Partition Erase

I Partition my Hard Drive into 3 separate Partitions. However now one of the partitions I want to cancel and put back into the main drive. How do I delete the existing partition and put that available space back into my main HD?
thanks

Sorry never got my answer I was looking for
So if I delete me second partition (I have already deleted me 3rd one and made my second HD bigger) which would make my Main HD the original size....
Can I turn partition it again and have 2 HDs the Main and then another one for video files without having to reinstall everything on my Main HD?
I did it the first time which is how I got 3 Partitions but realized I only need 3 and need to make my main HD bigger in size then what i partition it to be.
thanks

Similar Messages

External Hard Drive Partition, Erased Files. HELPPPP!

Something went wrong and has now "erased" all my files on my external hard drive (used for backing up with TM), after adding a partition second partition. I did not install anything onto the newly created partition as my focus was then distracted by the fact that all my data had now been erased.
This should not have happened as I followed every step carefully and thoroughly from this link: http://web.me.com/pondini/AppleTips/DU3.html
I wanted to boot Snow Leopard from my external hard drive. So I used Disk Utility to add a partition on my external hard drive (clicking the + sign). The drive had around 264 GB (shaded in blue), with approximately 34GB free. So I type the newly desired partition of 8GB. Disk Utility was saying explicitly that "this partition will not be erased", referring to the original partition of 264GB that will become approximately 272GB, the one that contains all my files. I say to myself, okay, that is safe as it is telling me my files will not be erased.
With the partitions split and my original data of 264GB still shaded in blue, I click apply.
A box prompts me to confirm partition, reading:
"Partitioning this disk will change some of the partitions. No partitions will be erased"
This partition will be added:
"Snow Leopard HD"
This Partition will be resized:
"My Passport"
So obviously I confirm and click Partition...
It took about 30 seconds or under to partition and then I noticed my original partition was no longer shaded in blue but was completely empty
I open my external hard drive in Finder and none of my files are visible.
I open Time Machine and it is not displaying any of my back ups and will no longer back up. Its says Latest Backup: Failed i
So I click on the i button and it says:
Time Machine Error
The backup volume could not be found.
At this point I am panicking! I followed every step correctly and it clearly stated no files would be erased.
What has happened here? and how can I retrieve my lost files?
Disk Description : WD My Passport 071A Media
Format : Mac OS Extended (Journaled)
Partition Map Scheme : GUID Partion Table.

JOHN YOU ARE A GENIOUS!!!!!!!!!!!
I AM USING DISK DRILL RIGHT NOW AND IT IS SCANNING AND LISTINIG ALL MY FILES! EXCUSE THE CAPITALS BUT I AM SO THANKFUL FOR YOUR HELP! AHHH
NEXT STEP IS TO RECOVER IT ONCE SCANNING IS DONE! IT IS LOOKING PROMISING AS I AM LISTENING TO THE MUSIC FOUND ON MY HARD DRIVE WHILE SCANNING IS TAKING PLACE
THANK YOU SOOO MUCH!!!!!!!!!

Cannot partition, erase, format or restore (OS X Lion, MBP 2009)

Hi!
I have a 2009 MacBook Pro 13" (2.53 / 4GB / 250GB / Lion) that stalled on the grey screen + spinning wheel a few months ago. I was able to recover my data and load it onto a new MBP, so I set the old one aside. I am now trying to repair the problem and cannot get past DiscUtility.
Starting with a Cmd+R start:
"Use English for the main language" [press Enter]
Mac OS X Utilites
[Double-click Disc Utility]
I no longer have "Macintosh HD," but instead a volume called "disc0s2."
From the First Aid tab, I can click Repair Disc. It states: Verifying and repairing partition map for "ST9250315ASG Media" and the time bar begins to run across, while the details box does 5 checks (prereq's, partition list, EFI system), and begins "Repairing the EFI system partition's file system" This runs for a seemingly endless amount of time, until the mouse changes from arrow to spinning color wheel. At this point, clicking nothing works, but the mouse still moves. I manually restarted after 25 minutes. I can let this go all night, but I would like to continue trying alternatives.
For Volume, the error reads:
     Volume Erase Failed
     Volume Erase failed with the error:
     File system formatter failed.
For partition, I have:
     Partition Layout: Current
     Partition Information:
          Name: disc0s2
          Format: Mac OS Extended (Journaled)
          Size: 249.2 GB
From here, when I try to set up one partition, renamed "Macintosh HD" still journaled for the total capacity (250.06GB), I get:
     Partition Failed
     Partition failed with the error:
     Couldn't unmount disc.
And then....
Starting with a Cmd+R start:
"Use English for the main language" [press Enter]
Opened Terminal to verify "date" is correct, which it is. Close Terminal.
[Double-click on Install Mac OS X Lion]
[Click Agree]
The only option I have to install it on is "Recovery HD." It has 650MB total, with 140.3MB available. Also states, "This disc is locked."
I cannot click on the disc anyways, and the only available option is 'Back.' Ultimately, I have to exit Install, and I'm back to the Mac OS X Utilities.
So, could it be a bad drive? It would seem impossible to me considering that any of this is working at all. I have also tried to boot from a OS X Mavericks USB drive (from my newer MBP), but with the same results; except that the Install OS X is for Mavericks. Everything else is exactly the same.
I don't need any of the data on the computer (if there is any left anyways), and I'll try just about anything.
Thank you in advance for your time!

