Disk Utility "frozen" trying to format external drive
some help please...
I've got a 120gb external USB/NDAS drive that was previously formatted in NFTS on a Windows XP machine. Using Disk Utility on my new MacBook, I attempted to erase it and reformat it using the "MS-DOS" option in Disk Utility (so I can use it on both OSes). I got the spinning beach ball for several hours, at which point I forced-quit Disk Utility. The drive is now unseen by Windows, and when I plug it into the MacBook, it tells me it can't be mounted, so I choose initialize. When I attempt to either erase or partition the drive for MS-DOS, I get the beachball. I left it overnight to see if it was just taking a while, and no difference.
What next? Should I try formatting it for Mac and then reformatting MS-DOS/FAT32 and see if that works?
Thanks in advance...
I had a similar problem with an older drive, eventually I did get it formatted using my iBook, but it wasn't worth it as the drive failed completely several months later (at the most inconvenient time, of course). If the drive is older than 3 years it might be on its last legs and you would be better off to buy a new drive anyway.
Francine
Francine
Schwieder
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External USB Drive hangs Disk Utility when trying to Format
Hello Everyone,
I have a Maxtor DiamondMax 10 300gig hard drive in an enclosure connected to my iMAC via USB. The drive was previously used on an Win XP pc and worked fine. I want to format it and use it as a backup for my MAC. When I plug in the drive, OS X says that it can't read the drive and asks if I want to initalize it. I go ahead and select 1 partition Extended Journaled and hit go. The Maxtor spins up for a few mins and then the colour wheel shows up and the Disk Utility shows not responding and the light on the Maxtor goes off. I have to force quit to get the Disk Utility to shutdown. I can format and parition the drive no problem on the XP pc. Any help would be greatly appreciated.
RemI also had a problem initializing and partitioning a new Seagate Barracuda 400GB drive with the NexStar GX (NST-370GX) external USB enclosure as described above. Neither my G4 MacBook Pro or my Mac Mini Dual core could initialize or partition the enclosure/drive. I could however hook the enclosure up to my XP machine, format it using NTFS, and access (read) the drive on my Mac Mini just fine. I didn't check it on the laptop though after formatting it using XP. This still was unacceptable.
After doing some searching online, I discovered this post on 123macmini.com:
http://www.123macmini.com/forums/viewtopic.php?t=2629
where the post points out that the NexStar GX enclosure is a rebranded Macpower M9-LX. Then I discovered on the Macpower site:
http://www.macpower.com.tw/products/hdd3/m9/m9lx
that the enclosure is not compatible with any Seagate Barracuda drive greater than 160GB. Doh!
After swapping out the Barracuda drive for a 300GB Western Digital drive I could then initialize, partition, and use the enclosure on my Mac Mini without any problem.
I was using OSX 10.4.7
I hope this helps others out there with the same configuration.
Ctut -
Hi. Trying to connect iomega ext. HD. i have to reformat for Mac. When i plug in & go to Disk Utility,the external shows up and i'm supposed to click "partition". When i do, a box comes up saying ""Disk Utility has lost its connection with the Disk Management Tool and cannot continue. Please quit and relaunch Disk Utility." I quit and relaunched, same results. After googling my question, i came up with this:
"Disk Utility has lost its connection with the Disk Management Tool and cannot continue. Please quit and relaunch Disk Utility."
(Quitting and reopening Disk Utility does not help.)
The following also appears in Console log:
*** malloc[419]: Deallocation of a pointer not malloced: 0x290a410; This could be a double free(), or free() called with the middle of an allocated block; Try setting environment variable MallocHelp to see tools to help debug : for architecture i386 object: ./Applications/iTunes.app/Contents/MacOS/iTunes malformed object (unknown flavor for flavor number 0 in LC_UNIXTHREAD command 27 can't byte swap it)
Workaround
Quit Disk Utility.
From the Finder's Go menu, choose Go to Folder....
Type the following, then click OK: /Library/Receipts
Temporarily remove these iTunes receipts from /Library/Receipts (sort the folder alphabetically as a list):
iTunes.pkg
iTunes4.pkg
You can put them on the desktop, for example. Do not remove iTunesX.pkg or iTunes Phone Driver.pkg.
Open Disk Utility and repair disk permissions again.
Quit Disk Utility.
