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a title. You can not post a blank message. Please type your message and try again. studio_ Level 1 (2 points) Q: Disk Erase failed with the error: Couldn't unmount disk. Running Mavericks I am running imgburn erasing disc Mavericks OX 10.9.1 and am trying to erase an external hard drive that error erasing disk error number has been partioned. I keep coming up with the error message "Disk Erase failed with the error: Couldn't unmount disk."

An Error Occurred Erasing The Disk

Any suggestions? iMac, OS X Mavericks (10.9.1) Posted on Jan 21, 2014 1:45 PM I have this question too Close Q: Disk Erase failed with the error: Couldn't unmount disk. Running Mavericks All replies

Error Erasing Disk Error Number (-69888

Helpful answers Page 1 of 4 last Next by Kappy, Kappy Jan 21, 2014 1:48 PM in response to studio_ Level 10 (271,524 points) Desktops Jan 21, 2014 1:48 PM in response to studio_ Eject the drive, wait a minute or two, then reconnect it. Try again. Helpful (3) Reply options Link to this post by studio_, studio_ Jan 21, 2014 2:11 PM in response to Kappy Level disk erase failed with the error 1 (2 points) Jan 21, 2014 2:11 PM in response to Kappy Hey Kappy, thanks for your reply! It was a no go though Helpful (0) Reply options Link to this post by Kappy, Kappy Jan 21, 2014 2:17 PM in response to studio_ Level 10 (271,524 points) Desktops Jan 21, 2014 2:17 PM in response to studio_ There must be something on the drive that has a connection to the internal drive, I think. Try booting from the Recovery HD:Boot to the Recovery HD: Restart the computer and after the chime press and hold down the COMMAND and R keys until the menu screen appears. Alternatively, restart the computer and after the chime press and hold down the OPTION key until the boot manager screen appears. Select the Recovery HD and click on the arrow button below the icon.Select Disk Utility from the list and click on the Continue button. See if this lets you erase the drive. Helpful (1) Reply options Link to this post by Dr.Mac., Dr.Mac. Jan 21, 2014 2:26 PM in response to studio_ Level 3 (636 points) Jan 21, 2014 2:26 PM in response to studio_ To list all the drives and their

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Disk Erase Failed With The Error Invalid Request

Schließen Dieses Video ist nicht verfügbar. WiedergabelisteWarteschlangeWiedergabelisteWarteschlange Alle entfernenBeenden Wird geladen... Wiedergabeliste disk erase failed with the error file system formatter failed Warteschlange __count__/__total__  Fix: "Disk Erase Failed With The Error: Invalid Request" WhyNotVideo211 AbonnierenAbonniertAbo beenden719719 Wird geladen... disk erase failed with the error couldn't open device Wird geladen... Wird verarbeitet... Hinzufügen Möchtest du dieses Video später noch einmal ansehen? Wenn du bei YouTube angemeldet bist, kannst du dieses Video zu einer Playlist hinzufügen. Anmelden https://discussions.apple.com/thread/5812340?tstart=0 Teilen Mehr Melden Möchtest du dieses Video melden? Melde dich an, um unangemessene Inhalte zu melden. Anmelden Transkript 41.517 Aufrufe 129 Dieses Video gefällt dir? Melde dich bei YouTube an, damit dein Feedback gezählt wird. Anmelden 130 14 Dieses Video gefällt dir nicht? Melde dich bei YouTube an, damit dein Feedback gezählt wird. Anmelden 15 Wird geladen... Wird https://www.youtube.com/watch?v=u6dnYe7TDMQ geladen... Transkript Das interaktive Transkript konnte nicht geladen werden. Wird geladen... Wird geladen... Die Bewertungsfunktion ist nach Ausleihen des Videos verfügbar. Diese Funktion ist zurzeit nicht verfügbar. Bitte versuche es später erneut. Veröffentlicht am 20.12.2014Have you ever tried to erase or format a drive for whatever reason and got the error "Disk Erase Failed With The Error: Invalid Request"? I did, and it gave me a headache. I found the solution so I wanted to make it easy for everyone else. Hope this video helps!This could also go the the error: Disk Erase Failed With The Error and/or Invalid Request but usually googled through "disk utility disk erase failed with the error invalid request" either way this would fix that problem.I created this video with the YouTube Video Editor (http://www.youtube.com/editor) Kategorie Praktische Tipps & Styling Lizenz Standard-YouTube-Lizenz Erstellt mit YouTube Video Editor Quellvideos Quellenangaben anzeigen Mehr anzeigen Weniger anzeigen Wird geladen... Anzeige Autoplay Wenn Autoplay aktiviert ist, wird die Wiedergabe automatisch mit einem der aktuellen Videovorschläge fortgesetzt. Nächstes Video Solu

