Q: Bootcamp drive in startup disks but doesn't appear in startup options ?

Hello world,

I'm running a 2012 Mac Mini, Core i5 3210M with a brand new Crucial MX200 1To and another 1To on a ST1000LM014 (not a SSD).

I've installed El Capitan on the Crucial and a Bootcamp partition on the other drive.

I can use the Bootcamp partition in Parallel Desktop, I can see it in the Startup drives in pref pane, but can't boot on it and can't see it in startup options (pressing alt key after booting the Mac)

When I restart after selected it in startup disks in pref pane, I've an error : "no boot device available insert boot disk and press any key"

Here's the diskutil list results, if it helps :

   #:                       TYPE NAME                    SIZE       IDENTIFIER

   0:      GUID_partition_scheme                        *1.0 TB     disk0

   1:                        EFI EFI                     209.7 MB   disk0s1

   2:                  Apple_HFS 2                      499.6 GB   disk0s2

   3:       Microsoft Basic Data BOOTCAMP                500.1 GB   disk0s3

/dev/disk1 (internal, physical):

   #:                       TYPE NAME                    SIZE       IDENTIFIER

   0:      GUID_partition_scheme                        *1.0 TB     disk1

   1:                        EFI EFI                     209.7 MB   disk1s1

   2:                  Apple_HFS 1                      999.3 GB   disk1s2

   3:                 Apple_Boot Recovery HD             650.0 MB   disk1s3

/dev/disk2 (external, physical):

   #:                       TYPE NAME                    SIZE       IDENTIFIER

   0:     FDisk_partition_scheme                        *8.1 GB     disk2

   1:               Windows_NTFS                         8.1 GB     disk2s1

/dev/disk3 (external, physical):

   #:                       TYPE NAME                    SIZE       IDENTIFIER

   0:      GUID_partition_scheme                        *2.0 TB     disk3

   1:                        EFI EFI                     209.7 MB   disk3s1

   2:                  Apple_HFS Time machine            2.0 TB     disk3s2

/dev/disk4 (external, physical):

   #:                       TYPE NAME                    SIZE       IDENTIFIER

   0:        CD_partition_scheme                        *36.1 MB    disk4

   1:     Apple_partition_scheme                         31.5 MB    disk4s0

   2:        Apple_partition_map                         32.3 KB    disk4s0s1

   3:                  Apple_HFS WD Unlocker             4.8 MB     disk4s0s2

/dev/disk5 (external, physical):

   #:                       TYPE NAME                    SIZE       IDENTIFIER

   0:     FDisk_partition_scheme                        *1.0 TB     disk5

   1:                 DOS_FAT_32 ELEMENTS                1.0 TB     disk5s1

Any solution to my problem ?

Thanks