Thanks for the quick reply. I'm afraid that might be true. Can the computer operate like this with a bad HD?
Also:
For partition tab, I have:
     Partition Layout: Current
     Partition Information:
          Name: disc0s2
          Format: Mac OS Extended (Journaled)
          Size: 249.2 GB
From here, when I try to set up one partition, renamed "Macintosh HD" still journaled for the total capacity (250.06GB), I get:
     Partition Failed
     Partition failed with the error:
     Couldn't unmount disc.

Unable to partition/ erase/ format 1Tb 6Gb Hitachi internal HD

Hi All
I was a Wndows user and recently given a mid 2010 MBP 13 inch. After about 2 months the original Hitachi 320Gb HD failed. Bought a 1Tb Hitachi 32Mb Sata II HD replacement. Booted up from my recovery Mountain Lion USB stick. I tried using Disk Utility to erase and partition the new HD but kept having Partition failed with the error: Wiping volume data to prevent future accidental probing failed. Disk Utility sees the HD but is not able to format it. Any ideas?

Does the hub have it's own power supply?
Test with & without the hub.
You have tried different USB ports?
You have disconnected other inessential USB devices?
Is it a custom cable? Can you try another?
I'd also try recovery mode (cmd+r at boot, select Disk Utility) to see if that works any better - that could indicate the OS is at fault.

Windows partition erase

Hi every one , I made a partition on my harddisk to use windows on it and now i realese its the stupidest thing i have ever done since i bought my macbook. now i am trying to erase windows and use the 10 GB but i have no idea how , i have erased bootcamp and bootcamp assistance by mistake i guess and now i am lost . i tried the disk utility but i am not really sure how to do through there
can any please help me to remove this and use the space for a better use ???

You can use a utility (that is buy) such as DriveGenius
http://www.prosofteng.com/products/drive_genius.php?PHPSESSID=fbd61ecc44c592bfc8 a5f2623e789bda
to repartition your HD on-the-fly. (I'd suggest backing up important data befoer trying to repartition) It's not cheap, but it does some other functions as well, so depending on your needs, it may be a good investment.
It may be possible to google around and find a way to repartition your HD via Terminal - just be really careful.

Format partition erase bootcamp as well?

Hello there,
Can someone tell me if I format my Yosemite install will it also erase my Bootcamp partition also? Basically I want to start a fresh OS but I don't want to do the whole Windows install again!
Is this possible? If so could someone point me in the right direction? I found this...
http://www.edugeek.net/forums/mac/64777-rebuild-mac-osx-but-keep-bootcamp-instal l.html
Which is exactly what I want to do but I'm on Yosemite and this person was on Snow Leopard...It might be the exact same process but just wanted to check?
Cheers,
Squibn

Should be the same process. If running 10.7 or later, you can boot into the Recovery Partition to do the erase (command - R on a restart).

