macOS Catalina Virtual Machine Construction and Destruction Script

TOC

At first
/host-osx/macOS-Catalena/vm-create.command
/host-osx/macOS-Catalena/vm-destroy.command

At first

Describes a script for building and destroying macOS Catalina virtual machines built using scripts.

The script you are using is published as vm-configure on github, so please download it from github or download it from here.

See the link below for the vm-configure folder configuration.

/host-osx/macOS-Catalena/vm-create.command

This is a script for building macOS Catalina virtual machines.

The location of the script file is in the current directory.

SCRIPT_DIR=$(dirname "$0")
cd "$SCRIPT_DIR"

We determine if there is an iso file in the script execution directory that will be the installation media for macOS Catalena, and if it does not exist, we are creating the iso file.

if [ ! -e "${SCRIPT_DIR}/Catalina.iso" ]; then
  ...
fi

If there is no macOS Catalena installer from which to create the iso file that will be the installer for macOS Catalena, download it from Apple with the softwareupdate command.

    if [ ! -e "/Applications/Install macOS Catalina.app" ]; then
        softwareupdate --fetch-full-installer --full-installer-version 10.15.6
    fi

Creating 8G disk image for writing installer.

    hdiutil create -o "${SCRIPT_DIR}/Catalina" -size 8G -layout SPUD -fs HFS+J -type SPARSE -volname Catalina

Mounting the disk image you created.

    hdiutil attach "${SCRIPT_DIR}/Catalina.sparseimage" -noverify -mountpoint "/Volumes/Catalina"

Writing the installer to a disk image mounted using the createinstallmedia command included with the macOS Catalina installer.

    sudo "/Applications/Install macOS Catalina.app/Contents/Resources/createinstallmedia" --volume "/Volumes/Catalina" --nointeraction

Detaching disk image.

    hdiutil detach "/volumes/Install macOS Catalina"

Converting the disk image to an iso file that can be used by the virtual machine.

    hdiutil convert "${SCRIPT_DIR}/Catalina.sparseimage" -format UDTO -o "${SCRIPT_DIR}/Catalina.cdr"

I’m changing the file extension and cdr to iso.

    mv "${SCRIPT_DIR}/Catalina.cdr" "${SCRIPT_DIR}/Catalina.iso"

Deleting disk images that are no longer needed.

    rm "${SCRIPT_DIR}/Catalina.sparseimage"

Defines the name of the macOS Catalina virtual machine on VirtualBox.

VM_NAME="macOS-Catalina"

The virtual VM_NAME virtual machine is defined on VirtualBox to determine if it does not exist, and if it does not exist, it is in the process of building the virtual machine.

if [ ! "`vboxmanage list vms | grep '"'"${VM_NAME}"'"'`" ]; then
  ...
fi

The virtual machine to be created in VirtualBox is set with the vboxmanage command.

See herefor the parameters that can be set.

    vboxmanage createvm -name "${VM_NAME}" -register

    VM_DIR=$(dirname "`vboxmanage showvminfo "${VM_NAME}" --machinereadable | grep -e "^CfgFile=" | sed -e 's/^CfgFile="//' -e 's/"$//'`")    
    vboxmanage createmedium disk -filename "${VM_DIR}/${VM_NAME}.vdi" -size 100000 --format vdi
    vboxmanage storagectl "${VM_NAME}" --name "SATA" --add sata --controller IntelAhci
    vboxmanage storageattach "${VM_NAME}" --storagectl "SATA" --port 0 --device 0 --type hdd --medium "${VM_DIR}/${VM_NAME}.vdi"
    vboxmanage storageattach "${VM_NAME}" --storagectl "SATA" --port 1 --device 0 --type dvddrive --medium "${SCRIPT_DIR}/Catalina.iso"

    vboxmanage modifyvm "${VM_NAME}" --ostype MacOS_64
    vboxmanage modifyvm "${VM_NAME}" --acpi on
    vboxmanage modifyvm "${VM_NAME}" --chipset piix3
    vboxmanage modifyvm "${VM_NAME}" --mouse usbtablet
    vboxmanage modifyvm "${VM_NAME}" --keyboard usb
    vboxmanage modifyvm "${VM_NAME}" --firmware efi
    vboxmanage modifyvm "${VM_NAME}" --rtcuseutc on
    vboxmanage modifyvm "${VM_NAME}" --cpus 2
    vboxmanage modifyvm "${VM_NAME}" --memory 4096
    vboxmanage modifyvm "${VM_NAME}" --vram 128
    vboxmanage modifyvm "${VM_NAME}" --audiocontroller hda
    vboxmanage modifyvm "${VM_NAME}" --audioin on
    vboxmanage modifyvm "${VM_NAME}" --audioout on
    vboxmanage modifyvm "${VM_NAME}" --usbxhci on
    vboxmanage modifyvm "${VM_NAME}" --nic1 nat
    vboxmanage modifyvm "${VM_NAME}" --nictype1 virtio
    vboxmanage modifyvm "${VM_NAME}" --clipboard bidirectional
    vboxmanage modifyvm "${VM_NAME}" --draganddrop bidirectional
    vboxmanage setextradata "${VM_NAME}" GUI/ScaleFactor 2.00

    VBoxManage startvm "${VM_NAME}"

/host-osx/macOS-Catalena/vm-destroy.command

This is a script to destroy the macOS Catalina virtual machine.

The location of the script file is in the current directory.

SCRIPT_DIR=$(dirname "$0")
cd "$SCRIPT_DIR"

Defines the name of the macOS Catalina virtual machine on VirtualBox.

VM_NAME="macOS-Catalina"

If it is VM_NAME virtual machine is defined on the virtualBox to determine if it exists, and if so, it is performing a delete operation.

if [ "`vboxmanage list vms | grep '"'"${VM_NAME}"'"'`" ]; then
  ...
fi

VM_NAME is stopping the virtual machine defined in the list.

    vboxmanage controlvm "${VM_NAME}" poweroff

VM_NAME destroying the virtual machine defined in the list.

     vboxmanage unregistervm "${VM_NAME}" --delete