initramfs-tools error (sudo apt upgrade)

I installed from Official LCNC ISO to N150 PC , and right after did this,

sudo apt update sudo apt upgrade　

I got error ,
dpkg  initramfs-tools error (--configure):
error exit status 1

My questions are
1) Is it OK to use LCNC in this situation ?
2) Are there any ways to solve this error ?


 

Yes, I'm using 2.9.8 from 2.9.4 iso image,

there is a line.

raspi-firmware: missing /boot/firmware, did you forget to mout it ?
...　z50-raspi-firmware exited with return code 1



I'm not using raspberry pi, but N150 PC

What should I do ?

Thank you so much !!!

That works.