No "Partition" tab in Disk Utility

I want to partition my LaCie external HD, but my version of Disk Utility, in Yosemite, includes only "First Aid, Erase, Restore" tabs; no "Partition." How do I partition my external HD?

You need to select the entire drive and not a partition on it.
(116529)

Similar Messages

  • Partition Tab Missing: Disk Utility

    I've just noticed that the "Partition" tab is missing from Disk Utility.
    Suggested correction?

    Make sure you have a drive selected, at the left in the left column, not a volume, indented below the drive.

  • Partition Tab in Disk Utility is Greyed Out

    Basically I wanted to try out Mac OS X Yosemite, so I created a partition on my hard drive. Now, I am trying to remove this partition, because it is no longer needed, but Disk Utility is simply not allowing me to.
    I heard there may be a way to solve this using Terminal. Is that possible?
    Any answers and/or helpful comments is appreciated in advance. Thank you.

    And, this was from the Internet Recovery utilities window, right? OK, this next suggestion depends on which MBA model you have. Check the link below. If your model came with Lion pre-installed then it is capable of using Internet Recovery. If it came with a late version of Snow Leopard it can be upgraded via a firmware update. You will find this in the link below.
    Computers that can be upgraded to use OS X 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.
    Note: You will need an active Internet connection. I suggest using Ethernet
                if possible because it is three times faster than wireless.
    Once the Utility Menu appears select Disk Utility and click on the Continue button. Now try removing the partition again. If you have the same error, then do the following:
    From the screen's menubar select Terminal from the Utilities menu. Enter the following at the prompt:
         diskutil list
    Press RETURN. You should see a display of your devices. Next enter:
         diskutil unmountDisk force /dev/disk0
    Press RETURN. Now, if this works your internal drive should be unmounted. Return to Disk Utility and try the process of removing the partition.

  • Partitioning 1TB with Disk Utility

    I have 1TB external drive which I want to partition, but I have some questions regarding format, size, compatibility with both Snow Leopard and Windows (eugh, but necessary). Can someone help me out? I have a few gaps.
    _*Main Questions*_
    _*Partition A: for TimeMachine*_
    Format: Should it be Mac OS Extended Journaled...? is that right?
    _*Partition B: for Bootcamp*_
    Format: I don't know. Should it be FAT? or Mac OS Extended?
    Size: I don't know? Can someone recommend?
    _*Partition C: Everything else (Media etc)*_
    Format: I don't know? I need this to be compatible with 10.6 and Windows.
    _*Other questions*_
    a) Do I need to Erase first, re format, then create partition?
    b) What is RAID?
    c) Do I need to change something in Options? There's Master Boot - GUID - Apple Partition Map,
    What do I choose?
    Help.

    Ninda wrote:
    I have 1TB external drive which I want to partition, but I have some questions regarding format, size, compatibility with both Snow Leopard and Windows (eugh, but necessary). Can someone help me out? I have a few gaps.
    _*Main Questions*_
    _*Partition A: for TimeMachine*_
    Format: Should it be Mac OS Extended Journaled...? is that right?
    Yes
    _*Partition B: for Bootcamp*_
    Format: I don't know. Should it be FAT? or Mac OS Extended?
    Size: I don't know? Can someone recommend?
    I would make a bootable clone of my internal disk volume on partition B. The clone will provide a fail safe mechanism for disaster recovery. If you decide to do so, then the partition should be GUID.
    As far as I know, you cannot run Windows from an external drive even if using Boot Camp. I would put Boot Camp/Windows on a partition of your internal drive. When you want to set up you Boot Camp partition, just follow the instructions of the Boot Camp Assistant. Do not format FAT under any conditions. You want to use NTFS.
    _*Partition C: Everything else (Media etc)*_
    Format: I don't know? I need this to be compatible with 10.6 and Windows.
    I would not go this route. You do not want to use FAT. The best approach is to install MacDrive (mediafour.com) on you Windows system. If you do so then the 3rd partition can be Mac OS X extended (journaled), and both you Windows and OS X machines will be able to read and write the partition.
    _*Other questions*_
    a) Do I need to Erase first, re format, then create partition?
    Using Disk Utility, create 1 partition with partition table GUID. After doing so, your partition should be formatted Mac OS X extended (journaled). If it isn't, then format (i.e., erase) it this way. Change your partition to 3 GUID. Selecting the sizes you want.
    b) What is RAID?
    Of no importance to you
    c) Do I need to change something in Options? There's Master Boot - GUID - Apple Partition Map,
    What do I choose?
    See above
    Help.

