Mounting Dmg Input Output Error
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enter a title. You can not post a blank message. Please type your message and try again. This discussion is locked Kunio Mitsuma Level 2 (160 points) Q: Try to mount a dmg file --> Input/Output error I have input output error mac disk utility certainly searched thru postings, but I cannot quite find a solution.[1] An external FireWire disk utility input output error new image drive holds a lot of dmg files of application installers.[2] Double-clicking some, not all, of them results in an Input/Output error.[3] input output error mac external hard drive Toast is always able to mount them.[4] When the error happens, an attempt to copy the dmg file onto the Desktop results in another error message "The Finder cannot complete the operation because some data in
Input Output Error Mac Restore
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Join them; it only takes a minute: Sign up Here's how it works: Anybody can ask a question Anybody can answer The best answers are voted up and rise to the top Unable to create disk image https://discussions.apple.com/thread/1635452?tstart=0 using disk utility (Input/output error) up vote 0 down vote favorite I want to create a disk image of source 100.03 GB Ext Hard Disk Media on destination 5TB Lacie ST5000DX000-1H2170 there is greater than 1TB remaining on the destination disk. The Disk Utility progress windows displays the message Creating Image Macintosh HD.dmg Reading whole disk (Apple_HFS : 0)… with progress bar that moves up to about 50% before the following error message http://superuser.com/questions/777497/unable-to-create-disk-image-using-disk-utility-input-output-error is displayed: Unable to create Macintosh HD.dmg. (Input/output error). Using Disk Utility, First Aid, Verify Disk, the volume "Macintosh HD" appears to be OK. Is there a way to view any more detail than the console will provide? So that I can learn more about the error. It could be due to low power on the source drive - I am using a 2.5" HDD External enclosure (Mini G2 from Silicon P/L) requires 5VDC/0.5A usb to USB and power (host usb 1 - enclosure usb and enclosure round power split end cable) lead and I am using my MacBook Pro Retina, 13-inch, Late 2012 as the host USB port. The HD inside the enclosure is from an early model G4 Powerbook that was running Tiger OS X. Other answers to input/output error suggest using DiskWarrior so I tried that, DiskWarrior fixed a bunch of flags and repaired permissions but when I ran disk utility again after that to create a new image it failed again for the same reason: input/output error. Using the terminal command (from http://hints.macworld.com/article.php?story=20050302225659382) dd bs=512 if=/dev/rXX# of=/some_dir/foo.dmg conv=noerror,sync does produce an image but after completion it could not be opened (or mounted) due to a "no mountable file system." mac external-hard-drive disk-utility share|improve this question edited Jul 6 '14 at 8:29 Jens Erat 9,015112946 a
error when mounting ddrescue output .dmg file Date: Thu, 24 May 2012 11:25:34 -0400 We've had no problems using ddrescue on the Mac. You should be sure https://lists.gnu.org/archive/html/bug-ddrescue/2012-05/msg00009.html to image the drive itself as listed in Disk Utility and not the volume. Additionally, on the Mac, you don't need to duplicate the image, and you http://osdir.com/ml/bug-ddrescue-gnu/2012-05/msg00009.html don't need to image it to a drive in order to use it.To create the image, use something along these lines on a Mac:sudo ddrescue /dev/rdisk0 input output image.dmg logfile.log(plus whatever other flags you feel like using).In order to attach the image so that you can run a tool like Disk Warrior, but still not have to worry about modifying the original disk image file, do something along these lines:hdiutil attach -nomount -noautofsck -noverify image.dmg -shadowThe "-shadow" flag puts all the changes input output error made in a separate file. Whenever you mount the image from then on, you'll need to mount it using the -shadow flag at the command line.Now run Disk Warrior or Data Rescue III or whatever you deem necessary to get the actual data out of the image. --Hank SchultzApple Certified Macintosh TechnicianCharlotte Street Computers252 Charlotte StreetAsheville, NC 28801828-225-6600Become our fan on Facebook - find out about contests, giveaways, and the latest computer trends and products.http://www.facebook.com/charlottestreetcomputers On May 18, 2012, at 5:39 AM, James Wilson wrote:Hi Nate,I recently had to utilise the amazing ddrescue to recover an encrypted 3TB FileVault2 drive. The image alone took 2 weeks to create, so I feel your pain! Mounting the DMG via Finder was problematic, however via the console gave more positive, but mixed results.I ended up, as suggested by Felix, writing the image back to a known good drive via a CentOS 6.2 box. This worked perfectly, using the command:ddrescue -v --block-siz
image the drive itself as listed in Disk Utility and not the volume. Additionally, on the Mac, you don't need to duplicate the image, and you don't need to image it to a drive in order to use it. To create the image, use something along these lines on a Mac: sudo ddrescue /dev/rdisk0 image.dmg logfile.log (plus whatever other flags you feel like using). In order to attach the image so that you can run a tool like Disk Warrior, but still not have to worry about modifying the original disk image file, do something along these lines: hdiutil attach -nomount -noautofsck -noverify image.dmg -shadow The "-shadow" flag puts all the changes made in a separate file. Whenever you mount the image from then on, you'll need to mount it using the -shadow flag at the command line. Now run Disk Warrior or Data Rescue III or whatever you deem necessary to get the actual data out of the image. -- Hank Schultz Apple Certified Macintosh Technician Charlotte Street Computers 252 Charlotte Street Asheville, NC 28801 828-225-6600 Become our fan on Facebook - find out about contests, giveaways, and the latest computer trends and products. http://www.facebook.com/charlottestreetcomputers On May 18, 2012, at 5:39 AM, James Wilson wrote: > Hi Nate, > > I recently had to utilise the amazing ddrescue to recover an encrypted 3TB > FileVault2 drive. The image alone took 2 weeks to create, so I feel your > pain! Mounting the DMG via Finder was problematic, however via the console > gave more positive, but mixed results. > > I ended up, as suggested by Felix, writing the image back to a known good > drive via a CentOS 6.2 box. This worked perfectly, using the command: > > ddrescue -v --block-size=4KiB ./sda.dd /dev/sda recovery_drive.log -f > > In order to help you, could you provide the following information > > - What version of ddrescue? > - What command line syntax did you use to create the image? > - Was the drive a single partition, using HFS+? > - How did you try and mount the image, via Finder or the console? > - If the console, what was the command used? > > Kind regards, > > James > > > On 18 May 2012, at 09:18, Felix Ehlermann wrote: > >> Dear Nate, >> >> I think you might be writing to the wrong list, but I can give you a few >> generic advices, hoping that they will be of help to you: >> >> * If you create an image from a damaged drive, DO NOT perform >> repair-operations on this image, but make another