Can i clean install Lion into my Macintosh HD drive and leave Bootcamp as it is?

I would like to clean install Lion into my Macintosh HD drive and leave the bootcamp drive without getting affected from it...
is it possible or do i have to do the install on all the drive?

If you have the Lion installer application in your Applications folder, then I suggest you make a copy in your Downloads folder because the installer deletes itself automatically after the installation. By saving it you can make your own USB installer:
Make Your Own Lion Installer
1. After downloading Lion you must first save the Install Mac OS X Lion application. After Lion downloads DO NOT click on the Install button. Go to your Applications folder and make a copy of the Lion installer. Move the copy into your Downloads folder. Now you can click on the Install button. You must do this because the installer deletes itself automatically when it finishes installing Lion.
2. Get a USB flash drive that is at least 8 GBs. Prep this flash drive as follows:
Open Disk Utility in your Utilities folder.
After DU loads select your hard drive (this is the entry with the mfgr.'s ID and size) from the left side list. Note the SMART status of the drive in DU's status area. If it does not say "Verified" then the drive is failing or has failed and will need replacing. SMART info will not be reported on external drives. Otherwise, click on the Partition tab in the DU main window.
Under the Volume Scheme heading set the number of partitions from the drop down menu to one. Set the format type to Mac OS Extended (Journaled.) Click on the Options button, set the partition scheme to GUID then click on the OK button. Click on the Partition button and wait until the process has completed.
Select the volume you just created (this is the sub-entry under the drive entry) from the left side list. Click on the Erase tab in the DU main window.
Set the format type to Mac OS Extended (Journaled.) Click on the Options button, check the button for Zero Data and click on OK to return to the Erase window.
Click on the Erase button. The format process can take up to several hours depending upon the drive size.
3. Locate the saved Lion installer in your Downloads folder. CTRL- or RIGHT-click on the installer and select Show Package Contents from the contextual menu. Double-click on the Contents folder to open it. Double-click on the SharedSupport folder. In this folder you will see a disc image named InstallESD.dmg.
4. Plug in your freshly prepared USB flash drive. You are going to clone the InstallESD.dmg disc image to the flash drive as follows:
Open Disk Utility.
Select the USB flash drive from the left side list.
Click on the Restore tab in the DU main window.
Check the box labeled Erase destination.
Select the USB flash drive volume from the left side list and drag it to the Destination entry field.
Drag the InstallESD.dmg disc image file into the Source entry field.
Double-check you got it right, then click on the Restore button.
When the clone is completed you have a fully bootable Lion installer that you can use without having to re-download Lion.
However, if you don't do this you can always redownload the installer by using OS X Lion- About Lion Recovery or by reinstalling Snow Leopard 10.6.8.

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Can I simply clean install lion on a fresh hard drive?

This nonsense: To upgrade your Mac to OS X Lion, you must be running OS X Snow Leopard. If you have OS X v10.5 Leopard, purchase OS X v10.6 Snow Leopard now and install it on your Mac. Then buy OS X Lion as a digital download from the Mac App Store- seems very very un-apple.
So let me get this straight: I have to install an outdated OS (snow Leopard) in order to install Lion. ???
Remember when an OS was self contained, not an add-on upgrade feature?
I am puzzled- I would simply like to boot my mac pro from leopard (current os), and install LION on a newly placed, freshly formatted internal hard drive on
same computer. Why would i need to have the intermediary step?
The folks at apple store couldn't answer- even the genius folk weren't sure- dissappointing at best-
Any help appreciated.

So the workaround is the flash drive?
I'd rather pay more to keep less code written to my machine-
it just makes no sense togo the other route-
I am genuinely dismayed that apple seems to have
hit (past tense) it's heyday, and now i watch as Windows-type logic
slowly infiltrates the once so ultra efficient, no nonsense MCintosh
ideology..........

