Imac with 3Gb fusion drive  "no bootable device--insert boot disk and press any key.  This started over the past 2 weeks, and now occurs every day.  Initial boot to MAC OSX is Ok.

I receive the above black screen 'no bootable device' error message daily, after not using my imac for a while.  I will note that the computer will boot normally, and after a while, the screen saver initiates.  Some time later, I get the black screen error message.  I have to hard boot the computer again at this time.  Any ideas?
Thanks for your help,
JTH

That message means that your Mac restarted and that no bootable volumes were found. First, open System Preferences > Startup Disk, and choose Macintosh HD. Then, see if the problem appears.
Also, open Disk Utility, choose Macintosh HD in the sidebar and verify it. This may be a sign of a hard drive failure

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  • Imac displays a black screen stating "No bootable device --insert boot disk and press any key", imac displays a black screen stating "No bootable device --insert boot disk and press any key"

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  • "No bootable device --- insert boot disk and press any key" after setting up Bootcamp

    Hi guys,
    I am trying to install Windows 7 via Bootcamp but after setting up Bootcamp and restarting the computer I get the error message "No bootable device --- insert boot disk and press any key".
    I use an iMac with a DIY Fusion Drive consisting of a 120 GB SSD and a 1 TB HDD.
    Since Bootcamp can only be installed on the HDD I believe disk1 is the interesting one. Here is the output of sudo gpt -r -vv show disk1:
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    gpt show: disk1: Suspicious MBR at sector 0
    gpt show: disk1: Pri GPT at sector 1
    gpt show: disk1: Sec GPT at sector 1953525167
           start        size  index  contents
               0           1         MBR
               1           1         Pri GPT header
               2          32         Pri GPT table
              34           6        
              40      409600      1  GPT part - C12A7328-F81F-11D2-BA4B-00A0C93EC93B
          409640  1709658208      2  GPT part - 53746F72-6167-11AA-AA11-00306543ECAC
      1710067848     1269536      3  GPT part - 426F6F74-0000-11AA-AA11-00306543ECAC
      1711337384          88        
      1711337472   242186240      4  GPT part - EBD0A0A2-B9E5-4433-87C0-68B6B72699C7
      1953523712        1423        
      1953525135          32         Sec GPT table
      1953525167           1         Sec GPT header
    And the output of sudo fdisk /dev/disk1:
    Disk: /dev/disk1
    geometry: 121601/255/63 [1953525168 sectors]
    Signature: 0xAA55
             Starting       Ending
    #: id  cyl  hd sec -  cyl  hd sec [     start -       size]
    1: EE    0   0   2 -   25 127  14 [         1 -     409639] <Unknown ID>
    2: AF   25 127  15 - 1023 254  63 [    409640 - 1709658208] HFS+       
    *3: 07 1023 254  63 - 1023 254  63 [1711337472 -  242186240] HPFS/QNX/AUX
    4: 00    0   0   0 -    0   0   0 [         0 -          0] unused
    Here is also the list of my disks:
    /dev/disk0
       #:                       TYPE NAME                    SIZE       IDENTIFIER
       0:      GUID_partition_scheme                        *120.0 GB   disk0
       1:                        EFI EFI                     209.7 MB   disk0s1
       2:          Apple_CoreStorage                         119.7 GB   disk0s2
       3:                 Apple_Boot Boot OS X               134.2 MB   disk0s3
    /dev/disk1
       #:                       TYPE NAME                    SIZE       IDENTIFIER
       0:      GUID_partition_scheme                        *1.0 TB     disk1
       1:                        EFI EFI                     209.7 MB   disk1s1
       2:          Apple_CoreStorage                         875.3 GB   disk1s2
       3:                 Apple_Boot Recovery HD             650.0 MB   disk1s3
       4:       Microsoft Basic Data BOOTCAMP                124.0 GB   disk1s4
    /dev/disk2
       #:                       TYPE NAME                    SIZE       IDENTIFIER
       0:                  Apple_HFS FusionDrive            *975.5 GB   disk2
                                     Logical Volume on disk0s2, disk1s2
                                     FFA13FBC-2001-40B7-8BBB-BE6EECF8AC11
                                     Unencrypted Fusion Drive
    /dev/disk3
       #:                       TYPE NAME                    SIZE       IDENTIFIER
       0:                            GRMCPRXFRER_DE_DVD     *3.2 GB     disk3
    I have gdisk installed and am ready to mess around. Any help would be greatly appreciated!

