How do I install Mountain Lion on FileVault2 encrypted System disk

So I got a Mountain Lion installation DVD from our system administrator at work to upgrade my 2010 MacBook Pro.
I run the installer from the disk under Lion and it copis stuff to /OS X Install Data and reboots. Now, it just displays the "Lion" passphrase input to unencrypt my disk and then boots into the old Lion install...
If I manually boot from the install CD (pressing Alt or C during boot), it works on the DVD for 15 mins, then starts the installer screen including a progress bar, and bails out with an error! No real information, but since it never asked for the FileVault2 passphrase it cannot access the disk. I can go to terminal and use diskutil to unlockVolume the System disk/partition and it is also automatically booted, but since the installer already stopped I do not seem to get back into the installer.
Is there something fundamentally wrong here?
Can I manually start the second-step installer from the CD-System's Terminal?
Can I run the reboot with directly passing the passphrase to the boot process, including the CD-based boot?
Can I run the installer such that it trys to decrypt the disk and asks me for a passphrase when it needs it?
Hope to find a solution shortly!
Thanks you for any ideas

Open the app store, purchase ML. go to second computer open app store select purchases at the top and click download. This is provided both computers use the same account.
http://www.apple.com/osx/how-to-upgrade/

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Hi, I have a late 2008 iMac with a new hard drive. How do I install Mountain Lion from my bootable USB flash drive.

How do I install Mountain Lion to a new hard drive without having the recovery partition on it.
I have the USB flash drive with software on it but when I switch my Mac on all I have is a white screen & a flashing question mark.
ATB,
Steve.

Did you use LionDiskMaker or DiskMaker X?
Boot the machine with the option key down until you see your bootable USB stick. Select the latter, and reboot.
When the installer boots up, you will first need to choose Utilities and Disk Utility. Select the target HD device name and then the partition tab. Select 1 partition, name it Macintosh HD. Format is Mac OS Extended, and option is GUID. Apply. Exit Disk Utility and return to the installer, which will now show your newly partitioned HD as available for install.
When OS X is installed and all updates applied, press shift+command+U and run disk utility again. Verify/repair permissions and verify the boot disk.

How do I install Mountain Lion on both my iMac Desktop and my wifes MacBook

How do I install Mountain Lion on both my iMac Desktop and my wifes MacBook Pro?

Open the app store, purchase ML. go to second computer open app store select purchases at the top and click download. This is provided both computers use the same account.
http://www.apple.com/osx/how-to-upgrade/

How do I install Mountain Lion on a thumb drive?

How do I install Mountain Lion on a thumb drive when my computer is running Mavericks? I downloaded the Mountain Lion installer, but when I attempt to run it I get a message that says "You cannot install OS X 10.8 on this computer." I don't want to install it on the computer, I want to install it on the thumb drive—but it won't give me a choice of drives.
The reason I want to do this is I want to be able to boot my iMac into Mountain Lion in order to test a hardware/software combination I suspect might be incompatible with Mavericks.
(Note: there are plenty of instructions online for how to create a bootable thumb drive with the Mountain Lion installer, but that's not what I want. I want to install ML on the thumb drive itself.)

Sure you have a proper installer application. When I start it I get:
Clicking on Continue, then accepting the licensing stuff, gets me to:
If you click on Show All Disks, then all mounted disks will be presented including your flash drive.
Now the above is a Mavericks installer, but it's the same for Mountain Lion.

HT1338 how do i install mountain lion

how do i install mountain lion the system will not allow me to "app it" as the Mac OS is older than 10.6

If your Mac is compatible, the upgrade path for you would be to purchase Snow Leopard from the Apple Store: http://store.apple.com/us/product/MC573/mac-os-x-106-snow-leopard
After installing that, you would run Software Update to bring it up to 10.6.8.
Then, you'd access the App Store from Snow Leopard and purchase Mountain Lion.

