no grub after installing fedora23

[Walter Cazzola]

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>

So what I have to do to fix the situation and be able to run both windows
and linux?

thank you in advance for your help.

Walter
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