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-rw-r--r--meta-netboot/recipes-core/initramfs-netboot/files/init.sh32
1 files changed, 29 insertions, 3 deletions
diff --git a/meta-netboot/recipes-core/initramfs-netboot/files/init.sh b/meta-netboot/recipes-core/initramfs-netboot/files/init.sh
index 7b8fbb518..50d62472a 100644
--- a/meta-netboot/recipes-core/initramfs-netboot/files/init.sh
+++ b/meta-netboot/recipes-core/initramfs-netboot/files/init.sh
@@ -57,6 +57,29 @@ check_debug() {
esac
}
+find_active_interface() {
+ [[ ! -d /sys/class/net ]] && { log_error "find_active_interface: /sys/class/net doesn't exist"; return 2; }
+ local iface
+ for x in $(ls -d /sys/class/net/* 2>/dev/null); do
+ iface=$(basename $x)
+ # find interfaces with:
+ # - type == 1 (ethernet)
+ # - not wireless
+ # - with state up
+
+ [[ $(cat $x/type) != 1 ]] && continue
+ [[ -d $x/wireless ]] && continue
+ [[ $(cat $x/operstate) != "up" ]] && continue
+
+ log_info "find_active_interface: first active interface is $iface"
+ echo $iface
+ return 0
+ done
+
+ log_error "Unable to find any active network interface."
+ return 1
+}
+
# -------------------------------------------
export PATH=/sbin:/usr/sbin:/bin:/usr/bin
@@ -131,9 +154,12 @@ pivot_root . boot/initramfs || bail_out "pivot_root failed."
# workaround for connman (avoid bringing down the network interface used for booting, disable DNS proxy)
if [[ -f /lib/systemd/system/connman.service ]]; then
- log_info "Adjusting Connman configuration"
- iface=$(ip -o link show up | tr ':' ' ' | awk '{print $2}' | grep -v -e "^lo$" | head -1)
- sed -i "s|connmand -n\$|connmand -r -n -I $iface|g" /lib/systemd/system/connman.service
+ newopts="-r -n"
+ iface=$(find_active_interface)
+ [[ -n "$iface" ]] && newopts="$newopts -I $iface"
+
+ log_info "Adjusting Connman command line. Will be: 'connmand $newopts'"
+ sed -i "s|connmand -n\$|connmand $newopts|g" /lib/systemd/system/connman.service
fi
# also use /proc/net/pnp to generate /etc/resolv.conf