  • How do I undo BC Partition repair in disk utility?

    Here's the summary:
    8-core MacPro2,1 running 10.6.8, Paragon NTFS for Mac, Bootcamp Win7.
    4 internal HDD drives: two 1.5TBs for data, one 1TB for MacOS, one 1.5TB for Win7 bootcamp.
    I mostly use the Mac side for music production (but rarely), and the Win side for business and everything else. Scores and scores of Win apps installed over the years. [4 monitor system], well over 500K files on the drive.
    I just backed up the data from the two data-only drives, and made a bootable clone of the MacOS drive (SuperDuper). I have never successfully been able to clone the Win7 Bootcamp NTFS drive (even with Winclone back in 2009) because of volume sizes (or something). I decided to try again, from WITHIN Windows this time (all other attempts were from the Mac OS side).
    I bought, downloaded, and installed Acronis True image from within the Win7 bootcamp system. [I obviously did not know that it was gonna modify my MBR, and I had no idea at the time that the GPT and MBR areas were somehow 'mingled' on a bootcamp drive.]
    So, when I performed the Acronis-requested reboot (my default boot is into the Bootcamp/Win7 drive), it failed to boot and requested some Windows recovery media or something. I was concerned that anything i put in the DVD drive would sabotage my priceless (in retrospect) stable/optimized Win7 bootcamp system. So, i just hard-powered down the Mac and tried to restart.
    I did the Alt/option key, and i was presented with the Mac or Win drive icons. I selected Win, and then I got a different boot error message--'no MBR found'.
    But this time i realized that Acronis had stepped where it shouldn't have, and I figured the Mac side could fix the boot problem (maybe with bootcamp assistant or something).
    If i had stopped THERE, and searched the forums i could have found how to fix THAT problem--that has been answered tons of times…
    But, instead, i went to Disk Utility and asked it to repair my Bootcamp partition (I have Paragon NTFS and it has worked for years, and so I did not have a reason to doubt Disk Utility's ability to Repair an NTFS volume--not that i have tried it before, of course).
    Disk Utility repair ran for about 10-15 minutes and said it fixed about 10-20 things.
    The drive information (in the side bar and below) still had the BOOTCAMP partition, reported that it was NTFS, said that there was 308 GB still available of the 1.5TB drive, and that it contained 1.19TB 'used'. Looked normal to me.
    I closed Disk Utility and then opened a Finder window to see if DU left any 'artifacts' of its 'fixes' on the BOOTCAMP partition, and all the files were gone! Even though DU said it had 1.19TB 'used', all of my files are gone. [I rebooted also, to verify that it was not some 'delayed reporting' issue.]
    When I enable 'hidden files' to show, what I get on the Bootcamp partition are these three entries:
    .DS_Store (16KB), .fseventsd folder (with a 1KB UUID file inside it), and a .Trashes folder with zero KB.
    At this point, I panic and assume the position of despair. There is no 'undo' key for the D/U that I can find. I do an orderly shut down of the system, physically remove the Win7 BC drive, and make/verify a sector-by-sector clone of the drive (on a Win7 laptop, using Acronis--22 hours).
    In Win7 Disk Management, the GPT partition (on the original drive) shows up and the BOOTCAMP partition shows up--with the proper size--but windows does NOT recognize the partition as being NTFS. It reports it as being RAW and 'urges' me to format it (yeah, right…).
    So, I place the sector-by-sector duplicate back into the Mac, boot up (only the Mac OS is given as an option), and am ready to 'work on' recovering the Win7 BC partition (if possible).
    I am avoiding trying to fix the booting problem, because recovery of the 1.2TB of a working system is much more critical for me.
