I spent 3 days until i managed to make my USB wireless adapter work in Debian. No! You should not spend 3 days installing an USB wireless adapter in GNU/Linux, i made a huge mistake not reading very very carefully the debian wiki and after i focused a little i realised that i could install the thing in a few minutes, and for demonstration i’ll use my case so you should extrapolate to yours:
1. To start go here: http://wiki.debian.org/WiFi.
2. Read the page entirely.
4. At this moment i made a mistake, i installed the wrong driver for my chipset. If i read the line in step 3, i could see that my chipset is RT2070 and i thought it was rt73usb. So, note your chipset, see on the debian wiki WiFi page at point 1 that your chipset is listed and follow the link to how to install the driver. If your chipset is not on this page (like in my case) search for your chipset on a search engine, google search for debian rt2070 gave me this first page: http://wiki.debian.org/rt2870sta. You may ask why i went to google which send me back to debian wiki, i don’t know why but searching for rt2070 on the wiki didn’t gave me any results.
5. Anyway, once on the driver page, follow every step and you should be fine installing the driver. If something doesn’t work, the Troubleshooting on the same page is your best friend in 90% of cases.
7. Configuring the wireless network is as easy as reading the instructions (you might have some problems if you can’t read).
8. After i corrected the driver installation, configuring the network was a snap and the connection was up and running.
So, to wrap up, it’s just reading carefully and following some easy steps, maybe my tutorial seams long but once you do it you’ll see that is as easy as installing a USB wireless adapter and setting up a wireless conncetion on every operating system.