Is it possible to restart El Capitan of the external drive on my iMac?

Is it possible to restart El Capitan of the external drive on my iMac?

Gene,

Yes, it is possible. If you are having problems, read Re: El Capitan refuses to boot from the external drive for a few possible reasons it may not work.

Tags: Mac OS & System Software

Similar Questions

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    El Capitan upgrade is complete. Now Mac does not recognize my "WD Book Essential external drive" which is not complete. Tried 20 times. Icon WD Book appeared on the desktop once. Bkup began, it stopped! Time Machine displays "Unable to complete backup" and cannot get the icon to reappear on desktop. Stop Mac, unplugged, used different usb port, different electrical outlets... what else?  The USB cords very well. Y at - it an upgrade of Mac to run the connection? Cannot test it on another computer, none are available. BK in last place on 12 / / 15. Help, please!

    It may be a physical problem with the drive. Try this...

    Launch/Utilities/Terminal and copy & paste this command at the command prompt:

    diskutil list

    Press return.

    If it sees the drive, note the number of the disk (left column) that you want to mount.

    Then enter this command:

    Mount /dev/ (number of disk)

    Put the number without parentheses.

    Press return.

    Also can try

    mount/dev / strength (number of disc)


  • Since I downloaded El Capitan I think I can't paste it into my external hard drive.  I use to download my card reader, copy it, and then download to a new folder on the external drive.  It will not work now and nor can I create new folders on the hard dr

    I used to download pictures from a card reader, copy them, and then stick it on my external hard drive.  Since El Capitan of download, it does not work - I can download and copy, but can not stick to the external hard drive.  I can't set up the files on the external hard drive either.  However, I can download what is already on the external hard drive without any problem.

    How the external drive is formatted?

  • Restart the external drive loop

    I'm trying to downgrade an old MacBook 13 inch (unibody), it's current run 10.11, but decided it was too system for the small laptop. Swap on the HD for those who had 10.5 and it would just keep restarting. I tried even to remove the HD and reboot only with the 10.2 installation disc and it would always be in the loop. Only time where it works properly is with 10.11 back in HD.

    It's very unusual, because I have no memory of this never happens with other OS.

    You need the original Installer 1 disc that came with the computer or a 10.6.3 retail DVD of Snow Leopard. Then follow these instructions:

    Snow Leopard erase and install

    1. Insert the Snow Leopard DVD in the optical drive and restart the computer.
    2. Immediately after hearing the chime hold down the C key.
    3. Release the button when the Apple logo appears and wait for loading to complete.
    4. After the installer loads, choose your language and click on the continue button. When the menu bar appears select utility drive in the Utilities menu.  After disk utility charges select the entry out-bumpy in the list aside (mfgr. size ID and disc drive.)  In the right side of the disk utility window, click the Partition tab.  Set the number of sheets to (1) on the menu drop down. Click the Options button and select GUID, click on OK, the value of the Mac OS Extended journaled format type. Finally, click on the apply button.
    5. Once the format is complete, quit disk utility.  Continue with the installation of OS X and follow the directions.
    6. Once installation is complete, the computer will restart in the installation wizard. After completing the Setup Wizard, you will use a new installation of Snow Leopard. Open the software update and install updates recommended.
    7. If you plan to sell or to give to your remote computer, then proceed as follows: once you reformat your hard disk and reinstall Snow Leopard, the computer restarts with a welcome screen. To leave the Mac in a State OOTB (Out Of The Box), do not continue with the Setup program. Instead, press the command and Q keys to stop the computer. The installation wizard will guide you the new owner through the installation procedure, after that it turns on the computer.
    8. Download and install Mac OS X 10.6.8 v1.1 updated Combo. If necessary. It is not necessary if you are selling or giving your computer away.

    [Permission to use any part of the foregoing has been granted by khati, exclusively, to theratter.]

    You can now switch to any version of Mac OS X that you have already downloaded from the App Store. They must appear on the purchase page of the App Store when you connect using the Apple ID used when downloading of their origin. Your model is the first of its kind to run Lion or later. You can stay with Snow Leopard for best performance. However, the model is quite able to run than el Capitan provided that it has enough memory installed - at least 4 GB.

