If I create an external drive with Yosemite that I can boot from, will I also be able to boot from my internal drive still?

So I am still on Mountain Lion and I haven't upgraded because I have always been worried that Logic Pro, my Plug ins, and my Hardware wouldn't work right on the new OSX. I am now becoming interested in upgrading since Logic has a new update that I cant use.
My plan is to install Yosemite on an external drive that has thunderbolt connection so that I can boot from that and give everything a trial run. Is this something that actually works? If I do this, and things arent compatible on Yosemite, will I be able to boot from my internal and be back on Mountain Lion as I am now?
Thanks!

External drive must be partitioned and formatted for Mac OS Extended, Journaled.
Clone Yosemite, Mavericks, Lion/Mountain Lion using Restore Option of Disk Utility
Boot to the Recovery HD:
Restart the computer and after the chime press and hold down the COMMAND and R keys until the menu screen appears. Alternatively, restart the computer and after the chime press and hold down the OPTION key until the boot manager screen appears. Select the Recovery HD and click on the downward pointing arrow button.
     1. Select Disk Utility from the main menu then press the Continue
         button.
     2. Select the destination volume from the left side list.
     3. Click on the Restore tab in the DU main window.
     4. Select the destination volume from the left side list and drag it
         to the Destination entry field.
     5. Select the source volume from the left side list and drag it to
         the Source entry field.
     6. Double-check you got it right, then click on the Restore button.
Destination means the external drive. Source means the internal startup drive.

Similar Messages

  • I made a bootable disc on an external hard drive, with Yosemite on it.  I am running Snow Leopard on my iMac.  How can I open the Yosemite disc from the desktop on my iMac?  Does the external hard drive need to be connected to my iMac by firewire to

    I made a bootable disc on an external hard drive, with Yosemite on it.  I am running Snow Leopard on my iMac.  How can I open the Yosemite disc from the desktop on my iMac?  Does the external hard drive need to be connected to my iMac by firewire to do that?

    kahjot wrote:
    Snow Leopard's Startup Disk pref can’t see Yosemite volumes. So the only way to switch from Snow Leopard to Yosemite is to do what Niel mentioned. Doesn't matter whether it's connected by USB or Firewire, although performance via FW would be faster.
    Are you saying that Yos/10.10, as a volume located in a mounted external drive won't appear as an option in Snow Leopard's Startup Disc, in Sys Prefs? I've never heard this one before. AFAIK any mounted volume, regardless of OS, should appear there. I would think that, if it appears in the Boot Picker/Startup Manager it would also appear and could be booted to from Snow's Startup Disk. I can't test this myself, since I don't have Yos. Is what you are saying documented somewhere?

  • Had to wipe my drive so I could do a clean install of snow leopard Now I look every where on how to move bookmarks, address book and I cal settings.  I have them back up on a external drive with Time machine but can not move, copy or restore my old sett d

    Had to wipe my drive so I could do a clean install of snow leopard.   Now I have look every where on how to move bookmarks, address book and I cal settings.  I have them back up on a external drive with Time machine but can not move, copy or restore my old settings.  The instructions I have found or no help or needs more clarafication on what to do.

    Use migration assistant to move your files.  http://support.apple.com/kb/HT4889

  • I have just upgraded to Mavericks and have been using Time Machine on an external disk with Snow Leopard.  Can I continue to backup with Time Machine on the same external disk or do I need a new disk since the operating system has changed?

    I have just upgraded to Mavericks and have been using Time Machine on an external disk with Snow Leopard.  Can I continue to backup with Time Machine on the same external disk or do I need a new disk since the operating system has changed?

    Hi there,
    I found that Time Machine in Mavericks will sort it all out for you. You shouldn't need to buy another backup drive, unless you have insufficient space left and can't afford to delete whats on there. It should just work fine.

  • I have a hard disk drive with data that i want to back up onto another hard disk drive. I tried just copy and it won't let me paste it in the new drive. I have also tried to drag the files across and they won't go across. Does anyone know how to do this?

