nguyentruongtho · December 13, 2020 12:14
diff --git a/win.sh b/win.sh
 #!/bin/bash
 #
 #Vars
 mounted=0
 GREEN='\033[1;32m';GREEN_D='\033[0;32m';RED='\033[0;31m';YELLOW='\033[0;33m';BLUE='\033[0;34m';NC='\033[0m'
 # Virtualization checking..
 virtu=$(egrep -i '^flags.*(vmx|svm)' /proc/cpuinfo | wc -l)
 if [ $virtu = 0 ] ; then echo -e "[Error] ${RED}Virtualization/KVM in your Server/VPS is OFF\nExiting...${NC}";
 else
 #
 # Deleting Previous Windows Installation by the Script
 #umount -l /mnt /media/script /media/sw
 #rm -rf /mediabots /floppy /virtio /media/* /tmp/*
 #rm -f /sw.iso /disk.img 
 # installing required Ubuntu packages
 dist=$(hostnamectl | egrep "Operating System" | cut -f2 -d":" | cut -f2 -d " ")
 if [ $dist = "CentOS" ] ; then
 	printf "Y\n" | yum install sudo -y
 	sudo yum install wget vim curl genisoimage -y
 	# Downloading Portable QEMU-KVM
 	echo "Downloading QEMU"
 	sudo yum update -y
 	sudo yum install -y qemu-kvm
 elif [ $dist = "Ubuntu" -o $dist = "Debian" ] ; then
 	printf "Y\n" | apt-get install sudo -y
 	sudo apt-get install vim curl genisoimage -y
 	# Downloading Portable QEMU-KVM
 	echo "Downloading QEMU"
 	sudo apt-get update
 	sudo apt-get install -y qemu-kvm
 fi
 sudo ln -s /usr/bin/genisoimage /usr/bin/mkisofs
 # Downloading resources
 sudo mkdir /mediabots /floppy /virtio
 link1_status=$(curl -Is http://download.microsoft.com/download/6/2/A/62A76ABB-9990-4EFC-A4FE-C7D698DAEB96/9600.17050.WINBLUE_REFRESH.140317-1640_X64FRE_SERVER_EVAL_EN-US-IR3_SSS_X64FREE_EN-US_DV9.ISO | grep HTTP | cut -f2 -d" " | head -1)
 link2_status=$(curl -Is https://ia601506.us.archive.org/4/items/WS2012R2/WS2012R2.ISO | grep HTTP | cut -f2 -d" ")
 #sudo wget -P /mediabots https://archive.org/download/WS2012R2/WS2012R2.ISO # Windows Server 2012 R2 
 if [ ! -f /mediabots/WS2012R2.ISO ]; then
 if [ $link1_status = "200" ] ; then 
 	sudo wget -O /mediabots/WS2012R2.ISO http://download.microsoft.com/download/6/2/A/62A76ABB-9990-4EFC-A4FE-C7D698DAEB96/9600.17050.WINBLUE_REFRESH.140317-1640_X64FRE_SERVER_EVAL_EN-US-IR3_SSS_X64FREE_EN-US_DV9.ISO 
 elif [ $link2_status = "200" -o $link2_status = "301" -o $link2_status = "302" ] ; then 
 	sudo wget -P /mediabots https://ia601506.us.archive.org/4/items/WS2012R2/WS2012R2.ISO
 else
 	echo -e "${RED}[Error]${NC} ${YELLOW}Sorry! None of Windows OS image urls are available , please report about this issue on Github page : ${NC}https://github.com/mediabots/Linux-to-Windows-with-QEMU"
 	echo "Exiting.."
 	sleep 30
 	exit 1
 fi
 fi
 if [ ! -f /floppy/Firefox.exe ]; then
 sudo wget -P /floppy https://ftp.mozilla.org/pub/firefox/releases/64.0/win32/en-US/Firefox%20Setup%2064.0.exe
 sudo mv /floppy/'Firefox Setup 64.0.exe' /floppy/Firefox.exe
 fi
 if [ ! -f /floppy/PROWinx64.exe ]; then
 sudo wget -P /floppy https://downloadmirror.intel.com/23073/eng/PROWinx64.exe # Intel Network Adapter for Windows Server 2012 R2 
 fi
 # Powershell script to auto enable remote desktop for administrator
 sudo touch /floppy/EnableRDP.ps1
 sudo echo -e "Set-ItemProperty 'HKLM:\SYSTEM\CurrentControlSet\Control\Terminal Server\' -Name \"fDenyTSConnections\" -Value 0" >> /floppy/EnableRDP.ps1
 sudo echo -e "Set-ItemProperty 'HKLM:\SYSTEM\CurrentControlSet\Control\Terminal Server\WinStations\RDP-Tcp\' -Name \"UserAuthentication\" -Value 1" >> /floppy/EnableRDP.ps1
 sudo echo -e "Enable-NetFirewallRule -DisplayGroup \"Remote Desktop\"" >> /floppy/EnableRDP.ps1
 # Downloading Virtio Drivers
 if [ ! -f /virtio/virtio-win.iso ]; then
 sudo wget -P /virtio https://fedorapeople.org/groups/virt/virtio-win/direct-downloads/stable-virtio/virtio-win.iso
 fi
 # creating .iso for Windows tools & drivers
 sudo mkisofs -o /sw.iso /floppy
 #
 #Enabling KSM
 sudo echo 1 > /sys/kernel/mm/ksm/run
 #Free memories
 sync; sudo echo 3 > /proc/sys/vm/drop_caches
 # Gathering System information
 idx=0
 fs=($(df | awk '{print $1}'))
 for j in $(df | awk '{print $6}');do if [ $j = "/" ] ; then os=${fs[$idx]};echo $os;fi;idx=$((idx+1));done
 #
 ip=$(curl ifconfig.me)
 echo "Linux Distro : "$dist 
 virtualization=$(lscpu | grep Virtualization: | head -1 | cut -f2 -d":" | awk '{$1=$1;print}')
 echo "Virtualization : "$virtualization
 model=$(lscpu | grep "Model name:" | head -1 | cut -f2 -d":" | awk '{$1=$1;print}')
 echo "CPU Model : "$model
 cpus=$(lscpu | grep CPU\(s\) | head -1 | cut -f2 -d":" | awk '{$1=$1;print}')