Put the removed iTunes receipts back in /Library/Receipts.
Note: This issue does not affect Disk Utility's verify or repair disk features.
All seemed good, for a moment, until, upon going back to Disk Utility after removing itunes4.pkg and putting on desktop (i did not have itunes.pkg to remove) the same thing was happening. When i highlite my iomega ext. on left of page, disk perrmissions is grayed and does not allow me to click on it. Same problem from the start. Can somebody please help me out here? That would soooo awesome. Thanx!i'm just scared i will do something wrong on my own and lose my data.
You shouldn't be scared of that, because you should already have backups. If you don't have backups, then backing up is the first priority.
Insert the Snow Leopard DVD and restart. When you hear the chime, hold down the C key and keep holding it until the Apple logo appears on the display. You should now see the language selection screen. Select your language, then choose Utilities > Disk Utility from the menu bar. In the Disk Utility window, select the external drive (not the internal). The drive may already have a data partition, in which case there will be another icon below the drive icon. Choose the drive icon, then select the Partition tab. Create a single partition with the default options (GUID partition table, Mac OS X Extended Journaled).
When the partitioning is done, select the startup volume on your internal drive in the DU window. Select the Restore tab. Drag the icon of the startup volume to the "Source" field. Then drag the icon of the newly-created volume on the external drive to the "Destination" field. Make sure you have this right. Then click the Restore button, and the data on your startup volume will be copied to the external drive. -
Trying to format external drive
Hi,
I am trying to format an external 1TB Maxon hard drive for use with my airport extreme as a wireless Time Machine backup. I plug it into my Mac Pro through usb and run Disk Utility, select the drive, select Erase, select Mac OSX Journal, select Zero Out Data and run it.
Well, after doing this twice now, and after each process taking around 13 hours I keep getting "Disk Utility Lost Connection" Error message. Is the drive bad? Is there a way to do a quicker erase and format?
I checked the forums and this seems to be an issue from back in 10.3?? Also, I just installed an internal 1TB in my Mac Pro and went through the same steps, works great, took about 2-3 hours for the whole process??
Any help would be appreciated.Follow this procedure:
Extended Hard Drive Preparation
1. Open Disk Utility in your Utilities folder. If you need to reformat your startup volume, then you must boot from your OS X Installer Disc. After the installer loads select your language and click on the Continue button. When the menu bar appears select Disk Utility from the Installer menu (Utilities menu for Tiger or Leopard.)
2. After DU loads select your hard drive (this is the entry with the mfgr.'s ID and size) from the left side list. Note the SMART status of the drive in DU's status area. If it does not say "Verified" then the drive is failing or has failed and will need replacing. SMART info will not be reported on external drives. Otherwise, click on the Partition tab in the DU main window.
3. Set the number of partitions from the dropdown menu (use 1 partition unless you wish to make more.) Set the format type to Mac OS Extended (Journaled.) Click on the Options button, set the partition scheme to GUID (only required for Intel Macs) then click on the OK button. Click on the Partition button and wait until the volume(s) mount on the Desktop.
4. Select the volume you just created (this is the sub-entry under the drive entry) from the left side list. Click on the Erase tab in the DU main window.
5. Set the format type to Mac OS Extended (Journaled.) Click on the Options button, check the button for Zero Data and click on OK to return to the Erase window.
6. Click on the Erase button. The format process can take up to several hours depending upon the drive size.
Steps 4-6 are optional but should be used on a drive that has never been formatted before, if the format type is not Mac OS Extended, if the partition scheme has been changed, or if a different operating system (not OS X) has been installed on the drive. -
Disk Utility is completely worthless with external drives
I've tried two different drives now on both Leopard and Tiger. Any time I try to do anything at all with the drive it beach balls and I have to force quit Dick Util. I just want to format/partition one of my hard drives -- something I've done hundreds of times successfully in my life. This is ridiculously frustrating. I've read that the "input/output" error is a bug in Leopard. Extremely disappointing. How can something as fundamental as formatting/partitioning be left unfixed? My wife has an iBook with Tiger and I get the same beach ball.
This is really ******* me off. How can I partition my drive(s)? All I have access to is OS X (Tiger and Leopard). Normally this is a good thing, but not today.Thanks for the help. I'm not sure what the name of the volume is, though. I put in the "Media name" from Disk Utility.
