When attempting to install software to a ThawSpace on OSX you may see an error that the installer cannot install to the ThawSpace because the volume does not have macOS installed. This is due to a restriction in the installer application that prevents it from installing software to destinations other than your boot volume.
To work around this you can run the following commands in the terminal to install your software, replacing the name of the package file with the one that you are installing:
#!/bin/bash
export CM_BUILD=CM_BUILD
/usr/sbin/installer -pkg "softwaretoinstall.pkg" -target "/Volumes/THAWSPACE/"
done
This will override the restriction that prevents you from installing to a partition other than the one that you have booted from.