OS X :: Unable To Find External Disk?

Apr 27, 2010

I got a 500GB WD external disk for my MBP 2.2GHZ/2GB/500GB which with up-dated Snow Leopard and Windows XP pro(Boot camp). Here's wot happened and my probs:Last Tuesday I used the external disk with no problem. But on Friday the external disk is unable to be founded by MBP either in Disk Utility or Finder. I tried to switch to Windows XP where I installed MacDrive to read Mac partition under windows. The system says it cannt install the disk coz device unrecognizable. First I suspect it 's the problem with external disk enclosure but when I replaced it with another new one, problem stay still.

So here's some questions, First, is there any instruction I can take to solve the issue, or if the disk unfortunately crashed any possible chance I can rescue the data (My vital working data achieve is inside) using application or else.

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MacBook Pro :: Unable To Check External Hard Disk / Cannot Find The Disk

Feb 15, 2011

I've download a Seagate Diagnostics programme to check whether my external Seagate FreeAgent Desk is working properly or not. However, when I run the programme, it indicates that cannot find the disk.

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OS X :: Unable To Find Way To Stop Indexing External Drive

Feb 20, 2010

I just added a 1 Terabyte drive for both backup and regular file storage. I partioned the drive so I would have a volume purely for backup. Backing up to the drive was taking forever, i searched and found index is the problem. I also found a couple ways to stop indexing. I utilized the touch function, but the .metadata_never_index doesn't seem to take at all. I have since utilized the sudo mdutil function for just the backup volume and this works. However..... Will this permanently leave indexing off on this volume? The drive backs up my laptop so it's disconnected frequently. Also does anyone have a guess to why the never index function didn't work? The syntax looked to be perfect.

touch /Volumes/Obsidianice Backup/.metadata_never_index

Whenever i ran the ls function

ls -a /Volumes/Obsidianice Backup

to check it it returned

No such file or directory

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OS X :: Unable To Partition External Hard Disk - How To Fix It

Sep 28, 2009

My intention is to partition an external HD in half allowing it to serve as a backup for a pc running windows xp, and the other half as a backup for a mac(10.5. I am using a Seagate external HD(new) that was initially partitioned on a windows xp computer.

The 1st half of the 1TB HD was formatted in NTFS format, and the second half was erased and (I thought) reformatted in HFS plus but when I attempt to use CCC(Carbon Copy) to copy the mac 1/2 of the hard drive, I get this message:

"You may have difficulty booting from this target volume, the underlying disk is not formatted with a partitioning scheme that Apple recommends for Intel Macs."

I have read the recommendations that the external HD need to be partitioned with APM or GPT, but I cannot seem to get to that option now for the mac side of the external HD.

In the Disk Utility, the external HD shows both sections of the partitioned drive(the xp section and the leopard). I do not want to reformat the entire drive(both sections) if at all possible.

I just want the Mac side of the ext drive to be properly prepared for CCC, and the windows side to remain as is.

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MacBook Pro :: Unable To Attach External Disk Through USB?

Mar 1, 2012

I bought my Macbook Pro 13 inc, 500 GB, i5, OS X Lion, 2 days ago and this is my first Mac .I cant see my external disk (Philips), Samsung Galaxy S by using USB ports (i tried both USB enterances, but not working). I checked my Hardware by Apple Hardware Test (extended test done) and it says 'No trouble found'I checked Utilities and USB devices are not written in the list, only 500 GB SATA disk shown. I uploaded MacFuse-Tuxera and ntfs-3g-2010 softwares for using USB devices but i cant solve the problem too... My USB devices are not shown in desktop and utilities lists  How can i solve this problem, my devices work in Windows 7 - PC as usual, but in Macbook Pro, they dont work, please support me. I dont think that it can be hardware problem, Mac is new and devices are ok. Operating systems are different only. 

Info:
MacBook
Pro

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MacBook :: Unable To Copy Iso's To External Hard Disk?

Mar 30, 2010

I'm using a macbook and would like to copy over several games over to my friend's external harddrive. The files are rather large -8gigs, 6gigs, 4gigs.

