hello Piero, sorry for taking so long to answer. We have installed the guest additions when doing an apt upgrade in linux mint and also updated the kernel, now I have many errors in the boot and I have to start from 0:
sys subsy devices multi user device
deb getty .device
Update manager error...
I've tried to look for a lot of information on the internet but I don't think I can solve it and I'll finish sooner if I start again.
I didn't understand your message correctly. There is no way to customize the grub in live and for when the system is installed?
I understood that not with eggs. I have customized the grub in the installed system and when eggs creates the iso it changes.