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    Hello

    Try please solve it as described on this Microsoft article http://support.microsoft.com/?kbid=293078

    Generally, the display driver installation should help. As you know sometimes it is not easy to fix this kind of problem and sometimes is much better recovery procedure.

    You can not write about any common problem if you n t know exactly why this happens. If you are recovering the unit it will be working well. A negative influence on the graphic can have some games preinstalled or many other additional software.

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    pls help me...
    original title: windows xp installation

    If you are planning on running a Windows Anytime Upgrade to Windows 7 Ultimate, then it would make sense to download and install the FREE Windows XP Mode.

  • blue screen / memory_management/Restart - whenever I connect the external hard drive

    whenever I plug in the external that I get a screen blue with the message of management of the memory/500 GB, Ive done scan memory which was ok, booted in safe mode it still did. I did the sfc/scannow and message were found corrupted files that he couldn't fix it, tried to disable the antivirus then plug externally and he always has. It's windows 8 on a touchscreen ASUS all-in-one, is only 6 months and after 3 weeks, I was stuck with the constant blue screen at startup until it my tech had to wipe and reinstall windows and that day he said it was an update that he didn't like. When I plug a 32 GB key it works fine, but with external it restarts every time and on startup it sends a report to microsoft, so why microsoft will not send me a fix... Help

    whenever I plug in the external that I get a screen blue with the message of management of the memory/500 GB, Ive done scan memory which was ok, booted in safe mode it still did. I did the sfc/scannow and message were found corrupted files that he couldn't fix it, tried to disable the antivirus then plug externally and he always has. It's windows 8 on a touchscreen ASUS all-in-one, is only 6 months and after 3 weeks, I was stuck with the constant blue screen at startup until it my tech had to wipe and reinstall windows and that day he said it was an update that he didn't like. When I plug a 32 GB key it works fine, but with external it restarts every time and on startup it sends a report to microsoft, so why microsoft will not send me a fix... Help

    Thanx got fixed, had a boyfriend of work come and he found the answer on page 3, it was the USB driver had to be removed and reinstalled with the right pair on the ASUS website

  • can I download El Capitan on an external drive and use from this drive

    I am running OS 10.5.8 on mac pro intel. Need to run all the software business. I know it's old, but it works.

    So can I download El Capitan OS on an external hard drive and use El Capitan who?

    Only if your Mac is compatible with El Capitan and you install Snow Leopard to access the Mac App Store. You will be able to choose to install to it then the implementation of the facility.

    (140438)

  • is it possible to transfer MP3 files to the flash drive USB to hard drive SYNC?

    See the title.

    Hi Tom,

    Yes, it is possible to transfer MP3 files, a flash drive USB external hard disk by connecting the two devices to your computer using two USB ports, and when the two are detected, you can copy the contents of files MP3, flash USB drive files and paste it on your external hard drive.

    For reference:

    Transfer files and settings from another PC:

    http://Windows.Microsoft.com/en-in/Windows-8/transfer-files-settings-another-PC

    Transferring files and settings: frequently asked questions:

    http://Windows.Microsoft.com/en-in/Windows-8/transfer-files-settings-another-PC

    Moving and copying files by drag-and - drop:

    http://Windows.Microsoft.com/en-in/Windows7/move-and-copy-files-using-drag-and-drop

    If you need further assistance on this topic, let know us and we will be happy to help you.

  • downgrade from capitan to the mavericks

    Hello

    I now have OS x capitan on my macbook pro and I want to downgrade to Maverick, but I have some problems with this problem

    I download the mavierick and I put it on my external hard drive.

    When I restart my mac and boot from the external drive, it's freezing on the loading icon and I'm waiting it exceeds 1 hour, but it still the same problem.

    Note: I have download two copies of maverick, but I have the same error

    Thank you

    Your Mac came with the Mavericks, or earlier? You cannot start a version of Mac OS x earlier than what it came with.