How do I install mountain lion over maverick

how do I install mountain lion over maverick

Before the install
Ensure your data (at least all Home folders) is backed up before you install. Hard disks can fail at any time so it is important to regularly backup to an external disk with Time Machine or a third party alternative. Inexperienced users should follow Apple's install advice but experienced users may prefer to do a clean install.
OS numbers and names
OS X 10.4.x - Tiger
OS X 10.5.x - Leopard
OS X 10.6.x - Snow Leopard
OS X 10.7.x - Lion
OS X 10.8.x - Mountain Lion
More about Macs
The Apple History site has specifications for every Mac ever produced: http://www.apple-history.com
Upgrade to Leopard
Those wishing to upgrade to Leopard should be aware that install disks can be expensive. Details: http://lowendmac.com/deals/best-os-x-leopard-prices.html Standard Leopard installers impose several hardware limitations including speed and RAM size but all these restrictions can be overcome. Google for details. Leopard works well at 500 MHz with 1 GB of RAM and many happy users have less than this.
Upgrade beyond Leopard
OSs beyond OS X 10.5.8 require an Intel processor. If in doubt click the apple at the top left of your screen and select 'About this Mac'. This will give you your OS number. Then click 'More Info' to see which processor you have. If it says PowerPC you cannot upgrade to Snow Leopard and above. If you have an Intel Mac it is well worth upgrading to Snow Leopard now and then considering other options after that. You can buy Snow Leopard here: http://store.apple.com/us/product/MC573Z/A
Upgrade to Lion
Information about upgrading Snow Leopard to Lion: http://store.apple.com/us/product/MD256Z/A
Upgrade to Mountain Lion
Information about upgrading Snow Leopard or Lion to Mountain Lion: http://www.apple.com/osx/specs/
Important
Check that your Mac complies with any requirements.
If you are not in the US you should use the Change Country link at the bottom of Apple pages.

How do you install mountain lion on additional macs?

How do you install Mountain Lion on additional Macs?

Log in to App store on other computer with the apple ID that Mountain Lion was purchased with.
Click on Purchases icon at top of page.
Download and install.
R

How do you install mountain lion on all your macs in the household using one 20 dollar license?

how do you install mountain lion on all your macs in the houshold with the same license (you only pay 20 bucks for all your macs) is that right?

As long as they're all logged into the Mac App store with the same Apple ID, you can re-download the installer to all the Macs.
Or you can save a copy of the installer file before you run it and use that to update the other Macs. The ML installer file will appear in your Applications folder when it's done downloading. Copy it to another location (don't move it).
If you don't copy it before you upgrade, it will disappear when ML is finished installing.

Many of my System Preferences will no longer work after installing Mountain Lion. Software update, startup disk, iCloud, etc. no longer will launch. I keep getting a drop down window saying I must restart system preferences in order to use. No go!

Many of my System Preferences will no longer work after installing Mountain Lion. Software Update, Startup Disk, iCloud, Time Machine, Notifications, etc. no longer will launch even though they do show their icons in the system preferences window. I keep getting a drop down window saying I must restart system preferences in order to use with a "Cancel" or "OK" choice. After I click on "OK" the window just keeps reappearing with the same choices and the pane I wish to use still remains inoperative. Third party preference panes DO work.
Reinstalling OSX Mountain Lion did not help. Neither did throwing away preferences.plist.

Hi Jeff,
Tried to reply with my iPhone but not easy! Anyway, back on the laptop now. Yes the crash was bad but Tek support at Prism Sound was really good. In the end I rebuilt the whole system on a new disk which took a couple of days with all the plugins, softsynths etc.... but there seemed to be no alternative in my case, and this was agreed with Prism sound as being the only alternative left to me. I still don't really know what caused the crash but ML and Orpheus are both working fine now. Let's face it, you'll have to update at sometime..maybe best to pick some time between projects On balance, I suspect that my problems were unique to my system and that your installation will go ok.
Hope it goes well,
Rick

How do I Install Mountain Lion on a Mac with 2 Drives

Good day ALL,
I am upgrading my Mac mini to add a second hard drive (solid state). After the HD install is complete I plan to re-install Mountain Lion and transfer my Applications, Files, etc from my backup. I am very comfortable with installing Mountian Lion on the solid state drive and making it the bootbale drive, my questions are:
1. It is a 120G soloid state hard drive, so I only plan to use it for the OSX system, Library and Applications. Should I include other files?
2. I plan to use my 750G SATA drive for the Users. How do I set up the User Folder archive on this drive? Do I just move it?
3. Then how do I ensure the User Folder on my backup, gets retored on the right drive?
Thanks

