i can't installing ubuntu

[hasnae briouya]

when i will install ubuntu they tell that i have a problem in bug and i will send a report

ProblemType: Bug
DistroRelease: Ubuntu 18.04
Package: ubiquity 18.04.14.6
ProcVersionSignature: Ubuntu 4.15.0-29.31-generic 4.15.18
Uname: Linux 4.15.0-29-generic x86_64
ApportVersion: 2.20.9-0ubuntu7.2
Architecture: amd64
CasperVersion: 1.394
Date: Fri Feb 8 12:56:13 2019
InstallCmdLine: BOOT_IMAGE=/casper/vmlinuz file=/cdrom/preseed/ubuntu.seed boot=casper quiet splash ---
LiveMediaBuild: Ubuntu 18.04.1 LTS "Bionic Beaver" - Release amd64 (20180725)
SourcePackage: grub-installer
UpgradeStatus: No upgrade log present (probably fresh install)

[Seth Arnold (seth-arnold)]

Thanks for taking the time to report this bug and helping to make Ubuntu better. We appreciate the difficulties you are facing, but this appears to be a "regular" (non-security) bug. I have unmarked it as a security issue since this bug does not show evidence of allowing attackers to cross privilege boundaries nor directly cause loss of data/privacy. Please feel free to report any other bugs you may find.

[Seth Arnold (seth-arnold)]

Hello, it looks like there's no EFI partition but an EFI installed was tried. I hope this helps.

Thanks

Feb 8 12:55:01 ubuntu ubiquity: Installation pour la plate-forme x86_64-efi.
Feb 8 12:55:01 ubuntu ubiquity: grub-install : erreur : impossible de trouver le répertoire EFI.
Feb 8 12:55:01 ubuntu ubiquity: dpkg: error processing package grub-efi-amd64-signed (--configure):
Feb 8 12:55:01 ubuntu ubiquity: installed grub-efi-amd64-signed package post-installation script subprocess returned error exit status 1
Feb 8 12:55:01 ubuntu ubiquity: Errors were encountered while processing:
Feb 8 12:55:01 ubuntu ubiquity: grub-efi-amd64-signed
Feb 8 12:55:05 ubuntu ubiquity: E: Sub-process /usr/bin/dpkg returned an error code (1)