For years I've made use of old Windows PCs by reconditioning them with #GNU/#Linux OS. Usually Trisquel, or if the hardware won't support it, Mint.
After a bit of experimentation, I settled on a manual partition scheme. Which allows me to test new versions or other distros, and keep my files on a separate partition. To avoid having to restore from backups every time I upgrade my OS.
But I can't seem to get an OS to boot on newer devices with Restricted Boot, using manual partitioning. Help?
 
      
  
             
      
  
             
      
  
                            
                        
                         
      
  
             
      
  
             
      
  
                            
                        
                         
      
  
                            
                        
                         
      
  
             
      
  
             
      
  
                            
                        
                        