For some reason it wont allow me to copy the files to the HD. only prompting me with the message "the operation can't be completed because an unexpected error occurred (error code 0)".

I presume that it's formatted correctly because I was able to copy a smaller file (363megs) without any troubles. However, whenever it involves these large torrents it prompts me with that same message.

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OS X :: Unable To Mount External Drive / Repair Disk Permissions?

May 20, 2009

I'm having a series of problems. First some intermittent audio problems with Garageband, then, then some external drives won't mount, and now I can't sync to my disk from the iMac. I've run Disk Utitilies a few times and when I do Verify Disk Permissions, it finds a list of things to fix, I then hit Repair Disk Permissions and it fixes them, and then hit Verify Disk, and it say the disk appears ok. When I do Verify Disk Permissions again though, it finds another long list of things to fix. Is this serious? What should my next step be? Should I reinstall the entire system?

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Hardware :: Unable To Reapair External Disk / Unmount Error

Jun 22, 2008

I have a Western Digital 500gb external hard drive, with 2 partitions, 'KAINARC' and 'JUNGLEMAC', connected to my Intelmac (Tiger 10.4.11 via my firewire, i have connected via usb but the problem is still the same). I may have shut down the drive improperly to cause this situation.

KAINARC now appears on my desktop, but the partition of JUNGLEMAC does not. I go to disk utility and both partitions are visable, KAINARC is mounted but JUNGLEMAC is not. I cannot mount JUNGLEMAC.

When i try to verify and repair the partition I get the message:

Verify and Repair disk �JUNGLEMAC�
Error: The underlying task reported failure on exit

1 non HFS volume checked
1 volume could not be repaired because of an error

So I try to verify and repair the partition KAINARC but get this message:

Verify and Repair disk �KAINARC�
Repairing disk failed with error Could not unmount disk



So I have opened diskwarrior (unbelievably long time to start up and scan disks) in the hope of fixing the hard drive, but when i try to repair I get the error message 'unable to unmount KAINARC'.

I have tried other repair/recover programs but get the same message: 'Could not unmount disk KAINARC'. Im asuming that to fix the hard drive it has to be able to unmount KAINARC.

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OS X Mavericks :: Unable To Paste Any File On External Hard Disk

Nov 30, 2014

I'm using iMac 2011 model with OS Ver 10.9.5. The sharing and permissions option in the get info in External Hard disk shows "you can only read".

Info:
iMac, OS X Mavericks (10.9.5)

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Software :: Unable To Open Dmg File - Moved To External Hard Disk

Jun 9, 2009

I created an image of an external hard drive to back it up, then I checked it and it opened fine. I moved the file to another drive and initialized the original drive and dropped the dmg file back onto the drive. Now it won't open. I really need the files on that drive. Is there any way at all to open it if even for a short time to retrieve the files?

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OS X :: Unable To Format External Hard Drive / Starts And Stops With Disk Error

Mar 24, 2009

I received an Acomdata 2Tb external hard drive today from Amazon and plugged it in. Time Machine popped up and I declined to link the hard drive to it. I went into Disk Utility and chose the new hard drive on the left column and went to erase. I chose Mac OS Extended. I named it and hit erase. It started going, and going..... and going... and a half an hour later I knew something was wrong.

Disk Utility was not responding and I eventually had to Force Quit. Now I cannot format the hard drive. I starts and then it stops with a disk error. I tried to run the First Aid verify and repair and both stopped after a few seconds with an error. What do I do?

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OS X :: Unable To Write External Hard Disk In Mac / Can Read Write In Windows

Feb 15, 2011

i had a External Harddrive.Currently i can Read//Write on it in Windows PC(Windows7)But when i use the same drive in Mac i can only read...but can't able to write. How to resolve this issue

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OS X :: Encrypting External Disk And Backup On Second External Disk

Jan 5, 2011

As I have a MBP 17" and a MBA Ultimate 11.6" I have copied all data that I need onto a 1 TB external disk and made 4 partitions on it, one for each type of data ( movies/music, data , software etc etc ). 1. I want to password lock/encrypt it yet be able to access it from both laptops as regular data would be.2. I want to create a backup of the 1 TB disk above, on to another 1 TB external disk and make it encrypted/password protected also. Maybe follow the partition structure maybe not, thats not paramount.What's the best way (apart from .dmg file) to achieve this given the data on disk in point 1 will change often as I create/edit more files.

