Upgraded to 11.2 - boot image now using 90% of boot volume

[Jehu]

I am new to FreeNAS, and am taking of this project from a previous IT group.
I could not find mention of this issue in the forums
I upgraded to 11.2 from 11.1 and I receives a report that 90% of the boot volume was used.

Previous Boot Environment was only 1G and the new one is 13.4G. I tried rebooting the device and now the 11.1 boot environment is gone so i cannot even revert.
Is there something that i can do to shrink the boot image? Do i need to get a larger flash drive and reinstall?

This is on a FreeNAS Mini.

Thanks

 

[SweetAndLow]

Clean up old snapshots. Other than that the size is the size. You should also make sure your system dataset is not on your boot device taking up space.

 

[Jehu]

Thank you for your response.

I have deleted old snapshots and verified that the user data is not on the boot partition, but my boot image has grown overnight.
this is preventing me from upgrading further.

Are there any other suggestions as this unit only has a 16G boot partition.

 

[SweetAndLow]

Are you storing anything in /root? You have put something on your boot device.