    I have an external hard disk drive with data that I want to back up onto another extrnal hard disk drive. I have tried to copy and paste but this wont give me a paste option. I have also tried to click and drag but it wont let me either. I have reformatted the external hard drive to accept both mac and pc files and this did not make any difference. Can anyone help me with this?

    How did you reformat the drive? If you formatted it as NTFS, your Mac will not be able to write files to it unless you use a small application such as Paragon's.
    Please reply as to how you formatted the drive.
    Clinton

  • HT4889 Replacing System hard drive with a new one. How to get everything over to the new boot drive?

    Replacing System hard drive with a new one. How to get everything over to the new boot drive? Should I use Carbon Copy or does apple have a better untility to do this?
    I can't get my current system drive (OSX 10.8.3) to start on the first try. I always have to shut down and restart again to finally see the Apple logo.
    Have used disc utility to repair the disc and permissions several times and that works. The next time I boot up, it works fine and I get the apple logo, but then the second time I boot up, it's back to the blank screen again and it only boots after the second try.  I have tried this repair three different times now always with the same result. Works right the first try (after the repair) then from the second time on it doesn't work. I just get the white screen until I reboot a second time.
    Thinking I should change drives but what's the easist and best way to move everything over to the new drive so it will boot correctly with all my data on it. This is the system drive for a Pro Tools 10HD setup. MacPro 3,1 with 16 gigs ram and OSX10.8.3 on it.
    Thanks for any help!

    If you have a time machine back up of your current drive you can do this
    Shut down your computer, install the new drive. While the computer is off plug in the external hard drive that you have your time machine back up on. Hold Option key while the computer turnes on, let go of the option key once you get a grey screen. Shortly after you'll see  a list of bootable drives, select the one that has your time machine back up on it and boot into that drive.
    From there go into disk utility, format your new drive too, osx extended journaled ( I think, double check that, its been awhile since ive had to do this), hit format
    Exit disk utility and then you can use time machine to copy all your exisit data to the new hhd and then your pretty much done.
    There is also a program called Carbon Cloner that will do esentially the same thing however I've never uesed it.

  • Pictures distorted on new Mac mini with Yosemite that were clear on older Mac mini

    Pictures are distorted on new Mac mini with Yosemite that were clear on older Mac mini.  How do i adjust the resolution?

    Hi there lapineassembly,
    I understand that you wish to adjust the resolution of your display on your new Mac mini. Here is an article for you that can explain this issue:
    OS X Yosemite: Adjust your display’s resolution
    http://support.apple.com/kb/PH19043
    If this does not resolve the issue with the image you are asking about, would you mind providing some more information about the nature of the issue? Thanks for using the Apple Support Communities!
    Cheers,
    Braden

  • I have an external HD with PDFs and these can be opened in XP and Windows 8 but not Windows 7.

    I have an external HD with PDFs that can be opened with Windows XP and 8 but not Windows 7. Different version of Adobe reader and Pro on the Windows 7 systems does not make a difference.

    What Reader version you have on Windows 7?
    Can you open such a file with Notepad, then copy and paste the first few lines here in the forum?

  • Wants to use my Time capsule hard drive with Plogoplug but I can't... Any Idea on how to...?

    Wants to use my Time capsule hard drive with Plogoplug but I can't... Any Idea on how to...?

    If the TC is not the main router just bridge it.
    Have you tried it with the TC bridged??
    You need to describe the full network because we have no idea how all this is setup.

  • I have to create an interactive form with java. How can i do it?

    I have to create an application that allows to create an interactive form like the option "Create Form" on google docs!
    What do you suggest me to create it?
    1) I think that I can use a DB to store the structure and then I can restore it with particular queries.
    Thank you for answers, I hope you can help me
    Best Regards,
    Silvio

    Savio85 wrote:
    Ah ok, I'm sorry.
    I also can use swing.
    For "requirements", I wrote an example to show a sample of "Interactive Form" (Google Doc -> Create Form).
    I'm sorry for my bad requirement,
    Best Regard
    Silvio
    Edited by: Savio85 on Jun 10, 2010 4:07 AMSo you expect people to sign up to Google so that they can see Google docs? Why should anyone make any effort to help you if you make this little effort to create any sort of problem description?
    Anyway, if you want to create an "interactive form" using Swing, there is only one thing to do: learn the Swing API. Lucky for you there is a great online resource for that:
    [the swing tutorial|http://java.sun.com/docs/books/tutorial/uiswing/]
    Good luck!

