External MAC dvd device will not mount

Worked fine yesterday. Today doesn't show up. I cant eject the dvd thats in it - no button on it and the eject key is grayed out.
Doesn't show up in Disk Utlities etc. Its like it isn't there.
Thanks for any advice.
Chris

Have you rebooted the computer?
Does the drive show in About this Mac>More Info>System Report under USB (assuming USB connection)
Maybe this to eject
If you can't eject a CD or DVD or open the drive tray

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Tried to move sparsebundle TM backup to External HD, now HD will not mount

Long story short, I have a Macbook Pro 15" i7. I was making backups to an apple time capsule via time machine. My internal HD crashed (making clicking noises, not booting), got it replaced by apple, thinking my backup would work. Sparsebundle file is not recognized by migration assistant and will not mount via Disk Image Mounter or Disc Utility. I attempted to move the sparsebundle file to an external drive (Avastor HDX-800 1.5 TB) via FW800. It was not making any progress so I stopped the copy, deleted the sparsebundle from my Avastor Drive and unmounted it.
Now my Avastor Drive will not mount at all. Disc sounds fine and has barley moved since the incident. The drive was backed up last week but there are some essential files I made within this week that are very important.
What can/should I do?

bglawe wrote:
Hey! Thanks so much for responding so quickly.
I am currently archiving my disc on the TC to an external USB drive so hopefully I should be able to repair that disc and get my sparsebundle to work.
You're doing that via +Airport Utility?+
My main problem is however that the FW drive that I briefly attempted to copy the sparsebundle to will not mount at all. Like when I plug the drive in, nothing happens. The Avastor FW drive has FW800 FW400 and USB 2.0 connections and none of them work. The drive sounds like it is undamaged (no looped processes or clicking). Is there anything I can do to get that drive to mount (so i can see it in finder/disc utility)? Even if its with disc warriors?
I'm sure you've done some or all of this; the standard way to try to mount a balky disk is:
Disconnect and power it off for several minutes.
Check that all connections are snug and secure.
Restart your Mac, then connect the drive.
If that doesn't work, try again with different ports, cables, and combinations (a plug that works fine in one port may not make good contact in another one.
If it has it's own power supply, check those connections, too. Try a different outlet. See if you can hear it running, or feel the vibrations.
Try it on another computer.
But from your description, it doesn't sound good for the drive.

External firewire disk partition will not mount

I have two external hard drives connected by a firewire to my 2002 G4 iMac running OSX 10.3.9. One is a 160GB and the second a 360GB drive.
I was out of the room when the area experienced a minor power drop in voltage and when I came back the iMac had the message to shut down and restart. When I restarted everything appeared normal until I realised that one partition did not mount on the 360GB drive. I ran Disk Utility to check the disk and it found some issues (I failed to write them down..) but Disk Utility appeared to fix them.
The disk has 2 partitions and only one of the two partitions will not mount (the second partition works fine!). Disk Utility says that both partitions check OK.
I have rebooted several times. I have removed all other external attachments and rebooted but still the partition will not mount.
I cannot see the partition in Finder. The second partition on the disk is available to see and use in Finder.
I have selected the partition in Disk Utility (grayed out) and tried the "mount" button but nothing happens. For some 18 months up until now the drive has worked fine although I did notice a couple of times it took a while for the drive to open up in Finder and other applications. I use that particular partition daily, it has approx 100GB used of the 150GB total space.
When I ran Disk Utility it comes up with a variation in the results compared with the partition that has mounted OK. The result of running "Verify Disk" is listed below. The only diffeerence between the two partitions is the first line of each volume. Does the ",0" following "Checking HFS Plus volume." for the first partition called "Genesys1" indicate anything?
DISK UTILITY REPORT
Verifying volume “Genesys1”
Mounting Disk(S,"Checking HFS Plus volume.",0)
Checking Extents Overflow file.
Checking Catalog file.
Checking Catalog hierarchy.
Checking volume bitmap.
Checking volume information.
The volume Genesys1 appears to be OK.
Verifying volume “Genesys2”
Checking HFS Plus volume.
Checking Extents Overflow file.
Checking Catalog file.
Checking Catalog hierarchy.
Checking volume bitmap.
Checking volume information.
The volume Genesys2 appears to be OK.
2 volumes checked
2 HFS volumes verified
Any help would be appreciated.
Regards

Hello! Power failures are murder on disk drive directories as you have found out. Your best shot is to get DISKWARRIOR. It is the "gold standard" for these types of problems and can usually resolve the issue when Disk Utility cannot. As with any utility there are times when even it cannot fix things but it's the best there is at resolving such issues. Tom

