Hd partition won't unmount

I have a MacBook pro that I am trying to install mountain lion on.  Long story short it tells me I have errors on my hard drive that need fixing first.  I can now only reboot to the os x install/time machine back up /disc utility.   I don't have a back up so I'm trying to format my partition but it can't do that because it can't unmount the drive.  I'm stuck as to what my options are next?  Can some one point the way?

Have you tried verifying and repairing the drive using Disk Utility? Whenever you install (or attempt to install) a new version of OS X, the installation application checks the reliability of your internal drive (or whichever drive you're installing the OS on). It seems as if your drive failed somewhere along the way. If you can repair it using Disk Utility, all should be well. If not, you may have to look at purchasing and installing a new hard drive.
I don't mean to come off as reprimanding you, but you've now discovered why backups are essential for any computer. I've two different disks that I use for Time Machine backups - redundancy is key.
Clinton

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  • OS X and Windows partitions won't appear

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  • Lacie won't unmount

    Greetings Gurus,
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    It's not backed up yet...I'll do that before running DiskWarrior
    I'm not convinced what the issue is. I now am unable to unmount any external HDs (all FW) from my G5.
    Jim, Disk Utility is not giving me the option to 'disable journaling'.
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    Kenneth, I'm the only user/admin...not seeing an issue there. Maybe I'm missing something from your suggestion. I simply boot up as I always do.
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    http://www.macworld.co.uk/forums/msgs.cfm?msg=80013&forum=4
    http://www.shirt-pocket.com/forums/archive/index.php/t-1572.html
    http://discussions.apple.com/thread.jspa?messageID=3651281&#3651281
    http://www.thexlab.com/faqs/stopspotlightindex.html
    http://docs.info.apple.com/article.html?artnum=301562
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    K

  • RAID won't unmount...can't repair

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    Really, how toasted can it be when it all works flawlessly
    until reboot? THis really bothers me....
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  • After Lion upgrade Windows partition won't mount

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    Never a good idea to go for years with the same drive and new OS generations and not reformat to implement new changes in partitioning.
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    Installing Lion on an external hard drive would have saved you.
    Windows is now +1 partition ID.
    Windows 8 RC will be out in a couple weeks for public for free.
    Asked on Parallels community....
    Do you have latest Lion version of Parallels?
    Try editing BCD with Windows DVD/CD.
    No it is not an NTFS issue.
    Lion added a new recovery partition that bumped Windows from #N to N + 1 is all.
    Apple's GPT changed a number of times since 10.5.x too.
    Bad sectors that occur on a drive can't be mapped out if they are part of the hidden partitions or without losing data (usually) and Lion uses and insures that features that were 'optional' or "for future use" were implemented and changed.
    Windows SP sounds like Windows 7 SP1 or in your case I guess XP SP3 but isn't clear until you get to "upgrade to Wiindows 7" and yes I would upgrade to Windows 8 RC (free) or 7 64-bit System Builder ($99).

  • Disk Partition Won't Mount

    My hard drive is partitioned. [I'm sure that this isn't a physical problem with my hard drive, because my hard drive has been replaced.]
    I have a partition that won't show up on the desktop. When I run Disk Utilities, it shows the drive, but says it is unmounted. I repair the partition and try to 'mount' it. I press the Mount button and nothing happens.
    [I had this problem on the old drive, too. The only suggestion I got was not to partition into six partitions, although my previous machines had no problem with six partitions.]
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    iMac G5   Mac OS X (10.3.9)  

    Hi ottertree;
    If you are using Norton Disk Doctor on a disk with OS X on it, you are living dangerous. NDD has been know to repair disk so that are no longer usable. Norton corrupted my disk for me so I remove everything from Symantec from my system to prevent that from happening again.
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  • TM disk needs repair but won't unmount.

