Don't install n within images

src/freedombone-utils-nodejs

@@ -176,7 +176,7 @@ function nodejs_install_npm_secondary {
 
     # deliberate second install of npm
     echo $"Installing npm ${NPM_VERSION}"
-    $mesh_install_nodejs_prefix npm install --arch=$NPM_ARCH -g npm@${NPM_VERSION} --save
+    $mesh_install_nodejs_prefix npm install -g npm@${NPM_VERSION} --save
     if [ -f "$rootdir/root/.npm-global/lib/node_modules/npm/bin/npm" ]; then
         cp "$rootdir/root/.npm-global/lib/node_modules/npm/bin/npm" "$rootdir/usr/local/bin/npm"
         cp "$rootdir/root/.npm-global/lib/node_modules/npm/bin/npm" "$rootdir/usr/bin/npm"
@@ -188,9 +188,12 @@ function nodejs_install_npm_secondary {
 }
 
 function nodejs_install_n {
+    if [ "$rootdir" ]; then
+        return
+    fi
     # update from the old debian nodejs version
     echo $"Installing n ${NODEJS_N_VERSION} on ${NPM_ARCH}"
-    $mesh_install_nodejs_prefix npm install --arch=$NPM_ARCH -g n@${NODEJS_N_VERSION} --save
+    $mesh_install_nodejs_prefix npm install -g n@${NODEJS_N_VERSION} --save
 }
 
 function nodejs_install_from_n {
@@ -202,7 +205,7 @@ function nodejs_install_from_n {
     fi
 
     echo $"Installing nodejs ${NODEJS_VERSION} via n"
-    $mesh_install_nodejs_prefix n --arch $N_ARCH ${NODEJS_VERSION}
+    $mesh_install_nodejs_prefix n ${NODEJS_VERSION}
     nodejs_fix_cpu_detection
     cp "$rootdir/root/npm" "$rootdir/usr/bin/npm"
     cp "$rootdir/root/npm" "$rootdir/usr/local/bin/npm"