Old time machine backup partition erased, but new partition failed

I had a defective time machine backup and had to start over. My disk has 4TB. The original time machine backup contained two backups from different laptops and was in the largest partition of 2TB. I then had two addition 1TB partitions. I remade new time machine backups to each of the 1TB partitions for each of the mac book pros. When I went to delete and change the original 2TB partition I found I could minus it out to create free space, but all attempts to try to repartition it as 2TB or as 2 1 TB pieces and even a piece as small as 200MB failed and asked me to resize closer to the original partition.
I have seen many similar issues, but not quite like this. I have already shut down the external drive and unplugged it and the restarted my machine, but to no effect. I now have 2 1 TB partitions and a 2 TB empty space.
Any suggestions?
I'm a little afraid to copy the Time Machine backups to a new drive as I heard that is NOT a good idea.
Is this a problem created when a partition is used for a Time Machine backup?
Han

How are you looking for the backup?
Time Machine will only show the active backup.
You can hold down the Option key while selecting the Time Machine menu and you will have the option to Browse other Time Machine backups.
Here is some good info on how Time Machine "thinks:" http://pondini.org/OSX/Home.html

Rescue partition erased

Hi Everyone,
Recently, I bought a Lenovo N200 0768-B2G. As I was happy and wanted to test everything, i got my rescue partition deleted. I was testing with a Linux Live CD. Now I would like to re-install the notebook.
When I launched, Create Recovery Media, to create cds, it says "the files needed to create the rescue support is missing".
Can anyone help me???
Thanks
A+
Shafyx

shafyx wrote:
Hi Everyone,
Recently, I bought a Lenovo N200 0768-B2G. As I was happy and wanted to test everything, i got my rescue partition deleted. I was testing with a Linux Live CD. Now I would like to re-install the notebook.
When I launched, Create Recovery Media, to create cds, it says "the files needed to create the rescue support is missing".
Can anyone help me???
Thanks
A+
Shafyx
shafyx, welcome to the forum,
DVP is correct, you need to contact Lenovo and obtain recovery cds.
The "Create Recovery Media" will start, because it is a separate utility, but gathers it's data for the cds from the service partition; if the service partition has been deleted, it has nowhere where it can gather data in order to create the cds.
Andy ______________________________________
Please remember to come back and mark the post that you feel solved your question as the solution, it earns the member + points
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I have macbook mid 2009, with os leopard and I updated it till yosemite now while deleting partition I erased the main hitachi drive , now I have no backups and while switching on it shows folder with question mark,inserting the grey dvd it keep spin

Have macbook mid 2009, with leopard, updated to yosemite, while erasing partition erased hd, dot have backups, powerup shows folder with question mark, inserting grey dvd shows apple and spinning wheel, please help

Clean Install of Snow Leopard
     1. Boot the computer using the Snow Leopard Installer Disc or the Disc 1 that came
         with your computer. Insert the disc into the optical drive and restart the computer.
         After the chime press and hold down the "C" key. Release the key when you see
         a small spinning gear appear below the dark gray Apple logo.
     2. 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 the hard drive entry from the left side list (mfgr.'s ID and drive
         size.) Click on the Partition tab in the DU main window. Set the number of
         partitions to one (1) from the Partitions drop down menu, click on Options button
         and select GUID, click on OK, then set the format type to MacOS Extended
         (Journaled, if supported), then click on the Apply button.
     3. When the formatting has completed quit DU and return to the installer. Proceed
         with the OS X installation and follow the directions included with the installer.
     4. When the installation has completed your computer will Restart into the Setup
         Assistant. Be sure you configure your initial admin account with the exact same
         username and password that you used on your old drive. After you finish Setup
         Assistant will complete the installation after which you will be running a fresh
         install of OS X. You can now begin the update process by opening Software
         Update and installing all recommended updates to bring your installation current.
Download and install Mac OS X 10.6.8 Update Combo v1.1. From here you can upgrade to Yosemite by re-downloading it from the Purchases page in the App Store.

FORMAT WINDOWS 7(64) BY MISTAKEN NOW HOW I RECOVER ERASED DATA WHICH I HAD LOCKED DRIVE BY BIT LOCKER

i'm using windows 7 (64 bit) but experiment to install mac on my PC (i 5-4 GB ddr 3-500sata sea gate).by mistaken its format my whole hard drive which is 500 GB sea gate sata.after this i'm confused and install windows 8.1 and then again i had install windows
7 (64 bit) now after 2 time partition erased i'm trying to recover my data 50 percent data but which drive i had locked with windows 7 bit locker it cant recover any thing I've remember its password.
any one help me to get back my data from this locked drive ?

RB
If the drive was both formatted and bit locked you cannot recover your data.
Wanikiya and Dyami--Team Zigzag

Clean install of Lion. Now I can;t see the partition on a USB external where I did a Time Machine backup. Help?

Howdy.
Ok, wanted to update my daughter's MacBookPro (late 2009 - 2.26ghz - 8GB RAM) I took a new external and partitioned into two GUID partitions. Installed Lion on one, and did a full (and verified) backup on the other. Booted off the external, erased the laptop drive and installed Lion. Works perfectly.
But when I try and access the Time Machine backup, I can't even see the partition. The icon is on the Desktop, the partition is in Finder. When I first instaled it even asked if I wanted to use that partition for Time Machine. But I can't do anything but a full restore, which I obviously do not want.
I tried going into Time Machine itself and when asked if I wanted to "Use Previous Disk" to do TM backups, I said yes. But I could not get the Mac to "inherit" the old backup.
Migration Assistant doesn't see the partition either.
Help?

First I formatted 2 partitions GUID on the external and installed Lion into one of them., and backed up the Macbook (via Time Machine) into the other. I then booted off the external Lion partition, erased the Macbook, installed a fresh Lion.
I then restarted using the new internal Macbook drive. Works perfectly. But now, when I try to use Migration Assistant I cant see the second partition, the one with the Time Machine backup.
I know I can do it manually but actually the computer is with my daughter at college in Arizona and I'm in Connecticut, so I'd rather get to the screen that allows you to restore users and settings only.
Thanks!

Bootcamp partition shows up as grey "disk0s4" in Disk Utility

Hello everyone,
So I am a few days into this tiring and discouraging process of trying to get my iMac back to it's original working state. Here's to hoping for a solution:
Ever since I bought my iMac, I've been running OSX Mountain Lion with Win7 installed through BootCamp, without any problems. I recently wanted to increase my Boot Camp partition size from 80GB to 149GB because I was running low on disk space, and that was the start of many problems to come.
Here's what I tried first:
Make a backup copy of my OSX partition through Disk Utility's "Restore" tab (onto external HD 1)
Make a backup copy of my Windows partition through "Create a system image" in Windows Control Panel (onto external HD 2)
Use WinClone to backup a copy of my Windows partition
Erase Boot Camp partition in Disk Utility
Resize Mac OS partition to max
Create new FAT partition (149 GB)
Restore WinClone backup to the FAT partition (hoping it'll "fill up" the remaining free space)
I don't remember all the details, but all of this led to Windows not being able to boot properly, and then soon after, OS X wouldn't work either. The built-in Recovery HD somehow became unusable and showed up as grey in Disk Utility (too chaotic to remember how). After much trial and error, I was left with the Mac's built in Internet Recovery option, which I used to reinstall OS X Mountain Lion (on top of the existing Mac partition). Afterward, I regained the Recovery HD, and resized the Mac OS X partition to cover over the unusable free space that remained.
After that:
Ran Boot Camp Assistant to start the Windows installation process from scratch.
After the installation finished, I used "System Image Recovery" from a bootable Windows Recovery USB that I created.
Upon restart, Windows would not boot (which was fixed using the bootrec commands within Command Prompt off the USB).
This allowed Windows to boot fine, and it was exactly as it was before this all began.
Now, here are my current problems.
I believe the simplest way to achieve my original goal of extending my Windows partition would be to use Paragon's Camptune X, but upon running it, it tells me it can't find any Bootcamp configuration on my system.
While both OSX and Windows appear on the Startup Manager when I hold down the "option" key (which boot and run just fine), the "BOOTCAMP" partition that I would normally see in Disk Utility (under Macintosh HD) is now listed as "disk0s4", is grey, and "unmounted". It's also listed as MS-DOS (FAT), while it shows up as NTFS within Windows.
The Startup Disk preference pane lists Macintosh HD as the only choice.
I'm exhausted from the past week of repeated backup/reinstallations and trying to make this work. I've done my share of research and reading related forum threads, with no real solution. I am hoping "The hatter" will see this, as he's offered much info/advice on this topic on these boards, but I still haven't been able to resolve this issue.
Thanks for reading, anyone have any ideas?

By using Disk Utility to try to resize your Bootcamp partition you messed up your hard disk. You need to backup all your data from the disk, eraze and format your disk, and reinstall OSx, then if you want a new Bootcamp partition run Bootcamp Assistant.
Next time you want to resize the Bootcamp partition use CampTune, not Disk Utility.

Disk Utility Erase Free Space Option Nonexistant

Have an iMAC 1 GHZ PowerPC G4 256 MB DDR SDRAM OS 10.3.9. According to various google results I should be able to call up Disk Utilities>Partition>Erase>Erase Free Space. Its not there. (Its exactly where it should be on a nearby G5 running 10.5.8.).
It will allow me to erase the entire disk or either of two partitions but the Erase Free Space isn't just grayed out, it is completely missing.
1) The hard drive was partitioned at some point in the past I think to get around some admin thing. One partition has 51 out of 60 GB filled, the other has 12.4 of 16.3 GB filled.
2) Don't ask about the admins, my Entourage has been broken for 9 months - I am not joking.
3) My computer knowledge is spotty - you've been warned.
Help!

Try starting the iMac in Target Disk Mode while attached to one of your newer computers with a firewire cable. This basically makes the iMac an external hard drive. I've not tried this but you should then be able to use a newer version of Disk Utility on that drive.
[How to use FireWire target disk mode|http://support.apple.com/kb/HT1661] includes description of hardware and software requirements.
[What to do if your Mac doesn't enter FireWire Target Disk Mode|http://docs.info.apple.com/article.html?artnum=75414], also read about [Open Firmware Password Protection|http://www.apple.com/support/downloads/openfirmwarepassword.html] which can disable Target Disk Mode.
I'm not a technician but I don't think it "misses" areas, it's just more a matter of covering up what was written there before. Think of it as you write something on a piece of paper, then erase it and write something down in the same space. If you look closely you can see what was written there before. Now erase that again and write something else. It'll be pretty difficult to make out what was written there the very first time. Do that 7 times and it will be very, very, very difficult. Do that 32 times and it will be impossible. However, all that erasing and writing will take its toll on the paper and take a long time. I'd say anything more than a erase once would really have to be justified by very sensitive data. Anybody wanting to recover the data would have to use pretty specialized equipment.

Installing windows 7 with bootcamp on mac pro yosemite 10.10: 'your disk could not be partitioned'

I have been trying to no avail to install windows 7 on my new macbook pro
with bootcamp in yosemite 10.10
i continually get the message 'your disk could not be partitioned', does anyone know how to tackle this? *I am including the screenshot
and when i try to partition my 250GB drive giving 80GB to the windows partition it just errors,
i have tried rebooting and verifying my disk and repairing and there's no progress or change.. any ideas would be greatly appreciated

Hi nicoczyz,
Welcome to the Support Communities! The steps you have taken to troubleshoot the issue of not being able to create a Windows partition are good ones. The resource below provides another possible scenario that may be the issue here. It's not the exact error message as your screen shot and the article references Windows 8, but the troubleshooting steps are still relevant:
Boot Camp: Partition alert message when using Boot Camp Assistant - Apple Support
http://support.apple.com/en-us/HT203913
This symptom may occur if you have partitions on your startup drive in addition to the following:
one OS X partition
one Boot Camp partition
one OS X Recovery partition (normally not visible in Disk Utility)
If Boot Camp Assistant detects a Microsoft Reserved (MSR) or Windows Recovery partition on your hard drive, you may see this message. The Boot Camp Assistant cannot continue until the extra partition is removed.
Microsoft Reserved and Windows Recovery partitions can be identified as unmounted partitions with the name "disk0s3" or "disk0s5" in Disk Utility. To remove these partitions, use OS X Disk Utility.
Important: Deleting the wrong partition can cause data loss. Be sure to back up both your OS X files and Windows files before attempting this procedure.
Open Disk Utility from the Utilities folder.
Click the Partition tab.
Look for an extra partition named “disk0s3" or “disk0s5”. Select this partition so it is highlighted.
Click the Remove Partition button ( - ).
Make sure the partition you selected is noted in the sheet that appears.
Click Remove.
When Disk Utility finishes, close the Disk Utility window to quit the app. The Boot Camp Assistant can now be used to reinstall or update your existing Windows partition.
Set up a Windows partition on your Mac - Apple Support
http://support.apple.com/en-us/HT204009
Before you can install Windows your Mac, you need to create and then format a Windows partition.
Setting up a Windows partition is one of the steps for installing Windows on your Mac. Use Boot Camp Assistant to create the partition, then use the Windows installer to format it.Create the Windows partition
To create the Windows partition, open Boot Camp Assistant and follow the onscreen instructions. Boot Camp Assistant is in the Utilities folder of your Applications folder.
Use only Boot Camp Assistant to create the partition. If you partition with another app and then use Boot Camp Assistant, the drive with the partition could be erased.
Boot Camp Assistant creates the partition only if the drive is formatted as Mac OS Extended (Journaled) and doesn't already have a partition created by Boot Camp Assistant. If Boot Camp Assistant sees other partitions, it may warn you that the startup disk cannot be partitioned.
If you need help determining the best size of the partition, refer to your Windows documentation. For Windows 8, the partition should be at least 30 GB.
If Boot Camp Assistant says that verification failed, repair the drive using Disk Utility. If that doesn't help, back up your drive and reinstall OS X.
The drive you're partitioning must be an internal drive. If you have more than one internal drive and the drive you're partitioning is not in the first drive bay, remove the drives in the lower-numbered bays, then reinstall them after installing Windows. A Fusion Drive is treated as one drive, and the Windows partition is created on the disk drive instead of the flash drive (SSD).
Format the Windows partition
Use the Windows installer to format the Windows partition that Boot Camp Assistant created. When you're asked where to install Windows, select the partition named "BOOTCAMP":
Then click Format to begin formatting the partition using the NTFS file system. If you're installing Windows 7 or Windows 8.0, you won't see the Format option until you click "Drive options (advanced)":
If the installer says that it couldn't create a new partition or locate an existing one, disconnect any Thunderbolt storage devices connected to your Mac. Reconnect them after installing Windows.
If you see “No Boot Disk Attached” when starting up your Mac, the Windows partition probably isn't formatted correctly. Remove the partition, then repeat the previous steps for creating and formatting the partition.
Modify the Windows partition
Remove the partition, change its size, or change its name.
Remove the partition
Use Boot Camp Assistant to safely remove Windows and the Windows partition from your Mac, restoring your startup drive to a single Mac partition. You may want to back up your information first, because removing the partition erases all of the data it contains.
Open Boot Camp Assistant.
Select “Remove Windows 7 or later version," then click Continue.
Do one of the following:
If your Mac has a single internal disk, click Restore.
If your Mac has multiple internal disks, select the Windows disk, select “Restore disk to a single OS X partition,” then click Continue.
Change the size of the partition
It's not possible to change the size of the partition after installing Windows, but you can remove the partition and create a new partition of the correct size. Don't try to resize your partition with Windows or a third-party app.Change the name of the partition
You can rename the Windows partition from within Windows. For instructions, refer to your Windows documentation.
Information about products not manufactured by Apple, or independent websites not controlled or tested by Apple, is provided without recommendation or endorsement. Apple assumes no responsibility with regard to the selection, performance, or use of third-party websites or products. Apple makes no representations regarding third-party website accuracy or reliability. Risks are inherent in the use of the Internet. Contact the vendor for additional information.
Last Modified: Dec 22, 2014
I hope this information helps ....
- Judy

Install from Recovery partition after upgrade from 10.9

Hi all, on my MacBook 13" nov. 2012 I upgraded from Mavericks to Yosemite using the standard upgrade.
After a couple of days I decided to perform a clean install:
- formatted "Macintosh HD Partition"
- rebooted with cmd+R
- reinstalled from recovery partition.
Is this really a clean install or my recovery partition contains pieces of the old Mavericks?
Thanks in advance for answering
Paolo

paolo_italy wrote:
First I upgraded from Mavericks to Yosemite (with no erase). Then I booted from recovery partition, erased Macintosh HD partition and installed Yosemite.
My question is: did I perform a really clean install or to be sure I had to erase the entire disk and recover from the Internet?
Paolo
You performed a clean install of OS X Yosemite.
You were in the Yosemite Recovery HD.
You erased the Macintosh HD which erases the previous OS install, user accounts and data files -- everything! Then you reinstalled JUST OS X Yosemite.

Partition Erase

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