Restore Dmg Could Not Validate Source

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Sudo asr restore -source /dev/disk4s5 -target /dev/disk5s1 -erase: Validating target.done: Validating source. The source volume cannot be restored because it has a broken seal: Could not validate source. Oct 10, 2009 Mountain Lion (10.8) seems to prevent -noverify from working. I tried: “sudo asr restore -noverify -source /Downloads/image.iso -target /Volumes/Untitled -erase” on Mountain Lion and asr outputted this: ” Validating targetdone Validating source Could not validate source – Invalid argument”.

Could not validate source - Operation not supported' kept appearing in Disk Utility as I tried unsuccessfully to restore a bootable USB flash drive image to a new USB flash drive. The asr workaround did not work either, returning Source volume format on device '/dev/disk3' is not valid for restoring. Could not validate source - error 254.

By happy chance, I stumbled onto Max's answer which credited drgeoff's reply, which linked to PureDarwin's Disk images page. The secret was to convert the image format to raw before writing with dd (attempting to restore even the converted image via Disk Utility returned the same 'Restore Failure' error above).

Here is the process I used to backup my DiskWarrior bootable USB flash drive and restore it to a new flash drive:

Backup

  1. Insert USB flash drive to be imaged
  2. Open Disk Utility
  3. Click root of USB flash drive
  4. Click 'New Image'
  5. Select desired Image Format (tested restore of 'read-only' and 'compressed (bzip2)' images successfully)
  6. Save image to desired location

Restore

  1. $ hdiutil convert /path/to/image_created_above.dmg -format UDTO -o new_image.img
  2. Remove the .cdr extension that hdiutil automatically appended to new_image.img
  3. Run Disk Arbitrator and set to 'Block Mounts'
  4. Plug in new USB flash drive (WARNING: all contents will be erased) and note the assigned device name in Disk Arbitrator's Disks Window (e.g., diskx)
  5. $ sudo dd if=/path/to/new_image.img of=/dev/rdiskx bs=8192
    (Pipe through pv or use a dd alternative like dcfldd to easily track progress.)

In retrospect, it might've been better to avoid Disk Utility altogether and simply use dd to create the image:

$ sudo dd if=/dev/rdiskx | bzip2 -9f > usb_image.bz2

obviating the need to convert with hdiutil before restoring:

$ bzip2 -dc usb_image.bz2 | sudo dd of=/dev/rdiskx

UPDATE: It appears that dd/bzip2 creates a more faithful image than Disk Utility's compressed (bzip2) format does:

  • The image created using dd and bzip2 was 810.7MB vs. 626.6MB for the compressed (bzip2) image created by Disk Utility.
  • The MD5 checksum of the USB flash drive differed based on which image file was restored to it, so the difference in file sizes was not merely some difference in the compression algorithm (which should have been the same anyway).
  • When the dd-created image was restored and the USB flash drive plugged in, it mimicked the original DiskWarrior flash drive's behavior (only the /Volumes/DW Finder window automatically opened).
  • When the Disk Utility-created image was restored and the USB flash drive plugged in, Finder windows automatically opened for both /Volumes/DW and /Volumes/DiskWarrior Recovery (unlike the original DiskWarrior flash drive).

For Disk Utility to achieve similar results as dd/bzip2, one would need to select 'entire device' as the Image Format and then compress the image afterwards in Terminal: $ bzip2 -9f usb_image.dmg > compressed_usb_image.bz2. And, before restoring the image, it would need to first be converted with hdiutil as shown above. Back to dd for imaging disks!

/mac | Mar 19, 2015

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Have you being confused after seeing could not validate source – invalid argument? This type of error may come across when there is problem with disk utility by someway or the other. No wonder disk utility assists as a great utility through which one can resolve minor issue regarding the hard drive. But what would happen in the case of disk utility failure, user will have to face problem like could not validate source – invalid argument. Restarting the system can be taken as primary approach or first aid step to troubleshoot the issue incorporated with disk utility. However in case of severe issue one should go with reformatting and installing OS X again from the original boot-able disk. And in case of data loss after could not validate source – invalid argument issue resolved, go with Mac recovery through either way. First of all look for sufficient hard drive backup if available. Else Mac Data Recovery Software really is the eminent way of regaining corrupted, formatted or lost data effectively. It is developed with all the latest and robust recovery techniques through which any troublesome situation can be resolved easily. Hope you would fix could not validate source – invalid argument now!!

An Introduction to Could Not Validate Source – Invalid Argument

Although Mac OS X is quite reliable, but still it is not free from glitches. Sometimes, users also have to face Could Not Validate Source – Invalid Argument issues unexpectedly. It is one issue that continues to bother irrespective of the Mac versions you might use. Eventually, as a result of it, Mac system fails to process all your request and may crash severely. What more, due to Could Not Validate Source – Invalid Argument issue, users also have to face some difficulties while accessing their hard drive files and other installed apps, which really presses a panic button at times. Wait that’s not the end, it has also been reported that system’s processing speed might get slow and even terminate abruptly, which may result in total loss of saved data on Mac. If you are also in the same situation and looking for Could Not Validate Source – Invalid Argument solution then you need not worry because you will find complete guide to fix Could Not Validate Source – Invalid Argument issue.

