How do I reinstall Lion in my MacBook Air 2011?

I'm am trying to reinstall my OS in my 2011 MacBook Air. I was trying to install Mountain Lion but it keeps saying my start up disk is full even though I deleted just about everything I can think of as well as emptying the trash. After all this it still says I only have 2.54 GB free which is not enough to install Mountain Lion. I deleted all my photos, I removed my email and there are no movies or music in my iTunes. Help anybody?? Thanks..

Hold down the "Option" key while restarting your machine. Keep it held down till you see the Apple logo. You should see an option to select a recovery disk to install Lion from.
Otherwise, you can hold down "Command" and "R", keep holding both till the restart completes.

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How can I reinstall EFI firmware on Macbook air 2011?

There are only EFI firmware update for Macbook air 2011.
I wonder if there are EFI firmware restoration usb/CD/downloads for Air? Why there are only restoration CDs for Macbook pro?

Hi Sberman,
I searched in that place.
http://support.apple.com/kb/DL1320
This is firmware restoration for pro. It restores the EFI firmware. It is about 30 MB.
http://support.apple.com/kb/DL1497
This is firmware update for air. It is about 4 MB.
I wonder if there is firmware restoration for air.

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I assume you have Lion or Mountain Lion installed:
Reinstalling Lion/Mountain 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/Mountain Lion: Select Reinstall Lion/Mountain Lion and click on the Continue button.
Note: You will need an active Internet connection. I suggest using Ethernet if possible because it is three times faster than wireless.
If you have Snow Leopard:
Reinstall OS X without erasing the drive
Do the following:
1. Repair the Hard Drive and Permissions
Boot from your Snow Leopard Installer disc. After the installer loads select your language and click on the Continue button. When the menu bar appears select Disk Utility from the Utilities menu. 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 installer.
If DU reports errors it cannot fix, then you will need Disk Warrior and/or Tech Tool Pro to repair the drive. If you don't have either of them or if neither of them can fix the drive, then you will need to reformat the drive and reinstall OS X.
2. Reinstall Snow Leopard
If the drive is OK then quit DU and return to the installer. Proceed with reinstalling OS X. Note that the Snow Leopard installer will not erase your drive or disturb your files. After installing a fresh copy of OS X the installer will move your Home folder, third-party applications, support items, and network preferences into the newly installed system.
Download and install the Combo Updater for the version you prefer from support.apple.com/downloads/.

HT1338 I failed to re-install Mac OSX after I removed it while removing my personal info. I forgot my Apple ID & password at the time. I have now recovered them with my windows type spare computer. How can I reinstall OSX on my MacBook Air?

I failed to re-install the OSX on my MacBook Air after erasing my personal information in preparation to sell the computer. Reason: I forgot my Apple ID and password. I have recovered my ID and password on my wondows computer. There is no software on my MacBook Air right now. How do I re-install OSX?

Install Mavericks, Lion/Mountain Lion Using Internet Recovery
Be sure you backup your files to an external drive or second internal drive because the following procedure will remove everything from the hard drive.
Boot to the Internet Recovery HD:
Restart the computer and after the chime press and hold down the COMMAND-OPTION- R keys until a globe appears on the screen. Wait patiently - 15-20 minutes - until the Recovery main menu appears.
Partition and Format the hard drive:
1. Select Disk Utility from the main menu and click on the Continue button.
2. After DU loads select your newly installed hard drive (this is the entry with the mfgr.'s ID and size) from the left side list. Click on the Partition tab in the DU main window.
3. Under the Volume Scheme heading set the number of partitions from the drop down menu to one. Click on the Options button, set the partition scheme to GUID then click on the OK button. Set the format type to Mac OS Extended (Journaled.) Click on the Partition button and wait until the process has completed. Quit DU and return to the main menu.
Reinstall Lion/Mountain Lion. Mavericks: Select Reinstall Lion/Mountain Lion, Mavericks and click on the Install button. Be sure to select the correct drive to use if you have more than one.
Note: You will need an active Internet connection. I suggest using Ethernet
if possible because it is three times faster than wireless.
This will install the OS originally installed on your computer. If you plan to sell or give away the computer, then do not upgrade it or the purchaser will not be able to use it.

How to reinstall iLife '11 on MacBook Air 2011s

My Photostream does not work with iPhoto '11, so i want to reinstall it.
But i don't know how i get iLife back on my Mac, after i deleted it from the program folder.
Any suggestions?