 echo "No. of CPU cores : "$cpus
 if [ $dist = "Debian" ] ;then availableRAMcommand="free -m | head -2 | tail -1 | awk '{print \$4}'" ; elif [ $dist = "Ubuntu" -o $dist = "CentOS" ] ;then availableRAMcommand="free -m | tail -2 | head -1 | awk '{print \$7}'"; fi
 availableRAM=$(echo $availableRAMcommand | bash)
 echo "Available RAM : "$availableRAM" MB"
 diskNumbers=$(fdisk -l | grep "Disk /dev/" | wc -l)
 partNumbers=$(lsblk | egrep "part" | wc -l) # $(fdisk -l | grep "^/dev/" | wc -l) 
 firstDisk=$(fdisk -l | grep "Disk /dev/" | head -1 | cut -f1 -d":" | cut -f2 -d" ")
 freeDisk=$(df | grep "^/dev/" | awk '{print$1 " " $4}' | sort -g -k 2 | tail -1 | cut -f2 -d" ")
 # Windows required at least 25 GB free disk space
 firstDiskLow=0
 if [ $(expr $freeDisk / 1024 / 1024 ) -ge 25 ]; then
 	newDisk=$(expr $freeDisk \* 90 / 100 / 1024)
 	if [ $(expr $newDisk / 1024 ) -lt 25 ] ; then newDisk=25600 ; fi
 else
 	firstDiskLow=1
 fi
 #
 # setting up default values
 custom_param_os="/mediabots/"$(ls /mediabots)
 custom_param_sw="/sw.iso"
 custom_param_virtio="/virtio/"$(ls /virtio)
 #
 custom_param_ram="-m "$(expr $availableRAM - 200 )"M"
 skipped=0
 partition=0
 other_drives=""
 format=",format=raw"
 if [ $dist	= "CentOS" ] ; then
 	qemupath=$(whereis qemu-kvm | sed "s/ /\n/g" | egrep "^/usr/libexec/")
 	#b=($(lsblk | egrep "part"  |  tr -s '[:space:]' | cut -f1 -d" " | tr -cd "[:print:]\n" | sed 's/^/\/dev\//'))
 else
 	qemupath=$(whereis qemu-system-x86_64 | cut -f2 -d" ")
 	#b=($(fdisk -l | grep "^/dev/" | tr -d "*" | tr -s '[:space:]' | cut -f1 -d" "))
 fi
 if [ $diskNumbers -eq 1 ] ; then # opened 1st if
 if [ $availableRAM -ge 3000 ] ; then # opened 2nd if
 	echo -e "${BLUE}For below option pass${NC} yes ${BLUE}iff, your VPS/Server came with${NC} boot system in ${NC}${RED}'RESCUE'${NC} mode ${BLUE}feature${NC}"
 	read -r -p "Do you want to completely delete your current Linux O.S.? (yes/no) : " deleteLinux
 	deleteLinux=$(echo "$deleteLinux" | head -c 1)
 	if [ ! -z $deleteLinux ] && [ $deleteLinux = 'Y' -o $deleteLinux = 'y' ] ; then
 		sudo wget -qO- /tmp https://archive.org/download/vkvm.tar_201903/vkvm.tar.gz | sudo tar xvz -C /tmp
 		qemupath=/tmp/qemu-system-x86_64
 		echo "erasing primary disk data"
 		sudo dd if=/dev/zero of=$firstDisk bs=1M count=1 # blank out the disk
 		echo "mounting devices"
 		mount -t tmpfs -o size=3920m tmpfs /mnt
 		mv /mediabots/* /mnt
 		mkdir /media/sw
 		mount -t tmpfs -o size=121m tmpfs /media/sw
 		mv /sw.iso /media/sw
 		custom_param_os="/mnt/"$(ls /mnt)
 		custom_param_sw="/media/sw/sw.iso"
 		availableRAM=$(echo $availableRAMcommand | bash)
 		custom_param_disk=$firstDisk
 		custom_param_ram="-m "$(expr $availableRAM - 500 )"M"
 		format=""
 		mounted=1
 	else
 		if [ $firstDiskLow = 0 ] ; then
 			if [ $partNumbers -gt 1 ] ; then 
 				idx=0;ix=0;
 				#for i in $(fdisk -l | grep "^/dev/" | tr -d "*" | tr -s '[:space:]' | cut -f5 -d" "); do
 				for i in $(lsblk | egrep "part"  |  tr -s '[:space:]' | cut -f4 -d" "); do
 				b=($(lsblk | egrep "part"  |  tr -s '[:space:]' | cut -f1 -d" " | tr -cd "[:alnum:]\n" | sed 's/^/\/dev\//'))
 				if [[ $i == *"G"  ]]; then a=$(echo $i | tr -d "G"); a=${a%.*} ; if [ $a -ge 25 -a $ix = 0 -a ${b[idx]} != $os ] ; then firstDisk=${b[idx]} ; custom_param_disk=$firstDisk ; partition=1 ; ix=$((ix+3)) ; elif [ $a -ge 25 -a $ix = 3 -a ${b[idx]} != $os ] ; then other_drives="-drive file=${b[idx]},index=$ix,media=disk,format=raw " ; fi ; fi ;
 				idx=$((idx+1));
 				done
 				if [ $partition = 0 ] ;then 
 					echo "creating disk image"
 					sudo dd if=/dev/zero of=/disk.img bs=1024k seek=$newDisk count=0
 					custom_param_disk="/disk.img"
 				fi
 			else
 				echo "creating disk image"
 				sudo dd if=/dev/zero of=/disk.img bs=1024k seek=$newDisk count=0
 				custom_param_disk="/disk.img"
 			fi
 		else
 			skipped=1
 		fi
 	fi
 else
 	if [ $firstDiskLow = 0 ] ; then
 		if [ $partNumbers -gt 1 ] ; then 
 			idx=0;ix=0;
 			for i in $(lsblk | egrep "part"  |  tr -s '[:space:]' | cut -f4 -d" "); do
 			b=($(lsblk | egrep "part"  |  tr -s '[:space:]' | cut -f1 -d" " | tr -cd "[:alnum:]\n" | sed 's/^/\/dev\//'))
 			if [[ $i == *"G"  ]]; then a=$(echo $i | tr -d "G"); a=${a%.*} ; if [ $a -ge 25 -a $ix = 0 -a ${b[idx]} != $os ] ; then firstDisk=${b[idx]} ; custom_param_disk=$firstDisk ; partition=1 ; ix=$((ix+3)) ; elif [ $a -ge 25 -a $ix = 3 -a ${b[idx]} != $os ] ; then other_drives="-drive file=${b[idx]},index=$ix,media=disk,format=raw " ; fi ; fi ;
