Hello,

I have a question about grub2. My intention is to install one after another some Linux and other distros on an usb stick. I need an introduction how to do that. For example, after the installation of one distro, I want to install the grub2 and then install one after another and update the grub2-loader after every distro. Is this possible and can anyone help me?

Regards

if you search the web you'll find someone has already beat you to the punch and there are programs out there that allow this to take place.

https://itsfoss.com/multiple-linux-one-usb/

Just search for 'installing multiple distros'.

thank you

For many modern distro's a usb is exactly the same as a real hard drive. Since you have grub on it already that is a good start over syslinux or such.

If you remove your internal hard drive and boot to some installer media that you wish to have on this usb you will find it to be almost exactly as in a hard drive.

You won't have a lot of room on a usb so you are limited to number of distro's.

You need to consider uefi or legacy if that matters.

Not all distro's would use grub but the ones that do should update it correctly or you'll have to fix it later.