Erase and reinstall 10.7 Lion

Hi. I have a MBP mid 2009 running on Lion. If I do a erase and reinstall, do I need the snow leopard DVDs during reinstall?

No.
You can reformat (erase) the disk and restore OS X using OS X Recovery
Don't forget to backup all important data before reformatting the disk.

Similar Messages

  • Hi on my macbook i want to Erase and reinstall os x lion i know you have to select Disk Utility it says select start up disk what disk would that be

    hi on my macbook i want to Erase and reinstall os x lion i know you have to select Disk Utility it says select start up disk what disk would that be macintosh HD to erase would someone help us out

    It will be the one on top of the list.  In this example it is BARBAROSSA:
    Ciao.
    The name should be the same as the HDD icon on your desktop, usually Macintosh Hard Drive.
    Message was edited by: OGELTHORPE

  • HT201240 Erased and reinstalled my operating system did i loos my lion ? if so how do i get it back?

    I have erased and reinstalled my operating system in doing so i did not reinstall leopard but did install disc 1 an 2 and Snow Leopard! I had lion also! how do i tell if i have my lion dowm load installed or not and how can i recover my lion?

    Try the following user tip:
    Recovering your iTunes library from your iPod or iOS device

  • What's the best way to erase and reinstall Lion?

    I'm a little confused by the various posts I've read about erasing and reinstaling lion. 
    My MBP is about 4 years old.  I upgraded to lion last summer and it never worked great, but over the last 3-6 months its been dragging.  I want to start fresh.  I've uploaded all of my personal files to a sky drive and then copied all of my extremely irreplaceable photos to two other hard drives.  Now I'm just fuzzy about my next step.
    I've read I need to make a boot disk, or a thumb drive or I can do it right from my system.  I don't care which way or what I need, but I want it fresh with no chance of curroption.
    Thanks for any and all direction.
    Josh

    While we all have MacBooks in this forum most of us don’t run Lion. There's a Lion Support Community where everybody has Lion. You should also post this question there to increase your chances of getting an answer. https://discussions.apple.com/community/mac_os/mac_os_x_v10.7_lion

  • Lion erase and reinstall by the Apple Store

    Ok, I'll admit I'm a recent PC crossover so that qualifies me as a Newbie.  Today I took my MacBook to the apple store for an erase and reinstall due to about 20gb of space was missing on my HD.  My latest backup was done the day before I went back to Apple to reinstall Lion.  After I restored my data from the backup, the address book app and the app store app are both missing.  My address book data is on iCloud so I'm not that concerned about the data but I would like to get the app back on my MacBook.  Any help on how to do this would be greatly appreciated.  Thanks....

    I'm not aware of any easy way to reinstall an OS X application in Lion short of reinstalling Lion. You can do that without erasing the drive again, but there is the time it takes to reinstall.
    I don't suppose you have a copy of the Lion installer saved on your computer or purchased the Apple USB Lion flash drive installer?
    Reinstalling Lion Without Erasing the Drive
    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.
    Repair the Hard Drive and Permissions: Upon startup select Disk Utility from the main menu. Repair the Hard Drive and Permissions as follows.
    When the recovery menu appears select Disk Utility. After DU loads select your hard drive entry (mfgr.'s ID and drive size) from the the left side list.  In the DU 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 failing or failed. (SMART status is not reported on external Firewire or USB drives.) If the drive is "Verified" then select your OS X volume from the list on the left (sub-entry below the drive entry,) click on the First Aid tab, then click on the Repair Disk button. If DU reports any errors that have been fixed, then re-run Repair Disk until no errors are reported. If no errors are reported click on the Repair Permissions button. Wait until the operation completes, then quit DU and return to the main menu.
    Reinstall Lion: Select Reinstall Lion and click on the Continue button.
    Note: You can also re-download the Lion installer by opening the App Store application. Hold down the OPTION key and click on the Purchases icon in the toolbar. You should now see an active Install button to the right of your Lion purchase entry. There are situations in which this will not work. For example, if you are already booted into the Lion you originally purchased with your Apple ID or if an instance of the Lion installer is located anywhere on your computer.

  • Hi!I was restoring my MacBook pro to its factory setting by erasing the disk and reinstalling OS X lion via internet.but it is failing telling me that my network is very slow while I used the best network in the area.How sld I get an OS X lion to my CP?

    Hi!I was restoring my MacBook pro to its factory setting by erasing the disk and reinstalling OS X lion via internet.but it is failing telling me that my network is very slow while I used the best network in my area.How should I get an OS X lion to my CP? Is it possible to get it from another MacBook pro?Or is it possible to recover the erased OS X Lion without or with external disc?
    Thank you

    Hi OGELTHORPE!
    Thank you for your advice but I don't know where i can get it and where to get it. Also I don't know also how to use it.
    Could you please keep on helping me?
    Regards!

