no grub after installing fedora23

[maderios]

On 12/23/2015 01:23 AM, Walter Cazzola wrote:
> Dear Fedora Experts,
> I' ve recently bought a new Dell Precision m6800 and today I was trying
> to install Fedora 23 in dual boot with windows 7 (this was the OS
> originally on the machine).
>
> I' ve run the installer from the live CD and after a couple of wrong
> attempts I successfully finished the installation process without errors
> or at least apparently without errors.
>
> I' ve restarted the machine I got into the following error message:
>
> *file "/boot/grub2/i386-pc/normal.mod" NOT FOUND
>      grub rescue>*
>
> neither windows nor fedora boot.
>
> Booting again from the live cd I got that ever the partition are there:
>
>
> Device     Boot     Start        End    Sectors   Size Id Type
> /dev/sda1              63      80324      80262  39.2M de Dell Utility
> /dev/sda2  *         81920   25710591   25628672  12.2G 27 Hidden NTFS WinRE
> /dev/sda3        25710592  201408511  175697920  83.8G  7 HPFS/NTFS/exFAT
> /dev/sda4       201408512 1953523711 1752115200 835.5G  5 Extended
> /dev/sda5       201410560  202776575    1366016   667M 83 Linux
> /dev/sda6       202778624  307636223  104857600    50G 83 Linux
> /dev/sda7       307638272  341192703   33554432    16G 82 Linux swap /
> Solaris
> /dev/sda8       341194752  351680511   10485760     5G 83 Linux
> /dev/sda9       351682560  360071167    8388608     4G 83 Linux
> /dev/sda10      360073216  368461823    8388608     4G 83 Linux
> /dev/sda11      368463872  371609599    3145728   1.5G  6 FAT16
> /dev/sda12      371611648 1953523711 1581912064 754.3G 83 Linux
>
> where sda1-3 are the original windows partitions, sda5 is /boot and sda6
> is /
>
> I' ve mounted the /boot partition and inside grub2 there is not i386-pc
> dir nor the normal.mod file. I' ve tried to manually copy
> /usr/lib/grub/i386-pc/normal.mod into /boot/grub2 but the only
> difference I got is that the boot is stucked on
>
>    grub>
>
Hi
Why an extended partitition? It should a gpt partitioning with efi. 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'

-- 
Maderios