Image Creation Message Corrected + ucloud-host read Physical Device for VXLAN from .env

docs/source/introduction/installation.rst

@@ -40,7 +40,7 @@ Install Dependencies
 
     apk add git python3 alpine-sdk python3-dev etcd etcd-ctl openntpd \
             libffi-dev openssl-dev make py3-protobuf py3-tempita chrony \
-            qemu qemu-system-x86_64
+            qemu qemu-system-x86_64 qemu-img
     
     pip3 install pipenv
 
@@ -148,6 +148,8 @@ You just need to update **AUTH_SEED** in the below code to match your auth's see
     ssh_username=meow
     ssh_pkey="~/.ssh/id_rsa"
 
+    VXLAN_PHY_DEV="eth0"
+
     EOF
 
 
@@ -166,6 +168,10 @@ Install and configure ucloud-cli
     UCLOUD_API_SERVER=http://localhost:5000
     EOF
 
+    mkdir /var/www/
+    mkdir /var/image/
+    mkdir /var/vm/
+
 
 Environment Variables and aliases
 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~