Could Not Validate Source – Invalid Argument: What are the Causes for Data Inaccessibility

There are various reasons behind the emergence of Could Not Validate Source – Invalid Argument creating panic situation. Any inconsistencies pertaining to Mac OS X files system might result in corruption of data thus making it completely inaccessible. Let’s take a look at some of the probable reasons for the same.

Human mistakes: It might be due to unintentional mistakes such as accidental deletion, formatting mac files and volumes during normal course of operation

Emptying Trash: Many a time users might empty their trash files without cross checking them, which might result in complete wipe of even important Mac data.

Sudden termination of system files: Some time due to power surge, Mac system gets terminated abruptly, due to which some of the files fail to mount and become unresponsive.

Interrupted read/write operation: The chances of Mac file corruption or deletion also takes place when we interrupt the ongoing read/write process in midway resulting in Could Not Validate Source – Invalid Argument situation.

Unintentional Formatting: Pressing wrong button will sometime lead to emergence of very critical Could Not Validate Source – Invalid Argument problem.

Sharing of data/file on unsupported platforms: Due to presence of unsupported platform, sometimes shared files becomes unresponsive and get corrupted.

Virus attack: Although Mac is considered lot more safe as compared to Windows but still few nasty viruses are being written for it. Downloading apps & other related files will lead to security issue, which further influence the entire file system.

Modification in BIOS setting: Sometime when we go for some changes into the BIOS sector it will lead to emergence of several erroneous situation related to Could Not Validate Source – Invalid Argument problem which you would never like to have.

Corruption in header file: Header file are one of the crucial file that contain entire information about the file that you are going to access. Hence, if there is a problem the requested file fails to respond and even generates Could Not Validate Source – Invalid Argument corruption messages.

Restore Dmg Could Not Validate Source

Catalog files node corruption: Catalog is the system generated file which keep record of file type and its recent accessing type.

Problem with boot sector: When there is a problem with boot sector, Mac system fails to load and as a result you are unable to access the stored data files and there arises Could Not Validate Source – Invalid Argument issues.

Kernel Panic issues: Like BSOD in Windows, Mac users might come across kernel Panic issues.

Improper installation of program: installing of unwanted apps & programs without checking its source and agreement.

Hardware or software issue: It is also a common factor that is quite responsible for Mac file corruption and in a lieu emergence of erroneous situation.

All the above mentioned reasons are the probable causes for inaccessibility of Mac data. Now a question arises that, how a novice user know about Could Not Validate Source – Invalid Argument ? Well, for your feasibility here are given some of the common symptoms.

Symptoms Related to Could Not Validate Source – Invalid Argument

  • The system will get terminated automatically after few minutes of working.
  • Slow & sluggish behavior of Mac system
  • The stored Mac file gets corrupted or damaged without any warning
  • Installed programs gets crashed or freezes frequently
  • The emergence of annoying error messages like “unable to find .dmg file”
  • “file not found”
  • “access denied”

Precautions & Tips For Avoiding Could Not Validate Source – Invalid Argument

There is a well known proverb that precaution is better than cure, this too is applicable in case of Mac data. In order to avoid Could Not Validate Source – Invalid Argument situation and keep all Mac files safe and secure, following tips might prove to be helpful. So, let’s have a look.

  • Stop using Mac at once if you do not want to aggravate Could Not Validate Source – Invalid Argument issue and go for inbuilt disk recovery option.

  • Never overwrite the free space created after deletion of Mac files.

  • Don’t restart the Mac as the deleted or corrupted data might get overwritten with some other file.

  • Do not switch off system by ejecting the power plug.

  • Avoid upgrading system files.

  • Do not share any new data after the deletion or corruption issue.

  • Search the Mac Trash files.

  • Avoid downloading software from untrustworthy or suspicious websites.

  • Always shutdown your PC properly.

  • Always keep your Mac system update with patches & security fixes to protect against software loopholes

  • Always have a proper & updated backup of your saved Mac files to overcome data loss and Could Not Validate Source – Invalid Argument issue.

At this juncture it has been commonly seen that the majority of users may lose their hope and get indulged in some expensive procedure for Could Not Validate Source – Invalid Argument issue. But, why to do so! If here available an effective solution for it.

Could Not Validate Source – Invalid Argument: Manual Method to Get Rid of It

In case of Mac file corruption resulting in Could Not Validate Source – Invalid Argument complications, follow this:

  • Search and launch “Disk Utility”

  • Click on “check file system”option

  • Wait till the scanning process gets over

  • Select the file that you want to mount it

2.If there is a problem with Mac file system due to Could Not Validate Source – Invalid Argument then you may try this

  • Insert the Mac Bootable CD/Flash drive and restart the PC.