GreyWullf wrote:
Good day ALL,
I am upgrading my Mac mini to add a second hard drive (solid state). After the HD install is complete I plan to re-install Mountain Lion and transfer my Applications, Files, etc from my backup. I am very comfortable with installing Mountian Lion on the solid state drive and making it the bootbale drive, my questions are:
1. It is a 120G soloid state hard drive, so I only plan to use it for the OSX system, Library and Applications. Should I include other files?
2. I plan to use my 750G SATA drive for the Users. How do I set up the User Folder archive on this drive? Do I just move it?
3. Then how do I ensure the User Folder on my backup, gets retored on the right drive?
Thanks
Regarding 1:
$ cd /Users. sudo ditto myname /Volumes/TimeMachine/myname copies everything in $HOME to non-TM backup.
Ensured latest SSD firmware up to date.
Clean install of ML to SSD from 8GB USB stick created by Lion Diskmaker.
$ cd /Users. sudo ditto /Volumes/TimeMachine/myname myname (see part 2 for /Users on another drive)
Added latest Xcode and command-line tools. Added VirtualBox 4.1.20. Put the 65GB VirtualBoxVMs folder on the second drive. Edited the ~/Library/Virtualbox/VirtualBox.xml file for the new mount points. Beware that many SSD (including Vertex) warn not to exceed 50% drive capacity or they will invoke slower drive controller algorithm. After some clean-up and re-arrangement, I have 98GB free on this SSD. It sings.
Files that are heavily accessed/shared by users would be consideration for the SSD
Regarding 2:
If you have sufficient external storage, back-up your pre-ML /Users either with ditto as I did, or with TM, somewhere other than the 750GB drive.
Use DiskUtility and repartition the 750 as one (or more) GUID HFS+Journaled partitions depending on planned usage.
Reverse the back-up to put your user(s) on the 750GB drive
In System Preferences > Users & Groups, unlock, then right mouse button click on individual user names. Advanced options ... will appear. For Home directory, Choose ... the particular mount point for individual user accounts now on the 750GB drive. Done.
Regarding 3:
Because you have moved individual user accounts from the internal drive where your last TM backup occurred before ML installation, TimeMachine will not understand (as far as I know), the new /Volumes/750GB/User/you home directory location that you just changed in #2. Another reason I used ditto(1).
If you do not want Spotlight to index that 750GB drive, you need to inform Spotlight Preferences > Privacy to exclude the drive.
Hope this helps.
PS: Darn advanced editor eating bullet formatting!!
Message was edited by: VikingOSX

How I installed Mountain Lion on Un-repairable Hard Disk.