Here's what the terminal spit out:
$ diskutil repairDisk /Volumes/"WDC WD12 00JB-00EVA0 Media"
Disk Utility Tool
Usage: diskutil verifyVolume MountPoint|DiskIdentifier|DeviceNode
diskutil verifyDisk MountPoint|DiskIdentifier|DeviceNode
diskutil repairVolume MountPoint|DiskIdentifier|DeviceNode
diskutil repairDisk MountPoint|DiskIdentifier|DeviceNode
Verify or repair the file system data structure of a volume.
Ownership of the affected disk is required.
VerifyDisk and repairDisk are allowed but deprecated synonyms for
verifyVolume and repairVolume, respectively.
Example: diskutil verifyVolume /Volumes/SomeDisk -
Disk Utility assigns incorrect identifier to external drive
Hi, I am running 10.7.5, I backup my notebook to a 500GB drive using Time Machine, after a recent backup my 2TB drive is labled as the 500GB BACKUP drive in disk utility and not mounted under finder. I tried everything. I am unable to unmount the drive in disk utility, disk info insists it is a 500GB drive, TERMINAL drive info insists the drive is also a 500GB drive.
I am assuming drive data is stored somewhere on my local OS and this reference table became corrupted, there is no way a 2TB drive can now become a 500GB BACKUP drive overnight. Using TERMINAL I can open and view the content on the disk. Funny thing is the 2TB drive is a WD and the 500GB is a Seagate, Disk Utility gets this info right, but otherwise insists the drive is my Time Machine backup drive and Time Machine wants to write a backup <- I turned this off for now in fear that Time Machine will reformat the disk and I will loose data on my 2TB drive. Reformating the 2TB drive is not an option, verifying the disk claims it requires repair, not an option. All I need is the drive to lablled correctly so all the processes can assume as normal.
I am 100% sure Apple has terminal command to repair the local OS disk reference table so all external drives can be relisted (meaning reidentified) correctly.Also worth noting that, if your drive has a FireWire interface, use that instead of USB. While the theoretical max speed of USB2 is faster than FireWire 400, in real-world conditions FW will blow the socks off USB. And if you're purchasing an external drive, it repays on the long run to pay a little more to purchase one with FW. And, of course, if FW400 is faster, FW800 is out of sight.
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Disk Utility does not recognize ethernet external drive
I recently purchased a lacie ethernet external drive 1.5Tb to use with time machine and need to partition it. I mount the drive and open up disk utility, but it does not show up there. Any suggestions?
You cannot partition and format a drive over the network. You will need to connect the drives directly to your computer first in order to partition and format them (unless that's already been done at the factory.) Read the documentation that came with them product or contact LaCie's tech support.
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Disk Utility: Backup to partition on external drive?
Hi people. Would be glad of an answer and any comments on this.
I have 3 Macs at home, a new G5 dual core and 2 G4 imacs, networked wirelessly. At this point I only backup my G5 to a second internal HD, by using Disk Utility's 'Restore' function.
My preferred plan is to get an external Firewire 400 drive, make 3 partitions on it, and do the Disk Utility 'Restore' for the 3 respective Macs. That way it's not only a backup, but a bootable solution if one of the machines dies.
My second choice is to add one of those generic network hard drives to the router and try to back up to that(essentially as an FTP/Samba disk), but it would be slow and not bootable at all.
Question: Will disk utility allow a partition, either on a firewire drive or network drive, to be the destination for a 'restore'? Or will it only recognise whole volumes?Hi, Daniel.
You wrote: "Question: Will disk utility allow a partition, either on a firewire drive or network drive, to be the destination for a 'restore'? Or will it only recognise whole volumes? "Disk Utility will recognize a volume (partition) on a FireWire drive as the destination for a Restore.
Using the Restore function for backup is quite time-consuming as it has to backup everything every time you perform a backup. You will get much faster results by using a proper Backup and Recovery solution that supports incremental backups, i.e. backing up just the changes from the source to the destination (backup) so that the two are synchronized. For advice on the backup and recovery solution I employ, see my "Backup and Recovery" FAQ.
People have had mixed results using NAS (Network-attached Storage) for backups. I frankly think that it's still a bit early to try that route. Using an external FireWire drive has always given be good results.
Good luck!
