View source for Zero-Touch Provisioning (ZTP) Not Working

If you get a message like this:

<PRE style="color:white;background-color:black;font-weight:bold;font-size:1.2em;">
Auto Image Upgrade: Installation of /var/tmp/junos-arm-32-22.3R1-S2.1.tgz image fetched from server 192.168.1.1 through vme failed:[ERROR: Failed to add junos-arm-32-22.3R1-S2.1.tgz]
</PRE>

You need to set an NTP server in your DHCP scope.  A Juniper box checks the signatures of the packages it is installing, and if the system clock is too far off, the certificates will not be valid.