【Solved】persistence no prompt

[bertus65]

Maybe case-sensitive problem.
Try change "image": "/ISO/ubuntu-21.04-desktop-amd64.iso"  to  "image": "/iso/ubuntu-21.04-desktop-amd64.iso",

Recommend to use VentoyPlugson to automatically generate ventoy.json to avoid problem.
https://www.ventoy.net/en/plugin_plugson.html

I copied the example on https://www.ventoy.net/en/plugin_persistence.html where iso is in capitals.
To prevent users going wrong it is better to change the example all lowercase.