to Disk erase failed. Couldn't unmount disk, then you may have to force an unmount through the terminal. Launch up Terminal.app (through /Applications/Utilities http://technology.siprep.org/fix-for-disk-erase-failed-couldnt-unmount-disk/ or through a Spotlight search). Then paste in the command: diskutil list to list out the different disks. You should see some disks appear like /dev/disk0, /dev/disk1, /dev/disk2. Find the one you want http://apple.stackexchange.com/questions/125965/unable-to-format-erase-hard-drive to force unmount. For this example, let's say it's /dev/disk2. Run a command similar to this one sudo diskutil unmountDisk force /dev/disk2 If you're prompted for a password, enter it (yes, your account disk erase does need to have administrative privileges). You should not physically unplug the drive. You should now be able to erase the drive. Author Alan SiuPosted on April 13, 2015Tags disk utility, diskutil, erase drive, mac, unmount 30 thoughts on “Fix for disk erase failed couldn't unmount disk” Randall says: July 14, 2015 at 9:12 am This worked perfectly for me! After searching for a very long disk erase failed time through forums of people suggesting basic things or trying to make others feel ignorant this solution worked! Thank you so much. I now have a useable disk where before it would not mount and could not be formatted or erased. Running OS X 10.9.5. I will be linking this solution to other forums in the future. http://technology.siprep.org/fix-for-disk-erase-failed-couldnt-unmount-disk/ Reply Bobby says: October 9, 2015 at 5:17 pm Excellent post! It worked the 1st time for me, and i also had to stumble across the interweb minefield before finding this solution. Thank you ! -Bobby Reply Lissett says: October 11, 2015 at 10:19 am Worked for me as well! Thank you so much 🙂 Very clear instructions! Reply Jason says: November 5, 2015 at 8:50 am I tried this method, but now it says "Forced unmount of disk2 failed: at least one volume could not be unmounted" Please help, I would like to erase my hard drive so i can do a clean install of el Capitan Reply Alan Siu says: November 5, 2015 at 9:04 am Odd. I've never seen that. I did Google your error, and came across this workaround. Give it a shot: http://emsooriyabandara.blogspot.com/2014/11/solved

Start here for a quick overview of the site Help Center Detailed answers to any questions you might have Meta Discuss the workings and policies of this site About Us Learn more about Stack Overflow the company Business Learn more about hiring developers or posting ads with us Ask Different Questions Tags Users Badges Unanswered Ask Question _ Ask Different is a question and answer site for power users of Apple hardware and software. 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 format / erase hard drive up vote 11 down vote favorite 3 I have an external HD that died on me a while ago and I'm trying to see if I can format / erase it to start using it again. The disk does not show up in Finder but I can see it in Disk Utility. When I try to erase it from there I get Disk Erase failed with the error: POSIX reports: The operation couldn’t be completed. Cannot allocate memory When I try to verify the volume: diskutil verifyVolume /dev/disk2 Error starting filesystem verification for disk2: Unrecognized filesystem (-9958) I've tried running a surface scan in Techtools Pro, it processed 650 blocks and all were bad. I cancelled the operation cause it was very slow. Diskutil info /dev/disk2 tells me: Device Identifier: disk2 Device Node: /dev/disk2 Part Of Whole: disk2 Device / Media Name: WD Ext HDD 1021 Media Volume Name: Escaped with Unicode: Mounted: No File System: None Partition Type: None Bootable: Not bootable Media Type: Generic Protocol: USB SMART Status: Not Supported Total Size: 2.0 TB (2000396746752 Bytes) (exactly 3907024896 512-Byte-Blocks) Volume Free Space: Not Applicable Read-Only Media: No Read-Only Volume: Not applicable (no filesystem) Ejectable: Yes Whole: Yes Internal: No OS 9 Drivers: No Low Level Format: N

 

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