Update haos-vm.sh

- Add a function to verify if the user is the root user (without using sudo).
- Set default disk cache to writethrough
- Set default CPU type to host

vm/haos-vm.sh

@@ -84,9 +84,19 @@ function msg_error() {
   echo -e "${BFR} ${CROSS} ${RD}${msg}${CL}"
 }
 
+function check_root() {
+  if [[ "$(id -u)" -ne 0 || $(ps -o comm= -p $PPID) == "sudo" ]]; then
+    clear
+    msg_error "Please run this script as root."
+    echo -e "\nExiting..."
+    sleep 2
+    exit
+  fi
+}
+
 function pve_check() {
   if ! pveversion | grep -Eq "pve-manager/(7\.[2-9]|8\.[0-9])"; then
-    echo -e "${CROSS} This version of Proxmox Virtual Environment is not supported"
+    msg_error "This version of Proxmox Virtual Environment is not supported"
     echo -e "Requires PVE Version 7.2 or higher"
     echo -e "Exiting..."
     sleep 2
@@ -96,7 +106,7 @@ function pve_check() {
 
 function arch_check() {
   if [ "$(dpkg --print-architecture)" != "amd64" ]; then
-    echo -e "\n ${CROSS} This script will not work with PiMox! \n"
+    msg_error "This script will not work with PiMox! \n"
     echo -e "Exiting..."
     sleep 2
     exit
@@ -127,9 +137,9 @@ function default_settings() {
   VMID="$NEXTID"
   FORMAT=",efitype=4m"
   MACHINE=""
-  DISK_CACHE=""
+  DISK_CACHE="cache=writethrough,"
   HN="haos$stable"
-  CPU_TYPE=""
+  CPU_TYPE=" -cpu host"
   CORE_COUNT="2"
   RAM_SIZE="4096"
   BRG="vmbr0"
@@ -140,9 +150,9 @@ function default_settings() {
   echo -e "${DGN}Using HAOS Version: ${BGN}${BRANCH}${CL}"
   echo -e "${DGN}Using Virtual Machine ID: ${BGN}${VMID}${CL}"
   echo -e "${DGN}Using Machine Type: ${BGN}i440fx${CL}"
-  echo -e "${DGN}Using Disk Cache: ${BGN}Default${CL}"
+  echo -e "${DGN}Using Disk Cache: ${BGN}Writethrough${CL}"
   echo -e "${DGN}Using Hostname: ${BGN}${HN}${CL}"
-  echo -e "${DGN}Using CPU Model: ${BGN}Default${CL}"
+  echo -e "${DGN}Using CPU Model: ${BGN}Host${CL}"
   echo -e "${DGN}Allocated Cores: ${BGN}${CORE_COUNT}${CL}"
   echo -e "${DGN}Allocated RAM: ${BGN}${RAM_SIZE}${CL}"
   echo -e "${DGN}Using Bridge: ${BGN}${BRG}${CL}"
@@ -340,6 +350,7 @@ function start_script() {
   fi
 }
 
+check_root
 arch_check
 pve_check
 ssh_check