    Hi,
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    Magicpony wrote:
    Hi,
    I've been having problems with this TM disk since new but I can't work out what to do. The disk is a Seagate 1.5TB with my MacPro backed up to it and a sparse image on it as my MacBook backup.
    If possible, you should partition the drive, so the MacPro's backups are in their own, exclusive space. If you ever want or have to delete them, it will be extremely difficult and take a very long time. See #4 in the Frequently Asked Questions *User Tip,* also at the top of this forum.
    Other drives in this enclosure (SOHO Tank, Oxford chip) work and unmount OK.
    Try repairing it from the copy of Disk Utility on your Install disc. (Boot up from it, select your language, then on the next screen select Utilities from the menubar, then +Disk Utility.)+
    Also, occasionally when I go into TM via the TM icon in the dock, I only see backups up to the day before yesterday in the timeline at the side. If I cancel TM and relaunch I get the full set in the sidebar (yesterday and hourlies for today).
    Try the things in #E4 of the Time Machine - Troubleshooting *User Tip,* also at the top of this forum.
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    Last login: Wed Apr  8 20:03:52 on console
    iMac:~ arashsahba$ diskutil list
    /dev/disk0
       #:                       TYPE NAME                    SIZE       IDENTIFIER
       0:      GUID_partition_scheme                        *121.3 GB   disk0
       1:                        EFI EFI                     209.7 MB   disk0s1
       2:          Apple_CoreStorage                         121.0 GB   disk0s2
       3:                 Apple_Boot Boot OS X               134.2 MB   disk0s3
    /dev/disk1
       #:                       TYPE NAME                    SIZE       IDENTIFIER
       0:      GUID_partition_scheme                        *1.0 TB     disk1
       1:                        EFI EFI                     209.7 MB   disk1s1
       2:          Apple_CoreStorage                         898.9 GB   disk1s2
       3:                 Apple_Boot Recovery HD             650.0 MB   disk1s3
       4:       Microsoft Basic Data                         100.5 GB   disk1s4
    /dev/disk2
       #:                       TYPE NAME                    SIZE       IDENTIFIER
       0:                  Apple_HFS Macintosh HD           *1.0 TB     disk2
                                     Logical Volume on disk0s2, disk1s2
                                     51129D2B-BB20-4415-9620-8517A8EC8ADC
                                     Unencrypted Fusion Drive
    /dev/disk3
       #:                       TYPE NAME                    SIZE       IDENTIFIER
       0:     FDisk_partition_scheme                        *8.0 GB     disk3
       1:                 DOS_FAT_32 WININSTALL              8.0 GB     disk3s1
    iMac:~ arashsahba$ diskutil cs list
    CoreStorage logical volume groups (1 found)
    |
    +-- Logical Volume Group 663F07EF-1F60-4CDB-AA72-5D3EA183E579
        =========================================================
        Name:         Internal Drive
        Status:       Online
        Size:         1019855495168 B (1.0 TB)
        Free Space:   245760 B (245.8 KB)
        |
        +-< Physical Volume EC85191A-14F7-4871-AB96-24D19B592A6D
        |   ----------------------------------------------------
        |   Index:    0
        |   Disk:     disk0s2
        |   Status:   Online
        |   Size:     120988852224 B (121.0 GB)
        |
        +-< Physical Volume B46EAAAC-84A7-46E5-8375-E94692C4A837
        |   ----------------------------------------------------
        |   Index:    1
        |   Disk:     disk1s2
        |   Status:   Online
        |   Size:     898866642944 B (898.9 GB)
