Out of curiosity: Does this squashfs feature will work somehow like a switch firmware in the future, having 2 "base images" and booting the newest one or the backup if the user wants to change it? Example:

SWDEP_02# show bootvar Image Filename Version Date Status ----- --------- --------- --------------------- ----------- 1 image-1 2.0.0.66 09-Mar-2017 13:23:09 Active* 2 image-2 2.0.0.42 01-Sep-2010 15:26:19 Not active "*" designates that the image was selected for the next boot