Dr. Smoke
Author: Troubleshooting Mac® OS X
Note: The information provided in the link(s) above is freely available. However, because I own The X Lab™, a commercial Web site to which some of these links point, the Apple Discussions Terms of Use require I include the following disclosure statement with this post:
I may receive some form of compensation, financial or otherwise, from my recommendation or link. -
Can Disk Utility get SMART status from external drives?
I recently updated my backup plan with a NewerTech quad-interface dock and a WD Caviar Green hd. I'm using the FW800 interface to connect to my iMac (10.6.7) Everything works perfectly, as expected. I noticed, though, that Disk Utility cannot report the SMART status on the new WD drive. DU simply says "Not Supported" under SMART Status.
Is Disk Utility telling me that it doesn't read SMART status from external drives? Or is it telling me that the new drive doesn't support SMART (which I would find highly unusual)? And, if it's Disk Utility that can't read the status, are there any third-party apps that can report the SMART status on an external drive?
Thanks,
JimCUnfortunately I cannot speak to the NewerTech enclosure, but in principle it appears to be possible to have SMART information displayed even for external drives if the enclosure's bridge controller chip allows it.
My experience:
I've used two MacPower Pleiades FW800/400/USB/eSATA enclosures for several years and I've now supplemented them with two additional inXtron enclosures. They all work as expected daisy-chained to the iMac.
The interesting thing is that the inXtron enclosures came with a CD with some software on it ("Smart AP") which is not available for download, notably a Dashboard Widget for displaying actual and maximum temperatures, total hours of operation, start/stop cycles, drive model and serial number.
This widget is complete garbage, though – it is a nauseating nightmare of extreme over-design at the expense of even basic usability:
http://www.inxtron.com/information-center/smart-ap-for-external-hard-drives
To make matters even worse, it can only display the above information for the first external drive connected.
BUT: This Widget internally calls a command line utility which does the actual parameter retrieval, and that one can be called from the terminal as well.
So after installing the software from CD and effectively discarding the Widget, I checked out the command line utility in the Terminal and found that this utility actually reported data about ALL my enclosures, both the inXtron and the MacPower ones (there seems to be firmware compatibility across these):
(The '$' is supposed to be Terminal's bash prompt – type in only the rest of the respective line.)
$ /Applications/MacpowerAP/GetSMART 1
29 50 13 8
53 67 645 15829
52 53 90 7105
51 52 18 13
Each line reports the following for one connected enclosure:
[temp] [maxtemp] [cycles] [hours]
The drives are reported first USB, then FireWire drives, each in the order of first connection / mounting.
$ /Applications/MacpowerAP/GetSMART 2
WD-WCA**************
WDC WD30EZRX-00MMMB0
5TE09***************
ST31000333AS-00MMMB0
5TE09***************
ST31000333AS-00MMMB0
WD-WMA**************
WDC WD30EZRS-00J99B0
Each drive gets two lines reported, first the drive's serial number ("***" blocking out my exact ones), then the drive model.
$ /Applications/MacpowerAP/GetSMART 3
29 50 13 8
WD-WCA**************
WDC WD30EZRX-00MMMB0
53 67 645 15829
5TE09***************
ST31000333AS-00MMMB0
52 53 90 7105
5TE09***************
ST31000333AS-00MMMB0
51 52 18 13
WD-WMA**************
WDC WD30EZRS-00J99B0
This combines both of the above.
$ /Applications/MacpowerAP/GetSMART 5
disk4
disk1
disk2
disk3
This reports the mounted disk names (referring not to the volume names but to the internal Unix names as in /dev/[drive]); Numbering is in connection / mounting order, the actual sequence is as always USB drives, then FireWire drives.
$ /Applications/MacpowerAP/GetSMART 6
USB
1394
1394
1394
This reports the connection interface for each drive in the same sequence as all other commands.
$ /Applications/MacpowerAP/GetSMART 7
MPT934DS1.20.0104.00
MPT934DS1.20.0104.00
This might report the firmware revision or something like that.
These are the commands I know about, and they apply only to the "Smart AP" software supplied with current inXtron enclosures, but it may be possible that other brands use it as well.
I have not been able to identify information about the self-test (early(?) failure warning), but it might be contained as well in the data reported above.
As always, your mileage may vary and you should never do such experiments without FIRST making sure you've got backups of your data and that such backup is not connected during experimentation!