Can't Re-Install Lion from Recovery HD - Internal Drive Locked and Grayed Out

I can't boot into Lion on my Macbook Pro. I can boot into Bootcamp. When I'm in Bootcamp, using MacDrive, I can access all my files on my main Lion partition. I can also boot into the Recovery HD. From there I can get to Disk Utility which tells me that I need to repair my Lion partition. When I run the repair, it tells me it can't be repaired.
Given that I can still access all my files from Bootcamp, I tried to re-install Lion using that selection from the Recovery HD menu. It verifies my Lion copy over the internet. But when it asks me to designate the drive that I want to re-install Lion on, the drives (Bootcamp, Recovery and Mac) are all grayed out and all say "Disk is Locked". I'd rather not reinstall from my Time Capsule back up because of the time involved, the fact that the backup is a week old and because I dropped the !@#$ external drive with the back up on it yesterday and I don't trust it (it's making weird noises).
I've tried booting up in safe mode and ctrl-sys-r-p but all that happens is hours of watching the wheel spin. I had not set up File Vault so it shouldn't be for want of a File Vault password.
Any idea how I can unlock the drive to at least try to re-install Lion?

Thanks for the idea. I do have another Macbook at home although it's quite a bit older and I've only upgraded it to Snow Leopard, but I'll certainly give it a try. I've already tried what would seem to be about the same thing with, unfortunatley, no luck. I have an old hard drive (running Snow Leopard) that used to be the internal drive in my Macbook Pro. When I pulled it out, I stuck it in an enclosure. When this problem cropped up, I plugged it into the Macbook Pro that's giving me grief (via USB), booted up on the enclosed drive, and ran the disk utility off of that drive against the current internal HD of the Macbook Pro. All I got was the "can't be repaired" message.

Clean Install Lion Dsik Mount Problem - "(Illegal Seek)"

I'm trying to create a bootable USB so I can clean install Lion on my mac. However, when I try and burn the .dmg file onto my USB I get an error message along the lines of "Unable to create "installesd.dmg - (Illegal seek)".
The USB (4GB) is Mac formatted. I have tried using my Mac formatted iPod (60GB) as well but that doesn't work either.
Does anyone have any ideas?
Thanks

Hi Arun, have you migrated any data into your clean Lion installation yet? I'm curious to learn about the startup speed of such a clean installation.
While i simply updated from Snow Leopard i'm experiencing a significantly slowed-down startup. I wonder whether it's worth to start from scratch and first update to Lion and then manually install all my applications and data.
Thank you.

Clean install lion when already on Lion?

How do I clean install lion when i'm already on lion?

Your best bet would be to create a Lion Boot Disc which is actually quite easy with the OS X Lion installer and Disk Utility. The problem is that since your are already running Lion, I don't think it will allow you to re-download it to make the boot disc. One option would be to clean install Snow Leopard, download the OS X Lion installer from the Mac App Store and make the boot disc. It would be easier to use another computer that already has Snow Leopard installed and fully updated to make the boot disc. All you would have to do is sign into the App Store on the other computer and Lion should be under purchased, just don't forget to log out if the other computer is not your own. Regardless, here are the instructions on making a Lion Boot Disc:
Performing a clean install of Lion is easy once you create a Lion Boot Disc. How do I create a Lion Boot Disc, you ask? That's easy too! Just follow these instructions: http://www.macrumors.com/2011/07/18/make-an-os-x-lion-boot-disc/
The fact is that the Lion installer is packaged around a bootable disk image that can easily be burned to a standard 4.7GB DVD. With the boot disk you can run disk utility to erase your Mac, and then clean install just like you could with every other version of Mac OS X. Just don't forget to backup all your data!!!

OS X and Windows on MacBook Pro. Can I clean install only the OS X?

I have both OS X and Windows on my MacBook Pro. The OS X has been ridiculously slow and freezes up most of the time, especially when I use Office. The Windows partition has been working perfectly. Can I clean install just the OS X part of my computer? How would I go about doing that? I want to leave the Windows partition alone.
Thanks!!

Hopefully this will work:
Install or Reinstall Lion from Scratch
If possible backup your files to an external drive or second internal 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.
Erase the hard drive:
Select Disk Utility from the main menu and click on the Continue button.
After DU loads select your startup volume (usually Macintosh HD) from the left side list. Click on the Erase tab in the DU main window.
Set the format type to Mac OS Extended (Journaled.) Click on the Erase button and wait until the process has completed.
Quit DU and return to the main menu.
Reinstall Lion: Select Reinstall Lion and click on the Install button.

