can not boot from the hard drive

On an iMac 21.5 ", OS 10.10.5 Yosemite:

Deleted and a 500 GB external hard drive well prepared for use as a bootable hard drive. Installed OS 10.10.4 Download Yosemite on the Apple Store. When you select it as the drive hard start, it only offers itself as a restore for Time Machine option. Cannot start it up like a normal hard drive for other purposes. You want to use as a test drive for the software.

During the installation of Yosemite, the installation by a loop repeatedly to infinity in 24 minutes each iteration to complete. I finally chose to leave the Setup process.

What is going on?

Have you created a USB Installer to install Yosemite? Or, have you tried to install after it finished downloading?

Create an installer for OS X - Apple support bootable

Tags: Mac OS & System Software

Similar Questions

  • Reinstall vista again HARD drive now PC don't can not boot from the DVD drive I can copy vista external hard disk drive, and then install on the laptop

    Duplicate info wire - running kill disk, vista disappeared and my laptop does not see my dvd/cd drive and I can't reinstall vista OS because of this problem

    Have to reinstall vista on a new HARD drive now PC can not boot from the DVD drive I can copy vista external hard disk drive, and then install on the laptop?

    The DVD player worked before HARD drive went bad now, it won't work.

    And I just replaced the HARD drive, but now cannot load an operating system that he...

    Help, please...

    Hi dynamitenews

     

    1. are you able to boot to the desktop?
    2. what happens when you try to start the computer?

     

    You must have the DVD drive to start the computer using the disk, you cannot use the external hard drive to do the same thing.

    Also I suggest you to make sure you have defined the start as CD/DVD-Rom as the first choice option in the BIOS. See below the help link-
    http://Windows.Microsoft.com/en-us/Windows7/BIOS-frequently-asked-questions

    If nothing is done, then you can contact the manufacturer support for assistance on setting up the correct boot sequence and check.

    BIOS WARNING-
    Change (CMOS) BIOS/complementary metal oxide semiconductor settings can cause serious problems that may prevent your computer from starting properly. Microsoft cannot guarantee that problems resulting from the configuration of the BIOS/CMOS settings can be solved. Changes to settings are at your own risk.

     

    I hope this helps.

  • Z575 will not boot from the hard drive or restore DVD

    Need help on a laptop Z575 age of 2 years that immediately after an automatic update of windows, will not start either from the hard disk or restore DVDs (blue screen). Does not start in safe mode, not booting from a rescue of third party DVD. Attempt to start, it will show you the ability to start the Startup Repair tool. Repair shows that it is unable to fix with the detail following problem error messages:
    Signature of the problem 1: 6.1.7600.16385
    Signature of problem 2: 6.1.7600.16385
    Signature of the problem 3: unknown
    Signature of the 4:21200196 problem
    Signature problem 5: auto failover
    Signature of the problem 6:7
    Signature of the 7 problem: bad driver
    OS version: 6.1.7601.2.1.0.256.1

    Normally think that the hard drive has failed or that windows update caused a software problem, but the inability to boot from any restore disk that makes me think that there is another serious problem with the hardware of the laptop.

    Any help would be appreciated. THX

    Additional note: when you try to boot from a restore disc, blue screen, error message:
    Stop: 0x0000007B (0xF78DA640, 0xC0000034, 0x00000000, 0x00000000)
    It is a hardware failure that cannot be restarted soft.

    I also removed the hard drive and RAM, reinstalled and rebooted, no change.

    Additional note: I was able to access the hard drive with a recovery of old program, focused on the (SpaceFM) ram charged through the DVD player. Hard drive data appears intact. Still does not start from the hard disk or a DVD of windows system.

    Thank you. Rather than buying a 4 GB or more large key USB comes from put this into hard drive replacement. Installed correctly, boots very well now. No other error of the optical drive... and no explanation I can see, but that's it.

    Unless something else pops up we'll just call cela a HARD drive failed after 2 years of common use. Thanks again.

  • XP does not start from the hard drive

    I have an old pc under win xp. It does not drive start hard when it starts. I always have a cd/dvd in master dvd for it to start windows players. Can anyone help?

    herikhi

    Hi herikhi,
     
    Change the start of the base system (Input Output) BIOS setting to boot from the hard drive.
     
