ftp.ntua.gr:/mirror/ubuntu/dists/groovy/main/uefi/grub2-amd64/2.04-1ubuntu34/?C=D&O=A 
Icon  Name                                             Last modified      Size  Description
[DIR] Parent Directory                                                      -   
[   ] SHA256SUMS                                       20-Sep-2020 11:58  650   
[   ] SHA256SUMS.gpg                                   20-Sep-2020 11:58  819   
[DIR] control/                                         20-Sep-2020 11:58    -   
[   ] gcdx64.efi                                       20-Sep-2020 11:58  1.4M  
[   ] gcdx64.efi.signed                                20-Sep-2020 11:58  1.4M  
[   ] grubnetx64.efi                                   20-Sep-2020 11:58  1.4M  
[   ] grubnetx64.efi.signed                            20-Sep-2020 11:58  1.4M  
[   ] grubx64.efi                                      20-Sep-2020 11:58  1.6M  
[   ] grubx64.efi.signed                               20-Sep-2020 11:58  1.6M  
[   ] version                                          20-Sep-2020 11:58   15
Apache/2.2 Server at ftp.ntua.gr Port 80