ISR4431 wont take new boot variable after ios update

[jmcgrady1]

This ISR 4431 is running 16.9.3.  When i use the following to install 16.12.4 it appears to install correctly:

install add file ftp://username:password@10.10.5.13/isr4400-universalk9.16.12.04.SPA.bin activate commit

It prompts me to set the boot variable to packages.conf and set config-reg 0x2102

When i do this via "boot system flash bootflash:packages.conf" and then "show boot" it says:

BOOT variable = bootflash:isr4400-universalk9.16.09.03.SPA.bin,1;bootflash:packages.conf,1;

Why would it not be taking the boot variable i set?  When i reboot it loads the old image.

[marce1000]

 - Try to clear any setting of the (previous) boot variable first with no boot... , then set your intended boot variable.

 M.

[jmcgrady1]

unfortunately the system accepts "no boot system" but it makes no difference to the boot variable.

[Leo Laohoo]

Post the complete output to the command "sh run | include boot". 

I want to make sure you avoid CSCvg37458.

[johnlloyd_13]

hi,

did you upgrade the ROMMON first?

the 4431 would need a minimum ROMMON version 16.7(4r) for IOS-XE 16.12.x upgrade.

see table 2 from this link:

https://www.cisco.com/c/en/us/td/docs/routers/access/4400/software/configuration/xe-16-12/isr4400swcfg-xe-16-12-book/installing_the_software.html#Cisco_Concept.dita_8829af23-df9e-4314-89d3-ab7e5a4e243a