TS1600 OS X could not be installed on your computer. OSX can't be installed on the disk Macintosh HD because a recovery system can't be created.

I just bought the new OS X 10.8 and downloaded but when I tried to install it on my computer Installation Failed and I got this message:
"OS X can't be installed on the disk Macintosh HD , because a recovery system can't be created."
I tried so many times but the same message comes out to me each time and when I restart the computer I am back to the same OS X installer and can't access my computer any more so I am really stuck I can't install the new OS X version and can't go back to the old OS X version or access my computer.
Please help
My computer is MacBook Pro 13"

OK. You have a Boot Camp partition which is why the issue. See the following:
It seems the issue is that the space at the "bottom" of your available space when Lion installs it's partition is already occupied by BootCamp. The fix was to go into Disk Utility; Select your Hard Drive; Select Partition; Move the bottom of your main partition "up" a bit to create a space for Lion; close Disk Utility; Install Lion; once Lion is successfully installed, go back into Disk Partition and drag the bottom of your main partition back "down" to the bottom of the window.
In your case use Disk Utility to "shrink" your OS X partition a little more than 1 GB.
To resize the drive do the following:
1. 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.
After the main menu appears select Disk Utility and click on the Continue button. Select the hard drive's main entry then click on the Partition tab in the DU main window.
2. You should see the graphical sizing window showing the existing partitions. A portion may appear as a blue rectangle representing the used space on a partition.
3. In the lower right corner of the sizing rectangle for each partition is a resizing gadget. Select it with the mouse and move the bottom of the rectangle upwards until you have reduced the existing partition enough to create the desired empty space. The space below the resized partition will appear gray. Click on the Apply button and wait until the process has completed.
Remember that you only need to shrink the OS X partition a little more than 1 GB. Now, when you try the Mountain Lion installation the installer will be able to make the Recovery HD.

I erased my HD. Now I can't instal mountain lion from my bootable flash drive, and keep getting "installation error. Try again."

I bought mountain lion, made a bootable flash drive.
I booted from it and it went to upgrading right away!
So I stopped it and went to my former recovery partition I erased my HD because I wanted a clean start.
Now I can't instal mountain lion from the bootable flash drive, and keep getting "installation error. Try again."
and there is no 4 choices window.
I don't know what to do.

How did you create the USB install thumb drive? If it was with Disk Utility I have run into this problem and have since used THIS program to make the USB install drive.
As to your problem you only have one option and that is to Reinstall the Original OS X version that came on your computer or if you still have the Lion Recovery Partition use that to reinstall Lion. Or if you system came with Lion and you have No Lion Recovery HD Partition you can boot the system from over the internet and Reinstall Lion.
At startup hold down the Command+Option+r keys until you saa a spinning Globe in the center of the screen. Once that loads Repartition the drive as One partition and then reinstall Lion.

How do you do a Clean install lion

How do you do a clean install of lion? My iMac is 8 yr old and has gotten sluggish. At one point it was suggested that I might want to do a clean install but no one ever told me how to do that since we don't have a disk!

Assuming you already have Lion installed, boot into Recovery Mode (Command-R). From there you can reinstall Lion. Note, however, that a clean install means you first erase the drive you want to do the clean install on, and unless you have a complete backup of everything that's currently on it, you'll lose it all; the clean install will leave you with a fresh operating system but nothing else. To get it all back, make that external clone, then when the clean install is finished on the internal, Setup Assitant will run and you can point it at the external clone to get all your stuff back.

I install LION on my mac pro 2008 and it's alway's pop with " there was a problem connecting to the server " Time Capsule" .How can i remove this popup. My Time machine is working fine and also rename it. But the popup keeps on coming with the old name.

I installed LION on my mac pro 2008 and it's alway's pop with " there was a problem connecting to the server " Time Capsule" .How can i remove this popup. My Time machine is working fine and also rename it with less than 7 karakters. But the popup keeps on coming with the old name.

