Please read option mentioned at 3rd line of my previous post and also go through the link given in previous post . I have plenty of experience of Junos Installation on devices ranging from EX 3200 to SRX 3600 (but not ISSU), Junos installation process output is always available on console port, just try to have connection to device through console. It will work...
Please mark as accepted solution if it works for you
A Kudos is a good way of appreciation
Kashif Nawaz
JNCIP-Sec JNCIS-Sec JNCIS-Ent JNCIA-Junos
Kashif Nawaz
JNCIP-Sec JNCIS-Sec JNCIS-Ent JNCIA-Junos