    The clone HDD reports the same in DU, except now the GPT partition shows up as greyed-out 'disk1s1', right above the "BOOTCAMP" partition in the sidebar. [I understand from researching this that disk1s1 is somehow related to the bootloader for BC?]
    I used the demo version of Data Rescue 3 to scan for recoverable files from the drive, but it doesn't even report the .files. (I am running the deep scan now, but will take about another 9 hours to complete that).
    Has anybody got any suggestions on how to reclaim this partition and its system?
    Here are a couple of other details from diagnostic tools:
    Model Name:    Mac Pro
      Model Identifier:    MacPro2,1
      Processor Name:    Quad-Core Intel Xeon
      Processor Speed:    3 GHz
      Number Of Processors:    2
      Total Number Of Cores:    8
      L2 Cache (per processor):    8 MB
      Memory:    13 GB
      Bus Speed:    1.33 GHz
      Boot ROM Version:    MP21.007F.B06
    newmac:~ gmmx2$ sudo gpt -r show disk1
           start        size  index  contents
               0           1         PMBR
               1           1         Pri GPT header
               2          32         Pri GPT table
              34      262144      1  GPT part - E3C9E316-0B5C-4DB8-817D-F92DF00215AE
          262178        2014        
          264192      409600      2  GPT part - C12A7328-F81F-11D2-BA4B-00A0C93EC93B
          673792  2929602560      3  GPT part - EBD0A0A2-B9E5-4433-87C0-68B6B72699C7
      2930276352         783        
      2930277135          32         Sec GPT table
      2930277167           1         Sec GPT header
    newmac:~ gmmx2$ diskutil list
    /dev/disk0
       #:                       TYPE NAME                    SIZE       IDENTIFIER
       0:      GUID_partition_scheme                        *1.0 TB     disk0
       1:                        EFI                         209.7 MB   disk0s1
       2:                  Apple_HFS Macintosh HD            999.9 GB   disk0s2
    /dev/disk1
       #:                       TYPE NAME                    SIZE       IDENTIFIER
       0:      GUID_partition_scheme                        *1.5 TB     disk1
       1:         Microsoft Reserved                         134.2 MB   disk1s1
       2:                        EFI                         209.7 MB   disk1s2
       3:       Microsoft Basic Data BOOTCAMP               1.5 TB     disk1s3
    /dev/disk2
       #:                       TYPE NAME                    SIZE       IDENTIFIER
       0:      GUID_partition_scheme                        *1.5 TB     disk2
       1:                        EFI                         209.7 MB   disk2s1
       2:                  Apple_HFS D3                      750.0 GB   disk2s2
       3:       Microsoft Basic Data DATA3                  749.9 GB   disk2s3
    /dev/disk3
       #:                       TYPE NAME                    SIZE       IDENTIFIER
       0:     FDisk_partition_scheme                        *1.5 TB     disk3
       1:               Windows_NTFS SSDSUB                 1.5 TB     disk3s1
    [Disk 1 is obviously the BC one]
    newmac:~ gmmx2$ sudo fdisk /dev/disk1
    Password:
    Disk: /dev/disk1    geometry: -5415437/4/63 [-1364690128 sectors]
    Signature: 0xAA55
             Starting       Ending
    #: id  cyl  hd sec -  cyl  hd sec [     start -       size]
    1: EE    0   0   2 - 1023 254  63 [         1 - -1364690129] <Unknown ID>
    2: 00    0   0   0 -    0   0   0 [         0 -          0] unused     
    3: 00    0   0   0 -    0   0   0 [         0 -          0] unused     
    4: 00    0   0   0 -    0   0   0 [         0 -          0] unused     
    I cannot be the only one who has much such a catastrophic error, so I am hoping that there is something I have overlooked (being only a part-time Mac user) or there is some utility somewhere which can fix this--
    Or if you need more data, let me know...
    thank you for your time--gmm

