In the case of the jetson emmc module, the storage is fixed at 16 GB and it is difficult to expand, so if the 16 GB capacity is full, there is a problem that it cannot boot.
Although a warning message appears when the usable storage capacity decreases below a certain level,
Downloading this and that can be full.
In this case, you cannot boot.
Is there any way to force a capacity limit using a tool like quota?
Quota is set through the “/etc/security/limits.conf” file. If you have man pages installed (probably not on the Jetson, but probably so on the PC), then check “man limits.conf”. The kinds of resources which can be limited is a large topic, but you can find some description from many Linux URLs about resource limits. Example: https://www.tecmint.com/set-limits-on-user-processes-using-ulimit-in-linux/