[j-nsp] MX204 FPC won't start after upgrade.

[Matthew Crocker]

I have an MX204 running 20.2R3-S5.6 current and I want to upgrade to something newer.    When I do upgrade it goes through smoothly but the FPC will not come online.   It looks like an I2C error, may need a firmware update.

So far I’ve tried to upgrade to:

junos-vmhost-install-mx-x86-64-21.4R2-S2.6.tgz
junos-vmhost-install-mx-x86-64-22.2R1-S2.4.tgz

I’m pretty sure there is a new BSD version starting at 21 as well

I can downgrade back to 20.2.R3 and everything boots and works fine.

Has anyone had a similar issue?  Is there a firmware update I need to try to find?

Thanks

-Matt