-t don't work

[marcosdly]

Just installed everything necessary to emulate the grub menu with -t but got this error.

https://imgur.com/eGAdY20

[mateosss]

That is a bit weird. Matter is complaining about not finding the command grub2-theme-preview which is installed when you install the python package with the same name.

In my system, doing a pip3 install --user grub2-theme-preview adds the command to /home/<user>/.local/bin/grub2-theme-preview, and /home/<user>/.local/bin is in my PATH variable. Check if that file was created and if /home/<user>/.local/bin is in your PATH with echo $PATH.

Maybe you have a distro that doesn't add /home/<user>/.local/bin to your PATH by default or you removed it from the PATH by accident?