Multifunction USB SSD (USB Swiss Army Knife)

[CsIxy]

Thanks for the Ventoy Menu Extension Plugin! If I paste this into the ventoy_grub.cfg file:

menuentry “MyLinux Frugal Install” {
search --no-floppy --fs-uuid --set c03blablabla7-acc1712757cc
linux /boot/vmlinuz-5.4.0-42-generic root = UUID = c03blablablablabla712757cc ro quiet splash
initrd /boot/initrd.img-5.4.0-42-generic
}

Then my installed linux system will boot!
Great happiness !!!! With Legacy, me no longer need an auxiliary flash drive to boot the installed system.

But conversely, I don't know how ... Can you help me? If I can start Grub on my installed linux, what do I need to enter in the linux and initrd line to install Ventoy Frugal?

Because there are so many kinds of BIOS. In the case of UEFI there is when this is successfully booted there is when the other.