    Consult the manual of the manufacturer, to do the same thing.
     

    NOTE: BIOS change / semiconductor (CMOS) to complementary metal oxide settings can cause serious problems that may prevent your computer from starting properly. Microsoft cannot guarantee that problems resulting from configuration can resolved BIOS/CMOS settings. Changes to settings are at your own risk.

  • (Redirected) Cannot boot from the HARD drive on dell n5010 with SSD and HARD drive installed

    I have my old dell n5010 (15R Inspiron) with SSD (Samsung EVO 840 120 G) installed on the main drive Bay and the HDD (Samsung HJJ 500 G) on the optical drive Bay.

    It is a typical way to add an SSD on such an old laptop (bought from dell.com.cn in 2011).

    My Windows 10 operating system has been installed on the SSD using Samsung Data Migration software, so the previous C drive was pointless. So I formatted and installed an operating system Ubuntu 14.04 on it, hoping the grub OSs double beginning located on the HARD disk.

    However, I find no the Dell bios boot option to boot from the HARD drive installed in my optical drive Bay. All the choices are 'Hard Drive', 'Network' and 'Diagnostic '.

    But I was definitely sure that my bios program has detected the SSD and HDD with information on the main menu of the bios.

    And the LED on the optical drive Bay was immediately once I pressed the Start button on my laptop.

    As a general rule, all things were right except for options of the bios boot.

    Is there a way I can boot from HDD (with installed Ubuntu) while remaining has my SSD on the main drive Bay? I don't want to swap their positions, because the SSD is super fast on the main drive Bay.

    I have alse won't migrate 10 Windows to the HARD drive and reinstall Ubuntu on the SSD, because I'd like my windows be loaded quickly.

    Someone at - it the same problem with me?

    Any suggestion is appreciated!

    As you have a laptop, better make this laptop in the computer Forum post here:

    http://en.community.Dell.com/support-forums/laptop/default.aspx

    Bev.

  • can not boot from the CD

    I have a Dimension 8300 running XP Pro and I am trying to reformat the hard drive and reinstall XP.  I can't boot from the CD.  At startup after F12 and selected to boot from the CD, the sytem always starts on the hard drive. I changed the BIOS boot sequence, but still no luck.  The works of CD to read and write, but no boot from the OS disk.  Once the system boots from the hard drive I can start the CD of the OS that gives me the ability to reinstall XP, but no option to reformat.  My top disc is a DVD-ROM and the second disc is a CD - R.  I tried to boot from both drives, but the machine continues to boot from the hard drive.  Any suggestions?


  • Cannot boot from the HARD drive in AHCI on Satellite C mode

    I tried to get this satellite working for these past two weeks. I think I've tried all of the suggestions I found on this forum and others.

    My problem: I can not boot from drive c: in AHCI, only in compatibility mode. I can boot from the D: (recovery partition) in AHCI mode. When the recovery is complete, and when it gets to the first reboot, try to boot from the system newly created on the C:, I return the compatibility mode.

    I replaced the drivers on the C: drive.

    I extracted the AHCI drivers and copied in the root of a USB bootable. I try to do a clean install of windows 7, I get to where it shows the partitions. He tells me that it can not load the system on any of the partitions, I the AHCI mode (if the mode is set to compatibility it will load the system in one partition).
    I select "load drivers" and select the driver in the root directory, it loads the driver and then reports that it can not load the system on any of the partitions.

    I'm puzzled. I acquired pilots everywhere, the last set of drivers I used to try to do a clean install, I have acquired the Canadian official Toshiba site.

    Does anyone have any suggestions?

    Concerning
    Boyde

    BTW, this is Windows 7, I'm trying to get back to.

    Can someone help me with this?

    Boyde

  • 8000 elite: try to boot from the hard drive

    After placing a ssd, I get this notification. nothing else happens.

