Hardware :: Cannot Recognize Drive / Deleted Partition Mapping?
Nov 8, 2007
I was moving partitions in VolumeWorks and accidentally ejected the Lacie Disk. Now whenever I try to use it i get this:
http://img141.imageshack.us/img141/4281/erroram9.jpg
I clicked initialize once, but I closed DiskUtility and it never had time to do anything. I know this because I can still use DataRescue to get my files. The problem is, the files will not be named or organized correctly! On disk utility, it will not let me mount the the drive (although it still shows the icon on disk utility) so I cannot repair it. Shoot, apparently initializing it removes the partition map. How can I get the partition structure back in place?
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Feb 22, 2010
I have a 2 TB external USB drive with two partitions: a small NTFS for Windows 7 and a large HFS for Snow Leopard. I have Windows 7 installed via Boot Camp with Macdrive. Both partitions seem to show up and work perfectly when I boot in Windows 7, but in SL, only the NTFS partition mounts. In disk utility, the HFS partition is greyed out and labeled 'disk1s1' (not what I named it) and says that it's formatted in 'MS-DOS (FAT)' format. When I try to repair the disk it says the following: "Invalid BS_impBoot in boot block: 000000 Volume repair complete. Updating boot support partitions for the volume as required. Error: Disk Utility can't repair this disk...disk, and restore your backed-up files."
Considering neither of them are boot partitions, I'm not sure what the deal is. I tried running Testdisk to see if it could repair the partition map and it says "Write access is not available for this media, Testdisk won't be able to modify it". I have hundreds of gigs of data on this partition, so reformatting isn't an option.
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Dec 4, 2014
I recently had my Macbook Pro (pre-retina, 2013) checked out by Apple and was told my internal Hard Drive has packed in. I decided to buy and fit a new one myself (£100 from Apple vs £40 myself!!!) so I purchased a 2.5" 500GB SATA Hard Drive and have swapped it with the old one. I am sure I have connected it properly (I've checked 3 times) and I'm sure it is the right HDD (I checked this at the Apple Store in town). I've been told to do an Internet Recovery (Command + R at start-up) and this works fine. When I get to Disk Utility, however, to format the new drive, the drive is not recognized!! It doesn't come up as one of the options, so I cannot select it to make a partition and format the disk.
I am beginning to think it wasn't actually the HDD that was the issue, rather something else like the logic board?
Info:
MacBook Pro
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Apr 21, 2010
I tried to install Ubuntu (don't ask me why) onto my G5 dual core 2.5 Ghz PowerPC and after the installation not working as I had hoped (it worked fine on my netbook btw) I switched off the mac using a hard-shutdown from the power button as the whole system became completely unresponsive. I then tried to reboot and found that on my reboot rather than booting into the user screen as per usual I got the dreaded "circle with a cross through it". After fiddling about with a hell of alot of boot options I managed to get into the open firmware (option,o,f) terminal style screen up. from this screen it would seem that on my internal hard drive that pretty much all of my files are still on the hard drive. As I couldn't open them from the open firmware I was then told by a friend that I could run disk utility from the install cd provided with mac os x and I managed to find my internal hard drive using disk utility.
It seems as though during the ubuntu install I've deleted all partitions on the hard drive and therefore on the "partition" section under "current" it has no partitions set up and I have the option to set one up. It also gives me various different formating options; Mac os x Extended, Mac os x Extended (journalled), Mac os x Extended (Case sensitive journalled), Mac os x Extended (Case sensitive), unix file system and free space. I think it was originally on Mac os x Extended (journaled) but I'm not certain. Before I hit that re-partition button do u think that this is the right thing to do and if so which formatting option should I use? Presuming that the re-partitioning goes well, will I then have to re-install os x? Also will I loose all the data on the hard drive? Although I have the vast majority backed up there are still a few odd files that I wouldn't mind keeping if at all possible and obviously I didn't think to back up those hundreds of apps I've acquired over the years.
