I recently created a custom minimal image for Raspberry Pi 4 board using the Yocto build tool, my goal is to control the board with ssh protocol with my desktop, to do so i tried connecting it to wifi. I configured wpa_supplicant.conf and managed to connect my raspberry to the network but with no internet access. After the wpa_supplicant -B -Dnl80211 -c /etc/wpa_supplicant.conf -iwlan0
I do get :
wlan0 : Associated with XX:XX:XX:XX:XX:XX
wlan0: WPA: Key negociation completed with XX:XX:XX:XX:XX:XX [PTK=CCMP GTK=TKIP]
CTRL-EVENT-CONNECTED - Connection to XX:XX:XX:XX:XX:XX completed [id=0 id_str=]
Then I realized that dhcpd commands weren't working and the library wasn't available on my image. How can I add this library on my image, can I install it directly on my micro SD or must I build a new image? My bblayers.conf looks like this
BBLAYERS ?= " \
/home/ryan/poky/meta \
/home/ryan/poky/meta-poky \
/home/ryan/poky/meta-yocto-bsp \
/home/ryan/poky/meta-raspberrypi \
/home/ryan/poky/meta-openembedded/meta-oe \
/home/ryan/poky/meta-openembedded/meta-python \
/home/ryan/poky/meta-openembedded/meta-multimedia \
/home/ryan/poky/meta-openembedded/meta-networking \
/home/ryan/poky/meta-openembedded/meta-filesystems \"
And inside meta there is : recipes-connectivity which has a dhcpcd file, should have it been added during the build?
There is a dhcpcd recipe in:
meta-openembedded/meta-networking/recipes-connectivity/dhcpcd
which contains the description for what you need:
SECTION = "console/network"
SUMMARY = "dhcpcd - a DHCP client"
DESCRIPTION = "dhcpcd runs on your machine and silently configures your computer to work on the attached networks without trouble and mostly without configuration."
So, just add it to your image:
IMAGE_INSTALL_append = " dhcpcd"
There is dhcp recipe also in poky if you want the full server/client package
poky/meta/recipes-connectivity/dhcp/
Also, busybox has it own DHCP client udhcpc.
I assume that busybox is integrated into your build, so check for udhcpc command.