  • Click on “Install Mac OS X” option.

  • Continuously press “C” button from your keyboard.

  • Accept the license agreement & select the desired language.

  • Choose the destination drive which has the problem. In general, click on “Macintosh HD”.

  • After that click on “Options” icon to select the installation method. Further, if you want to save your personal file folders, networking accounts & user accounts click on “Archive to Install” & select “Preserve Users and Network Settings.

  • Restart your Mac system and reply to configuration prompt.

Note: Attempting to fix Could Not Validate Source – Invalid Argument manually requires technical skills which newbie lacks. Even slight mistake might bring risk to data. So, it is recommended to take the help of Mac Data Recovery tool to rescue data in case of Could Not Validate Source – Invalid Argument issue.

Mac Data Recovery Software: Automatic Way to Resolve Could Not Validate Source – Invalid Argument Issue

No doubt, Mac data recovery software is an extremely simple and reliable tool that rescues data in case of its loss. It has also been noted that, the tool is quite effective in any case of data loss situation no irrespective of the reasons behind the corruption or deletion issues. Apart from that, its robust recovery algorithm performs thorough scanning of entire Mac hard drives either its internal or external and provide the users with optimum result.

Furthermore, Mac data recovery software has been well developed with layman prospective to provide simple working environment for the beginner users too. Another property of this very software is that, it can easily be installed and operate with minimal system resource utilization. In addition, due to all these effectiveness and meritorious work in the field of data recovery, the tool has gained 8 out of 10 rewards globally. Do not delay anymore, there is nothing as good as Mac data recovery software. Just download and install it to avoid Could Not Validate Source – Invalid Argument scenario.

Striking Features of Mac Data Recovery Software

Undelete Mac data: Reliable and advance tool to perform smooth recovery of Mac data/files in any Could Not Validate Source – Invalid Argument situation.

  • Developed with robust scanning & recovery algorithm to provide complete Could Not Validate Source – Invalid Argument solution.
  • Highly applicable in case of Mac data corruption/ deletion issue

Deleted volume recovery: Also works effectively in case of Mac system file corruption or erroneous situation

  • Enabled with advance inbuilt file searching and recovery features in a single click

RAW file recovery: Supports recovery of more than 300 popular files including spreadsheets, ZIP archives, RAR files, PPT files ,PSD files, RAW files,music files, videos, etc.

Lost partition recovery: Safe data recovery from NTFS, FAT, ExFAT, HFS, HFSX based Boot Camp Partitions

  • Works as a system start up in case of boot failure issue

  • Maintains and preserves the integrity of data

  • Also, provide the preview of scanned & recovered files along with the option to see the ongoing scanning process during Could Not Validate Source – Invalid Argument

  • Enable with resume recovery to later recovery of data from .dmg file format

  • saves recovered files at the user’s desired location

  • it is Cost effective

System Requirements for Mac data Recovery Software

  • Processor: Intel
  • Memory: 1GB
  • Free Space on Hard Disk: 50 MB
  • OS: OS X Mavericks 10.9, Mountain lion 10.8, Lion 10.7, Snow Leopard 10.6, Leopard 10.5, Tiger 10.4

Pros and Cons of the Software

Pros:

  • Very easy to use
  • Highly reliable
  • Scan and recover entire Mac hard drive data irrespective of circumstances
  • best to overcome and fix Could Not Validate Source – Invalid Argument

Cons:

  • Demo version can only be used to see the preview of recovered files.
  • licensed version is required for saving the recovered data on desired location.

Conclusion: Now there is no need to worry at all! You can easily be able to rescue Mac data irrespective of the circumstances behind Could Not Validate Source – Invalid Argument issue using an reliable and sophisticated Mac data recovery software.

Could Not Validate Source – Invalid Argument: Users Guide to Operate Mac Data Recovery Software

Step 1: Download and install Mac data recovery software to resolve Could Not Validate Source – Invalid Argument issue.

'Restore Failure - Tinyapps

Step:2 click on ‘Quick Recovery’ which is located below of the tab ‘Drive Recovery’.

Restore Dmg Could Not Validate Source Codes

Step 3: Select the Mac volume to be recovered by clicking on either “Volume recovery” or “formatted recovery” option for best Could Not Validate Source – Invalid Argument solution.

Restore Dmg Could Not Validate Source Code

Step 4: Now, click on start scan button.

Step 5: Wait till the scanning process gets over, after that a list of scanned files are displayed.

Step 6: Choose the file/folder or volume to be repaired and then select the desired location to save all recovered data and thus fix Could Not Validate Source – Invalid Argument problem.

Restore Dmg Could Not Validate Sources

Step:7 Progress bar will confirm the saving of selected files to the desired destination.