 			idx=$((idx+1));
 			done
 			if [ $partition = 0 ] ;then 
 				echo "creating disk image"
 				sudo dd if=/dev/zero of=/disk.img bs=1024k seek=$newDisk count=0
 				custom_param_disk="/disk.img"
 			fi
 		else
 			echo "creating disk image"
 			sudo dd if=/dev/zero of=/disk.img bs=1024k seek=$newDisk count=0
 			custom_param_disk="/disk.img"
 		fi
 	else
 		skipped=1
 	fi
 fi # 2nd if closed
 else # 1st if else
 if [ $availableRAM -ge 3000 ] ; then
 	read -r -p "Do you want to completely delete your current Linux O.S.? (yes/no) : " deleteLinux
 	deleteLinux=$(echo "$deleteLinux" | head -c 1)
 	if [ ! -z $deleteLinux ] && [ $deleteLinux = 'Y' -o $deleteLinux = 'y' ] ; then
 		sudo wget -qO- /tmp https://archive.org/download/vkvm.tar_201903/vkvm.tar.gz | sudo tar xvz -C /tmp
 		qemupath=/tmp/qemu-system-x86_64
 		echo "erasing primary disk data"
 		sudo dd if=/dev/zero of=$firstDisk bs=1M count=1 # blank out the disk
 		echo "mounting devices"
 		mount -t tmpfs -o size=3460m tmpfs /mnt
 		mv /mediabots/* /mnt
 		mkdir /media/sw
 		mount -t tmpfs -o size=121m tmpfs /media/sw
 		mv /sw.iso /media/sw
 		custom_param_os="/mnt/"$(ls /mnt)
 		custom_param_sw="/media/sw/sw.iso"
 		availableRAM=$(echo $availableRAMcommand | bash)
 		custom_param_disk=$firstDisk
 		custom_param_ram="-m "$(expr $availableRAM - 500 )"M"
 		format=""
 		mounted=1
 	else
 		echo "using secondary disk for installation."
 		custom_param_disk=$(fdisk -l | grep "Disk /dev/" | awk 'NR==2' | cut -f2 -d" " | cut -f1 -d":") # 2nd disk chosen
 	fi
 else
 	echo "using secondary disk for installation.."
 	custom_param_disk=$(fdisk -l | grep "Disk /dev/" | awk 'NR==2' | cut -f2 -d" " | cut -f1 -d":")
 fi
 fi # closed 1st if
 # Adding other disks only if multi partitions are not exist
 if [ $partition = 0 ] ; then
 ix=2
 if [ $custom_param_disk != "/disk.img" ] ; then
 	for i in $(fdisk -l | grep "Disk /dev/" | cut -f2 -d" " | cut -f1 -d ":") ; do
 	if [ $i != $custom_param_disk ];then 
 	#echo $i;
 	ix=$((ix+1))
 	other_drives=$other_drives"-drive file=$i,index=$ix,media=disk,format=raw "
 	if [ $ix = 3 ]; then break; fi
 	fi
 	done
 fi
 fi
 #
 # Running the KVM
 echo "[ Running the KVM ]"
 if [ $skipped = 0 ] ; then
 echo "[.] running QEMU-KVM"
 sudo $qemupath -net nic -net user,hostfwd=tcp::3389-:3389 -show-cursor $custom_param_ram -rtc base=localtime -enable-kvm -cpu host,hv_relaxed,hv_spinlocks=0x1fff,hv_vapic,hv_time,+nx -M pc -smp cores=$cpus -vga std -machine type=pc,accel=kvm -usb -device usb-tablet -k en-us -drive file=$custom_param_disk,index=0,media=disk$format -drive file=$custom_param_os,index=1,media=cdrom -drive file=$custom_param_sw,index=2,media=cdrom $other_drives -boot once=d -vnc :9 &	
 # [note- no sudo should be used after that]
 #pidqemu=$(pgrep qemu) # does not work
 pid=$(echo $! | head -1)
 disown -h $pid
 echo "disowned PID : "$pid
 echo "[ For Debugging purpose ]"
 echo -e "$qemupath -net nic -net user,hostfwd=tcp::3389-:3389 -show-cursor $custom_param_ram -rtc base=localtime -enable-kvm -cpu host,hv_relaxed,hv_spinlocks=0x1fff,hv_vapic,hv_time,+nx -M pc -smp cores=$cpus -vga std -machine type=pc,accel=kvm -usb -device usb-tablet -k en-us -drive file=$custom_param_disk,index=0,media=disk$format -drive file=$custom_param_os,index=1,media=cdrom -drive file=$custom_param_sw,index=2,media=cdrom $other_drives -boot once=d -vnc :9 & disown %1"
 if [ $mounted = 1 ]; then
 echo -e "wget -P /tmp https://archive.org/download/vkvm.tar_201903/vkvm.tar.gz && tar -C /tmp -zxvf /tmp/vkvm.tar.gz && rm /tmp/vkvm.tar.gz && $qemupath -net nic -net user,hostfwd=tcp::3389-:3389 -show-cursor $custom_param_ram -rtc base=localtime -enable-kvm -cpu host,hv_relaxed,hv_spinlocks=0x1fff,hv_vapic,hv_time,+nx -M pc -smp cores=$cpus -vga std -machine type=pc,accel=kvm -usb -device usb-tablet -k en-us -drive file=$custom_param_disk,index=0,media=disk$format $other_drives -boot c -vnc :9 & disown %1" > /details.txt # -vnc :23456 incase you dont want to access it via VNC
 else
 echo -e "$qemupath -net nic -net user,hostfwd=tcp::3389-:3389 -show-cursor $custom_param_ram -rtc base=localtime -enable-kvm -cpu host,hv_relaxed,hv_spinlocks=0x1fff,hv_vapic,hv_time,+nx -M pc -smp cores=$cpus -vga std -machine type=pc,accel=kvm -usb -device usb-tablet -k en-us -drive file=$custom_param_disk,index=0,media=disk$format $other_drives -boot c -vnc :9 & disown %1" > /details.txt