        |
        +-> Logical Volume Family B176540C-DB00-4534-B7DB-F35881AB28E6
            Encryption Status:       Unlocked
            Encryption Type:         None
            Conversion Status:       NoConversion
            Conversion Direction:    -none-
            Has Encrypted Extents:   No
            Fully Secure:            No
            Passphrase Required:     No
            |
            +-> Logical Volume 51129D2B-BB20-4415-9620-8517A8EC8ADC
                Disk:                  disk2
                Status:                Online
                Size (Total):          1013999992832 B (1.0 TB)
                Conversion Progress:   -none-
                Revertible:            No
                LV Name:               Macintosh HD
                Volume Name:           Macintosh HD
                Content Hint:          Apple_HFS
    iMac:~ arashsahba$ sudo gpt -vv -r show /dev/disk0
    WARNING: Improper use of the sudo command could lead to data loss
    or the deletion of important system files. Please double-check your
    typing when using sudo. Type "man sudo" for more information.
    To proceed, enter your password, or type Ctrl-C to abort.
    Password:
    gpt show: /dev/disk0: mediasize=121332826112; sectorsize=512; blocks=236978176
    gpt show: /dev/disk0: PMBR at sector 0
    gpt show: /dev/disk0: Pri GPT at sector 1
    gpt show: /dev/disk0: Sec GPT at sector 236978175
          start       size  index  contents
              0          1         PMBR
              1          1         Pri GPT header
              2         32         Pri GPT table
             34          6        
             40     409600      1  GPT part - C12A7328-F81F-11D2-BA4B-00A0C93EC93B
         409640  236306352      2  GPT part - 53746F72-6167-11AA-AA11-00306543ECAC
      236715992     262144      3  GPT part - 426F6F74-0000-11AA-AA11-00306543ECAC
      236978136          7        
      236978143         32         Sec GPT table
      236978175          1         Sec GPT header
    iMac:~ arashsahba$ sudo gpt -vv -r show /dev/disk1
    gpt show: /dev/disk1: mediasize=1000204886016; sectorsize=512; blocks=1953525168
    gpt show: /dev/disk1: PMBR at sector 0
    gpt show: /dev/disk1: Pri GPT at sector 1
    gpt show: /dev/disk1: Sec GPT at sector 1953525167
           start        size  index  contents
               0           1         PMBR
               1           1         Pri GPT header
               2          32         Pri GPT table
              34           6        
              40      409600      1  GPT part - C12A7328-F81F-11D2-BA4B-00A0C93EC93B
          409640  1755598912      2  GPT part - 53746F72-6167-11AA-AA11-00306543ECAC
      1756008552     1269536      3  GPT part - 426F6F74-0000-11AA-AA11-00306543ECAC
      1757278088         120        
      1757278208   196245504      4  GPT part - EBD0A0A2-B9E5-4433-87C0-68B6B72699C7
      1953523712        1423        
      1953525135          32         Sec GPT table
      1953525167           1         Sec GPT header
    iMac:~ arashsahba$ sudo fdisk /dev/disk0
    Disk: /dev/disk0 geometry: 14751/255/63 [236978176 sectors]
    Signature: 0xAA55
             Starting       Ending
    #: id  cyl  hd sec -  cyl  hd sec [     start -       size]
    1: EE 1023 254  63 - 1023 254  63 [         1 -  236978175] <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     
    iMac:~ arashsahba$ sudo fdisk /dev/disk1
    Disk: /dev/disk1 geometry: 121601/255/63 [1953525168 sectors]
    Signature: 0xAA55
             Starting       Ending
    #: id  cyl  hd sec -  cyl  hd sec [     start -       size]
    1: EE 1023 254  63 - 1023 254  63 [         1 - 1953525167] <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     
    iMac:~ arashsahba$