    Additional information: I found the DU Repair log for that session, in case it helps:
    2013-01-28 04:31:00 -0700: Disk Utility started.
    2013-01-28 04:31:30 -0700: Verify and Repair volume “BOOTCAMP2013-01-28 04:31:30 -0700: Starting repair tool:
    2013-01-28 04:31:30 -0700: Verifying files...                                                            
    2013-01-28 04:31:57 -0700: Adjusting instance tags to prevent rollover on file 0x606f0.                  
    2013-01-28 04:31:57 -0700: Adjusting instance tags to prevent rollover on file 0x606f2.                  
    2013-01-28 04:31:57 -0700: Adjusting instance tags to prevent rollover on file 0x606f4.                  
    2013-01-28 04:32:01 -0700: Files verification completed.                                                 
    2013-01-28 04:32:01 -0700: Verifying meta files...                                                       
    2013-01-28 04:32:01 -0700: Meta files verification completed.                                            
    2013-01-28 04:32:01 -0700: Veryfing $AttrDef.                                                            
    2013-01-28 04:32:01 -0700: Veryfing $Boot.                                                               
    2013-01-28 04:32:01 -0700: Verifying $UpCase.                                                            
    2013-01-28 04:32:01 -0700: Correcting $UpCase data.                                                      
    2013-01-28 04:32:01 -0700: Verifying $LogFile.                                                           
    2013-01-28 04:32:01 -0700: Verifying $Volume.                                                            
    2013-01-28 04:32:02 -0700: Verifying files with EAs...                                                   
    2013-01-28 04:32:02 -0700: EAs verification completed.                                                   
    2013-01-28 04:32:02 -0700: Verifying folders...                                                          
    2013-01-28 04:41:54 -0700: Folders verification completed.                                               
    2013-01-28 04:41:54 -0700: Minor inconsistencies are detected on the volume.                             
    2013-01-28 04:41:54 -0700: Creating root directory                                                       
    2013-01-28 04:41:54 -0700: Verifying security descriptors...                                             
    2013-01-28 04:41:54 -0700: Clearing invalid security descriptor 0x25e                                    
    2013-01-28 04:41:54 -0700: Clearing invalid security descriptor 0x260                                    
    2013-01-28 04:41:54 -0700: Clearing invalid security descriptor 0x797                                    
    2013-01-28 04:41:54 -0700: Clearing invalid security descriptor 0x1538                                   
    2013-01-28 04:41:54 -0700: Deleting orphan $Secure::$SII entry 0x25e                                     
    2013-01-28 04:41:54 -0700: Deleting orphan $Secure::$SII entry 0x260                                     
    2013-01-28 04:41:54 -0700: Deleting orphan $Secure::$SII entry 0x797                                     
    2013-01-28 04:41:54 -0700: Deleting orphan $Secure::$SII entry 0x1538                                    
    2013-01-28 04:41:54 -0700: Deleting orphan $Secure::$SDH entry Id=0x797                                  
    2013-01-28 04:41:54 -0700: Deleting orphan $Secure::$SDH entry Id=0x25e                                  
    2013-01-28 04:41:55 -0700: Deleting orphan $Secure::$SDH entry Id=0x260                                  
    2013-01-28 04:41:55 -0700: Deleting orphan $Secure::$SDH entry Id=0x1538                                 
    2013-01-28 04:41:55 -0700: Verifying files security...                                                   
    2013-01-28 04:41:55 -0700: Record 0x97c contains invalid security Id (0x260)                             
