Hi,
thanks all for the help at end I missed to create a bootbios partion of 2MiB once I added that the system booted. The strange point is that I didn't find it explained in any tutorial but thanks to your advice I noticed that entry in the filesystem menu.

Walter

On Thu, Dec 24, 2015 at 2:04 PM, maderios <maderios@gmail.com> wrote:
On 12/23/2015 11:58 PM, Walter Cazzola wrote:

On Dec 23, 2015 11:34 PM, "Doug H." <fedoraproject.org@wombatz.com
<mailto:fedoraproject.org@wombatz.com>> wrote:

 > As maderios has pointed out, this partitioning does not look
 > workable. I don't think you can toggle the boot flag on for an extended
 > partition.

Ok tomorrow I'll redo the installation.

But just to do the right thing since the beginning how should the the
disk be partitioned?

Considering that the windows installation is split over three partitions
(sda1-3) that I won't touch and I would like to have
-/var
-/tmp
-/
-/home
- swap
-/opt
-/boot
- and a vfat partition to exchange data with Windows
On separate partitions.

Also I don't know what this efi partition (that maderios is mentioning)
is and is for. And how I should create it.
If you want only one system, F23,  installed on hour hd, I suggest simple partitionning
/dev/sda1 /boot/efi
/dev/sda2 swap
/dev/sda3  /
/dev/sda4  /home

If you want dual boot F23 + Windows, example
/dev/sda1      /boot/efi
/dev/sda2      W$
/dev/sda3      W$
/dev/sda4     swap
/dev/sda5      /
/dev/sda6      /home


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