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OS X :: Disk Warrior Unable To Replace Startup Disk / Connect To TC To Transfer Across DW's Preview

Feb 18, 2009

Yesterday I switched on my macbook (Leopard) and got the flashing question mark. Ran all the resets and booted with disk utility which encountered an 'Invalid B-tree Node' when attempting to repair the disk. Additionally, the SMART status was verified.

I ran DW 4 last night, and performed the hardware tests which reported that the disk was operating like normal. The majority of my media files and additional work is backed up to my Time Capsule but I still have a folder of papers that are relatively new, and wanted to retrieve. While DW managed to reconstruct the majority of my drive (there seemed to be 15g missing - but it's just music files) including this folder, it couldn't replace the disk, as it encountered 'Serious Disk Malfunctions'.

So, via the Disk Preview I want to transfer my saved folders to my TC, but I don't appear to be able to locate it (via ethernet) through DW - even if it's connected when I boot up in DW. So, first request is: Can I connect to my TC to transfer across in DW's preview?

Second is: What are my options if DW can't replace? Do I need to take it into Apple and get a new HD (it's out of warranty)? It's possibly worth noting that I'm a student and have absolutely no money - so cost effective options are a bonus!

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OS X :: Unable;e To Boot From Internal Hard Drive / Use Disk Warrior To Repair Disk?

Apr 11, 2010

I am considering purchasing diskwarrior but want to make sure it can help my situation before I purchase it. My imac will not boot from the internal hard drive (Intel processor) When I use disk utility to try and repair the disk, I get error messages and it won't repair. I can see the HD but cannot repair it. When I connect using target mode with my mac book pro, the hard drive does not appear on my host (macbook pro) computer. I have reloaded OS X (Leopard) onto a firewire external drive and can boot my imac that way but I can not find my original internal Macintosh HD. Will disk warrior be able to help with this scenario. I would really like to access that internal Macintosh HD and retrieve my files.

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OS X :: Unable To Repair Disk / Unfixable Permission After Running Disk Utility

Jan 2, 2010

Running Diks Util on my iMac 10.6.2. i am given this warning.
=========
Warning: SUID file "System/Library/CoreServices/RemoteManagement/ARDAgent.app/Contents/MacOS/ARDAgent" has been modified and will not be repaired.

Is it something I should heed and what to do in that case?

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OS X V10.7 Lion :: Disk Utility Can't Repair Disk (1 Partition) On External Hard Drive

Apr 24, 2012

I have a 2TB Western Digital My Book Studio FW800 external that has 5 partitions, connected to my 2011 iMac. I had help doing the partitions and don't really remember the reasoning, but one is just for my SuperDuper! backup, one is Miscellaneous, one for movie clips off my camcorder, one for misc scanned photo's and one for my genealogy research. I back up using Time Machine to a Time Capsule and also to this WD hard drive with SuperDuper! 

Recently I'm getting a pop up message that "Mac OS X can't repair the disk "Genealogy"'.  And it needs to be reformatted.  It's become a read only disk.  When I look in Disk Utility it shows all the partitions as "Mac OS Extended (Journaled)" EXCEPT for the one in question.  I also noticed that there are a lot of files with "date created" being the same date in 1969!  These files may be letters I've written or photo's I added to that partition within the last few years. 

I think I have to completely reformat the entire external hard drive to repair this, but I want to make sure.  Because it's going to be a major hassle backing it all up to another external (having to get one first) and then figuring out how to make the files that have turned "read only" in that one partition, back to their original state!  Does this sound right, that I have to reformat the entire external hard drive?  And how do I get the read-only files back to their original state.

Info:
iMac, Mac OS X (10.7.3)

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OS X Leopard :: Disk Write Cache Corruption On External Hard Disk?

