If you don't have a eduroam network secret, you can get it here: https://login.sys.kth.se/peap.html
Connecting to eduroam with Linux is easy if you use NetworkManager. Modern Linux distributions such as Ubuntu, Debian, and Fedora, come with NetworkManager pre-installed. You will also need a wireless network card which is supported by NetworkManager (ndiswrapper should work too).
The following instructions apply to Ubuntu 8.04, and something similar should work on other distributions as well.
If you can't use network manager here is an example for wpa_supplicant.conf, which is usually located in /etc or /etc/wpa_supplicant/.
ARCH Linux:
A NETCFG version - example configuration. Located as /etc/network.d/eduroam.
For IWD see eduroam info in IWD manual - https://wiki.archlinux.org/index.php/Iwd#Eduroam
A user contributed version of the CA CERTS for KTH eduroam that works on ARCH with IWD (new 2021-02-14)
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