 fi
 echo -e "${YELLOW} SAVE BELOW GREEN COLORED COMMAND IN A SAFE LOCATION FOR FUTURE USAGE${NC}"
 if [ $mounted = 1 ]; then
 echo -e "${GREEN_D}wget -P /tmp https://archive.org/download/vkvm.tar_201903/vkvm.tar.gz && tar -C /tmp -zxvf /tmp/vkvm.tar.gz && /tmp/rm vkvm.tar.gz && $qemupath -net nic -net user,hostfwd=tcp::3389-:3389 -show-cursor $custom_param_ram -localtime -enable-kvm -cpu host,hv_relaxed,hv_spinlocks=0x1fff,hv_vapic,hv_time,+nx -M pc -smp cores=$cpus -vga std -machine type=pc,accel=kvm -usb -device usb-tablet -k en-us -drive file=$custom_param_disk,index=0,media=disk$format $other_drives -boot c -vnc :9 & disown %1${NC}"
 else
 echo -e "${GREEN_D}$qemupath -net nic -net user,hostfwd=tcp::3389-:3389 -show-cursor $custom_param_ram -localtime -enable-kvm -cpu host,hv_relaxed,hv_spinlocks=0x1fff,hv_vapic,hv_time,+nx -M pc -smp cores=$cpus -vga std -machine type=pc,accel=kvm -usb -device usb-tablet -k en-us -drive file=$custom_param_disk,index=0,media=disk$format $other_drives -boot c -vnc :9 & disown %1${NC}"
 fi
 echo -e "${BLUE}command also saved in /details.txt file${NC}"
 echo -e "${YELLOW}Now download 'VNC Viewer' App from here :${NC} https://www.realvnc.com/en/connect/download/viewer/\n${YELLOW}Then install it on your computer${NC}"
 echo -e "Finally open ${GREEN_D}$ip:9${NC} on your VNC viewer."
 if [ $mounted = 1 ]; then
 read -r -p "Had your Windows Server setup completed successfully? (yes/no) : " setup_initial
 setup_initial=$(echo "$setup_initial" | head -c 1)
 sleep 10
 if [ ! -z $setup_initial ] && [ $setup_initial = 'Y' -o $setup_initial = 'y' ] ; then
 echo $pid $cpus $custom_param_disk $custom_param_sw $other_drives
 echo "helper called" 
 for i in $(ps aux | grep -i "qemu" | head -2 | tr -s '[:space:]' | cut -f2 -d" ") ; do echo "killing process id : "$i ; kill -9 $i ; done
 #sleep 30
 echo "un-mounting"
 umount -l /mnt
 sleep 10
 df
 sync; echo 3 > /proc/sys/vm/drop_caches
 free -m 
 availableRAM=$(echo $availableRAMcommand | bash)
 custom_param_ram="-m "$(expr $availableRAM - 200 )"M"
 custom_param_ram2="-m "$(expr $availableRAM - 500 )"M"
 echo $custom_param_ram
 echo "[..] running QEMU-KVM again"
 $qemupath -net nic -net user,hostfwd=tcp::3389-:3389 -show-cursor $custom_param_ram -localtime -enable-kvm -cpu host,hv_relaxed,hv_spinlocks=0x1fff,hv_vapic,hv_time,+nx -M pc -smp cores=$cpus -vga std -machine type=pc,accel=kvm -usb -device usb-tablet -k en-us -drive file=$custom_param_disk,index=0,media=disk -drive file=$custom_param_sw,index=1,media=cdrom $other_drives -boot c -vnc :9 &
 pid2=$(echo $! | head -1)
 disown -h $pid2
 echo "disowned PID : "$pid2
 echo "[ For Debugging purpose ]"
 echo -e "$qemupath -net nic -net user,hostfwd=tcp::3389-:3389 -show-cursor $custom_param_ram -localtime -enable-kvm -cpu host,hv_relaxed,hv_spinlocks=0x1fff,hv_vapic,hv_time,+nx -M pc -smp cores=$cpus -vga std -machine type=pc,accel=kvm -usb -device usb-tablet -k en-us -drive file=$custom_param_disk,index=0,media=disk -drive file=$custom_param_sw,index=1,media=cdrom $other_drives -boot c -vnc :9 & disown %1"
 # incase you get qemu-system-x86_64: -net user,hostfwd=tcp::3389-:3389: Could not set up host forwarding rule 'tcp::3389-:3389' ,use this instead -net user,hostfwd=tcp::30889-:3389
 echo -e "${YELLOW} SAVE BELOW GREEN COLORED COMMAND IN A SAFE LOCATION FOR FUTURE USAGE${NC}"
 echo -e "${GREEN}wget -P /tmp https://archive.org/download/vkvm.tar_201903/vkvm.tar.gz && tar -C /tmp -zxvf /tmp/vkvm.tar.gz && rm /tmp/vkvm.tar.gz && $qemupath -net nic -net user,hostfwd=tcp::3389-:3389 -show-cursor $custom_param_ram2 -localtime -enable-kvm -cpu host,hv_relaxed,hv_spinlocks=0x1fff,hv_vapic,hv_time,+nx -M pc -smp cores=$cpus -vga std -machine type=pc,accel=kvm -usb -device usb-tablet -k en-us -drive file=$custom_param_disk,index=0,media=disk $other_drives -boot c -vnc :9 & disown %1${NC}"
 echo -e "Now you can access your Windows server through \"VNC viewer\" or \"Remote Desktop Application\" (if your server 'Remote Desktop' is enabled)."
 echo "Job Done :)"
 fi
 else
 echo "Job Done :)"
 fi
 else
 echo "Windows OS required at least 25GB free desk space. Your Server/VPS does't have 25GB free space!"
