Juniper Technical Assistance Center (JTAC) no longer supports version 14.1. If you open a support case, you will be asked to upgrade to 21.x or later. This makes the domestic.img unsuitable for any business-critical routing.
If you attempt to install an "export" version of JunOS (which you might find labeled international or lacking the domestic tag), you will receive error messages like: Jinstall-vmx-14.1r4.8-domestic.img
Before executing any installation, a network architect must decode the file name. Here is the syntactic breakdown of Jinstall-vmx-14.1r4.8-domestic.img : Jinstall-vmx-14.1r4.8-domestic.img