Just for your info, maybe it does help others: I was able to bring up
Overo air wifi to connect to wpa encrypted wlan.
For this, I found
1. Edit /etc/network/interfaces for wlan0 to have only:
iface wlan0 inet dhcp
pre-up wpa_supplicant -Dwext -iwlan0 -c/etc/wpa_supplicant.conf -B
down killall wpa_supplicant
2. Create /etc/wpa_supplicant.conf containing:
3. Reboot :) That's it.
Then I was able to use opkg
opkg install foo
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