  • After the upgrade to El Capitan cannot insert CD/DVD in external drive

    Hello

    I have a Macbook Pro (mid-2014 retina) and I have this problem since I upgraded to OS El Capitan. Now I have the last 10.11.5.

    I can't insert a CD/DVD in the external DVD drive. It gets stuck at the end when it is like 80% already.

    I searched on the web before and there was a workaround solution that you put the CD in and reboot and it would work and it is indeed, but it's a pain that every time I work on the Macbook and in the middle of something and I want to insert a CD that I have to close everything and restart to get the disc inside!

    Once I do that, it works fine and I can eject and insert it again normally, but the first time I have to restart first, and since it's an external drive, I have connected it all the time, so whenever I connect it, I have to redo this same process.

    I was hoping with the last update that this problem could have been resolved for me obviously it's a software problem because it came with the upgrade to El Capitan, I've improved in later, but still problem is there. I hope that someone would have reached a permanent solution for this and I would be really grateful to know it.

    Thank you!

    Sally

    The external drive does the same thing on a different computer, be it mac or windows? Also is what brand?

  • When I reinstall El Capitan on a new drive, should I install device drivers?

    I am completely new to the Mac, after using Windows all my life.

    My question is; I'll put a new, larger internal SSD in my MacBook Pro and of course re - install El Capitan.  I need to download and install device drivers, as you do with Windows machines?

    In addition, my MacBook Pro is 8 years old and the battery is endangered.  How a new battery will be?

    N ° OS X contains everything that is needed. You have a project in front of you. But see the following:

    How to replace or upgrade a drive in a laptop

    Step 1: Fix the hard disk and permissions

    Boot from an OS X install disc

    1. Insert the OS X installation disc into the optical drive.

    2 restart the computer.

    3. immediately after the ring, press and hold the C"" key.

    4 release the button when the spinning gear under the Apple grey dark

    logo appears.

    5. wait for the installer to finish loading.

    Boot from a recovery HD:

    1. reboot the computer.

    2. immediately after the ring, press and hold the

    'ORDER' and the set of keys 'R '.

    3. release the keys when appears the utilities Menu.

    After the installer loads, choose your language and click on the button continue. When the menu bar appears, select disk utility from the menu of the Installer (the menu utilities for Tiger, Leopard or Snow Leopard).

    For Lion or later select disk utility in the main Menu of public services.

    After disk utility loads select your entry from hard drive (to mfgr. ID and Player size) of the list on the left.  In the disk utility status area, you will see an entry for the S.M.A.R.T. status of the hard drive.  If it does not say "Verified" then the hard drive is faulty or has failed. (State SMART is not reported on external drives Firewire or USB). If the drive is "verified", then select your OS X volume in the list on the left (subentries under the entry for the road), click the first aid tab, then click the repair disk button. If THE reports any errors that have been corrected, and then run repair disk again until no errors are reported. If no errors are reported, click repair permissions. Wait until the operation is complete, then exit FROM and return to the installer.

    If Disk utility reports errors, that it can not solve, then Disk Warrior or Tech Tool Pro to repair the drive. If you do not have one of them or none of them can fix the disc, then you will need to reformat the hard drive and reinstall the OS X.

    Second stage: Remove the old drive and install the new drive.  Place of the old drive in an external USB enclosure.  You can buy one at OWC , which is also a good supplier for the readers.

    Step 3: boot from the external drive.  Restart the computer and after the buzzer, press on and hold down the OPTION key until the Boot Manager appears.  Select the icon of the HD to the external hard drive recovery, and then click the arrow pointing down.

    Fourth step: new preparation of the hard drive

    1. open utility disk in the utility Main Menu, then click on the continue button.

    2. the disk utility charges and then select your new hard drive (it's the entry with the)

    MFGR. ID and size) from the list on the left. Note the SMART status of

    the reader in the status area of THE.  If it says not "verified" and then the player

    is failing or has failed and will need replacement.  Otherwise, click on the

    Tab in the main window of the disk utility partition .