 echo "Exiting....."
 fi
 fi
	#!/bin/bash
	#
	#Vars
	mounted=0
	GREEN='\033[1;32m';GREEN_D='\033[0;32m';RED='\033[0;31m';YELLOW='\033[0;33m';BLUE='\033[0;34m';NC='\033[0m'
	# Virtualization checking..
	virtu=$(egrep -i '^flags.*(vmx\|svm)' /proc/cpuinfo \| wc -l)
	if [ $virtu = 0 ] ; then echo -e "[Error] ${RED}Virtualization/KVM in your Server/VPS is OFF\nExiting...${NC}";
	else
	#
	# Deleting Previous Windows Installation by the Script
	#umount -l /mnt /media/script /media/sw
	#rm -rf /mediabots /floppy /virtio /media/* /tmp/*
	#rm -f /sw.iso /disk.img
	# installing required Ubuntu packages
	dist=$(hostnamectl \| egrep "Operating System" \| cut -f2 -d":" \| cut -f2 -d " ")
	if [ $dist = "CentOS" ] ; then
	printf "Y\n" \| yum install sudo -y
	sudo yum install wget vim curl genisoimage -y
	# Downloading Portable QEMU-KVM
	echo "Downloading QEMU"
	sudo yum update -y
	sudo yum install -y qemu-kvm
	elif [ $dist = "Ubuntu" -o $dist = "Debian" ] ; then
	printf "Y\n" \| apt-get install sudo -y
	sudo apt-get install vim curl genisoimage -y
	# Downloading Portable QEMU-KVM
	echo "Downloading QEMU"
	sudo apt-get update
	sudo apt-get install -y qemu-kvm
	fi
	sudo ln -s /usr/bin/genisoimage /usr/bin/mkisofs
	# Downloading resources
	sudo mkdir /mediabots /floppy /virtio
	link1_status=$(curl -Is http://download.microsoft.com/download/6/2/A/62A76ABB-9990-4EFC-A4FE-C7D698DAEB96/9600.17050.WINBLUE_REFRESH.140317-1640_X64FRE_SERVER_EVAL_EN-US-IR3_SSS_X64FREE_EN-US_DV9.ISO \| grep HTTP \| cut -f2 -d" " \| head -1)
	link2_status=$(curl -Is https://ia601506.us.archive.org/4/items/WS2012R2/WS2012R2.ISO \| grep HTTP \| cut -f2 -d" ")
	#sudo wget -P /mediabots https://archive.org/download/WS2012R2/WS2012R2.ISO # Windows Server 2012 R2
	if [ ! -f /mediabots/WS2012R2.ISO ]; then
	if [ $link1_status = "200" ] ; then
	sudo wget -O /mediabots/WS2012R2.ISO http://download.microsoft.com/download/6/2/A/62A76ABB-9990-4EFC-A4FE-C7D698DAEB96/9600.17050.WINBLUE_REFRESH.140317-1640_X64FRE_SERVER_EVAL_EN-US-IR3_SSS_X64FREE_EN-US_DV9.ISO
	elif [ $link2_status = "200" -o $link2_status = "301" -o $link2_status = "302" ] ; then
	sudo wget -P /mediabots https://ia601506.us.archive.org/4/items/WS2012R2/WS2012R2.ISO
	else
	echo -e "${RED}[Error]${NC} ${YELLOW}Sorry! None of Windows OS image urls are available , please report about this issue on Github page : ${NC}https://github.com/mediabots/Linux-to-Windows-with-QEMU"
	echo "Exiting.."
	sleep 30
	exit 1
	fi
	fi
	if [ ! -f /floppy/Firefox.exe ]; then
	sudo wget -P /floppy https://ftp.mozilla.org/pub/firefox/releases/64.0/win32/en-US/Firefox%20Setup%2064.0.exe
	sudo mv /floppy/'Firefox Setup 64.0.exe' /floppy/Firefox.exe
	fi
	if [ ! -f /floppy/PROWinx64.exe ]; then
	sudo wget -P /floppy https://downloadmirror.intel.com/23073/eng/PROWinx64.exe # Intel Network Adapter for Windows Server 2012 R2
	fi
	# Powershell script to auto enable remote desktop for administrator
	sudo touch /floppy/EnableRDP.ps1
	sudo echo -e "Set-ItemProperty 'HKLM:\SYSTEM\CurrentControlSet\Control\Terminal Server\' -Name \"fDenyTSConnections\" -Value 0" >> /floppy/EnableRDP.ps1
	sudo echo -e "Set-ItemProperty 'HKLM:\SYSTEM\CurrentControlSet\Control\Terminal Server\WinStations\RDP-Tcp\' -Name \"UserAuthentication\" -Value 1" >> /floppy/EnableRDP.ps1
	sudo echo -e "Enable-NetFirewallRule -DisplayGroup \"Remote Desktop\"" >> /floppy/EnableRDP.ps1
	# Downloading Virtio Drivers
	if [ ! -f /virtio/virtio-win.iso ]; then
	sudo wget -P /virtio https://fedorapeople.org/groups/virt/virtio-win/direct-downloads/stable-virtio/virtio-win.iso
	fi
	# creating .iso for Windows tools & drivers
	sudo mkisofs -o /sw.iso /floppy
	#
	#Enabling KSM
	sudo echo 1 > /sys/kernel/mm/ksm/run
	#Free memories
	sync; sudo echo 3 > /proc/sys/vm/drop_caches
	# Gathering System information
	idx=0
	fs=($(df \| awk '{print $1}'))
	for j in $(df \| awk '{print $6}');do if [ $j = "/" ] ; then os=${fs[$idx]};echo $os;fi;idx=$((idx+1));done
	#
	ip=$(curl ifconfig.me)
	echo "Linux Distro : "$dist
	virtualization=$(lscpu \| grep Virtualization: \| head -1 \| cut -f2 -d":" \| awk '{$1=$1;print}')
	echo "Virtualization : "$virtualization
	model=$(lscpu \| grep "Model name:" \| head -1 \| cut -f2 -d":" \| awk '{$1=$1;print}')
	echo "CPU Model : "$model
	cpus=$(lscpu \| grep CPU\(s\) \| head -1 \| cut -f2 -d":" \| awk '{$1=$1;print}')