External device will not mount

I have a USB 1.0 recording device that mounts without problem on my iBook, but not the iMac. This has not always been the case.
A few weeks ago, I shutdown the iMac forgetting the device was mounted. On the restart an error message appeared telling me the device was not properly unmounted. Since then, the iMac does not recognize the device when I connect the USB cord directly to the iMac. I suspect an alias of the previously unmounted disk is still in the system (probably a hidden file), however, I have not been able to find it.
What I have done so far: I have used WhatSize to reveal the hidden files. Another post about a similar mounting problem mentioned that /Volume/Folders might hold an alias, however, I was not able to locate it.
I started up the system in Safe Mode. No mounting.
I ran Disk Warrior on the drive - a few minor problems were resolved. On the restart, no mounting of the device.
As I said initially, I can mount the device on my iBook.
Appreciate any input. Thanks

To open /Volumes and see if there is anything there, just use the Finder's Go menu item, slide down to "Go to Folder" and type this:
/Volumes
Click the Go button and new window will open with aliases to all mounted drives. If you do not have the device plugged in there should not be anything there having to do the device. Also, the only things that should be there are aliases to your currently mounted drives. If there is anything else it should be removed.
Francine
Francine
Schwieder

HELP - External USB Hard Drive Will Not Mount

Ok, I've read through MANY other external HD mounting problems but can't find anything that helps me with my specific problem. Here goes...
I have all of my graphic/music files on the HD of my Mac. I want to copy these files to a drive so that I can clean it off and sell it. I will be transferring the files to a PC.
I purchased a USB external HD from Best Buy four months ago. I plugged it in and it asked me to reformat the drive as Macintosh. I took it back and had them reformat the drive as FAT32 so that I could use it on both systems. I had this done twice because it didn't work the first time. Well, it didn't work the second time either but they tested it on their Macs and it worked so I think it's a problem with my Mac.
The drive is recognized in both the System Profiler and the Disk Utility. When I try to mount it in the Disk Utility, nothing happens and it goes back to "Select a disk or volume".
I would like to get this problem fixed without spending any more money on it. I've contacted Mac techs and they usually charge $100/hour and can't guarantee how long it would take to fix. That, and I don't know anyone I trust with my precious data.
I'm beyond frustrated with this as I have been dealing with it for over six months now. I have tried unplugging and replugging but nothing seems to work. I've tried all USB ports (keyboard, monitor, tower) and various different power outlets (wall, power strip, etc...). The data is irrecplaceable and I'm nervous that it just sits on the computer without being backed up. If anyone has any ideas for me to try, please let me know. I am at my wits end.
Also, now it seems that Apple System Profiler "unexpectedly quits" when I try to open it. Any ideas???
Thank you

Here is a USB faq. Hope it helps!
Try using Disk Utility to do a Disk Repair, as shown in this link, while booted up on your install disk for your unepectedly quit issue.
You could have some directory corruption. Let us know what errors Disk Utility reports and if DU was able to repair them.
Try the repair first. if no luck try things in this Unexpectedly Quit link.
Cheers! DALE

Backed up data dvd-rw will not mount on my desktop?

a few months ago, i used retrospect to backup files onto five verbatim dvd-rw disks. the backups went fine and after they each were done i checked them to make sure that the backup was successful (which in all cases it was). recently i wanted to update those backups. but when i put each disc into my superdrive only one of the five disks mounted. the other four didn't show up on the desktop. because one of the disks worked i'm really at a loss as to why the other four didn't. is there any way to force a disk like this to mount so that i can erase and reformat it? i beginning to think that dvd-rw technology needs resuscitation. any help would be greatly appreciated!

I can try a lot of things, and waste a lot of money in the process. I would like to know if anyone has experiences of a way to get my photos out of a SD card that won't mount to the desktop.
BTW- TopTenReviews looks like a scam to me. Its hard to believe that one program out of ten is the best at everything, and they just happen to be able to sell it to you???

External Hard Drive will not mount after upgrading to Yosemite

After upgrading to Yosemite, my external 3TB hard drive will not mount... can't see in Finder, but does appear in Disk Utility. Follow steps to Repair disk, but get a message that D.U. cannot repair disk.

See mount section.
Disk Unmount Using Terminal
Disk Utility – Force Mount Disk

External backup drive will not mount on new mac mini. still works fine on the old one. new one is running mavericks

I just bought new-to-me mac mini running OSX mavericks.
Trying to migrate from old mac mini using simpletech external hard drive.
It still mounts on my old mac mini (system 10.5) but will not mount or show up when I plug it in to the new mac mini running mavericks.
Any ideas?