An embarrassed Dc
Power Mac G5 dual-core at 2.5 GHz (OS X 10.4.11)
Internal Hard drive: Serial ATA Maxtor 6B250S0
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Mar 9, 2012
I am using mac OS X 10.6, during the time to create a installation disk using disk utility by mistake I have selected my partition drive and after that I couldn't find any data in that drive, how to get it back data.
Info:
iMac, Mac OS X (10.6)
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Aug 23, 2009
I want to move all my movies and TV shows to a 1TB external drive that used to be my Time Machine (now I have a 2TB Time Machine.) Half of the content is on my iMac's internal drive, the other half is on a 500 GB external called "Media Extension." If I close iTunes, rename the Media Extension to something else, then rename the 1TB to Media Extension and move all the files, will iTunes still see all the files that were on the Media Extension? Obviously it won't see all the files that were on the internal drive, so I'd have to remap those. Similarly, will Time Machine add additional copies of all the files or will it see them as the same since they are still on "Media Extension." I might just blow away all my TV shows and movies from iTunes and then drop them back in and wipe out my Time Machine so I don't duplicate all these movies, but just wondering if I can reduce the work in this way.
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Aug 15, 2009
I had a smallish (20 GB) windows XP partition created using boot camp beta on OS X Tiger. The I updated to Leopard, no issues, still could access and use my old partition. Now I am at school, and wanted to upgrade to Vista. Partition was too small. I opened Bootcamp and used it to "delete" my old partition and turned around to create a new one immediately. Got the "Disk could not be partitioned because some files could not be moved.
Use DIskUtility to repair/restore volume to a Mac OSX Journaled Volume" (I paraphrased a bit). So I thought that I needed to erase my drive and reinstall Leopard. I did, angering my wife (forgot to backup the address book and our bookmarks, and hadn't used Time Machine yet, stupid, I know). Now when I try to create a partition I get the exact same message! What did I not do? I used the OSX install disk and selected "erase harddrive and install OSX" option. I don't know what else to do!
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Jul 24, 2010
OSX does not recognize the NTFS partition of Boot Camp Windows 7 I have. It is not mounted in Finder. I went to Disk Utility to see the NTFS partition, the one I installed my Windows 7 on, but it says the format is in MS-DOS(FAT) whereas I clearly see it shows as NTFS on Windows 7. It is also greyed out, named disk0s3.
I tried to verify the disk and it fails as follows:
Verifying volume "disk0s3"
** /dev/disk0s3
Invalid BS_jmpBoot in boot block: fcfcfc
Error: This disk needs to be repaired. Click Repair Disk..............
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Oct 17, 2010
As I was trying to install Arch Linux on my Mac (dual-booting), I accidentally deleted my Mac partition! To add insult to injury, the version of linux I downloaded was the wrong one, so I couldn't even have that. I reintalled Mac 10.5 (I have the 10.6 cd, just haven't reinstalled that one yet), and now I want desperately to recover from the old partition.
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Aug 14, 2008
I was trying out to test if I might want to use OSX since I was always using Windows XP, but apparently I did some stupid things while I was on OSX. I wanted to expand my OSX partition but I couldn't do the typical dragging to adjust the size, so I pressed on the + button on disk utility and my windows partition became 2 equal partitions. But that wasn't what I wanted so what I did was to click - and not sure that that was an actual confirmation for deletion, I clicked the button to Doom! So now, I'm left with a single Mac partition with the rest of HDD in free space condition. I didn't create a new partition or read or write to the sector. The question is, thus, if there is anyway to restore or undelete that partition that was so unfortunate?
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Jun 10, 2012
How do I revover an accidentaly deleted partiton from an external drive? Actually how do I do it without thirty party software, just using free or testdisk?
I am just not shure what I did, but I replaced my external HDD partition with a blank one. I didn't do/copy/erase/modify anything from the drive after that, so I think it would be easy to restore the partition.
Another problem is that the Quick Search of test disk is taking an eternity to finish. I'm imagining what would happen if I use the Deepr Search.
I saw videos of people doing it with other type of filesystems and it seamed so fast.