	echo "No. of CPU cores : "$cpus
	if [ $dist = "Debian" ] ;then availableRAMcommand="free -m \| head -2 \| tail -1 \| awk '{print \$4}'" ; elif [ $dist = "Ubuntu" -o $dist = "CentOS" ] ;then availableRAMcommand="free -m \| tail -2 \| head -1 \| awk '{print \$7}'"; fi
	availableRAM=$(echo $availableRAMcommand \| bash)
	echo "Available RAM : "$availableRAM" MB"
	diskNumbers=$(fdisk -l \| grep "Disk /dev/" \| wc -l)
	partNumbers=$(lsblk \| egrep "part" \| wc -l) # $(fdisk -l \| grep "^/dev/" \| wc -l)
	firstDisk=$(fdisk -l \| grep "Disk /dev/" \| head -1 \| cut -f1 -d":" \| cut -f2 -d" ")
	freeDisk=$(df \| grep "^/dev/" \| awk '{print$1 " " $4}' \| sort -g -k 2 \| tail -1 \| cut -f2 -d" ")
	# Windows required at least 25 GB free disk space
	firstDiskLow=0
	if [ $(expr $freeDisk / 1024 / 1024 ) -ge 25 ]; then
	newDisk=$(expr $freeDisk \* 90 / 100 / 1024)
	if [ $(expr $newDisk / 1024 ) -lt 25 ] ; then newDisk=25600 ; fi
	else
	firstDiskLow=1
	fi
	#
	# setting up default values
	custom_param_os="/mediabots/"$(ls /mediabots)
	custom_param_sw="/sw.iso"
	custom_param_virtio="/virtio/"$(ls /virtio)
	#
	custom_param_ram="-m "$(expr $availableRAM - 200 )"M"
	skipped=0
	partition=0
	other_drives=""
	format=",format=raw"
	if [ $dist = "CentOS" ] ; then
	qemupath=$(whereis qemu-kvm \| sed "s/ /\n/g" \| egrep "^/usr/libexec/")
	#b=($(lsblk \| egrep "part" \| tr -s '[:space:]' \| cut -f1 -d" " \| tr -cd "[:print:]\n" \| sed 's/^/\/dev\//'))
	else
	qemupath=$(whereis qemu-system-x86_64 \| cut -f2 -d" ")
	#b=($(fdisk -l \| grep "^/dev/" \| tr -d "*" \| tr -s '[:space:]' \| cut -f1 -d" "))
	fi
	if [ $diskNumbers -eq 1 ] ; then # opened 1st if
	if [ $availableRAM -ge 3000 ] ; then # opened 2nd if
	echo -e "${BLUE}For below option pass${NC} yes ${BLUE}iff, your VPS/Server came with${NC} boot system in ${NC}${RED}'RESCUE'${NC} mode ${BLUE}feature${NC}"
	read -r -p "Do you want to completely delete your current Linux O.S.? (yes/no) : " deleteLinux
	deleteLinux=$(echo "$deleteLinux" \| head -c 1)
	if [ ! -z $deleteLinux ] && [ $deleteLinux = 'Y' -o $deleteLinux = 'y' ] ; then
	sudo wget -qO- /tmp https://archive.org/download/vkvm.tar_201903/vkvm.tar.gz \| sudo tar xvz -C /tmp
	qemupath=/tmp/qemu-system-x86_64
	echo "erasing primary disk data"
	sudo dd if=/dev/zero of=$firstDisk bs=1M count=1 # blank out the disk
	echo "mounting devices"
	mount -t tmpfs -o size=3920m tmpfs /mnt
	mv /mediabots/* /mnt
	mkdir /media/sw
	mount -t tmpfs -o size=121m tmpfs /media/sw
	mv /sw.iso /media/sw
	custom_param_os="/mnt/"$(ls /mnt)
	custom_param_sw="/media/sw/sw.iso"
	availableRAM=$(echo $availableRAMcommand \| bash)
	custom_param_disk=$firstDisk
	custom_param_ram="-m "$(expr $availableRAM - 500 )"M"
	format=""
	mounted=1
	else
	if [ $firstDiskLow = 0 ] ; then
	if [ $partNumbers -gt 1 ] ; then
	idx=0;ix=0;
	#for i in $(fdisk -l \| grep "^/dev/" \| tr -d "*" \| tr -s '[:space:]' \| cut -f5 -d" "); do
	for i in $(lsblk \| egrep "part" \| tr -s '[:space:]' \| cut -f4 -d" "); do
	b=($(lsblk \| egrep "part" \| tr -s '[:space:]' \| cut -f1 -d" " \| tr -cd "[:alnum:]\n" \| sed 's/^/\/dev\//'))
	if [[ $i == "G" ]]; then a=$(echo $i \| tr -d "G"); a=${a%.} ; if [ $a -ge 25 -a $ix = 0 -a ${b[idx]} != $os ] ; then firstDisk=${b[idx]} ; custom_param_disk=$firstDisk ; partition=1 ; ix=$((ix+3)) ; elif [ $a -ge 25 -a $ix = 3 -a ${b[idx]} != $os ] ; then other_drives="-drive file=${b[idx]},index=$ix,media=disk,format=raw " ; fi ; fi ;
	idx=$((idx+1));
	done
	if [ $partition = 0 ] ;then
	echo "creating disk image"
	sudo dd if=/dev/zero of=/disk.img bs=1024k seek=$newDisk count=0
	custom_param_disk="/disk.img"
	fi
	else
	echo "creating disk image"
	sudo dd if=/dev/zero of=/disk.img bs=1024k seek=$newDisk count=0
	custom_param_disk="/disk.img"
	fi
	else
	skipped=1
	fi
	fi
	else
	if [ $firstDiskLow = 0 ] ; then
	if [ $partNumbers -gt 1 ] ; then
	idx=0;ix=0;
	for i in $(lsblk \| egrep "part" \| tr -s '[:space:]' \| cut -f4 -d" "); do
	b=($(lsblk \| egrep "part" \| tr -s '[:space:]' \| cut -f1 -d" " \| tr -cd "[:alnum:]\n" \| sed 's/^/\/dev\//'))
	if [[ $i == "G" ]]; then a=$(echo $i \| tr -d "G"); a=${a%.} ; if [ $a -ge 25 -a $ix = 0 -a ${b[idx]} != $os ] ; then firstDisk=${b[idx]} ; custom_param_disk=$firstDisk ; partition=1 ; ix=$((ix+3)) ; elif [ $a -ge 25 -a $ix = 3 -a ${b[idx]} != $os ] ; then other_drives="-drive file=${b[idx]},index=$ix,media=disk,format=raw " ; fi ; fi ;