  • Erase and reinstall OSX server (Mountain Lion)

    I would like to do an erase and reinstall of my Mac Mini Server (Fall of 2011) that now has Mountain Lion on it.  I have data on the second drive but would like to erase the primary drive and reinstall mountain Lion and mountain Lion server.
    Is this possible, and if so would you point me in right direction for instructions to do this?
    Thank you

    Just hold down Command-R during startup,
    From there use disk utility to erase the primary drive then use the reinstall option to load up a fresh copy.

  • Erasing and reinstalling my mac pro hard drive

    I have an older Mac Pro (2006 I think).
    I want to erase and reinstall the hard drive. Once the disk is clean, is there a way to install OS directly to mountain lion? Or will I have to install from an ealier complete set of physical disks?

    If it shipped with 10.4 and is a 2007 or earlier Mountain Lion is not supported, only up to Lion.
    You download and save the Lion installer first and would need to have 10.6.8 to access the App Store.
    Leave what you have as is, and just install a new system to another of the drive bays.

  • HT1379 I have  lost everything on my mac, a gray screen with a folder and question mark is blinking. i hav another mac that is running slowly, how can I boot and reinstall os x Lion, i do not have the start up disc with me.

    I have  lost everything on my mac, a gray screen with a folder and question mark is blinking. i hav another mac that is running slowly, how can I boot and reinstall os x Lion, i do not have the start up disc with me.

    Welcome to the Apple Support Communities
    Lion uses Recovery to reinstall OS X. Press Command and R keys when your Mac starts, open Disk Utility, erase the drive and reinstall Lion. The other Mac has probably got its hard disk damaged, so take the Mac to an Apple Store

  • Erase and reinstall without start up discs.

    I want to erase and reinstall my MacBook Pro which is 10.6.8 but I can't find my start up discs anywhere. Is there a way I can do this?

    No. To do an erase and install requires a Snow Leopard DVD or a bootable backup on an external drive or another Mac with Firewire ports running Snow Leopard.
    You can purchase Snow Leopard through the Apple Store: Mac OS X 10.6 Snow Leopard - Apple Store (U.S.). The price is $19.99 plus tax. You will be sent physical media by mail after placing your order.
    After you install Snow Leopard you will have to download and install the Mac OS X 10.6.8 Update Combo v1.1 to update Snow Leopard to 10.6.8 and give you access to the App Store. Access to the App Store enables you to download Mountain Lion if your computer meets the requirements.
         Snow Leopard General Requirements
           1. Mac computer with an Intel processor
           2. 1GB of memory
           3. 5GB of available disk space
           4. DVD drive for installation
           5. Some features require a compatible Internet service provider;
               fees may apply.
           6. Some features require Apple’s MobileMe service; fees and
               terms apply.

  • Unable to restore from Time Machine after an erase and reinstall - MacbookPro cannot access my old Time Machine backup volume. Desperate for help please?

    My MacbookPro would not move past the Apple logo and spinning wheel for a number of hours.  After trying the numerous suggestions to solve the issue I eventually opted to erase and reinstall feeling confident my Time Machine backups would come to the rescue.  After a successful erase and reinstall I tried to restore all my data from my TIme Capsule using Command-R during start up and by using the Migration Assistant.  Neither worked and I have received messages to the effect that the backup volumes on my Time Capsule cannot be access because I have entered a wrong password or because the backup volume is damaged.
    When I open my Time Capsule in Finder and click on my sparsebundle I get an eror message saying that the disk image could not be opened and that the resource is temporarily unavailable.
    Desperate for some help and comfort that many years of personal data have not been lost.
    Thank you.
    M

