On Wed, Dec 23, 2015 at 4:32 AM, maderios <maderios@xxxxxxxxx> wrote: > Why an extended partitition? It should a gpt partitioning with efi. Nope, Windows 7 pre-installed. Dell enabled the CSM on those systems. So it's got the faux-BIOS enabled and thus MBR is required. Windows 7 did support UEFI but it was crap so many vendors just opt to have the CSM enabled. Ideally he'd try to get a Windows 8.1 upgrade for free (?) and then disable the CSM, sometimes perversely in the UI it's an option to "enable UEFI" as if it's even possible to disable it. Your > 'Dell Precision m6800' uses uefi but you have not any efi partition > http://www.manualslib.com/manual/563583/Dell-Precision-M6800.html?page=58 > For me, your install is wrong. First, You have to disable uefi secure boot > in your bios, then install F23. Installer has to detect an efi partition > like '/boot/efi' OK please definitely stop suggesting people disable UEFI Secure Boot, it's bad advice and it's not necessary, Fedora supports Secure Boot just fine. On any system that has Secure Boot enabled with Windows on it, *especially* this is bad advice as it exposes the user unnecessarily to bootloader malware and that's not good. It's a huge PITA to get rid of those. -- Chris Murphy -- users mailing list users@xxxxxxxxxxxxxxxxxxxxxxx To unsubscribe or change subscription options: https://admin.fedoraproject.org/mailman/listinfo/users Fedora Code of Conduct: http://fedoraproject.org/code-of-conduct Guidelines: http://fedoraproject.org/wiki/Mailing_list_guidelines Have a question? Ask away: http://ask.fedoraproject.org