Joel is mostly right. I would just like to make the addendum that many wireless cards require non-free firmware blobs, not all of them. Some of them have free drivers. If you want an easy way to find wireless cards which work either with free drivers or without any drivers, check out the FSF's list of "Repects Your Freedom" hardware. For a more direct route, and possibly a more up-to-date list, check out Technoetic's wireless cards: https://tehnoetic.com/adapters
I personally don't mind non-free drivers, but I know some folks do, which is why Debian no longer ships with non-free drivers and it's also the raison d'etre for the FSF's "Repects Your Freedom" list. Josh On 10/24/17 10:29 AM, Joel Brunetti wrote: > The most common problem with wireless cards is that they require > non-free firmware blobs. These used to be packaged with the kernel but > Debian has packaged them separately for the past couple of releases. > > The easiest thing you can do is perform the install using a wired > network which is much less likely to require non-free firmware. Once > the install is complete be sure to install the firmware-linux-nonfree > package before trying to use your wireless network. As the name > suggests, it is located in the non-free repository which you will need > to add to your sources. > > If installing from a wired network is not an option, try the unoffical > installer which includes the non-free firmware. It can be found > here: > https://cdimage.debian.org/cdimage/unofficial/non-free/cd-including-firmware/9.2.1+nonfree/amd64/iso-cd/ > > Good luck! > > On 24 October 2017 at 06:41, eamanu15 . <emmanuelaria...@gmail.com > <mailto:emmanuelaria...@gmail.com>> wrote: > > Hello, > > I am trying to install Debian 9 (debian-9.2.1-amd64.netinst.iso) > using USB booting method. > > My laptop is a Samsung RV420 - Core i5 - 4GB RAM - 640GB HDD > > The installer detect my two network card (ethernet and wireless). > I use the wireless card. > > I complete the ESSID and password for the wireless network. But > (after complete the password) the installer give the error: > > Attempting to find an available wireless network Failed. > > What could be the problem? > > Regard! > eamanu > -- > Arias Emmanuel > http://eamanu.com > >
