add fuser package

install_orbit_environment.sh

@@ -6,7 +6,7 @@ if [[ -e "/etc/needrestart/needrestart.conf" ]]; then
     sudo sed -E -i "s/(^|#)\\\$nrconf\{kernelhints\}\s*=.*/\$nrconf\{kernelhints\} = -1;/g" /etc/needrestart/needrestart.conf
 fi
 sudo apt update
-sudo apt install -y git
+sudo apt install -y git psmisc #fuser
 org_pwd=$(pwd)
 if [[ "$ubuntu_version" > '22' ]]; then #In ubuntu 22, install linux-libc-dev instead of linux-kernel-headers
 	sudo apt install -y linux-libc-dev software-properties-common build-essential