BDAqua wrote:
What exactly shows in System Profiler>Hardware>USB for those drives?
Boot from the Install Disc & see if they show up, not grayed out in Disk Utility.
1. Insert the Mac OS X Install disc, then restart the computer while holding the C key.
2. When your computer finishes starting up from the disc, choose Disk Utility from the Installer menu at top of the screen. (In Mac OS X 10.4 or later, you must select your language first.)
*Important: Do not click Continue in the first screen of the Installer. If you do, you must restart from the disc again to access Disk Utility.*
We were thinking along the same lines. While at home I dug up a firewire enclosure and put a bootable GUID formatted drive in it (that I had in one of the usb enclosures) and started her computer holding down the option key and then chose to boot from the external firewire. All usb drives are now mounting upon connection. I asume that her drive has bad sectors on it (even though the SMART status says it's OK) and is not loading all the drivers properly for USB to mount. I was suspicious from the beginning that the OS was corrupt when she first had me look at it. It was at that point that I booted it in target mode, connected to my Macbook Pro, and then CCC'd to a usb drive that I had. I then had a couple of difficulties installing the new OS. Should have known......
I am now going to put a new drive in it for her and she'll be up and running.
Thanks so much for your help and thoughts that got me thinking as well.
pax

Time Capsule will not mount new external HD

I have just bought a new iOmega 1TB external HD to connect to my Time Capsule. I have perviously been using a Western Digital 250gb external HD. I am having real problems getting the time capsule to mount the new hard drive, i have reformatted it to Apple Extended, but it still will not mount. However when i connect the old drive it mounts ok. Any ideas??

I am having exactly the same issue with a new Iomega 1TB hard disk.
The disk works fine when directly connected to a Mac. The Mac can read the TimeCapsule internal disk. The Mac can see the old, smaller WD external disk when it's connect to the TimeCapsule. But it can't see the new external disk via TimeCapsule.
I have reformatted the disk to MacExt journaled, I have rebooted each device in the chain. Just for kicks, I repartitioned the disk into smaller pieces, and tried reformatting as FAT. No joy.
Any other ideas?

External hard drive seen in Disk Utility, but will not mount.

My external hard drive has power and is spinning, but will not mount. It was fine yesterday. It shows up in Disk Utility and is verified and repaired. Tried the drive on 2 other macs with same result. Tried a new enclosure and that did not work. Tried all ports...usb and firewire. Any way to save my data?
I have screen shot of the partition info from Disk Utility for the hard drive included:

Hi Dominic,
If this is still not mounting, it may be worth trying a PRAM reset...
http://support.apple.com/kb/ht1379
Ben

My 750GB Maxtor external HD will not mount on my iMac 10.7.5 for Time Machine

This external drive has worked in the past; I had used it to successfully back up the same computer I'm using now. After attempting another long overdue backup, it aborted mid-way. I discovered some chew marks on the power cord and replaced it. The replacement power cord is the proper one, and the light on the Maxtor is on indicating power. I've tried two different USB spots, both of which work on other devices. However, now the Maxtor will not mount. My intention was to completely erase the Maxtor and start clean. Never got a chance. I've verified that the Finder Prefs have external disks checked. Finder doesn't "see" it. Disk Utility doesn't "see" it. Time Machine doesn't "see" it. My desktop doesn't "see" it. Another external I have (WD My Passport Ultra) does mount. Is OS 7.5 the problem? How do I verify that the Maxtor is just plain busted before I throw it out the window? Or have I already proved that? It was never used enough to fail, it seems to me. Anybody?

Rats. Thank you for the quick reply, rkaufmann87. I'm not awash in other USB cables of this type, but will hold out hope until I get my hands on one. Time to shop for another external probably. Thanks again. [sighs]

External USB drives will not mount under Mountain Lion

Since upgrading to Mountain Lion, two external USB2 drives that I have will not mount and cannot be viewed in the Finder. The same occurs on a 2012 MacBook Air, a 2009 iMac 27 and a 2010 MacMini, all running OS X Mountain Lion version 10.8.2.
Both drives are Samsung Story external USB drives (one is 1.5 GB and the other is 2 GB) and both have been formatted using Mac Disk Utility with a single Mac OS Extended (Journaled) partition, one using Snow Leopard and the other with Lion.
Both still mount correctly on a friends MacBook Pro that is still running Snow Leopard, and I had no problem with the same drives under Lion. Interestingly both can also be connected to Time Capsule USB port and show up correctly.
Both drives mount correctly under Windows 7 on BootCamp partitions that I have on both the 2012 MacBook Air, a 2009 iMac 27. These BootCamp partitions have Paragon HFS+ installed so I can read Mac formated drives.
Both drives show up in Disk Utility, but when attempt to mount the drives I get the message "The disk could not be mounted. Try running First Aid on the disk and retry mounting." I can run Repair in First Aid on the disk and get the message that the volume appears OK, but again have the same problem when I attempt to mount the disk.
I have also tried using Disk Utility 3,2, but still cannot mount the drives, though the program indicates there is no problem with the drives.
I have other portable USB including a Samsung portable USB2 drive, and two external USB3 drives, and I don't have problems with them.
There is clearly a problem with Mountain Lion with accessing (mounting) these Samsung Story USB drives, and the problem appears to be with Mountain Lion itself as the problem did not occur on the same Macs with Lion and does not occur with Bootcamp partitions on the machines.
I have a lot of time searching forums, but I have not found anyone with an identical problem.
I sure hope someone can help or that Apple come up with a fix for this issue which has only developed since the update to Mountain Lion.

