code optimization (#1025)

- remove mc from Ubuntu
- change archive mirrors for Ubuntu
- small tweaks

install/shinobi-v5-install.sh

@@ -71,6 +71,12 @@ RESOLVEDIP=$(getent hosts github.com | awk '{ print $1 }')
 if [[ -z "$RESOLVEDIP" ]]; then msg_error "DNS Lookup Failure"; else msg_ok "DNS Resolved github.com to ${BL}$RESOLVEDIP${CL}"; fi
 set -e
 
+CODENAME=$(cat /etc/*release | grep "UBUNTU_CODENAME" | awk '{print substr($1, 17, length($1)) }')
+cat <<EOF >/etc/apt/sources.list
+deb http://mirror.genesisadaptive.com/ubuntu/ $CODENAME main 
+deb-src http://mirror.genesisadaptive.com/ubuntu/ $CODENAME main 
+EOF
+
 msg_info "Updating Container OS"
 $STD apt-get update --fix-missing
 $STD apt-get -y upgrade
@@ -86,7 +92,7 @@ if [ "$ubuntuversion" = "18" ] || [ "$ubuntuversion" -le "18" ]; then
 fi
 
 msg_info "Installing Dependencies"
-$STD apt-get install -y curl sudo git mc
+$STD apt-get install -y curl sudo git
 $STD apt-get install -y make zip net-tools
 $STD apt-get install -y gcc g++ cmake
 msg_ok "Installed Dependencies"
@@ -145,10 +151,10 @@ $STD pm2 list
 msg_ok "Installed Shinobi"
 
 echo "export TERM='xterm-256color'" >>/root/.bashrc
+echo -e "$APPLICATION LXC provided by https://tteck.github.io/Proxmox/\n" > /etc/motd
+chmod -x /etc/update-motd.d/*
 if ! getent shadow root | grep -q "^root:[^\!*]"; then
   msg_info "Customizing Container"
-if [ "$PCT_OSTYPE" == "debian" ]; then rm -rf /etc/motd /etc/update-motd.d/10-uname; else chmod -x /etc/update-motd.d/*; fi
-  touch ~/.hushlogin
   GETTY_OVERRIDE="/etc/systemd/system/container-getty@1.service.d/override.conf"
   mkdir -p $(dirname $GETTY_OVERRIDE)
   cat <<EOF >$GETTY_OVERRIDE