added check for vm or lxc for qemu-guest-agent

ubuntu/ubuntu-essentials.sh

@@ -18,8 +18,22 @@ apt-get remove os-prober -y
 apt-get update
 apt-get upgrade -y
 
+# check if vm or lxc
+if [[ ! -d /dev/disk/by-id ]]
+    then
+        apt-get install -y qemu-guest-agent
+    else
+        isInFile=$(ls /dev/disk/by-id | grep -c "QEMU")
+            if [ $isInFile -eq 0 ]
+                then
+                    apt-get remove -y qemu-guest-agent
+                else
+                    apt-get install -y qemu-guest-agent
+            fi
+fi
+
 # download and install packages
-apt-get install -y ncdu pwgen qemu-guest-agent sudo nano curl wget zip unzip git rsync man-db cifs-utils nfs-common parted libtalloc2 libwbclient0 net-tools gnupg apt-transport-https tmux gdisk bash-completion
+apt-get install -y ncdu pwgen sudo nano curl wget zip unzip git rsync man-db cifs-utils nfs-common parted libtalloc2 libwbclient0 net-tools gnupg apt-transport-https tmux gdisk bash-completion
 
 # add akanealw user if not existing
 isInFile=$(cat /etc/passwd | grep -c "akanealw")