    2013-01-28 04:41:55 -0700: Record 0x99b contains invalid security Id (0x260)                             
    2013-01-28 04:41:55 -0700: Record 0xb88 contains invalid security Id (0x260)                             
    2013-01-28 04:41:55 -0700: Record 0xb91 contains invalid security Id (0x260)                             
    2013-01-28 04:41:55 -0700: Record 0xb92 contains invalid security Id (0x260)                             
    2013-01-28 04:41:55 -0700: Record 0x5633 contains invalid security Id (0x260)                            
    2013-01-28 04:41:55 -0700: Record 0x5635 contains invalid security Id (0x260)                            
    2013-01-28 04:41:55 -0700: Record 0x5637 contains invalid security Id (0x260)                            
    2013-01-28 04:41:57 -0700: Record 0xe1d4 contains invalid security Id (0x25e)                            
    2013-01-28 04:41:57 -0700: Record 0xe1d5 contains invalid security Id (0x25e)                            
    2013-01-28 04:41:57 -0700: Record 0xe1d6 contains invalid security Id (0x260)                            
    2013-01-28 04:41:58 -0700: Record 0x111c9 contains invalid security Id (0x260)                           
    2013-01-28 04:41:58 -0700: Record 0x111ca contains invalid security Id (0x260)                           
    2013-01-28 04:41:58 -0700: Record 0x111cb contains invalid security Id (0x260)                           
    2013-01-28 04:41:58 -0700: Record 0x111dc contains invalid security Id (0x260)                           
    2013-01-28 04:41:58 -0700: Record 0x11285 contains invalid security Id (0x260)                           
    2013-01-28 04:41:58 -0700: Record 0x11297 contains invalid security Id (0x260)                           
    2013-01-28 04:41:58 -0700: Record 0x113c4 contains invalid security Id (0x260)                           
    2013-01-28 04:41:58 -0700: Record 0x113c5 contains invalid security Id (0x260)                           
    2013-01-28 04:41:58 -0700: Record 0x12528 contains invalid security Id (0x260)                           
    2013-01-28 04:42:00 -0700: Record 0x1cfe2 contains invalid security Id (0x260)                           
    2013-01-28 04:42:00 -0700: Record 0x1dce1 contains invalid security Id (0x260)                           
    2013-01-28 04:42:00 -0700: Record 0x1f6a8 contains invalid security Id (0x260)                           
    2013-01-28 04:42:00 -0700: Record 0x1f6a9 contains invalid security Id (0x260)                           
    2013-01-28 04:42:00 -0700: Record 0x1f6c4 contains invalid security Id (0x260)                           
    2013-01-28 04:42:00 -0700: Record 0x21d57 contains invalid security Id (0x797)                           
    2013-01-28 04:42:03 -0700: Record 0x3220d contains invalid security Id (0x260)                           
    2013-01-28 04:42:06 -0700: Record 0x4bc2a contains invalid security Id (0x260)                           
    2013-01-28 04:42:10 -0700: Record 0x64ff9 contains invalid security Id (0x1538)                          
    2013-01-28 04:42:11 -0700: Can't read $SDS                                                               
    2013-01-28 04:42:12 -0700: Security verification completed                                               
    2013-01-28 04:42:12 -0700: Verifying $MFT.                                                               
    2013-01-28 04:42:12 -0700: Verifying $MFTMirr.                                                           
    2013-01-28 04:42:12 -0700: Verifying $Bitmap.                                                            
    2013-01-28 04:42:18 -0700: Volume repair complete.
    2013-01-28 04:42:18 -0700: Updating boot support partitions for the volume as required.
    2013-01-28 04:42:18 -0700: Repair tool completed: 2013-01-28 04:42:18 -0700:
    2013-01-28 04:42:18 -0700:

  • My partition menu in Disk Utility is greyed out in recovery partition

    So upgraded to yosemite and after a while decided that i would do a clean install of it because it didn't update the recover partition and i could no longer boot into Ubuntu partition. So i made my bootable drive and booted into it. I was met with:
    When i clicked on the hard drive in the sidebar that it was only 300gbs, which is the size of my os x partition.
    I then went to the partition menu and i could not change anything there. I can't resize anything or repartition anything.
    I've tried to do multiple things in terminal from recovery and bootable disk but to no avail. It still won't work. The thing is that when i type diskutil list into terminal i get
    /dev/disk0
       #:                       TYPE NAME                    SIZE       IDENTIFIER
       0:      GUID_partition_scheme                        *500.1 GB   disk0
       1:                        EFI EFI                     209.7 MB   disk0s1
       2:          Apple_CoreStorage                         300.0 GB   disk0s2
       3:                 Apple_Boot Recovery HD             650.0 MB   disk0s3
       4:       Microsoft Basic Data                         1.0 MB     disk0s4
       5: 0FC63DAF-8483-4772-8E79-3D69D8477DE4               195.0 GB   disk0s5
       6:                 Linux Swap                         4.2 GB     disk0s6
    /dev/disk1
       #:                       TYPE NAME                    SIZE       IDENTIFIER
       0:                  Apple_HFS Macintosh HD           *299.6 GB   disk1
    /dev/disk2
       #:                       TYPE NAME                    SIZE       IDENTIFIER
       0:      GUID_partition_scheme                        *500.1 GB   disk2
       1:                        EFI EFI                     209.7 MB   disk2s1
       2:                  Apple_HFS MacBook Pro Back Up     398.2 GB   disk2s2
       3:                 Apple_Boot Recovery HD             650.0 MB   disk2s3
       4:                  Apple_HFS Back up of files        100.9 GB   disk2s4
    /dev/disk0 is the internal hard drive that i want to reformat, /dev/disk1 i don't know what that is. It could be an internal thing in the drive? And /dev/disk2 is my external hard drive that is running mavericks that i writing this on.
    I've tried resetting PRAM and SMC but that didn't help.
    Didn't know if reinstalling the OS would help?
    What i want to get is to reformat /dev/disk0 so that i have a 500gb hard drive that i can then do a clean install of yosemite on and then possibly make an ubuntu partition later. PLEASE HELP!!!

    And, this was from the Internet Recovery utilities window, right? OK, this next suggestion depends on which MBA model you have. Check the link below. If your model came with Lion pre-installed then it is capable of using Internet Recovery. If it came with a late version of Snow Leopard it can be upgraded via a firmware update. You will find this in the link below.
    Computers that can be upgraded to use OS X 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.
    Note: You will need an active Internet connection. I suggest using Ethernet
                if possible because it is three times faster than wireless.
    Once the Utility Menu appears select Disk Utility and click on the Continue button. Now try removing the partition again. If you have the same error, then do the following:
    From the screen's menubar select Terminal from the Utilities menu. Enter the following at the prompt:
         diskutil list
    Press RETURN. You should see a display of your devices. Next enter:
         diskutil unmountDisk force /dev/disk0
    Press RETURN. Now, if this works your internal drive should be unmounted. Return to Disk Utility and try the process of removing the partition.

  • How to get rid of hidden partitions display in Disk Utility?

    Running Snow Leopard I used the Terminal (defaults write com.apple.DiskUtility DUDebugMenuEnabled 1) to enable the Disk Utility Debug Menu. I then turned on the Show Every Partition so I could see the hidden partitions (but grayed out) in the disk/volume list. I then turned off Show Every Partition and they became hidden again.  I disabled the Debug Menu using the Terminal (defaults write com.apple.DiskUtility DUDebugMenuEnabled 0). The Debug menu went away, but the hidden partitions still show up again after quitting and restarting DU. Rebooting computer doesn't help either.
    It appears that display of all partitions is permanent. Does anyone have ideas on what to do to get back to the default display?