My Recommendations for Avoiding Trouble, Avoiding Risk, and Saving Time.
1) Make a boot clone first!!!
      http://www.bombich.com/
http://www.shirt-pocket.com/SuperDuper/SuperDuperDescription.html
2) Fix and repair your hard disk with Disk Utility and fsck_hfs before installing Mountain Lion!
    (Otherwise the installer will write-lock the disk preventing repair.)
Mountain Lion Aborted Installation—Claimed Hard Disk Failed, Couldn't be Repaired, and Should be Replaced
I have a 2011 MacBook Pro. Installation of Mountain Lion aborted claiming the hard disk could not be repaired by Disk Utility, should be backed up immediately, and replaced. It didn't make sense that the drive was booting up the computer for installation, but needed replacing. I removed the drive, put it in an external enclosure, and backed up the drive using a working Mac Mini, and Carbon Copy Cloner.
Hard Disk Was Write-Locked—Not Failing
Booting in Single User mode (hold command and S keys down while bootup is proceeding). I then typed in the fsck command given after Single User bootup. It informed me the drive was write-locked and read only. Now things were starting to make sense. Disk Utility couldn't repair the drive because it was write-locked! Maybe it could have been unlocked by the "chflags nouchg /Volumes/volume" or "chflags noschg /Volumes/volume" commands (http://hints.macworld.com/article.php?story=20031017061722471), but I didn't try it. Unlocking the drive is really worht a try because it could save hours of coppying through a slow USB interface.
I formatted my laptop drive after copying it to another large external drive. Then I used Carbon Copy Cloner to clone Snow Leopard from my Mac Mini to my freshly formatted original laptop drive. I unsellected the "Users" folder so I would only get the operating system—saving lots of hours copying data I don't need. Then I put the drive back in my laptop, and it booted with Snow Leopard. Checked the volume with Disk Utility and was informed the drive is fine. I removed the drive and connected it externally to my Mac Mini and ran fsck_hsf a few times in the terminal, which showed problems were found and fixed.
sudo fsck_hfs -fy /dev/rdisk1s2
Password:
** /dev/rdisk1s2 (NO WRITE)
   Executing fsck_hfs (version diskdev_cmds-491.6~3).
** Verifying volume when it is mounted with write access.
** Checking Journaled HFS Plus volume.
** Checking extents overflow file.
** Checking catalog file.
** Checking multi-linked files.
** Checking catalog hierarchy.
** Checking extended attributes file.
** Checking volume bitmap.
   Volume bitmap needs minor repair for under-allocation
** Checking volume information.
   Invalid volume file count
   (It should be 550614 instead of 550591)
   Invalid volume free block count
   (It should be 175459733 instead of 175460263)
** The volume MacBookPro HD was found corrupt and needs to be repaired.
3) sudo fsck_hfs /dev/rdisk1s2
Password:
** /dev/rdisk1s2 (NO WRITE)
   Executing fsck_hfs (version diskdev_cmds-491.6~3).
** Verifying volume when it is mounted with write access.
** Checking Journaled HFS Plus volume.
fsck_hfs: Volume is journaled. No checking performed.
fsck_hfs: Use the -f option to force checking.
[karl_ihrig] 4) sudo fsck_hfs -f /dev/rdisk1s2
** /dev/rdisk1s2 (NO WRITE)
   Executing fsck_hfs (version diskdev_cmds-491.6~3).
** Verifying volume when it is mounted with write access.
** Checking Journaled HFS Plus volume.
** Checking extents overflow file.
** Checking catalog file.
** Checking multi-linked files.
** Checking catalog hierarchy.
** Checking extended attributes file.
** Checking volume bitmap.
** Checking volume information.
** The volume MacBookPro HD appears to be OK.
5) sudo fsck_hfs -fy /dev/rdisk1s2
** /dev/rdisk1s2 (NO WRITE)
   Executing fsck_hfs (version diskdev_cmds-491.6~3).
** Verifying volume when it is mounted with write access.
** Checking Journaled HFS Plus volume.
** Checking extents overflow file.
** Checking catalog file.
** Checking multi-linked files.
** Checking catalog hierarchy.
** Checking extended attributes file.
** Checking volume bitmap.
** Checking volume information.
** The volume MacBookPro HD appears to be OK.
6) sudo fsck_hfs -fy /dev/disk1s2
** /dev/rdisk1s2 (NO WRITE)
   Executing fsck_hfs (version diskdev_cmds-491.6~3).
** Verifying volume when it is mounted with write access.
** Checking Journaled HFS Plus volume.
** Checking extents overflow file.
** Checking catalog file.
** Checking multi-linked files.
** Checking catalog hierarchy.
** Checking extended attributes file.
** Checking volume bitmap.
** Checking volume information.
** The volume MacBookPro HD appears to be OK.
I put the drive back in the laptop and repeated the fsck commands after a Single User boot. (Omited the sudo commands and used /dev/disk0s2.)
Downloaded and Successfully Installed Mountain Lion on "Unreparable" Drive
I downloaded the Mountan Lion installation application to my laptop, ran it, and had a smooth install.
More Trouble Migraiting My Applications and Directory
I expect to use up more time changing my computer name, migrating applications and rsyncing my User Directory. I will post how I achieve this.
I Hope People Avoid Trouble and Problems are Solved
I hope everyone will avoid trouble by making boot clone of their whole disk before attempting an install of ML and repairing their disk with Disk Utility and fsck before ML installer prevents it with a write-lock. Please see the first section.
I hope this solves other peoples problems with 'unreparable' disks. I believe this proves disks are repairable when ML says otherwise.
Good luck everyone!

troca, you certainly helped dtigerbme! Isn't that encouraging?
I recommend you copy your drive as soon as possible. I really don't think the drive is bad, but you may have to format it and copy back to it. Hopefully not. Clone or backup the drive before trying this recipe. Any time you have errors on a drive, back it up. A failing drive has lmited life. However, I don't think these drives are really failing, but that is my opinion and I break a lot of things.
Let's try this recepie for you:
Start in Single User Mode. Power on while holding the Command + S keys.
At the prompt, type "fsck_hfs -fy" or "fsck -fy" and hit return.
Do it again.
Enter the command "reboot".
Just googled "volume count disk utility" and got the same recipe to fix it.
http://counterjumper.com/post/19265700171/how-to-fix-invalid-volume-free-block-c ount-error-in
So my recipe is to try to fix the drive without taking it out of the computer, which requires you can boot it up.
troca it looks like Apple has said that error is benign and can be ignored in 2010.
http://support.apple.com/kb/TS2028?viewlocale=en_US&locale=en_U
I do believe fsck will fix it though.
Some other results from the same search:
http://forums.macrumors.com/showthread.php?t=1071850
https://discussions.apple.com/thread/3635034?start=0&tstart=0

How do I install Mountain Lion AND format the hard drive?