Maybe this can help some people getting the information they need; And maybe there are similar capabilities with other enclosures. At the very least it demonstrates that with the proper firmware in the enclosures themselves and some software on the Mac it IS possible to get at least some of the SMART information from the drive in an external FireWire- or USB-connected enclosure.
None of that is fed into the system's "official" SMART mechanism, though, so no luck using standard mechanisms or applications for it. It's strictly a command-line affair (deservedly disregarding the mishappen Widget).
Good luck! -
Not enough disk space on a Windows-formatted External Drive?
I keep getting 'not enough disk space' message in Tiger when trying to back up my data to an external HD, formatted for windows (I share it with Bootcamp-based windows partition).
Now, the disk is 100 GIG and I'm only trying to back up 10 GIG. The disk is almost empty, and the disk's trashcan is empty.
I had same issues with a flashdisk at my father's. It was 2 GIG, and I was copying 500 megs of pictures. OSX kept telling me the disk didn't have enough space! Embarrassed, I had to copy photos in batches of 20. Of course, my Mac was ridiculed thoroughly.
I appreciate any help!Hello,
Your problems may very well be related to the NTFS file system used by Windows.
The Mac OS has very limited support for NTFS partitions. It cannot write them at all. And, it only supports reading to a limited extent.
If you want to be able to read and write Windows formated partitions, you should be using the FAT32 format for your Windows drives. The Mac OS can read and write FAT32 drives without any trouble.
But, there are some Mac OS files and archives that absolutely cannot be written to a FAT32 drive either. So, you cannot backup your entire Mac OS hard drive to a FAT32 drive.
The Mac OS "PKG" file type will usually refuse to be written to a FAT32 drive. And, there are a lot of PKG files in the Mac OS installation. And, many of the software update downloads are also in PKG format.
If you want to backup your entire Mac OS hard drive to another drive, then that drive will also need to be formatted as a Mac OS X Extended volume.
But, if you are just wanting to share files between a Mac OS X and Windows XP installation, then you can safely use FAT32 for that shared drive / partition.
I hope this helps.
As for the comments that you endured, you should have asked him if his PC would even try to read a Mac OS formatted drive / disk. See how much laughing he does then.
Now, there are special programs that will enable Windows to read Mac OS disks. But, Windows cannot do it on it's own.
But, that brings us to another option for you. If you wanted to have all your other partitions fully compatible with the Mac OS (as in formatted as Mac OS X partitions), then you could do that. Then, use a program such as MacDrive on your Windows XP installation to enable you to read and write the Mac OS formatted partitions.
You can read more about that here:
http://www.mediafour.com/products/macdrive6/bootcamp.asp
I hope this helps. -
Disk utility wont format external drive
Hi all
I have a friends 1 TB toshiba external drive, purchased at office works. I am trying to format it for NTFS so he can use it to watch the movies he is copying on any machine, xbox etc..
using disk utility I am erasing the 1tb drive with the NTFS format option, then I am creating the partition with NTFS but after formatting, it is only allowing me to read. I have tried formating the hard drive with Mac OSX journaled and then creating the partition at 1tb with NTFS, but getting the same issue.
I am a little confused as I just did the same thing with my 2TB drive I purchased from Office works as well.
any ideas?
bretHi Bret. I am not sure I fully understand the details of your problem - the mention of another drive (the 2TB one) confused me a little. I'll try to help though because it doesn't look like anyone has had a chance to reply to your question yet.
As far as I can see, OS X doesn't write to NTFS formatted drives by default. It appears you can enable it by altering the mount options, e.g. http://learnaholic.me/2013/11/11/enable-ntfs-write-on-mac-os-x-mavericks/
Alternatively, perhaps just formatting it as FAT32 would achieve your aim - although now that I check, it doesn't really look suitable as it has a 4GB file size limit and some of the movies could be over that.
Hope that helps.
Ivan -
Disk Utility and DiskWarrior trouble with external hard-drive.
I got an external hard-drive that doesn't show up on finder. On both Disk Utility and DiskWarrior it keeps mounting and unmounting. Disk Utility when trying to repair, spits this out when it unmounts...
2011-07-28 22:43:43 -0700: Problems were encountered during repair of the partition map
2011-07-28 22:43:43 -0700: Error: Some information was unavailable during an internal lookup.