    I stumbled on the answer. When I just quit Disk Utility the hidden partitions come back on restarting DU. If I select Close from the File menu, the display of the hidden partitions goes away and doesn't come back after quitting and restarting DU.

  • No partition button in Disk Utility

    Scratchin my head a bit, I am booted from an external FW drive in Tiger and wanted to reformat and partition an internal drive on a G3 tower but I do not see a partition button in 10.5 Disk Utility, I erased the vol and formatted as exended but cannot seem to get to partition, what am I doing wrong?

    Glad you got it sorted out.
    This old Mac user has been around the block for years and it sometimes still misses the "obvious".
    GUI's change but our old brains still process the same old way.

  • No partition option in disk utility

    I'm using 10.4.11 and Disk Utility 10.5.6 and see no "Partition" option in the DU menu. The DU version on the Tiger install disk is 10.5
    Greg

    As brody cryptically suggests - you can't format the drive you have booted with.
    Got to boot with another drive or the install CD/DVD.
    Also, to partition, you furst have to format (erase) the disk.
    Also suggest you consider downloading the OS X 10.4.11 combo update

  • Viewing disk partitions made using Disk Utility in Windows

    So, I took a USB external hard drive and partitioned it into two volumes using Disk Utility. I made sure to format them in MS-DOS format so they are FAT16 and can be recognized by Windows. I then took the hard drive and plugged it into my Windows computer. The first partition showed up just fine in my F: drive, but I'm not sure where the second partition is. When I plug it into my Mac, both volumes appear on my Desktop, but only the first one shows up in the Computer folder of my Windows computer.
    Any help would be appreciated.

    What does it look like in Windows Disk Management?
    Click Start (if you're on XP then click run) and type "diskmgmt.msc" without the quotes (on XP click OK, anything after XP click on the program), then in the bottom window (where it says Disk 0 Basic disk etc) find your external drive, what do the partitions look like?
    It might be that windows isn't mounting that partition for some reason.

  • Partitioning drivs using Disk Utility acts weird

    Ok, i originally had 3 partitions, the original, a 1GB one for School Work, and a 4.5GB one for Parallels desktop things (So if windows get a virus it don't break my mac).
    I Later realized that parallels Desktop had made there own boot disks which where not in the partition, they where big so i moved everything on the partition to my desktop and deleted the partition. I then when to make a 17.5GB partition (I have 40Gb of free space) and it did it for a white then told me it failed. Ive tried it several times, and whats even more odd, is that in Disk Utility t says my Macintosh HDD is 231gb but on my desktop it says its 226Gb.
    Im not sure whats going on so could somebody please help?

    Last login: Thu Apr 10 18:03:08 on console
    wr-130-64-184-253:~ betsyk$ diskutil list
    /dev/disk0
       #:                       TYPE NAME                    SIZE       IDENTIFIER
       0:      GUID_partition_scheme                        *320.1 GB   disk0
       1:                        EFI EFI                     209.7 MB   disk0s1
       2:                  Apple_HFS Macintosh HD            319.2 GB   disk0s2
       3:                 Apple_Boot Recovery HD             650.0 MB   disk0s3
    wr-130-64-184-253:~ betsyk$ diskutil cs list
    No CoreStorage logical volume groups found
    wr-130-64-184-253:~ betsyk$ mount
    /dev/disk0s2 on / (hfs, local, journaled)
    devfs on /dev (devfs, local, nobrowse)
    map -hosts on /net (autofs, nosuid, automounted, nobrowse)
    map auto_home on /home (autofs, automounted, nobrowse)
    wr-130-64-184-253:~ betsyk$ df -m /
    Filesystem   1M-blocks   Used Available Capacity  iused   ifree %iused  Mounted on
    /dev/disk0s2    304425 274476     29698    91% 70329971 7602931   90%   /
    wr-130-64-184-253:~ betsykirtland$

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