    I checked the bios, but I noticed that I can not change the boot sequence (ssd hard drive first, the other second place) so I changed the sata cables too the ssd is the startup disk.

    someone who can help?

    the ssd already has an operating system installed

    Sorry, from your description, I thought you might have "migrated" Win10 from the HARD disk to the SDS, and when people do this by copying partitions, they almost always forget migrate partition, including the bootloader files.

    So you did a clean install of Win10 for the SSD?

    If this is the case, you might be able to fix it by running the win10 installation media startup repair.

    To do this, you will need to use the link to the installation media to download Win10 and burn a DVD or create a USB key: http://windows.microsoft.com/en-us/windows-10/media-creation-tool-install?ocid=ms_wol_win10

    Note that when you download and build install media, the default tool corresponding to what is already installed on your PC (as in home for the House, and 64-bit to 64 - bit).  While you CAN change these settings, are NOT.  If you do, the media that results will be different and will force you to enter a NEW product code.

    Then, follow these instructions to run the Startup Repair tool: Doing - Startup Repair

    You may need to do this same series of steps three times.

    Good luck

    I'm a volunteer and I do not work for, or represent, HP.
    ========================================================================
    If you feel that my suggestions helped you, please click on the thumbs-up symbol to say thank you!

    If they helped to solve your problem, please click 'Accept as Solution' to help others find similar information.

  • Can not boot from the CD to recover OS - Portege M200

    Hello

    I'm working on my Portege M200 friends that she bought used. Only, it came with an external USB CDROM drive and the laptop computer AC adapter. To make things better the HD is no longer recognized by the BIOS. I had a spare HD so I installed it and now the BIOS see the new HD, Yay!

    I also discovered that I could buy a replacement Toshiba system recovery CD, new Yay! But before I do that I wanted to make sure I could boot from the external CDROM drive. I plugged the CDROM drive and attempted to start on a spare windows xp CD. But it does not start on the CD. I made sure that the CD-rom drive has been first in the BIOS boot priority, but that doesn't seem to work.

    I read the other posts that mention the boot directly from the external CD-rom USB drive does not work and I have to boot to the CD-rom drive by plugging the CD-rom drive in a PCMCIA card. If I have to buy a PCMCIA card that has USB ports for connecting external USB CDROM drive in for I can boot from a CD?

    If there will be any brand/type of work? If this is not the case, what brand/type is known to work.
    Any advise will be greatly appreciated!

    BIOS of the portege recognise only a limited number of pcmcia-CD-disks

    in this thread you will find all the information you need:
    http://forums.computers.Toshiba-Europe.com/forums/thread.jspa?MessageID=71179𑘋

    but your portege also boots most of the readers of usb_FDD; If you make a BACK-boot disk with the appropriate drivers for your CD-ROM usb drive you can use it without restrictions bios

    as you can read that this method will work only in a DOS environment, that is why it is absolutely necessary to format your hard drive to fat32, otherwise it will not be recognized

  • Vista 64 does not start after the bios screen. Can not boot from the recovery cd or help

    Last night a MS pushed a windows update and my pc restarted automatically.  But it does not actually restart.

    The PC goes through the bios tests, passes and then crashes and does not start in Vista.

    I can't start at all, including safe mode.

    I can't the system recovery option in HP bios to load.  Can I only use my Vista64 system recovery bootable cd or actually start.

    First of all, I thought it was a HARD drive problem, but tests of the bios disk hard that all spend, even the 2 hours 'SMART' test that he was running.

    Help

    Hello

    What happens when you try to boot from the recovery CD? You receive messages or error codes?

    You can check if the boot in the BIOS settings priority is configured to boot to CD\DVD.

    NOTE: Change (CMOS) BIOS/complementary metal oxide semiconductor settings can cause serious problems that may prevent your computer from starting properly. Microsoft cannot guarantee that problems resulting from the configuration of the BIOS/CMOS settings can be solved. Changes to settings are at your own risk.

    For more information, you can consult the following article:

    BIOS: Frequently asked questions

    If you still experience the problem, you may need to contact HP for assistance.

    HP support

    Hope this information is useful.

  • Can not boot from the disk of my Satellite C

    1st I have a problem

    Windows Boot Manager
    Windows has encountered a problem communicating with a device connected to your computer.