	idx=$((idx+1));
	done
	if [ $partition = 0 ] ;then
	echo "creating disk image"
	sudo dd if=/dev/zero of=/disk.img bs=1024k seek=$newDisk count=0
	custom_param_disk="/disk.img"
	fi
	else
	echo "creating disk image"
	sudo dd if=/dev/zero of=/disk.img bs=1024k seek=$newDisk count=0
	custom_param_disk="/disk.img"
	fi
	else
	skipped=1
	fi
	fi # 2nd if closed
	else # 1st if else
	if [ $availableRAM -ge 3000 ] ; then
	read -r -p "Do you want to completely delete your current Linux O.S.? (yes/no) : " deleteLinux
	deleteLinux=$(echo "$deleteLinux" \| head -c 1)
	if [ ! -z $deleteLinux ] && [ $deleteLinux = 'Y' -o $deleteLinux = 'y' ] ; then
	sudo wget -qO- /tmp https://archive.org/download/vkvm.tar_201903/vkvm.tar.gz \| sudo tar xvz -C /tmp
	qemupath=/tmp/qemu-system-x86_64
	echo "erasing primary disk data"
	sudo dd if=/dev/zero of=$firstDisk bs=1M count=1 # blank out the disk
	echo "mounting devices"
	mount -t tmpfs -o size=3460m tmpfs /mnt
	mv /mediabots/* /mnt
	mkdir /media/sw
	mount -t tmpfs -o size=121m tmpfs /media/sw
	mv /sw.iso /media/sw
	custom_param_os="/mnt/"$(ls /mnt)
	custom_param_sw="/media/sw/sw.iso"
	availableRAM=$(echo $availableRAMcommand \| bash)
	custom_param_disk=$firstDisk
	custom_param_ram="-m "$(expr $availableRAM - 500 )"M"
	format=""
	mounted=1
	else
	echo "using secondary disk for installation."
	custom_param_disk=$(fdisk -l \| grep "Disk /dev/" \| awk 'NR==2' \| cut -f2 -d" " \| cut -f1 -d":") # 2nd disk chosen
	fi
	else
	echo "using secondary disk for installation.."
	custom_param_disk=$(fdisk -l \| grep "Disk /dev/" \| awk 'NR==2' \| cut -f2 -d" " \| cut -f1 -d":")
	fi
	fi # closed 1st if
	# Adding other disks only if multi partitions are not exist
	if [ $partition = 0 ] ; then
	ix=2
	if [ $custom_param_disk != "/disk.img" ] ; then
	for i in $(fdisk -l \| grep "Disk /dev/" \| cut -f2 -d" " \| cut -f1 -d ":") ; do
	if [ $i != $custom_param_disk ];then
	#echo $i;
	ix=$((ix+1))
	other_drives=$other_drives"-drive file=$i,index=$ix,media=disk,format=raw "
	if [ $ix = 3 ]; then break; fi
	fi
	done
	fi
	fi
	#
	# Running the KVM
	echo "[ Running the KVM ]"
	if [ $skipped = 0 ] ; then
	echo "[.] running QEMU-KVM"
	sudo $qemupath -net nic -net user,hostfwd=tcp::3389-:3389 -show-cursor $custom_param_ram -rtc base=localtime -enable-kvm -cpu host,hv_relaxed,hv_spinlocks=0x1fff,hv_vapic,hv_time,+nx -M pc -smp cores=$cpus -vga std -machine type=pc,accel=kvm -usb -device usb-tablet -k en-us -drive file=$custom_param_disk,index=0,media=disk$format -drive file=$custom_param_os,index=1,media=cdrom -drive file=$custom_param_sw,index=2,media=cdrom $other_drives -boot once=d -vnc :9 &
	# [note- no sudo should be used after that]
	#pidqemu=$(pgrep qemu) # does not work
	pid=$(echo $! \| head -1)
	disown -h $pid
	echo "disowned PID : "$pid
	echo "[ For Debugging purpose ]"
	echo -e "$qemupath -net nic -net user,hostfwd=tcp::3389-:3389 -show-cursor $custom_param_ram -rtc base=localtime -enable-kvm -cpu host,hv_relaxed,hv_spinlocks=0x1fff,hv_vapic,hv_time,+nx -M pc -smp cores=$cpus -vga std -machine type=pc,accel=kvm -usb -device usb-tablet -k en-us -drive file=$custom_param_disk,index=0,media=disk$format -drive file=$custom_param_os,index=1,media=cdrom -drive file=$custom_param_sw,index=2,media=cdrom $other_drives -boot once=d -vnc :9 & disown %1"
	if [ $mounted = 1 ]; then
	echo -e "wget -P /tmp https://archive.org/download/vkvm.tar_201903/vkvm.tar.gz && tar -C /tmp -zxvf /tmp/vkvm.tar.gz && rm /tmp/vkvm.tar.gz && $qemupath -net nic -net user,hostfwd=tcp::3389-:3389 -show-cursor $custom_param_ram -rtc base=localtime -enable-kvm -cpu host,hv_relaxed,hv_spinlocks=0x1fff,hv_vapic,hv_time,+nx -M pc -smp cores=$cpus -vga std -machine type=pc,accel=kvm -usb -device usb-tablet -k en-us -drive file=$custom_param_disk,index=0,media=disk$format $other_drives -boot c -vnc :9 & disown %1" > /details.txt # -vnc :23456 incase you dont want to access it via VNC
	else
	echo -e "$qemupath -net nic -net user,hostfwd=tcp::3389-:3389 -show-cursor $custom_param_ram -rtc base=localtime -enable-kvm -cpu host,hv_relaxed,hv_spinlocks=0x1fff,hv_vapic,hv_time,+nx -M pc -smp cores=$cpus -vga std -machine type=pc,accel=kvm -usb -device usb-tablet -k en-us -drive file=$custom_param_disk,index=0,media=disk$format $other_drives -boot c -vnc :9 & disown %1" > /details.txt
