nes+snes games. I understand that the nes+snes emulator is preinstalled on the image, but will only become if you add some roms.

The problems i need help with is:
1: Transferring roms from USB. I am following this guide:
1- (ensure that your USB is formatted to FAT32)
2- first create a folder called retropie on your USB stick
3- plug it into the pi and wait for it to finish blinking
4- pull the USB out and plug it into a computer
5- add the roms to their respective folders (in the retropie/roms folder)
6- plug it back into the raspberry pi
7- wait for it to finish blinking
8- refresh emulationstation by pressing F4, or choosing quit from the start menu

I am using a FAT32 drive, following all the steps, but nothing. I believe that on pt 5 the pi should have added a lot of different folders, but this is not happening. Furthermore I try to follow this tutorial:

After the "sudo ./retropie_setup.sh" i get error messages. About 50 lines, starting with:
"Did not find needed package(s): git dialog wget gcc-4,7 build-essential xmlstarlet. I am trying to install them now."
(and a bunch of lines, starting with "Hit" etc and "Ign".)
35.1mb 10% packages
Reading package lists.... Error!
E: the package lists could not be parsened or opened.

I need some advise on what to do here, I fail to understand what to do.

2: Configure audio
I try to configure sound through emulation station"configure audio settings".
I get the same message:
"Did not find needed package(s): git dialog wget gcc-4,7 build-essential xmlstarlet. I am trying to install them now."
(and the rest)
"Unable to install packages required by retropie/home/pi/retropie_setup.sh"

Any help is much appreciated. Please keep in mind I need to get instructions on a really detailed level. Like an complete idiot.

Thanks in advance of any help.

[herb_fargus]

@Espen the reason you are getting those errors with the setup script is you're not connected to the Internet, it can't install needed packages.

For the USB transfer it should work. You can try reenabling the usbromservice from the setup script and try it again

For the sound see this page:

https://github.com/retropie/retropie-setup/wiki/Sound-Issues

Forcing it to HDMI almost always fixes the sound. (I think that may also work with the audio settings in the RetroPie menu that you mentioned trying)

There are also other methods than USB transfer for getting roms onto your pi: https://github.com/retropie/retropie-setup/wiki/First-Installation#transferring-roms

[Espen]

Thanks for the fast feedback Herb,

Good to hear, then it should only be a matter of getting it online to fix almost everything.
I have a ethernet cable connected to the pi but i am not able to get it online. I understand from forums it should be no configuration needed, just plug and play.

From "ifconfig" i get this:
et0 Link encap:ethernet HWaddr b8:27:eb2b:cd:90
inet addr:192:168.1.250 Bcast:192.168.1.255 Mask:255.255.255.0
UP BROADCAST RUNNING MULITCAST MTU:1500 Metric:1
RX Packets:437 errors:0 dropped:0 overruns:0 frame:0
TX Packets:131 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:100 (100.0 B) TX bytes:100 (100.0 B)

l0 Linkencap:Local Loopback
inet addr:127.0.0.1 Mask: 255.0.0.0
UP LOOPBACK RUNNING MTU:65536 Metric:1
RX Packets:2 errors:0 dropped:0 overruns:0 frame:0
TX Packets:2 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:100 (100.0 B) TX bytes:100 (100.0 B)

Any suggestions?

I also still hope to get some help to understand what I am doing wrong with the USB. I tried reneabling the USB rom service. I also need some guide here. I found an instruction on how to do it, and used these commands.
cd RetroPie-Setup
sudo ./retropie_setup.sh
However, I then get the same error message I described in the first post.

Regarding sound. I added "hdmi_drive=2" to the config.txt using "sudo nano" command to force HDMI. This did not change anything, however I should add that the pi is connected to the monitor(not a tv with speakers), and I have a head set connected directly to the pi. But I believe that when the internet is connected I should be able to make this work anyway.

Thanks.