Feb 15, 2011

Recently I purchased an external hard disk, to put all of my pictures of my baby due to space limitations on my internal laptop drive. Since my Canon camera 10 megapixel pictures take up a ton of space this was occurring at an alarming rate. My intention was also to back up to DVD but never got to it. This is both a comment and a question.

Now said baby, is getting really good at pulling cords etc. He managed to do this on the external drive firewire cable. As far as i know the drive was not in the process of actually writing. However, after a few minutes and trying to re-plug the drive the OS crashed with a Grey Screen of Death hardware error that tells you that you need to push the power button..

This apparently corrupted the drive's directory. Upon reboot the drive would not mount. Since there were time machine backups on the drive too Diskwarrior was not able to reconstruct the drive in the built in memory available on the computer. Time machine stores millions of files and Diskwarrior apparently wants to keep it all in memory at once. Since my computer has 2GB you would hope that would be enough but apparently not. So that failed. Other utilities seemed to be able to find the files but not restore the directory. I also took it to the apple store they were not able to recover it.

I have to say this is extremely distressing, and hard to believe that a simple accident like this could cost the loss of thousands of pictures. I did send it to a rescue company but that was expensive but I think apple needs to do something about this situation.

On Windows there is a way to disable the write cache for external drives. This is not available for Mac OS X. This would prevent this rather common occurrence of a plug accidentally becoming disengaged when the drive is not in the process of writing. This reduces the odds but I still think apple, in order to become clearly superior, needs a better solution.

I know Apple has experimented with ZFS would this not eliminate this possibility of this kind of disaster? Is this in Snow Leopard desktop? I know they are thinking this is a business customer focused technology but clearly if it can eliminate this kind of thing then I think it is extremely useful to their non server customers. Perhaps there are other ways of dealing with this issue but ZFS is designed to deal with these issues. HFS+ is extremely fragile to disk corruption.

I know my situation is not that uncommon and this is not the first time this has happened to me with an external drive. You would think I had learned. I hate to think of how many other people have had the same thing happen to them.

Information:
MacBook Pro
Mac OS X (10.5.8)

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MacBook Pro :: External Hard Drive - Disk Utility Can't Repair Disk

Jun 27, 2014

I have a Seagate 1 TB Backup Plus Drive which was working perfectly fine until I plugged it into a USB hub. It detected it while in the hub and I was able to get files off of it, but when I ejected it from the hub and put it back into the USB slot on the computer it was not detected by finder. It shows up in the disk utility and I clicked verify and repair and it says:

Verify and Repair volume “Seagate Backup Plus Drive”
Checking file system
Volume repair complete.
Updating boot support partitions for the volume as required.

Disk Utility can’t repair this disk. Back up as many of your files as possible, reformat the disk, and restore your backed-up files. 

Is there any way to get this to work properly again? Or if not is there a way for me to recover my files on the external hard drive? 

I have a Macbook PRO late 2011 running OS X Mavericks.

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Applications :: Unable To Burn Disk While Using Disk Utility?

Apr 11, 2010

the burning disk is maxwell dvd+r

an error appearing when burning ''failed to calibrate the laser power level''

i have mbp (late 2008)

how to fix it ?

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OS X :: External Disk Not Showing Up In Disk Utility - Erase Partition

Sep 7, 2009

Anyone knows why my external HD (USB disk connected to Airport extreme) does not show up in disk utility? (It sits on my desktop just fine and is fully functional) I' want to erase a partition but now i don't know how.

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OS X :: Disk Utility Screwed Up External USB Hard Disk

Aug 6, 2010

I have an external 500GB Freecom USB HDD with two Data partitions on it (FAT32 and NTFS). With a Windows tool, I made the two partitions smaller in order to free up some space (ca. 200GB) for an additional Mac OS Extended (Journaled) partition. This partition I wanted to create with the Mac OSX 10.6.4 Disk Utility. When I pluged in my USB HDD in my new iMac it mounted the two partitions, NTFS and EXT32 and the Disk Utility tool also showed the free (unpartitioned, almost 200GB) space on the HDD. Then, I chose to create a new Mac OS Extended (Journaled) partition and let the tool do it. ...which I probably shouldn't have done. Disk utility stopped and showed an error message saying that it cannot read the partitions anymore and that it needs to be closed. No partitions can be mounted anymore since then on this HDD. Here is the logfile entry of Disk Utility (unfortunately, it's in German):............