	fi
	echo -e "${YELLOW} SAVE BELOW GREEN COLORED COMMAND IN A SAFE LOCATION FOR FUTURE USAGE${NC}"
	if [ $mounted = 1 ]; then
	echo -e "${GREEN_D}wget -P /tmp https://archive.org/download/vkvm.tar_201903/vkvm.tar.gz && tar -C /tmp -zxvf /tmp/vkvm.tar.gz && /tmp/rm vkvm.tar.gz && $qemupath -net nic -net user,hostfwd=tcp::3389-:3389 -show-cursor $custom_param_ram -localtime -enable-kvm -cpu host,hv_relaxed,hv_spinlocks=0x1fff,hv_vapic,hv_time,+nx -M pc -smp cores=$cpus -vga std -machine type=pc,accel=kvm -usb -device usb-tablet -k en-us -drive file=$custom_param_disk,index=0,media=disk$format $other_drives -boot c -vnc :9 & disown %1${NC}"
	else
	echo -e "${GREEN_D}$qemupath -net nic -net user,hostfwd=tcp::3389-:3389 -show-cursor $custom_param_ram -localtime -enable-kvm -cpu host,hv_relaxed,hv_spinlocks=0x1fff,hv_vapic,hv_time,+nx -M pc -smp cores=$cpus -vga std -machine type=pc,accel=kvm -usb -device usb-tablet -k en-us -drive file=$custom_param_disk,index=0,media=disk$format $other_drives -boot c -vnc :9 & disown %1${NC}"
	fi
	echo -e "${BLUE}command also saved in /details.txt file${NC}"
	echo -e "${YELLOW}Now download 'VNC Viewer' App from here :${NC} https://www.realvnc.com/en/connect/download/viewer/\n${YELLOW}Then install it on your computer${NC}"
	echo -e "Finally open ${GREEN_D}$ip:9${NC} on your VNC viewer."
	if [ $mounted = 1 ]; then
	read -r -p "Had your Windows Server setup completed successfully? (yes/no) : " setup_initial
	setup_initial=$(echo "$setup_initial" \| head -c 1)
	sleep 10
	if [ ! -z $setup_initial ] && [ $setup_initial = 'Y' -o $setup_initial = 'y' ] ; then
	echo $pid $cpus $custom_param_disk $custom_param_sw $other_drives
	echo "helper called"
	for i in $(ps aux \| grep -i "qemu" \| head -2 \| tr -s '[:space:]' \| cut -f2 -d" ") ; do echo "killing process id : "$i ; kill -9 $i ; done
	#sleep 30
	echo "un-mounting"
	umount -l /mnt
	sleep 10
	df
	sync; echo 3 > /proc/sys/vm/drop_caches
	free -m
	availableRAM=$(echo $availableRAMcommand \| bash)
	custom_param_ram="-m "$(expr $availableRAM - 200 )"M"
	custom_param_ram2="-m "$(expr $availableRAM - 500 )"M"
	echo $custom_param_ram
	echo "[..] running QEMU-KVM again"
	$qemupath -net nic -net user,hostfwd=tcp::3389-:3389 -show-cursor $custom_param_ram -localtime -enable-kvm -cpu host,hv_relaxed,hv_spinlocks=0x1fff,hv_vapic,hv_time,+nx -M pc -smp cores=$cpus -vga std -machine type=pc,accel=kvm -usb -device usb-tablet -k en-us -drive file=$custom_param_disk,index=0,media=disk -drive file=$custom_param_sw,index=1,media=cdrom $other_drives -boot c -vnc :9 &
	pid2=$(echo $! \| head -1)
	disown -h $pid2
	echo "disowned PID : "$pid2
	echo "[ For Debugging purpose ]"
	echo -e "$qemupath -net nic -net user,hostfwd=tcp::3389-:3389 -show-cursor $custom_param_ram -localtime -enable-kvm -cpu host,hv_relaxed,hv_spinlocks=0x1fff,hv_vapic,hv_time,+nx -M pc -smp cores=$cpus -vga std -machine type=pc,accel=kvm -usb -device usb-tablet -k en-us -drive file=$custom_param_disk,index=0,media=disk -drive file=$custom_param_sw,index=1,media=cdrom $other_drives -boot c -vnc :9 & disown %1"
	# incase you get qemu-system-x86_64: -net user,hostfwd=tcp::3389-:3389: Could not set up host forwarding rule 'tcp::3389-:3389' ,use this instead -net user,hostfwd=tcp::30889-:3389
	echo -e "${YELLOW} SAVE BELOW GREEN COLORED COMMAND IN A SAFE LOCATION FOR FUTURE USAGE${NC}"
	echo -e "${GREEN}wget -P /tmp https://archive.org/download/vkvm.tar_201903/vkvm.tar.gz && tar -C /tmp -zxvf /tmp/vkvm.tar.gz && rm /tmp/vkvm.tar.gz && $qemupath -net nic -net user,hostfwd=tcp::3389-:3389 -show-cursor $custom_param_ram2 -localtime -enable-kvm -cpu host,hv_relaxed,hv_spinlocks=0x1fff,hv_vapic,hv_time,+nx -M pc -smp cores=$cpus -vga std -machine type=pc,accel=kvm -usb -device usb-tablet -k en-us -drive file=$custom_param_disk,index=0,media=disk $other_drives -boot c -vnc :9 & disown %1${NC}"
	echo -e "Now you can access your Windows server through \"VNC viewer\" or \"Remote Desktop Application\" (if your server 'Remote Desktop' is enabled)."
	echo "Job Done :)"
	fi
	else
	echo "Job Done :)"
	fi
	else
	echo "Windows OS required at least 25GB free desk space. Your Server/VPS does't have 25GB free space!"
	echo "Exiting....."
	fi
	fi