    3. in the title of the Volume entitled plan defined the number of partitions from

    the drop to one. Set the type of Mac OS Extended format

    (Journaled). Click the Options button, set the partition scheme

    GUID then click on the OK button. Click on the Partition/apply button and

    Wait until the process is completed.

    4. Select the volume you just created (it's the auxiliary input under the)

    entry by car) from the list on the left. Click on the Erase tab in THE MAIN

    window.

    5. set the type of format Mac OS extended (journaled). Click on the

    The button options , check the box for zero data and click OK to

    return to the window to erase it.

    6. click on the delete button. The formatting process can take up to several

    hours depending on the size of the disk.

    Fifth step: clone the old disk to the new disk

    1. Select the destination volume in the list on the left.

    2. click on the tab restore in the main window of THE.

    3. check the box labeled destination Erase.

    4. Select the destination volume in the left list and drag it to the

    Destination entry field.

    5. Select the volume of the source of the list on the left and drag it to the

    Input source field.

    7. check you correctly, then click on the restore button.

    Destination means the new internal drive. Source means the old external drive.

    Step 6: open preferences Startup disk and select the new internal volume.  Click restart.  You should boot from the new drive.  Eject the disk and disconnect it from the computer.

  • Is it possible to extract personal folders from my hard drive and transfer to an external hard drive if Windows does not start?

    Hello, I recently started my Windows XP Dell computer and it should start up normally unless it would run the ChkDsk utility. It would freeze then 68% on stage 1 and goes no further. I called the people of Dell and after trying so many solutions, including safe mode, safe mode with network and CommandPrompt, we ran the diagnosis. The hard drive and memory are fine, no errors. He concluded that it was the operating system and must be restored. However, I have important files, I need to extract from my hard drive and he recommended me an external hard drive. I bought it, but now I'm not sure how to extract my files from my drive hard if Windows can not even boot the desktop computer. Is it possible to extract these files without the use of the desktop computer?

    And you've burned the .iso image, and not as data? If Yes, then you have created a bootable CD. Put it in your optical drive and restart the computer. You may need to change the boot order in your BIOS. With some machines, you can get a temporary startup command menu by pressing a function such as F12 at startup. Other computers require that you enter setup and change the boot order in the optical drive first of all from there. When you start your computer it will be information about which key press to enter the BIOS (Setup) or give you the temporary boot order.

    After you changed the boot order to boot first from the CD and rebooted the computer, Knoppix will boot. Have your external hard drive connected to the computer before you start doing this. After Knoppix is finished booting, you will be in his office. It will be very similar to Windows. There are icons on the desktop for your internal hard drive and the external hard drive. Copy files from the internal to the external drive as you want. Review what I wrote about the use of Knoppix in my previous answer. MS - MVP - Elephant Boy computers - don't panic!

  • Problems with El Capitan w / WD external hard drive

    I have trouble with El Capitan find the external hard drive. I put a couple of external hard drive in both my mac mini.

    OS X El Capitan

    10.11.3 version

    Mac mini (late 2014)

    Processor: 2.6 GHz Cose i5

    My external 2 TB USB drive working

    My not-so-working external WD My Book

    • FireWire 800
    • FireWire 400
    • USB 2.0

    It was before mini mac OS El Capitan. But lately, my mac mini showed that the WD My Book was read-only. Then, the WD hard drive disappeared from my finder! Same with Disk Doctor app.

    What format is the external drive in?

    If you have used NTFS before OS X El Capitan your third-party NTFS software will need to be updated.  OS X can natively read NTFS volumes, but the third party software is necessary to allow write access.

    If your player is in HFS +, then it could be a permissions problem.

  • Possible to restart some background process?

    I recently had a newbie-accident: typed "stop immediately" on production instead of test db db. After a few seconds, I realized my mistake and abandoned shutdown.
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    Stop background QMNC process
    Stop background CJQ0 process
    Stop background MMNL process
    MMON background process stop

    Database runs normally for a few days, except that none of the planned work has begun.

    Is it possible to restart the background process without restarting the database?

    No, closing databases until the end and start it.

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