ftp.ntua.gr:/mirror/ubuntu/dists/bionic/main/uefi/grub-efi-amd64-amd64/current/?C=N&O=D 
Icon  Name                                             Last modified      Size  Description
[DIR] Parent Directory                                                      -   
[   ] version                                          25-Oct-2017 02:29   14   
[   ] grubx64.efi.signed                               25-Oct-2017 02:29  785K  
[   ] grubx64.efi                                      25-Oct-2017 02:29  783K  
[DIR] control/                                         25-Oct-2017 02:29    -   
[   ] SHA256SUMS.gpg                                   25-Oct-2017 02:29  819   
[   ] SHA256SUMS                                       25-Oct-2017 02:29  320
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