HiĀ I had this bug 2 years ago with ubuntu Unity. Since UEFI wasn't well supported (and documented) at that time, I tought it was the reason.
It appears that on my asus UX32VD, the fake RAID was the biggest trouble maker. I get rid of it 3 weeks ago and was able to install ubuntu MATE 14.04 and 15.04 normally . <div>-------- Message d'origine --------</div><div>De : Brian Murray <br...@ubuntu.com> </div><div>Date :25/03/2015 23:38 (GMT+01:00) </div><div>A : baka.n...@gmail.com </div><div>Cc : </div><div>Objet : [Bug 1426905] Re: grub's prerm script fails, preventing installation of vivid Ubuntu-MATE </div><div> </div>** Summary changed: - grub's prerm script fails, preventing installation of vivid + grub's prerm script fails, preventing installation of vivid Ubuntu-MATE -- You received this bug notification because you are subscribed to a duplicate bug report (1429385). https://bugs.launchpad.net/bugs/1426905 Title: grub's prerm script fails, preventing installation of vivid Ubuntu- MATE Status in Ubuntu MATE: New Status in grub2 package in Ubuntu: Triaged Status in grub2 source package in Vivid: Triaged Bug description: the collapse of the installation Ubuntu mate 15.04 ProblemType: Bug DistroRelease: Ubuntu 15.04 Package: ubiquity 2.21.13 ProcVersionSignature: Ubuntu 3.18.0-13.14-generic 3.18.5 Uname: Linux 3.18.0-13-generic x86_64 ApportVersion: 2.16.1-0ubuntu2 Architecture: amd64 CasperVersion: 1.351 Date: Sun Mar 1 18:41:07 2015 InstallCmdLine: BOOT_IMAGE=/casper/vmlinuz.efi file=/cdrom/preseed/ubuntu-mate.seed boot=casper quiet splash -- LiveMediaBuild: Ubuntu-MATE 15.04 "Vivid Vervet" - Alpha amd64 (20150225) ProcEnviron: LANGUAGE=ru_RU.UTF-8 PATH=(custom, no user) LANG=ru_RU.UTF-8 SHELL=/bin/bash SourcePackage: grub-installer UpgradeStatus: No upgrade log present (probably fresh install) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu-mate/+bug/1426905/+subscriptions -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1426905 Title: grub's prerm script fails, preventing installation of vivid Ubuntu- MATE To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu-mate/+bug/1426905/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs