Disk Utility - Accidently Removed Partition

Hi,
I had booted into a copy of leopard on an external disk.
Whilst in disk utility, I was trying to create a new partition (on my Macbook's hard disk). I subsequently accidently deleted the partition/volume on my laptops' hard drive.
Can anyone recommend any recovery options?
Thank You

roshanc wrote:
Cheers V.K.
Data recovery should be easy and straight forward because I didn't format/erase it and none of the data is corrupt.
yes, you did - you deleted the partition.
Just to confirm there is no way to just rebuild some sort of file which lets the system now that there is an intact partition there?
no, there isn't. but as you say the data recovery in your case should work well and it should recover everything because you didn't overwrite the dat with anything new.
Message was edited by: V.K.

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Hi people. Would be glad of an answer and any comments on this.
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My preferred plan is to get an external Firewire 400 drive, make 3 partitions on it, and do the Disk Utility 'Restore' for the 3 respective Macs. That way it's not only a backup, but a bootable solution if one of the machines dies.
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Hi, Daniel.
You wrote: "Question: Will disk utility allow a partition, either on a firewire drive or network drive, to be the destination for a 'restore'? Or will it only recognise whole volumes? "Disk Utility will recognize a volume (partition) on a FireWire drive as the destination for a Restore.
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Good luck!
Dr. Smoke
Author: Troubleshooting Mac® OS X
Note: The information provided in the link(s) above is freely available. However, because I own The X Lab™, a commercial Web site to which some of these links point, the Apple Discussions Terms of Use require I include the following disclosure statement with this post:
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11
12
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Kappy wrote:
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Disk Utility initialized wrong partition!

My external HDD has splitted into two partition:
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2012-11-05 20:10:16 +0100: Utility Disco avviata.
2012-11-05 20:10:51 +0100: Preparo l'inizializzazione : “Bucket”
2012-11-05 20:10:51 +0100:           Schema partizione: Mappa partizione Apple
2012-11-05 20:10:51 +0100:           1 volume sarà inizializzato
2012-11-05 20:10:51 +0100:                     Nome                    : “Bucket”
2012-11-05 20:10:51 +0100:                     Dimensioni                    : 349,23 GB
2012-11-05 20:10:51 +0100:                     File system          : Mac OS esteso (Journaled)
2012-11-05 20:10:51 +0100: Disattivo disco
2012-11-05 20:10:57 +0100: Inizializzo
2012-11-05 20:11:16 +0100: Initialized /dev/rdisk1s3 as a 605 GB HFS Plus volume with a 57344k journal
2012-11-05 20:11:16 +0100: Attivo disco
2012-11-05 20:11:17 +0100: Inizializzazione riuscita.
2012-11-05 20:11:17 +0100:
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Using Disk Utility From Recovery Partition

Is there an advantage to repairing permissions after booting into Recovery disk? (Hold Option key as restart) I realize that Repair disk will be available if needed & it is not available when using Disk Utility from Mac HD partition.

Thanks!
I thought that was the case but I had read multiple accounts of people with slow Macs after upgrading to Mavericks, running repair disk permissions from recovery disk to fix the problem. I wondered why not just run repair permissions w/o restarting into recovery disk. Then they can also run verify disk, if they wish & only if there is a problem with the disk would they need to boot to recovery disk in order to run repair disk.

Disk Utility -- Smallest (minimum) partition size

I viewed an earlier discussion on this topic that was answered incorrectly, but I couldn't add this information to it because it had already been archived. However, I was unable to find it anywhere else on the web, so I thought it important to get on the record.
Disk Utility in Leopard DOES enforce a minimum partition size. It is 1GB.
This is documented in the Apple Service Training course "Leopard Tools and Techniques."

V.K. wrote:
it looks like DU will not allow you to create a partition smaller than one tenth of the disk size.
when i do it on a 200GB drive the smallest size it let's me make is 20Gb, and for a 500GB drive it's 50GB.
I guess that's a safeguard against creating too many partitions.
Message was edited by: V.K.
I thought so. Like most filesystems, all the information must be stored in the bootsector or whatever it's called with BSD, and the total number of files is related to the sizes and total numbers of partitions, so like FAT32 or even NTFS, HFS has it's practical and theoretical limits.
I believe HFS has two bootrecords or equivalents, one for backup and this adds to the storage space issue.
Going back to the old 1.44MB floppies, the unformatted size was over 1.7 MB and Norton and MS took advantage of that, but not all disk readers were happy with what they did. MS once shipped Windows on a set of 1.7 MB floppies. Of course this was BC (before CDs).

Disk Utility fails to partition

This is what it says:
Partition failed with the error:
Could not modify partition map because filesystem verification failed

Run disk utility on your hard drive to repair it also repair permissions, then give it a try.

Disk utility fails to partition - restarting the compuyter is required

I would appreciate your help-I have tried to find a topic with the same problem but could not.
I want to partition my hard drive in order to have a second partition for time machine. I get an error message, saying that I have to press the power button for three seconds etc to restart the machine. And of course when I come back there is no partition.
So, now I try with the installation disk, and use the disk utility, I repair and verify the hard drive, and I try to partition it. After about 10 minutes, I get the same error message, having again to restart the MacBook. So, what´s wrong?
Any suggestions would be highly appreciated.
Thanks

Extended Hard Drive Preparation
1. Open Disk Utility in your Utilities folder. If you need to reformat your startup volume, then you must boot from your OS X 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 Installer menu (Utilities menu for Tiger or Leopard.)
2. 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.
3. Click on the Options button, set the partition scheme to GUID (only required for Intel Macs) then click on the OK button. Set the number of partitions from the dropdown menu. Set the format type to Mac OS Extended (Journaled.) Click on the Partition button and wait until the volume(s) mount on the Desktop.
4. 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.
5. 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.
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Disk Utility - Accidently Removed Partition

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