If you Purchased it from the Apps Store then you can redownload it...
Download Past Purchases
http://support.apple.com/kb/HT2519
Log into iTunes using the account the Purchase was made with... Click on Buy... and a notice will come up saying you already have it... do you wish to download it again... Click Yes...

Trying to reinstall lion os on MacBook

I am trying to reinstall lion on my MacBook air, but it just says its trying to verify details with apple but nothing else happens?
When I boot up the MacBook, a utilities window opens with 4 options to choose from. I select reinstall mac os x and then on the next screen, it says to set up the installation of mac os x 10.7 click continue, so I do that, it then says to download my computers eligibility will be verified by apple, I click continue and it says loading installation information... But doesn't go any further, the wheel keeps turning as if it is doing something, but nothing else happens. Any ideas?

update:
1. Called Support... and it didnt really help. basic troubleshooting etc.
2. continued my testing - restart CMD + R and connect to my office wifi (yesterday was at home) and start downloading the installer. after a while, got the installation popup prompting me to install, click next, then got finally to download the Lion source. However, my connection in office is so slow it was taking 7hours to get the whole thing.
3. I thought that the guy at the end of the line did something miraculous... I then disconnected and went back home trying the exact same steps... and I was impossible to get it work !!
This is really amazing, the worst piece of crap I have ever seen. Brand new macbook air shipped with Lion installed and I can't get to reinstall the whole system ?!? This is really ridiculous !
Another part is that I tried to install Snow Leopard from the USB key (provided with earlier mba 11") and it can't even get to the installer... that's another point...
Apple, can you get a fix?

Offline Installer for Macbook Air 2011 & Mac Mini 2011

I understand that Macbook Air 2011 and Mac Mini 2011 uses a pre-installed OS X Lion with a different build number (11A2063).
However, it seems that with 10.7.2 , there is only 1 build number: 11C74 , as per http://support.apple.com/kb/HT1633 , does it mean that 10.7.2 is a unified version of the OS X Lion for all mac products?
Therefore, would it be possible to purchase & download the Lion Installer from Mac App Store , extract the InstallESD.dmg and use it as a offline Lion installer for Macbook Air 2011 / Mac mini 2011?
P.S. I am seeking an offline solution because the recovery partition has been damaged, the internet recovery doesn't work (error 3403F & 4403F), and the recovery disk I have created with http://support.apple.com/kb/dl1433 showed an error "could not find installation information for this machine". And the Apple Authorized Service Providers are charging $150 for a simple restoration of the recovery partition.

"does it mean that 10.7.2 is a unified version of the OS X Lion for all mac products?"
Yes.
"Therefore, would it be possible to purchase & download the Lion Installer from Mac App Store , extract the InstallESD.dmg and use it as a offline Lion installer for Macbook Air 2011 / Mac mini 2011?"
I don't believe there is a 10.7.2 stand alone installer. 10.7.2 is an update file.

I installed lion on my MB '08. Since then, the machine stocks form time to time. sometimes three or four times a day. Due Lion is an app as well I would like to uninstall it to try how the machine works. How can I uninstall Lion from my MacBook '08 ?

I installed lion on my MB '08. Since then, the machine stocks form time to time. sometimes three or four times a day. Due Lion is an app as well I would like to uninstall it to try how the machine works. How can I uninstall Lion from my MacBook '08 ?

Restore the backup you took before the upgrade.
Allan

How can I reinstall Lion after putting in a new hard drive?

Hi, I recently had a new hard drive put on my imac27. When I rebooted it I noticed that the Apple store had set it back to Snow Leapard. How can I reinstall Lion without making a new purchase, Thanks.

Log into the Mac App Store with your original Apple ID. The redownload is free.
(68116)

How is it possible to download Lion on a Macbook Air. I have the answer that "it can't be downloaded on this computer". I bought it with my previous MacBook and I would like to make DVD of it. Thank you.

How is it possible to download Lion on a Macbook Air. I have the answer that "it can't be downloaded on this computer". I bought it with my previous MacBook and I would like to make DVD of it. Thank you.

Check that your MBA meets the System Requirements for Lion..
See Here under General Requirements...
http://support.apple.com/kb/SP629

How do I reinstall Lion when I bought it online and I dont have it

Hi how can I reinstall Lion on my computer w/o installing first SL and then Lion.
I just want to install Lion.
The other problem is that I bought it online and I dont have the dmg.
Cheers

Boot up holding command-r keys into Lion Recovery Volume.
The screen should give you these choices...
Restore from TM backup
Reinstall Mac OS X
Get help online
Disk Utility

How can I reinstall Lion on a replacement HD?