Info:
Mac mini (Mid 2011), Mac OS X (10.7.4)
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Apr 19, 2009
I partitioned my hard drive to install windows. I rebooted, loaded up the windows disc. And then realized my disc only had one partition. I quit the windows installer without installing windows, went into boot mode and I can only see my bootcamp partition. Is there any way to get my osx partition back?
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Mar 7, 2010
I accidentally deleted my husband's mac osx partition when I was installing windows 7 via bootcamp on his macbook pro. When I was installing windows it showed all these partitions (disk 0 partition, disk 1 BOOTCAMP, etc.) so I deleted all of them, thinking I would save space. When I restarted the macbook pressed "option," only the windows drive appeared. I had no idea I could delete the primary OS when I was in windows. I now have fully functioning windows 7 but no osx.
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Apr 23, 2010
I have the latest 17" i7 macbook pro and installed windows 7 64 bit on 100 gb partition. Long story short, I decided to delete the partition for now and install another time. It deleted fine, but every time I turn the computer on, it will load and say " no bootable device" but if I turn on holding option, the mac partition shows up fine and loads normally when I click on it. I just need help completely getting rid of the partition. My Mac hd says 500gb capacity. So its not partitioned any more.
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Jul 12, 2010
So I tried to install XP on my MacBook Pro via Boot Camp and it didn't go so well. To make a long story short, my OSX partition and Windows partition were both deleted so I re-installed OSX. When I went to re-intall OSX I could not choose a HDD to install it on, so thinking it was the right idea I created a new partition and continued the installation. After installation everything seemed fine so I went to restore from time machine, which I did. The only problem is I now have 100 GB of data on my computer, but it apparently doesn't exist as I can't see, or access any of it.
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Jun 15, 2012
I want to erase and re-install OSX but I have a partition of Windows 7, will the installation delete the partition of Windows as well?
Info:
MacBook Pro (13-inch Mid 2010), Mac OS X (10.7.4)
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Sep 21, 2010
My husband set up a partition on his MBP for Windows to run a program called TaskMaster for work. Well for some reason he was trying to use Time Machine last night and ended up deleting everything. He's at work, screwed and stressed out so I'm trying to be the helpful and supportive wife. Is there any way to recover Windows, the partition, and/or the TaskMaster stuff?
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Nov 4, 2010
I setup a Bootcamp Partition to run Windows. I set it to only 10gb to save all of my space on my Mac OS. I wanted to delete it completely because it was doing some funny things on the Windows side but I accidentally deleted the Mac OSX Partition!!!! Now when I start up my computer it only starts up on Windows with the 10gb partition. I want to restore my Mac OsX partition with all of my important importation on it!
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Jun 13, 2010
I opened up a partition a few weeks ago b/c I needed to use a windows program that I no longer need. I was getting tired of having to hold alt-option to choose my HD everytime I started, so I deleted the partition. Now, I still have to go through the same process everytime I power up, even though I only have the Mac HD - I have to hold down alt/option when I start up and then click on the Mac HD button. What do I do to make it go straight to Mac?
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Jun 30, 2012
My iMac (27-inch, Mid 2011) came with Lion installed. I deleted the recovery partition when I triple booted with Windows 7, Ubuntu and Mac OS.
Is there any way to re-create a deleted recovery partition in Lion? I've read that you can download Lion from the App Store & write it to a USB using the Disk Utility.
I am currently dual booting with Mac OS X Lion (10.7.4) and Windows 7 (installed via Boot Camp).
Info:
iMac, Mac OS X (10.7.4), iMac 27-inch, Mid 2011
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Dec 31, 2010
I have just recently deleted my Bootcamp partition in Disk Utilities, and now im trying to increase the partition size of my Macintosh HD drive. When i go to the partition map and try to increase the size. The same error always appears. "Could not modify partition map because filesystem verification failed" I have attached an Image of what my partition map looks like right now.
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Jun 6, 2010
I tried yesterday to make a Boot Camp partition on my MacBook Pro 17"s 500GB hard drive, but something seems to have gone wrong while installing Windows 7. And the new partition was inaccessible from Disk Utility, so I deleted it by booting from the Windows 7 disk. But now the unallocated space from the deleted partition isn't showing up in disk utility, and I have now idea how to remerge it with my main Snow Leopard partition.