    When I try to Verify option it says Unable to Verify - Resource temporarily unavailable.
    Here is the past of the log screen:
    2013-06-09 15:00:00 -0500: Disk Utility started.
    2013-06-09 15:09:01 -0500: Disk Utility started.
    2013-06-09 15:19:53 -0500: [DUDiskController viewablePartitions] expecting DUDisk, but got nil
    2013-06-09 15:19:53 -0500:
    2013-06-09 15:20:00 -0500: [DUDiskController viewablePartitions] expecting DUDisk, but got nil
    2013-06-09 15:20:00 -0500:
    2013-06-09 15:20:05 -0500: [DUDiskController viewablePartitions] expecting DUDisk, but got nil
    2013-06-09 15:20:05 -0500:
    2013-06-09 15:20:13 -0500: Verifying Image “Macajee’s MacBook Pro”
    2013-06-09 15:20:14 -0500: Unable to verify “Macajee’s MacBook Pro.” (Resource temporarily unavailable)
    2013-06-09 15:20:14 -0500:
    2013-06-09 15:25:21 -0500: Verifying Image “Macajee’s MacBook Pro”
    2013-06-09 15:25:23 -0500: Unable to verify “Macajee’s MacBook Pro.” (Resource temporarily unavailable)
    2013-06-09 15:25:23 -0500:
    2013-06-09 15:25:27 -0500: Attach Image “Macajee’s MacBook Pro”
    2013-06-09 15:25:27 -0500: Initializing…
    2013-06-09 15:25:31 -0500: Attaching…
    2013-06-09 15:25:31 -0500: Finishing…
    2013-06-09 15:25:32 -0500: Unable to attach “Macajee’s MacBook Pro.” (Resource temporarily unavailable)
    2013-06-09 15:25:32 -0500:
    2013-06-09 20:02:06 -0500: Disk Utility started.
    2013-06-09 20:05:22 -0500: Disk Utility started.
    2013-06-09 20:07:11 -0500: Disk Utility started.
    2013-06-09 20:18:34 -0500: [DUDiskController viewablePartitions] expecting DUDisk, but got nil
    2013-06-09 20:18:34 -0500:
    2013-06-09 20:19:34 -0500: [DUDiskController viewablePartitions] expecting DUDisk, but got nil
    2013-06-09 20:19:34 -0500:
    2013-06-09 20:19:36 -0500: [DUDiskController viewablePartitions] expecting DUDisk, but got nil
    2013-06-09 20:19:36 -0500:
    2013-06-09 20:22:29 -0500: [DUDiskController viewablePartitions] expecting DUDisk, but got nil
    2013-06-09 20:22:29 -0500:
    2013-06-09 20:22:33 -0500: [DUDiskController viewablePartitions] expecting DUDisk, but got nil
    2013-06-09 20:22:33 -0500:
    2013-06-09 20:22:45 -0500: Verifying Image “Macajee’s MacBook Pro”
    2013-06-09 20:22:45 -0500: Unable to verify “Macajee’s MacBook Pro.” (Resource temporarily unavailable)
    2013-06-09 20:22:45 -0500:
    2013-06-09 20:34:53 -0500: [DUDiskController viewablePartitions] expecting DUDisk, but got nil
    2013-06-09 20:34:53 -0500:
    2013-06-09 20:34:56 -0500: [DUDiskController viewablePartitions] expecting DUDisk, but got nil
    2013-06-09 20:34:56 -0500:
    2013-06-09 20:38:17 -0500: Verifying Image “Macajee’s MacBook Pro”
    2013-06-09 20:38:17 -0500: Unable to verify “Macajee’s MacBook Pro.” (Resource temporarily unavailable)
    2013-06-09 20:38:17 -0500:
    2013-06-09 20:47:35 -0500: Disk Utility started.
    2013-06-09 20:53:06 -0500: Disk Utility started.
    2013-06-09 20:55:30 -0500: Disk Utility started.
    2013-06-09 20:56:40 -0500: Disk Utility started.
    2013-06-09 21:06:32 -0500: Verifying Image “macajee’s MacBook Pro”
    2013-06-09 21:06:32 -0500: Unable to verify “macajee’s MacBook Pro.” (Resource temporarily unavailable)
    2013-06-09 21:06:32 -0500:
    2013-06-09 21:07:08 -0500: Verifying Image “macajee’s MacBook Pro”
    2013-06-09 21:07:08 -0500: Unable to verify “macajee’s MacBook Pro.” (Resource temporarily unavailable)
    2013-06-09 21:07:08 -0500:

  • Erase and Reinstall - Could not unmount disk?

    Hi there....
    I'm running an iBook G4 with Tiger 10.4.11
    After a freeze and manual power off, I powered up and got stuck at the grey Apple. Tried to start in safe mode - no luck. Started up off the install disk and ran Disk Utility - tells me Disk Could Not Unmount.
    Spoke with Apple rep. - ran fsck in Single User Mode - got "Invalid Node STructure"
    I've accepted that my files are lost - I have a good backup so that's that.
    STarted up and got to Disk Utility again - want to do an Erase and Reinstall. Go to erase HD and am told "Could Not Unmount Disk"
    ....do I have any options??