The HD on my Mac Mini [Mid 2009] seemed to be dying. Disk Utility confirmed that the Drive was on its way out. So, I did a complete backup to TM, and since the Drive still seemed to be operating, I made a clone of it using Carbon Copy Cloner.
I had the Drive replaced, and have spent the last two evenings searching for the answer on how to put everything back on my Drive. I was thinking I needed to reinstall Lion and THEN restore the files from either TM or Carbon Copy Cloner. The trouble is that the Mini won't boot without Lion [or a predecessor] already installed.
I THINK I can boot from my external drive -- the one to which I saved the Carbon Copy Cloner backup -- but I'm not sure. Before trying that, is there a way to reinstall Lion on the Mini? [Without Snow Leopard on it, I don't have the App Store, so I can't simply D/L Lion again from the App Store. I saw Apple's KB article which noted: If you happen to encounter a situation in which you cannot start from the Recovery HD, such as your hard drive stopped responding or you installed a new hard drive without Mac OS X installed, new Mac models introduced after public availability of OS X Lion automatically use the Lion Internet Recovery feature if the Recovery HD (Command-R method above) doesn't work. Lion Internet Recovery lets you start your Mac directly from Apple's Servers. The system runs a quick test of your memory and hard drive to ensure there are no hardware issues.
Since I "happened" to encounter a situation where I cannot start from the Recovery HD -- and I don't have a "new Mac Model," how do I reinstall Lion on my Mini?
Thanks for your help.

Thank you for the response.
That's exactly what I did -- down to the finger crossing. Unfortunately, no joy --despite the season.
Despite several other Macs around the house we apparently don't have a Stand Alone copy of Snow Leopard, which would at least let me re-download Lion. I DID find a boxed Vers. of Leopard, which is how I got the Mini to boot in the first place.
The Mini will boot off of the external, and all my files appear to be there and working. But despite having copied it all over to the Mini, it won't boot -- it just hangs at the Gray Boot-up screen.
This sure would be a lot easier if I hadn't bought Lion off of the App store. Without discs to work from I'm having a hard time recovering from a dead HD.
Thank you, again for the help. Merry Christmas!

How can I get sound on my MacBook Air after installation of Lion? "No output devices found" on the system preferences pane of my MacBook Air.

Since installing Lion on my MacBook Air, I get no sound and ITunes playback doesn't move. The Sound Preference pane states "No output devices found." The Bluetooth connection to a WiFi speaker works, so it must be a software problem. Anyone?

For sound, try the audio output port and connecting to the RCA audio input ports on your Pioneer receiver. Use something like this:
http://eshop.macsales.com/item/OWC/PODCONNECTOR/
Ciao.

Macbook air 2011 reinstall problem

I'm really tired
Actually I have a Macbook air 2011 /4g/ 11" , I format my hdd from disk utility and now I want to access to startup menu to reinstall it, I try that with holding option key and it just show me the internet recovery, my internet speed is very low, after about 8 hours it's show me the start up menu finally and ask me to reinstall the lion 1.7 so on that time because of some issues I just turn my macbook off because I think everything downloaded,
now, again when i turn it on for continue the installing process it's show me again the internet recovery and want to download from internet again
how can i access to the downloaded data and continue my work
command+r and option key again straight me on internet recovery
please help me

OS X Recovery requries a broadband connection as noted > OS X Recovery
There's no need to hold down the Option key to restore OS X.
Hold down the Command + R keys.
If your download speeds are less than 10Mbps, you may not be able to restore your Mac using OS X Recovery.
If you can, take your Mac to an Apple Store > Apple - Find Locations
In most cases, they will restore OS X for free for you.

MacBook Air 2011, running Lion 10.7.2, and Safari won't load any pages. Firefox loads everything just fine. What's going on?

I have a MacBook Air 2011, running Lion 10.7.2, and Safari won't load any pages. Firefox loads everything just fine. What's going on?

d Pacifist to reinstall both the Safari
application and the WebKit framework
was that before the 10.4.6 combo was applied?
Nope, I tried the Pacifist route after applying the combo update.
It does sound as if webkit is busted at the moment.
What version of osx is on your install disks?
Not sure, I'll have to check them.
I'd like to avoid a archive & install, but I'm beginning to think it's my only remaining option.

How do I reinstall Lion in my MacBook Air 2011?

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