    So, when I started my iMac yesterday morning it couldn't boot into OS X anymore either. Several hours of restoring later I am back to square one. I tried installing Windows 7 via Bootcamp again but got the same error message. This time I noticed though that Bootcamp asked me to remove the bootable option from the USB drive with the support drivers in order to install from DVD. Does that ring any bells? I am building another USB drive right now, hoping it would ask me again but this I will decline and try to boot from it.
    When you restored, was a Time Machine restore used? TM does not backup Bootcamp and does an erase of the partition. It may also erase the entire disk (including the Fusion drive) if the specific backup of the volume layout of the disks indicates a pre-Bootcamp layout.
    My MacBook Pro is a 2009 model and also once had a built-in optical drive. I have no idea why it would work on there but not on the iMac.
    You also wrote
    When I plug the external DVD drive in, the boot manager recognizes a "Windows" disc and an "EFI Boot" disc. If I select the "Windows" disc I get a black screen with a blinking dash.
    The blinking dash indicates that it is working, but does not have the requisite drivers to enable the GPU/Mouse/Keyboard on the media being used.
    In the MBP case, did you have two drives installed in the MBP, a Fusion configuration, and then were able to successfully install Bootcamp?
    For example on a Mac mini I have a DIY Fusion drive, but the sequence was done differently. Bootcamp was installed using a USB stick+Windows 7 ISO.
    1. The two disks are not in a CoreStorage set up initially.
    2. The second disk is partitioned (64Gb) and a Bootcamp W7 install completed via USB (this is different HW as compared to IMac, because it has no Optical drive).
    3. After the HDD is partitioned, the first partition and the SSD are then used to create a CoreStorage volume.
    4. Here is the working version and disk layout. (I plan to erase both disks, put W7 on a partition on the SSD, and make the non-Bootcamp+entire HDD in a CoreStorage volume).
    diskutil cs list
    CoreStorage logical volume groups (1 found)
    |
    +-- Logical Volume Group A8C00490-0E14-401F-AB69-59F37724E8C4
        =========================================================
        Name:         Fusion
        Status:       Online
        Size:         1190201270272 B (1.2 TB)
        Free Space:   0 B (0 B)
        |
        +-< Physical Volume 4772013B-5520-4801-9BE5-BCAEF4AEDAB3
        |   ----------------------------------------------------
        |   Index:    0
        |   Disk:     disk0s2
        |   Status:   Online
        |   Size:     255716540416 B (255.7 GB)
        |
        +-< Physical Volume A679A101-3C78-4A59-B5EE-A4339210CFAD
        |   ----------------------------------------------------
        |   Index:    1
        |   Disk:     disk1s2
        |   Status:   Online
        |   Size:     934484729856 B (934.5 GB)
        |
        +-> Logical Volume Family 5EF5C7CA-0B9C-4169-82A1-41C84F206672
            Encryption Status:       Unlocked
            Encryption Type:         None
            Conversion Status:       NoConversion
            Conversion Direction:    -none-
            Has Encrypted Extents:   No
            Fully Secure:            No
            Passphrase Required:     No
            |
            +-> Logical Volume 1512657C-ED13-4B31-82C6-7AECBBCA7F98
                Disk:                  disk2
                Status:                Online
                Size (Total):          1185508581376 B (1.2 TB)
                Conversion Progress:   -none-
                Revertible:            No
                LV Name:               Fusion HD
                Volume Name:           Fusion HD
                Content Hint:          Apple_HFS
    diskutil list
    /dev/disk0
       #:                       TYPE NAME                    SIZE       IDENTIFIER
       0:      GUID_partition_scheme                        *256.1 GB   disk0
       1:                        EFI EFI                     209.7 MB   disk0s1
       2:          Apple_CoreStorage                         255.7 GB   disk0s2
       3:                 Apple_Boot Boot OS X               134.2 MB   disk0s3
    /dev/disk1
       #:                       TYPE NAME                    SIZE       IDENTIFIER
       0:      GUID_partition_scheme                        *1.0 TB     disk1
       1:                        EFI EFI                     209.7 MB   disk1s1
       2:          Apple_CoreStorage                         934.5 GB   disk1s2
       3:                 Apple_Boot Boot OS X               650.0 MB   disk1s3
       4:       Microsoft Basic Data BOOTCAMP                64.9 GB    disk1s4
    /dev/disk2
       #:                       TYPE NAME                    SIZE       IDENTIFIER
       0:                  Apple_HFS Fusion HD              *1.2 TB     disk2

  • "No bootable device" -- insert book disk and press any key

    Hello, I am having a little problem with my new iMac. I search in google and I don't seem to get an answer...or maybe I just don't know which one I should do...
    This is what happen. When I turn on my iMac it goes to a white screen, then to a black screen saying "No bootable device -- insert book disk and press any key" I can't press any key at all so I try restarting...same message goes.
    Before this happen I did do one thing which I don't know if this is the cause of it. I change the trash can icon...how I did that is I went to...
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    I just replace the trash can image with the new one, same name as the old. It did change but then this black screen message start happening...
    I search on google, some people say to hold alt-option key when you are in the white screen and then enter your drive from there. I did that and that is how I get to here to ask you guys...how can I get rid of that black screen?
    Some people say you have to reinstall Windows 7 under Bootcamp or something...but I dont have Windows 7 in this iMac. I still did try going to Bootcamp and reinstall things but once I click continue, it said "To create a bootable USB drive for Windows 7 or later version installation, select the Windows ISO image, select a destination USB drive, and then click Continue." But I don't have a ISO image...
    Anyway so that is why I need help, I don't know how I can get rid of the black screen so I don't have to always hold alt-option to get in to my computer.
    Please help if you know how to fix this. Thank you so much!!!

    Sounds like hardware problems, make appointment with Apple to have them check it out for you.

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