I want to do a completely clean install of Mountain Lion.
I had Snow Leopard installed, upgraded to Mountain Lion (by buying it from the App Store) but how do I tell it to format the drive and then install Mountain Lion?

pforkes wrote:
I want to do a completely clean install of Mountain Lion.
I had Snow Leopard installed, upgraded to Mountain Lion (by buying it from the App Store) but how do I tell it to format the drive and then install Mountain Lion?
Snow Leopard would have needed to be installed on a properly formatted drive, so I don't understand why you would need to format it again to that same format.
Cheers
Pete

How do I install mountain lion but keep snow leopard as a bootable os

I'm caught in a vicious circle.
I need mountain Lion to be able to use iCloud and to be compatible with a couple of apps on my iPad. However some of my major apps on my mac Pro won't work under Lion or mountain lion.
SO the answer is to have both Snow Leopard and Mountain Lion on my Mac Pro.
Does anyone know of any instructions on installing Mountain Lion onto one SSD, whilst leaving Snow Leopard on another, allowing me to boot from either.
Also - any advice on the cleanest way of installing my apps under Mountain Lion (those that are compatible). I'm confused to how I can install my apps twice, especially if I have all ready registered Unser Snow Leopard.
Thanks

I'm assuming that you currently have an SSD with Snow Leopard on it, and another SSD with no operating system. Is that correct?
What I would do is use the Snow Leopard DVDs to install a fresh copy of Snow Leopard on the SSD that currently has no operating system, and "migrate" your data and applications from the other SSD. (alternatively, you could use something like Carbon Copy Cloner to duplicate one SSD onto the other - but that's probably only an option if one SSD is completely blank or you're willing to erase it).
Then upgrade to Mountain Lion on the original SSD.
When you're done, hold down the option key when you start up to select which OS to use.
For many applications, it won't matter which SSD they're on - you'll be able to run them from either system without worrying about where the app is installed (each will have it's own preferences, stored on the current startup drive). But some applications are more complex, and rely on additional files that are scattered around the Library folders on the startup drive. Since you migrated your applications and data, you should have everything that's needed on both systems, including license keys, etc. I did this for a little while with Quicken, and I actually left the Quicken app on the Lion drive - it worked just fine even though I started up from an external Snow Leopard drive (I skipped the migration step entirely, and reentered my Quicken license code when starting up from Snow Leopard).
How successful this will be depends on exactly which applications you're using. Most of them will be OK, but if you're using something that has some esoteric copy-protection mechanism, you might run into a little bit of trouble. Consider upgrading the "new" Snow Leopard install to Mountain Lion, if that's the case, so you're original system SSD will remain Snow Leopard, with no changes.

How How can i install Mountain Lion with faulty firewire ports??

Basically the firewire ports are fried on my MBP 3.1 (2007). My mac used to take hang on blue screen and take 10 mins to boot but I solved this problem by installing an ssd and deleting the following kext file...
/System/Library/Extensions/IOFireWireFamily.kext
My MBP now boots in under 20 seconds so if anybody is having the same issue then there is the resolotion..
Anyway these are the steps I have taken but failed to properly install ML.
Dowloaded Mountain Lion at least 3 times from the App store to make sure the download wasn't corrupted.
I even tried making a Lion Bootdisk so I can install Mountain Lion on a USB drive (Install ESD.dmg).
I have even tried installing Lion first thinking I would take it one version at a time but gets stuck on boot screen too.
I even changed my hard drive to a new blank SSD drive to see any difference.
Each time I install Mountain Lion or Lion, everything is good until the installer has to restart the laptop.
Laptop gets stuck at the grey boot screen with the Apple logo and the loading circle. Nothing ever happens after.
I always had to use/boot to the Snow Leopard CD so I can restart the laptop back to the Snow Leopard OS and then update to 10.6.8.
I am guessing it is the ML dmg reinstalling the above file ( /System/Library/Extensions/IOFireWireFamily.kext ) which is leading to the same issue because of the faulty firewire ports.
Is there anyway I can resolve this because its doing my head in and Snow Leopard is old and doesnt support newer software that I would like to use.
Any help would be kindly appreciated. Thanks

Kurt Lang wrote:
Just some thoughts.
I presume you already partitioned the new SSD drive as GUID?
Is there anything on the new drive at all yet, or anything that isn't already backed up? If not, you could try erasing the drive and then installing OS X from the bootable flash drive installer you made.
Ive tried that and yes it is GUID. Im going to get grey hairs soon and Im not even 30 lol .... yet
I am not going to buy a new logic board as its just not logical (sorry for the pun) I got the mac for free and I want to spend as little money as possible. Im running out of ideas though

How can I install Mountain Lion on my MacBook 10.6.8

I have not been able to install Mountain Lion. I have the last MacBook that it can be installed on.
There is no explanationother than after 3 minutes, that the there has been an error in the installtion.
I don't even know where to begin!

Try this:
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.

How do I install Mountain Lion on FileVault2 encrypted System disk

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