BeagleBone Black as 6LoWPAN Border Router

Hi,

 I am trying to setup BBB as Contiki-6LoWPAN Border Router following the 
instruction from here 
[http://processors.wiki.ti.com/index.php/Contiki-6LOWPAN-BBB#IPv4_network](http://processors.wiki.ti.com/index.php/Contiki-6LOWPAN-BBB#IPv4_network) 
As my network is IPv4 I need to install a number of packages according to 
instructions:
The problems I have:
1)
root@beaglebone:~/radvd/radvd-1.15# apt-get install libcheck-dev 
libdaemon-dev
Reading package lists... Done
Building dependency tree
Reading state information... Done
E: Unable to locate package libcheck-dev

2) after disabling Conman, I lost SSH
systemctl stop connman.service 
systemctl disable connman.service 

cat > /etc/network/interfaces <<EOF # The loopback network interface auto 
lo iface lo inet loopback # The primary network interface auto eth0 iface 
eth0 inet static address 192.168.0.190 netmask 255.255.255.0 gateway 
192.168.0.1 EOF

cat > /etc/resolv.conf <<EOF nameserver 8.8.8.8 EOF

From here SSH is gone and no network

Jan