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Loading custom OS image on Mesa 2

19 Jul 2017

Note: This information is provided as a reference and does not imply that Juniper Systems will provide full support for any custom or alternative operating system edition being used on the Mesa 2.

If you are using Microsoft System Center Configuration Manager (SCCM) to create an operating system image that you would like to load on the Mesa 2, you will need to include our latest drivers package as linked near the bottom of this article.

It is technically possible to switch the edition of the Microsoft Windows 10 operating system on the Mesa 2 from the default Windows 10 Pro edition, such as to an Enterprise edition. Some possible methods to do so are as follows, even just for test as described at this web page.

Similar to as mentioned at the bottom of that web page, the simplest method would be to just overwrite the pre-installed Windows 10 Pro license with a license for the edition that you want installed. Once a license for another edition has been entered, such as for Enterprise, the Windows 10 operating system will automatically switch to that edition (some automatic downloads may occur). This will save a lot of effort such as from having to try to install and enable custom drivers which are required for hardware in the Mesa 2, since these will remain installed from previously. The Windows license key can be viewed and changed by tapping and holding on the bottom-left Windows logo (Start) button, selecting System, and scrolling down to Windows activation then tapping on "Change product key". Or this can be done using a utility as briefly described at the top of the web link below.


Another method is to create a provisioning package as described at the following web page.


Other methods are listed at this web page.


One of the most technical methods is to load a full custom ISO image. This can be extremely difficult due to needing to apply all custom drivers, utilities, and registry keys needed on the Mesa 2. We offer a drivers package installer which may simplify the process, but this installer is not guaranteed to be compatible with your custom OS image and/or be allowed with your system security privileges in the custom operating system. This drivers package is described at this web page.


Drivers package for Mesa 2

A USB flash drive being used to load a custom OS image must be FAT32 format or else the UEFI BIOS will not recognize it. To boot from USB, plug in a USB hub, with a keyboard and the FAT32 USB device with boot files on it. Hold the ESC key on the keyboard and then press the power button on the device to turn it on. Keep holding the ESC key. You should get to a menu with 6 icons. The top/middle icon says “Boot Manager”. Let go of the ESC key and arrow over to Boot Manager and hit enter. The USB drive should be listed (if the custom OS image is recognized), and you can arrow down to it and hit Enter. For additional details, see the following web page.


WinPE: Store or split images to deploy Windows using a single USB drive