I have a BT Infinity router plugged into the Time Capsule, not sure where the radio settings are?
They are able to use the network settings of the TC i.e. they can connect to the internet via the wifi through the TC but when they try and connect to the AirPort Disk this is where it is not allowing a connection.
I don;t have the drive shared out at all at the moment, is this necessary? How do I do this if so?
I have attached the screen shots of all the settings.
Thanks again for your help.

Clean install Lion

I have installed Lion from The App Store the system now seems a little slower than Snow Leopard on start up.
I am considering a couple of things but I am new to Mac's so not 100% sure on these.
1) By upgrading through the App Store does it leave all the snow leopard files on the machine???
2) Can i simply reinstall Lion Cleanly and use Time Machine to put all my photos and everything back where they should be???
3) If I restore from Time Machine will it put the Snow Leopard files back if there are any??
Thanks

bradf11 wrote:
Ok some conflicting reports here either it has installed on Snow Leopard or it hasnt.
It has not installed Snow leopard if you installed lion over the macappstore.
I have had it running since day of release was jsut wondering if clean install would free up some HD space and improve boot up speed.
I don't think you can make your Mac faster just by reinstalling the system. Maybe thats possible with pcs, but macs only after a long time.
How about using system-enhancing apps?
Delete unused Languages with Monolingual (http://monolingual.sourceforge.net/)
delete caches, powerpc-app-parts, etc with Clean My Mac (http://macpaw.com/cleanmymac)

Remove Data & Clean Install Lion

Hi folks
I recently received a replacement iMac from Apple Care, when it arrived it had the wrong configuration but I did not discover this until after I had migrated all my data back. I am getting ready to return this to Apple and I am wanting to remove all my data and clean install Lion before I return it.
What is the best way to make sure all my data has been removed and re-install Lion (it came installed with Lion). Sorry if this has already been asked but just want to make sure my data has been wiped.
Thanks

Restart, holding down the CMD+R keys, select Disk Utility, and erase the HD, then select zero out data. When finished, reinstall Lion. This assumes that you've backed up your data to an external HD so you can restore it when the new machine arrives.

Best way to clean install Lion?

Right, i've posted a lot today, but i'm hoping this should be the last time:
There's two ways of clean installing Lion (that i've seen), which one is better?:
1. Putting the install.dmg onto a sd card/memory stick, holding alt whilst restarting, booting from that memory stick,
http://www.youtube.com/watch?v=irgiVzBwaos
2. Starting in Lion, going into recovery mode and using that disk utility to erase hard drive and then to re-install Lion,
http://www.youtube.com/watch?v=OsDRCSipDHI
Thank you very much.

It really is difficult to say, the USB Flash drive is slower, but the master boot block for the recovery partition may be damaged. Your mileage may vary depending on the health of each.

Can you clean install Yosemite?

My iMac is becoming a bit sluggish so I would like to take the opportunity for a clean install with Yosemite. Can I clean install Yosemite as you could with Mavericks by using ctrl -R, erasing the hard drive, reformatting and then using internet recovery?
Late 2012 iMac
Currently on latest OSX Mavericks - OS X 10.9.5 (13F34)

Rather than an unnecessary clean install answer some questions about the slowness to see if we can determine what is causing the problem. What exactly is slowing down, booting, a application or applications, which ones, etd.?
Download and run Etrecheck. Copy and paste the results into your reply. It's a diagnostic tool that was developed by one of the most respected users here in the ASC to help identify the more obvious culprits.

How many times can you clean install leopard on the same computer?

How many times can you clean install leopard on the same computer? Will the leopard dvd run out of installations and not let you install anymore?

Hi colman Prez;
Now that the funny comments have been made, I have a serious question and that why are you worry about reinstalling Leopard with an Erase & Install which is what I take that you mean when you say clean install. In actually fact there is no such thing in OS X as a clean install.
I am curious because in all the years I have used OS X, I have yet to do an Erase & Install yet.
I know with Windows that they suggest reformatting and reinstalling at the drop of a hat but that isn't true with OS X.
Allan

Can i clean install Lion into my Macintosh HD drive and leave Bootcamp as it is?

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