    File:------Boot\BCD
    Status: 0xc00000e9
    Info: An unexpected I / 0 error

    To resolve this problem, I tried to install the Windows 8-64 bit (definitions of factory programs) - with the correct Toshiba drives, but after installation, that it took place...

    "reboot and select proper boot device or Insert Boot Media in selected boot device and press a key."

    I changed the boot disk priority, but it is still this bug.

    What model of laptop do you have exactly?

    Have you changed anything in the BIOS?

    The error message mentioned (reboot and select proper boot device) appear if the laptop can not find a boot device.
    Go into the BIOS and check if the HARD drive is set as first boot device.

    In addition, you should check if the HARD drive appears on the first page of the BIOS with all the details of the unit (size of the HARD drive, name).
    I guess this question could appear due to a malfunction of the HARD drive.

  • Portege R100 boots from the HARD drive - lack of operating system

    Hello

    I have a Portege R100 which won't the HD boot, I get the message "missing operating system".
    I don't have a compatible CD or floppy, I just about 1.8 inches for the hd, it works and I also have norton ghost 2003 is installed in another computer (a toshiba satellite A45).

    I tried to recover the drive with the help of norton and the image of the Ghost in the recovery CD, but it keep asking for a password.

    I would like to know if there is a way to use the restore with norton CD and usb driver and password screen (or where I can get the password?).

    Thank you!

    What password do you mean?

    and what recovery CD do you use? The image on the Toshiba Recovery CD is locked and cannot be extracted.

    It turns out that you cannot start or install the OS on the USB key!
    You must boot from the CD/DVD compatible player that can be connected to the PC card slot.

  • Can not boot from the recovery disc - 0x000000D1 Driver_IRQL_not_less_or_Equal

    original title: cannot boot from the Vista recovery disc

    A real problem. Vista is prompting me to boot from my recovery disc and allow the repair of Windows. However, when I insert the disk it shows loading Windows, but once he starts to launch I get the BSOd with the "Driver_IRQL_not_less_or_Equal" error report with the error code Stop 0x000000D1. I searched on advice but all I can get into the repair mode, but I can't. F8 does not work in safe mode. Week last ChkDisc has run on every start and yesterday I received a number of parts of Vista won't load does not with error reports. Today, it started with Windows can not load the warning and instructions for use the recovery disk... I'm in a loop as I cannot cross the BSOD! Help please

    Mick

    Computers are strange animals. After my response to you, I had another attempt to go beyond the blue screen. Hey hop this time my computer decided that he had enough rest and proceeded without delay to start and I would like to action, the recovery disk. There then reinstall Windows Vista and am now to a new computer! It's time to move to Windows 7! The only thing I did yesterday was to unplug my printer to my laptop!

  • WIndows 8.1 does not start from the HARD drive

    Put a new WD HDD in a Samsung laptop. Install windows 8.1 form DVD and restart get an error "tried all options press F4 to start recovery.

    He wants to boot from the DVD, but I have the HARD drive as the number of boot option in the bios. What's new?

    The symptoms you describe seem to indicate that the startup information has been lost of the HD.  The HD is faulty or something destroys the startup information.

    Try to do a repair from the installation DVD.

  • error 303_will will not boot from the optical drive W / re disc

    Thanks for your time

    I have a pre Home HP G71 449WM computer PORTABLE PC WINDOWS 7 X 64

    I ran diag, he gave me (hard disk 1 (303) quick test full 10% complete)

    (305) full hard disk 1, HARD TEST drive has FAILED: what about hard disk

    failing or failed in any case, I changed the HARD drive for an ssd sata 2 and installed

    He also ordered the discs (3) of recovering formatted the SSD to another

    PC (primary healthy NTFS partition) No. DRIVE LETTER when formatted

    I loaded the 1st recovery disc in the optical drive, but it wouldn't start

    optical drive AND MY SCREEN IS WHITE

    the recovery disc are Moose HP (BDPX4721)

    THE SSD WORKED OK IN THE OTHER PC... ANY IDEAS WHAT I AM DOING WRONG?

    the printer has to do with boot_recovery_error 303

Maybe you are looking for