2011-07-28 22:43:43 -0700: : Some information was unavailable during an internal lookup.
2011-07-28 22:43:43 -0700: [DUDiskController mountDisk] expecting DUDisk, but got nil
On DiskWarrior it simply says 'Directory cannot be rebuilt due to disk hardware failure (-36,2747)
Earlier today it would stay mounted and Disk Utility would spit out...
Verify and Repair volume “Back-up Hard Drive”
Checking file systemChecking Journaled HFS Plus volume.
Checking extents overflow file.
Checking catalog file.
Invalid sibling link
Rebuilding catalog B-tree.
Invalid node structure
The volume Back-up Hard Drive could not be repaired.
Volume repair complete.
Updating boot support partitions for the volume as required.
Error: 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.
while DiskWarrior would try to fix it, but on
Step 5: Locating directory date...
Speed reduced by disk malfunction: 339,474, er make that 340,239, er make that 341,327
and I finally gave up there.
I try to fix the Invalid sibling link error via Terminal and I get this...
imac-2:~ Migrated$ fsck_hfs -r /dev/disk2s2
** /dev/rdisk2s2 (NO WRITE)
Can't open /dev/rdisk2s2: Resource busy
Is there ANY THING I can do to get it to stay mounted and possibly fix this? This is my back-up hard-drive!!It's the cord that's being used that decides if it shows up, or if it shows up and then goes away over and over. Using a cord where it stays on in the programs, when I run Disk Utility of the darked out part of the hard-drive, it spits out...
Verifying and repairing partition map for “MICRONET”
Checking prerequisites
Checking the partition list
Checking for an EFI system partition
Checking the EFI system partition’s size
Checking the EFI system partition’s file system
Checking all HFS data partition loader spaces
Reviewing boot support loaders
Checking Core Storage Physical Volume partitions
Updating Windows boot.ini files as required
The partition map appears to be OK
while the part of the disk just below it that's light spits out
Verifying volume “Back-up Hard Drive”
Checking file system
Error: This disk needs to be repaired. Click Repair Disk.
Verify and Repair volume “Back-up Hard Drive”
Starting repair tool:
Checking file system
Volume repair complete.
Updating boot support partitions for the volume as required.
Error: 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.
Disk Utility stopped repairing “Back-up Hard Drive”: 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.
while DiskWarrior tries to rebuild it and spits out a memory error. -
Disk utility error when erasing an external hard drive
Hi,
Not sure if this is the most appropriate fourm list to post this but I thought I'd give it a try.
I am running snow leopard on my MBP and am trying to use disk utility to erase and format an ext. HD. While the disk icon does not show up on the desktop when I connect it to my mac, Disk utility does show the ext. hd in the left column, but no matter what format I try, even just using one partition and selecting zero out all data, I get the following error: "disk erase failed with the error: POSIX reports: The operation couldn't be completed. Cannot allocate memory".
Is the hd dead? Are there other options? I do have disk warrior, version 4.1.1 and it does not regonize the ext. hd.
Please advise.
Thanks,Thanks for the reply. Yes, I did select the ext hd as the one I wanted to erase (my internal hd is my start up drive). After I selected the ext hd, (there is no volume listed under it so the only thing I can select is the hd itself). that is when I selected erase and then Mac journaled, then named the hd and then after selecting erase, I got the error. Also as a matter of note, if I select firstaid, both the repair and verify permissions are dimmed, so I can't even try to repair the disk. That is when I tried disk warrior hoping that could examine the hd, but since it is not mounted on the d/t, it doesn't show as a drive to check. I don't understand why the ext hd shows up in disk utility, but not the d/t. Also of note is the fact that when I connect that ext had to my Mac with a fw cable, a window opens saying that the drive is not readable and do I want to initialize it or ignore. I choose to initialize and that is when I get the error. Also of note is that I have tried both security options of "don't erase data" and "zero out data" and still get the same error.
Hope this clarifies things a bit. -
In disk utility, it shows that my external hard drive is somehow unmounted and I can't access it in finder or repair it in Disk Utility. How can I get this working without losing my important data?
Thank you!When you erased the disk did you select Mac OS Extended Journaled as the format option?
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In disk utility, how do i format new external ssd for mac mini?
In disk utility, how do I format a new external SSD for late 2009 Mac Mini?
Format it as: Mac OS Extended (Journaled)
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