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Jul 18, 2010
I deleted my Boot Camp partition in Disk Utility (as usual, Windows wasn't working and wouldn't fix). I resized my Macintosh HD partition to cover the whole drive and repartitioned. Now Disk Utility says that the partition's capacity is 160 GB and that I've used 40 GB and that 70 GB is available. My Boot Camp partition was 50 GB. I've read that to fix it I have to boot from my install DVD, go to Disk Utility, set the number of partitions to one, and delete the entire drive so that there's zero data left. Then I'd reinstall OS X and restore from a Time Machine backup. As of now, I have no external hard drive.
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Feb 12, 2009
I am trying to format my external drive to have (2) partitions. A NTFS for backing up my Windows computer and a HFS for backing up my MacBook Pro.
This is what ive tried:
1.) Create 2 partitions on my Mac in Disk Utility. 1 partition HFS, 1 partition FAT32. After doing this both show up in OSX but neither one shows up in WinXP. I was hoping the FAT32 would show up in WinXP so I can convert it to NTFS.
2.) Create 2 partitions in WinXP using Disk Management. 1 partition is NTFS and 1 is FAT32. Connected the drive to my MBP and both partitions mounted in Finder. I then opened Disk Utility and tried to "Erase" the FAT32 partition to HFS. The process seemed to be working but then it changed the name of the partition to disk1s1 and nothing else. The partition doesnt mount in Finder or WinXP.
3.) Create 2 partitions in WinXP using Disk Managment. Both partitions as NTFS. Connected to MBP and both partitions mounted in Finder. Opened Disk Utility and tried to "Erase" one of the NTFS systems to HFS. Same thing happen as #2, renamed the partition but didnt do anything else. The partition doesnt show up in Finder or WinXP.
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Jul 30, 2009
I had my hard drive partitioned into 2, where one was mac the other windows xp. I received this macbook as a gift from my sister so i wanted to reformat everything into mac. I popped in the Mac OS x install cd and just installed it. Now there is two hard drives and I am not able to re-partition it where i can bring it back to one again...I was suppose to delete windows first before re-formating my macbook.
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Jun 23, 2010
So here the deal. I have a single hard drive in my MacBook Pro. Its made up into 2 partitions (one for os x and the other for data). I want to make the OS X partition into 2 separate partitions (so I'll have a total of 3) without erasing any data. I want to use that new partition to install windows. When I select the OS X partition, and set it to format at NTFS, it says the size cannot support the filesystem (25GB in this case). What size does it have to be then? Or should I format as FAT32?
I know FAT32 has a 4GB file size limit so I don't want to do that because I want to install some games on the Windows partition. How should I go about doing this?
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Aug 31, 2009
I'm trying to set-up a partition on my drive but I keep getting an error telling me there isn't enough room on the drive when clearly I have plenty of room. Pic attached.
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Mar 6, 2009
I just got a non-Apple keyboard, the Unicomp 104, and I absolutely love this beast. They even printed me custom "command" and "option" keys when I asked them to. The only thing I miss is that there are no volume control keys. Now, I found this link with a little hack to make an Applescript to change the volume: [URL]
This is much better than nothing, however I wonder if anyone knows how to map the vol+, vol-, and mute keys to other keys on the keyboard. I'd rather have that, because that way gives me the white volume box, and has the popping sound to give me an idea of the volume level, and can be modified with option for more incremental control, etc.
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Dec 28, 2010
I have the most recent Airport Extreme and I would like to setup port mapping so that I can use my Apple Remote Desktop from outside the local network. I am having trouble following guides that were geared towards older software versions of the airport extreme. I can't find how I can get to the port mapping (forwarding) in the device
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Dec 19, 2008
My roommate often hooks his Macbook to his HDTV. The problem he has it sometimes is hard to read text. He can zoom is while holding the Ctrl key and then scrolling up with the scroll ball on the might mouse.
What he'd like to do is be able to map the side button on the might mouse to the control key so he can just click that and then scroll up to zoom in (so there is no need to hold the physical key on the keyboard).
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