Comment 1 for bug 1627643

With today image (04-Oct-2016 - b99626f36cddae872e43ef692c4b1b9f ubuntu-core-16-pi3.img.xz) i'm unable to reproduce it:

1) on first boot, it reaches the config screen, i correctly insert my wifi SSID and password, but when it tries to associate to my wifi it generically fails but i don't get any particular kernel msg anywhere (nothing on ttl serial nor screen)

then i pull the plug and reboot the board

2) on second boot it reaches the config screen again, but the wifi details are already filled in, the board is associated and it has an ip (i double checked this on the AP too), but when i tell it to apply the config and move to the next step, it generically fails again and on the ttl serial i see these messages:

...
[ 14.247344] brcmf_sdio_drivestrengthinit: No SDIO Drive strength init done for chip 43430 rev 1 pmurev 24
[ 14.556685] brcmf_c_preinit_dcmds: Firmware version = wl0: May 27 2016 00:13:38 version 7.45.41.26 (r640327) FWID 01-df77e4a7
[ 14.611781] brcmf_cfg80211_reg_notifier: not a ISO3166 code
[ 15.249810] brcmf_cfg80211_reg_notifier: not a ISO3166 code
[ 19.841564] brcmf_add_if: ERROR: netdev:wlan0 already exists
[ 19.852874] brcmf_add_if: ignore IF event
[ 20.151206] brcmf_add_if: ERROR: netdev:wlan0 already exists
[ 20.162674] brcmf_add_if: ignore IF event

Press enter to configure.
[ 200.706137] brcmf_cfg80211_reg_notifier: not a ISO3166 code
[ 200.748082] brcmf_sdio_dpc: failed backplane access over SDIO, halting operation
[ 200.748092] brcmf_cfg80211_get_tx_power: error (-52)
...

but no traces of an oops.

Now i'll try this kernel / boot firmware / etc on a classic image to see if it works there and if i get any of the above errors.

Question: how do i install and run the 'netconfig' (i think that's the name of the software we run on boot to configure the board) on a classic image?