    Well, take into account I'm at a distance here & just guessing it's the HD, but yes, if it is that & you get it replaced, you should be able to install OSX just fine... and likely be much faster with a new HD in it.
    Here's some hard drives...
    http://tinyurl.com/aa4ae4
    http://www.powerbookmedic.com/Powerbook-iBook-Macbook-Hard-Drive-Upgrades-Pro-Po werbook--iBook-Hard-Drives-p-1-c-517.html
    Ultimately - should I be purchasing a new HD and putting it into this G4 - or look in to buying a new one altogether? ...I'd really rather not right now.
    Depends what you do with it & such, but if it meets your needs it may pay to have it fixed, but checkout the prices at the Apple Store on refurb MacBooks & MacBook Pros to better gauge for yourself.

  • How do I reinstall backed up user folder after erase and reinstall of 10.4?

    I had to erase and reinstall 10.4 on my g4 ibook. Prior to this I backed up my user folder on an external drive. Is there and easy way to get my machine the same as it was before the OS reinstall - library settings, files etc?

    Is it assumed that apple users should have another apple machine and or a spare unused firewire hard-drive for system maintenance?!? Sure, if I were running it for buisness use, I'd have a mirrored drive, break the mirror, and upgrade one half of it, but this is the machine in my bedroom! I've got to say, I've rapidly going back of apple over these update QA issues. The fixes offered by people (and I appreciate the time and effort they put in to help others) so far all seem to involve creating other systems on spare drives, or using target mode from another mac. Come on Apple! You can't seriously expect your home users to have two machines, or a spare drive (personally, any drive I have, I use in something or other! I'd consider it a waste having a drive spare just for system upgrades to my Mac). It's about time Apple posted on this subject. It's unfair to expect your userbase to support your COMERCIAL OS for free so heavily.
    I bought a mini because it was cheap, and I wanted to play with OSX. I bought the next OSX release because I had grown to like OSX. Now I'm rapidly going off it. I don't want to have to buy another device just to make it safe to upgrade.
    Sorry for the Rant. Simon, this isn't meant as a criticism of your response. I just feel that apple should be more proactive here, having another disk is of course a good way to go, however, it takes the old TCO a bit to high for a home/play machine imho.
    Anyone from Apple care to comment? (or will you simply edit out my post... afterall that would be easier than addressing the problem).

  • Rear camera will not focus after updating to 8.1.3.   Any adviceY  Already tried erasing and reinstalling.

    I updated to 8.1.3 and my rear camera will not focus.   I erased and reinstalled and still have the problem.  Any advice?

    Hello jonesrob,
    Thanks for using Apple Support Communities.
    From your post I see that your photos and video taken with the rear camera on your iPhone are not in focus after updating to iOS 8.1.3.  When you restored your iPhone, did you restore from a backup?  If so then I would like you to please restore to the factory settings by following the directions in the article below.
    Use iTunes to restore your iOS device to factory settings - Apple Support
    If you had already restored to the factory settings and the issue persists, then it's time to seek service for your iPhone.
    iPhone Other Repair Options - Apple Support
    Have a good one,
    Alex H.

  • Erase and reinstall help - random shut off

    I've been to diagnose my random shut off of my early '06 iMac Intel. It seems to shut down when I use a lot of memory.
    I've done the AHT, resetting the PRAM, ran TechTools, and DiskWarrior.
    It doesn't happen as frequently, but it still occurs. Shuts down randomly once a week. And I have to wait 10 minutes or more to start up again.
    I saw a some users reinstalled OS X and it helped them.
    SO FINALLY MY QUESTION, , I'M CURRENTLY RUNNING OS X 10.5.8 LEOPARD, BUT MY iMac ORIGINALLY CAME WITH TIGER 10.4.4, WHEN I ERASE AND REINSTALL DO I NEED TO USE THE ORIGINAL TIGER DISKS OR CAN I USE THE NEW LEOPARD?
    Thank you for your help, I tried searching the forums but couldn't find an answer. Greatly appreciated.

    ran Power Fractal and is still running for 15 minutes. Nothing happening. I'm not sure how to use the program. I messed with the colorspeed, i put it to 100. Put the max count to 131072. Zoom factor 10. I even opened up Final Cut Pro and Adobe Photoshop all running at the same time.
    You did great, doesn't seem to be what I suspected.
    I noticed a shut off when free memory is 500 or less.
    Fantastic obsevation, RAM is one of the hardest things to test for, RAM tests can only be trusted if they find a problem, not if they don't... seems OSX is a better RAM tester than any RAM test, that being said...
    Memtest OS X...
    http://www.memtestosx.org/joomla/index.php
    Rember is a freeware GUI for the memtest ...
    http://tech.kateva.org/2005/10/rember-freeware-memory-test-utility.html
    Run a test as long as you can.

Maybe you are looking for