[c-nsp] ASR9K Upgrade

[Mohammad Khalil]

Dears
I am trying to upgrade my ASR9K router from 4.3.2 to 5.3.2
The issue am facing is the space , am running out of space
My questions are:
Like IOS , if I deleted the existing OS while the system is running , well the system keeps functioning?
What the packages do I need to install (minimum) for the system to boot up successfully with no problems and then I can remove the old OS packages?

Thanks

BR,
Mohammad