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Disk Utility Partition Failed With Error Invalid Request

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Verifying and repairing partition map for “LaCie XtremKey Media”Checking prerequisites Problems were encountered during repair of the partition map Error: Some information was unavailable during an internal lookup. On the right hand side, First Aid is all grayed out, but Erase is operational. Try then to erase, Mac OS Extended (Journaled) format, with Fastest Security Optiion, I get "Disk Erase Failed with the error: Unable to write to the last block of the device". All postings and use of the content on this site are subject to the Apple Support Communities Terms of Use. navigate here

And plaster the web with bad reviews describing the one you have and LaCie’s failure to support it. I did that several times. The procedure involves visiting a Chinese site (to get ChipGenius to reveal the VID, PID and Controller chip part number), and and Russian site to get the flash tool for such It is an older powerstrip. https://discussions.apple.com/thread/3476709?tstart=0

Disk Utility Partition Failed With The Error Couldn't Unmount Disk

thanks. Please help. Report Sam- May 26, 2010 08:54PM HUGE HELP!!!!!!! Did anybody find a fix?

Related This entry was posted in Troubleshooting and tagged Disk Utility, diskutil, format, Hard Drive, OS X on April 5, 2014 by Topher Kessler. Just to see if working in Recovery Mode makes a difference, I tried to Partition again and it started with "Unmounting disk" but ended after a bit of time with the An attempt will be made to connect this device to the best available host controller. Mac Disk Utility Partition Failed I had the identical problem in formatting a Seagate 1T drive, so the partition options, middle button did the trick.

The problem is specific for USB connections, since those with drives that allow for alternative connections (e.g. ARGH! Please help a new mac user with this...God, I miss my PC! And it may be—until you need it.

Reply Raf says: November 14, 2012 at 10:58 am Hello, I have a problem with this. Disk Erase Failed With The Error Couldn't Unmount Disk GeekOutTech 278.025 weergaven 2:52 Mac OS 10.8.4 Partitioning failed - need HELP - Duur: 1:46. Je kunt deze voorkeur hieronder wijzigen. I also left such activity running for about four hours (doing nothing else on the Mac).

Disk Utility Partition Failed Couldn't Open Device

But I found you and all is right in my mac world again. http://osxdaily.com/2012/03/05/fix-partition-failed-error-mac/ Have you ever tried to erase or format a drive for whatever reason and got the error "Disk Erase Failed With The Error: Invalid Request"? Disk Utility Partition Failed With The Error Couldn't Unmount Disk Nothing worked, hence my request for assistance. Disk Utility Partition Failed File System Formatter Failed If DU can see the disk, it will still be unmounted and should not be seen as busy.

Report skidmedia- Oct 31, 2008 07:59PM Let me add my "thank you" to all of the others!! check over here Lloyd Smith September 15, 2016 at 11:23 am A long time to reply, but when someone assumes that the person they are responding to is pretty much a dullard and finally When the screen went black for a minute, I lost hope, however, having a successful partition, priceless!!!! Jefferson Le Blanc April 16, 2014 at 2:03 pm MaX: I see one other possibility: You might try using those utilities on a newer version of Windows - on an actual Disk Utility Partition Failed Unable To Write To The Last Block Of The Device

THIS IS THE KEY: There are 3 radio buttons in the popup window for formatting options. Type; sbin/fsck -fy. I attempted your fix and did as you instructed and still had the same error message come up. his comment is here Had issues after installing Yosemite public beta on a partition.

Invalid volume free block count (It should be 63457968 instead of 47085599) After that, it repaired it and checked it again. Disk Erase Failed With The Error Couldn't Open Device Larry August 2, 2015 at 8:19 pm Hi Jeff, No, don't have DiskWarrior and, given buying it would actually cost me more than a replacement drive, I don't plan on buying It can fix far more than Disk Utility and might be able to restore your volume's file catalog to the point where you can use it.

It was after trying these options yesterday that I then resorted Topher's posts and tried all of the possibilities suggested.

But they are Windows apps - you'll need access to a Windows PC or a virtual machine in Parallels of VMWare Fusion. I was struggling with it myself too. So what I did was to identify the process that the OS was running using ‘ps aux | grep /dev/disk2', which gave me: root 2505 100.0 12.6 3511284 1053484 ?? Volume Erase Failed Couldn't Modify Partition Map WeergavewachtrijWachtrijWeergavewachtrijWachtrij Alles verwijderenOntkoppelen Laden...

Just what I needed! I bought 1T WD My book external disk and I must admitt that I had the same trouble like dandan. This video was deleted. http://darrenmanning.com/disk-utility/disk-utility-partition-failed-input-output-error.html Alternatively, you can try placing the command in a looping script and then run the script as root, to apply the command as fast as possible: 1.

Report brage- Jul 25, 2008 12:26PM Cheer mate, works like a charm!