  • Windows Partition Won't Mount in OS X

    Hi,
    I just used Boot Camp to install Windows. I had Windows XP installed on my MacBook Pro awhile ago, but after I got it back from a hard drive repair I didn't put Windows back on. I recently downloaded the Windows 7 RC from Microsoft's site and used boot camp to install it. The install seemed to go fine, and I was in Windows setting up stuff for awhile. When I booted back into OS X, my Windows partition would not show up on the desktop, and would not appear in the Startup Disk preference. In Disk Utility, it shows up as grayed out with the generic name "disk0s3". When you try to mount it from there, it gives the error "The disk "disk0s3" could not be mounted. Try running First Aid on the disk and then retry mounting." Since I formatted it as NTFS (no other choice for Windows 7), I can't do a verify or repair on the disk.
    Going into Terminal and doing a "diskutil list", I see the 50 GB windows partition labeled as "Microsoft Basic Data." I've been looking around for a fix but can't find anything. Many people were complaining about this issue on these discussion boards back in 2007 but there was no real solution found.
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    Alright, well I finally made progress! I had heard from other people who had this issue that installing NTFS-3G and MacFUSE didn't help, so I didn't bother before. However, I tried it just for the **** of it, and it definitely improved things. When I first restarted after installing both NTFS-3G and MacFUSE, I got a message saying that the Windows partition was unmounted "uncleanly" or something to that effect. I was given two options: to Ignore, or to Force the partition to mount. When I chose Force, it actually mounted successfully. The name on the partition was for some reason "Untitled", even though when I boot while holding option it shows the partition as "Windows". But it mounted fine, and I could write to it. I booted back into Windows, and found that under Windows the drive was also unnamed. So I named it Windows, went back into OS X and the name stuck.
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  • My passport won't unmount

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    - Dragging to the trash can doesn't work. The eject icon appears, but nothing happens.
    - Ctrl-click does not show Eject as an option when highlighting the mounted image.
    - CMD-E doesn't work
    - EJect doesn't appear as an option in the finder menu
    - Clicking on the Eject button in the sidebar of the Finder window doesn't work.
    - I've logged out, rebooted, repaired permission, and installed a new OS (clean install of 10.5, then did the import of my old user settings. Since I had the problem in Tiger, it's clear the problem followed me, but what the heck causes it?)
    *The only way to unmount/eject a disk image is to use the Disk Utility Program.*
    *DVDs also can only be ejected via Disk Utility*
    The iDisk connection can only be killed by opening Activity Monitor and killing the webdavfs_agent process.
    Would love some help. I've searched a lot and have a fair amount of folks with this problem, but no real solution.

    That'll work; however, then the OP has to reset all of his preferences. Easier would be to log into the newly created admin account, backup the bad account's folder, delete the bad account, selecting the save data option (which is stored in /Users/Deleted Users/ as a disk image), recreate the bad account using the same username/password combo, log out and back into the recreated original account. Mount the saved data dmg file in /Users/Deleted Users/, open the /Library/Preferences/ folder from the saved data, open the current /Users/restored account/Library/Preferences/ folder, and slowly copy plist files from the saved data folder to the current one. Log out and back in to ensure there's no conflict and things still work correctly. Resolving these kinds of conflicts is a laborious process, but not as laborious as resetting preferences or even remembering what you set weeks, months, or years ago.

  • Boot Camp partition won't mount in Disk Utility all of a sudden

    I used to have a Windows 7 Boot Camp partition set-up and working perfectly.
    Turned on my 2009 Mac Mini today and couldn't see it in the Finder. Opened Disk Utility, it was there, but grayed out. Right clicked and selected "Mount BOOTCAMP", got "mount failed"
    Tried verifying and repairing disk, but no joy. So I removed the boot camp partition using Boot Camp Assistant and started again. Went fine, installed Windows 7 fine.
    Booted back into Snow Leopard so I could unpair my bluetooth keyboard (I've found that I can only set-up the bluetooth keyboard in Windows 7 if I unpair it in OSX first). Again, Boot Camp partition doesn't show in the finder, and is grayed out in Disk Utility.
    I googled this problem, and found a few people mentioning that NTFS drivers in OSX (e.g. MacFUSE, paragon etc) can cause issues because they conflict with Snow Leopard's own NTFS driver. I did have MacFUSE installed, so I removed it, but it didn't seem to change anything.
    Any suggestions?

    solution!
    install NTFS-3G (http://macntfs-3g.blogspot.com/)
    open disk utility and mount your greyed out partition (NTFS-3G will mount it)
    unmount it
    open system preferences, go to tuxera NTFS pref, second tab (Volumes)
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    at this point i rebooted into windows, then rebooted back into snow leopard. my windows partition was once again mounted and visible in Finder
    hope this works for you guys!
    Message was edited by: colmiak

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