Fix install.sh for Debian (Chia-Network#4152) (Chia-Network#4867)

install.sh

@@ -1,10 +1,16 @@
 #!/bin/bash
 set -e
 UBUNTU=false
+DEBIAN=false
 if [ "$(uname)" = "Linux" ]; then
 	#LINUX=1
 	if type apt-get; then
-		UBUNTU=true
+		OS_ID=$(lsb_release -is)
+		if [ "$OS_ID" = "Debian" ]; then
+			DEBIAN=true
+		else
+			UBUNTU=true
+		fi
 	fi
 fi
 
@@ -35,18 +41,22 @@ fi
 if [ "$(uname)" = "Linux" ]; then
 	#LINUX=1
 	if [ "$UBUNTU" = "true" ] && [ "$UBUNTU_PRE_2004" = "1" ]; then
-		# Debian/Ubuntu
-		echo "Installing on Ubuntu/Debian pre 20.04 LTS."
+		# Ubuntu
+		echo "Installing on Ubuntu pre 20.04 LTS."
 		sudo apt-get update
 		sudo apt-get install -y python3.7-venv python3.7-distutils
 	elif [ "$UBUNTU" = "true" ] && [ "$UBUNTU_PRE_2004" = "0" ] && [ "$UBUNTU_2100" = "0" ]; then
-		echo "Installing on Ubuntu/Debian 20.04 LTS."
+		echo "Installing on Ubuntu 20.04 LTS."
 		sudo apt-get update
 		sudo apt-get install -y python3.8-venv python3-distutils
 	elif [ "$UBUNTU" = "true" ] && [ "$UBUNTU_2100" = "1" ]; then
-		echo "Installing on Ubuntu/Debian 21.04 or newer."
+		echo "Installing on Ubuntu 21.04 or newer."
 		sudo apt-get update
 		sudo apt-get install -y python3.9-venv python3-distutils
+	elif [ "$DEBIAN" = "true" ]; then
+		echo "Installing on Debian."
+		sudo apt-get update
+		sudo apt-get install -y python3-venv
 	elif type pacman && [ -f "/etc/arch-release" ]; then
 		# Arch Linux
 		echo "Installing on Arch Linux."