  • Is there a way to reduce the size between the lines in when creating a form in FormsCentral so that you can fit more lines on a page?

    Is there a way to reduce the size between the lines in when creating a form in FormsCentral so that you can fit more lines on a page?

    In the Folders Tab, right click on  folder  then click Reveal in Explorer. This will open an Explorer window with the folder selected.  In Explorer you can right click > Properties or navigate to whatever you want to measure.

  • I have problem with account that i can't make update or buy from app store There is massage appear in my payment page that i must contact with i tunes support to complete this transaction Please help me to fixe this problem as soon possible Hany hassan 00

    I have problem with account that i can't make update or buy from app store
    There is massage appear in my payment page that i must contact with i tunes support to complete this transaction
    Please help me to fixe this problem as soon possible
    Hany hassan
    0096597617317
    0096596677186
    Thank you

    You need to Contact iTunes Support...
    Apple  Support  iTunes Store  Contact Us

  • There is a particularly intrusive BMW app advert that pops up when playing Words with Friends that I can't get rid of.  There doesn't appear to be an exit option (most unethical). Any suggestions on how to get rid of the advert out ther?

    There is a particularly intrusive BMW app advert that pops up when playing Words with Friends that I can't get rid of.  There is no exit option (most unethical).  Any solutions for getting rid of the advert out ther?

    Do a malware check with several malware scanning programs on the Windows computer.
    Please scan with all programs because each program detects different malware.
    All these programs have free versions.
    Make sure that you update each program to get the latest version of their databases before doing a scan.
    *Malwarebytes' Anti-Malware:<br>http://www.malwarebytes.org/mbam.php
    *AdwCleaner:<br>http://www.bleepingcomputer.com/download/adwcleaner/<br>http://www.softpedia.com/get/Antivirus/Removal-Tools/AdwCleaner.shtml
    *SuperAntispyware:<br>http://www.superantispyware.com/
    *Microsoft Safety Scanner:<br>http://www.microsoft.com/security/scanner/en-us/default.aspx
    *Windows Defender:<br>http://windows.microsoft.com/en-us/windows/using-defender
    *Spybot Search & Destroy:<br>http://www.safer-networking.org/en/index.html
    *Kasperky Free Security Scan:<br>http://www.kaspersky.com/security-scan
    You can also do a check for a rootkit infection with TDSSKiller.
    *Anti-rootkit utility TDSSKiller:<br>http://support.kaspersky.com/5350?el=88446
    See also:
    *"Spyware on Windows": http://kb.mozillazine.org/Popups_not_blocked

  • I'm having trouble with using Calculated-User Can Override, it will not honor my overide

    I'm having trouble with using Calculated-User Can Override, it will not honor my overide.  I'm using LiveCycle Designer ES v.8.2

    Reset the device:
    Press and hold the Sleep/Wake button and the Home button together for at least ten seconds, until the Apple logo appears.
    If that doesn't help, tap Settings > General > Reset > Reset All Settings
    No data is lost due to a reset.

  • Why does my iPad hang when writing an email?  When I'm done with the email, I can't send it out and have to re-boot the iPad.

    Why does my iPad hang when writing an email?  When I'm done with the email, I can't send it out and have to re-boot the iPad. This happens if the time to compose email exceeds 10 to 15 minutes.

    Shut down all programs that are running in the background.
    1. Double-click the Home button to see Apps in background
    2. Hold the Apps down for a second or two until you see the minus sign
    3. Tap the minus sign to close program
    4. Reset iPad. Hold the Sleep and Home button down for about 10 second until you see the Apple logo
    Suggest you perform Step 1 to 3 at the end of every day.

Maybe you are looking for