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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Jul 3, 2012
After a fatal mac crash (PPC 10.5) i had no option but to reinstall the OS (10.5), i obviously didnt reformat the drive in the hope that i would be able to recover some if not all of my data. Using various tools i was happily able to recover most of my data successfully, including 3 AES encrypted Disk images of around 30GB in size each.
I didn't hold out much hope for actually recovering the data inside the dmgs, although after some fiddling i was able to recover 2 of them fully after receiving the no mountable file system error, i dont know how i done it but nonetheless i dont appear to have lost any data from those two dmgs whatsoever. Now the third dmg (also about 30GB in size) never gave me the no mountable file system error and instead returns the error: unable to mount: not recognized. Im pretty sure that my data is still there somewhere due to the sheer size of the recovered file, tied with the fact of the success of the recovery of the other 2 disk images. I have read every post i could find on this site and have trawled the web tirelessly looking for a solution to this, but have yet to find anything that even comes close - the closest i have found was a post on this forum where it would appear an apple engineer was able to recover most of the data using some sort of magic.
I am not in a position to pay for professional data recovery and besides i would love to see a solution to this problem appear somewhere on the web. I have tried the usual, rebuilding permissions, mounting on another machine (imac G5), resizing with disk util, repairing with disk warrior, converting to ISO - all which return the same error - not recognized! I have tried every terminal command i have found on the web, although decyphering some of the information is a little out of my remit and my knowledge of HEX is limited. I haven't yet tried Toast, basically because i dont have a copy, but it would be my guess that this would return a similar result. Incidentally when i recovered the original data, there were some small (what appeared to be dmgs) files around only maybe a few Kb each with part of the file names of the original files, i'm guessing these maybe the headers or something like that? although i didn't have to do anything with them to get the other 2 disk images working again.
Info:
iMac, Mac OS X (10.5), Disk Image error
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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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Feb 14, 2012
My MacBook pro's hard drive is VERY nearly full. Can I use attach an external hard drive, move my pictures onto it and use it as my main location for photos?
Info:
MacBook
Pro
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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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Feb 10, 2012
Safari won't let me select multiple files to attach to an email. I can attach more than one file, but I have to attach them one at a time. Is there a setting I need to change or something??
Info:
MacBook Pro (15-inch Late 2011)
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Sep 9, 2009
now and again my western digital 1Tb external hardrive will pop up and it will let me access it but then it will just go off saying that i did not eject it properly. i have not ejected it as all of my work is on there that i work from. ive tried taking it out and waiting for abit and putting it back in ive tried restarting the mac but nothing comes up. ive tried seeing if it has detected the hardrive by going to ABOUT MY MAC - MORE INFO an then USB when i do this it does not load up to show me the infomation so i have to force quit it. ive tried my hardrive in lots of other computers an it works like a dream in everyone of them.
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Jun 25, 2009
I've done some work on Numbers and Pages (both 2008) on my MacBook. For some reason when I try to attach these documents to an email to send to my boss, they are grayed out so that I cannot click them and attach them. I've tried using my university's system as well as hotmail, ymail and gmail, so I assume it has something to do with recognition of the files. So far, I have tried to change the Numbers documents to .xls, but this does not solve my problem.
In this form, the properties ("Get Info") tell me that it is a Microsoft Excel document, but Numbers won't open it and in won't send via email. I have other .xls documents on my computer that I either received by email or downloaded, the icon on my desktop is different, Numbers reads it and they can be attached to emails. It seems that even though I change the .numbers files to .xls, there is still something missing for them to really be Excel files or at least sendable.
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Dec 8, 2014
Since updating my MacBook Pro to OS X Ver. 10.9.5, I'm unable to attach any documents to my emails.
Info:
MacBook Pro (13-inch Mid 2009), OS X Mavericks (10.9.5)
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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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Jul 15, 2012
I just bought a new 27" 3.4GHz i7 iMac to replace my agin iMac running Snow Leopard. Every time I turn the sharing on so that I can access the iMac and the attached hard drives from my other computer all the permissions explode to in infix able stse where I have to flatten the drive and reinstall Lion. I've spent hours on the phone with Apple, troubleshooting, running bits of code in the terminal all with the same result which is the permission going ****** (including bad .kext files) Any ideas out there or should I just go for a replacement iMac?
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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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Jun 20, 2010
Hi all. Here's the deal. I have an Airport Extreme and and external 1 TB hard drive. When I first set up Time Machine on this set up a few years ago (partitioning the hard drive first) it worked great! After a few firmware "improvements" from Apple it no longer works. The computers cannot attach to the external drive via the Airport and when I force them to the Time Machine backups fail after about 15 minutes of backing up.
I'm considering buying a 1TB Time Capsule for our main router and my wife's MacBook backup (I'll just hard wire the old drive to my iMac) and using the older Airport as a WiFi repeater.
Problem is that I've read about all sorts of problems with the Time Capsules failing after about 18 months. So should I try the set up I'm considering or is there a fix for my current setup that I should try instead?
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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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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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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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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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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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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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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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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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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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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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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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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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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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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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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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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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Mar 28, 2012
I have often created pdf files and attached them to email. Today I created a letter and made it a pdf. everytime I attach it to an email it becomes the body of the email. No other pdfs do this.
Info:
MacBook Air, Mac OS X (10.7.3)
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