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OS X :: How To Find About Disk Utilization

Aug 25, 2009

I have a macmini (80GB HD) with an external USB HD of 160GB. The external drive has 2 partitions and on one of them (size: 100GB) I make time machine backups, but the partition also contains a few other folders. The finder tells me this partition, has only 26GB available space. looking at the size of the folders, there is only something like 30GB used, so it seems 44 GB is not accounted for!

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Hardware :: ITunes Unable To Create New Library On External Drive / Unable To Drag Drop Files

Dec 7, 2010

I have a brand new MBP. I have a 1tb external drive with 250gb's of music. I have it attached to my mac via USB. I CANNOT GET ITUNES TO CREATE A NEW LIBRARY ON THE EXTERNAL DRIVE. I CANNOT DRAG AND DROP OR ADD FILE/FOLDER.

But get this, I hook it up to my old Dell and I can do whatever I want. I am friggin pissed that I spent all this money on Mac equip and can't get it going. You may have seen my other post where I posed my issue of: 1tb ethernet drive hooked to airport extreme. Above mentioned 1tb hooked up to back of it via usb. I am completely unable to copy, move, or add files using my mac. But guess what. my pc handles it easily and quickly.

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OS X :: Unable To Show 10.6 Install On External Monitor / Grey Box On External Display With Black Bar

Feb 27, 2009

I have a Macbook Pro 2.16 Core Duo, and I'm wanting to install 10.6, but about a year ago, I cracked my screen to the point that I cannot make anything out on it, and haven't replaced it. Instead, I have just been using it in clamshell mode, which has worked out fine so far. My problem is that I cannot get the 10.6 install to show up on my external monitor.

I searched around, and could only find one other similar thread that just ended with the author putting it in clamshell and having it work fine. When I boot to the install and close the screen, I just get a grey box on my external display with a black bar on either side of it. I can't seem to find any other resources, so I'm not entirely sure what to do at this point. Any help would be greatly appreciated.

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OS X :: IMac Could Not Find Its Start Up Disk

Oct 27, 2009

My IMac is about 1 year old. It is a 20 inch 2.4 intel iMac. It froze today the mouse wouldn't move or anything. My kids were messing around with it. So I just turned it off and back on. After a couple of minutes of gray screen a folder with a question mark flashes over and over again. So I got on my macbook to see what it meant, I found out that the iMac couldn't find its start up disk. So I went to apple support trouble shooting and it said start it up using the install disc which I did. It said go to start up utility and repair the disc. The start up disc doesn't show up, so they said if that happens reset the PRAM, which I did like 3 times, and nothing. They said if all these steps fail just reinstall using the installation disc. Which I did but when it said where would you like to install Mac OS X, you would normally see the Hard Drive Icon and it is gone, there is nothing there.

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Mac Pro :: The Computer Cannot Find Any Hard Disk?

Mar 11, 2012

installing an SSD in my mac pro 1.01 of 2007 afterrestarting the mac I went out one with a question mark with the famous gray screen, and I do not recognize any system disk.

Info:
Mac Pro, Mac OS X (10.7.3)

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MacBook Air :: Find Out The Disk Space?

Jun 3, 2012

How do I find out the disk space of my mcbook pro?

Info:
MacBook Pro, Mac OS X (10.6.8)

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OS X V10.5 Leopard :: Can't Find My Disk To Reload It

Jun 18, 2012

My mail app on my 10.5.8 went into the trash by accident. I can't find my disk to reload it. Where can I download the disk for this compnuter?

Info:MacBook, Mac OS X (10.5.8)

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OS X :: Cannot Find Original MacOS 10.5 Disk To Re-do The Password?

Feb 4, 2010

I have a MacBook with MacOS 10.5.5. I purchased Snow Leopard and want to install it, but I forgot my master password. I know what the password is supposed to be, but it doesn't work when I type it in.

I cannot find my original MacOS 10.5 disk to re-do the password.

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