[Bug 1742478] Re: It's apere while instalation get about 80% of progress. It write "Instalacja pakietu 'grub-efi-amd64-signed' w /target/ nie powiodła się."

Your disk is currently partitioned to boot in bios mode, but you booted the installer in EFI mode. A warning message prompted you that this could be a problem and recommended performing a bios mode install instead, but you chose not to. You either need to perform the bios mode install, or partition

[Bug 1742478] Re: It's apere while instalation get about 80% of progress. It write "Instalacja pakietu 'grub-efi-amd64-signed' w /target/ nie powiodła się."

** Attachment added: "Screenshot from 2018-01-10 17-15-21.png" https://bugs.launchpad.net/ubuntu/+source/grub-installer/+bug/1742478/+attachment/5034525/+files/Screenshot%20from%202018-01-10%2017-15-21.png -- You received this bug notification because you are a member of Ubuntu Bugs, which is