bj10au wrote:
Since upgrading to Mountain Lion, two external USB2 drives that I have will not mount and cannot be viewed in the Finder. The same occurs on a 2012 MacBook Air, a 2009 iMac 27 and a 2010 MacMini, all running OS X Mountain Lion version 10.8.2.
Both drives are Samsung Story external USB drives (one is 1.5 GB and the other is 2 GB) and both have been formatted using Mac Disk Utility with a single Mac OS Extended (Journaled) partition, one using Snow Leopard and the other with Lion.
Both still mount correctly on a friends MacBook Pro that is still running Snow Leopard, and I had no problem with the same drives under Lion. Interestingly both can also be connected to Time Capsule USB port and show up correctly.
Both drives mount correctly under Windows 7 on BootCamp partitions that I have on both the 2012 MacBook Air, a 2009 iMac 27. These BootCamp partitions have Paragon HFS+ installed so I can read Mac formated drives.
Both drives show up in Disk Utility, but when attempt to mount the drives I get the message "The disk could not be mounted. Try running First Aid on the disk and retry mounting." I can run Repair in First Aid on the disk and get the message that the volume appears OK, but again have the same problem when I attempt to mount the disk.
I have also tried using Disk Utility 3,2, but still cannot mount the drives, though the program indicates there is no problem with the drives.
I have other portable USB including a Samsung portable USB2 drive, and two external USB3 drives, and I don't have problems with them.
There is clearly a problem with Mountain Lion with accessing (mounting) these Samsung Story USB drives, and the problem appears to be with Mountain Lion itself as the problem did not occur on the same Macs with Lion and does not occur with Bootcamp partitions on the machines.
I have a lot of time searching forums, but I have not found anyone with an identical problem.
I sure hope someone can help or that Apple come up with a fix for this issue which has only developed since the update to Mountain Lion.
You can start here
http://support.seagate.com/kbimg/flash/213059/213059_EN.HTML
Pete

Lsince update to lion osx my imac will not mount windows created video dvds my othe imac running snow leopard will

since update to lion osx my imac will not mount windows created video dvds my other imac running snow leopard will

You could've backed up your iPad prior to the "forced" upgrade which, by the way, you could have cancelled. iTunes doesn't upgrade your iPad, automatically, on its own. You had to click the Upgrade button to initiate the upgrade. You didn't have to do anything with that button. You can just leave it be.
iOS 8 is garbage on iPad 2 and 3 and even though iTunes keeps giving me the Update button option, I continually choose to ignore it.
Ignoring the Upgrade/Update button doesn't affect the normal iTunes/iDevice syncing/backing up operations.
You could've just left that button alone.
When was the last time you backed up your iPad?
While there is no way way to revert to a previous iOS version once you upgrade your iDevices iOS, iTunes saves multiple backups of your iDevice and if you backed up your iPad previously to this latest activity, you should be able to restore your iPad from an older backup that should appear by date when you plug your iDevice into your Mac, was for iTunes to launch and sync your iPad, then cancel the backup in progress and use the Restore function in iTunes to restore your iDevice from another previous backup version date.
If your current version of iTunes doesn't recognize your iPad2 under iOS 8, you need to check the iTunes update feature, in iTunes or in OS X Software Update feature in OS X Preferences panel to see if there is a iTunes update available for OS X 10.6.8 Snow Leopard.

External disks will not mount on new OS install

Hi,
I just had to reformat and reinstall all the OS and applications on a imac g5 for a friend of mine. I have updated all the os to 10.5.8 and have installed user software iWork, iLife, Microsoft office and Roxio's Toast 10 and a family history software called Reunion. That is all that has been done to this new install.
I went to transfer her personal files back and I can't get any external disks to mount. They will all show in disk utility but will not mount the desktop. I have tried 2 different drives formatted in Mac OS Exteded Journalled as well as MS-Dos Fat32. I have also tried flash drives formatted in each of these formats. All of these drives are readable on several other computers I have here, including a 2008 Macbook Pro running Lion, 2010 iMac running Snow Leopard as so on.
When inserted in the iMac G5 I can see all the drives in disk utiltiy and was able to even erase and reformat a drive to differnt format ( mac extended to Fat32) without issues to mount on the other computers.
Cd's mount just fine.
Anyone have any clues as to what's going on? Any thoughts are most welcome.
Thanks
pax

BDAqua wrote:
What exactly shows in System Profiler>Hardware>USB for those drives?
Boot from the Install Disc & see if they show up, not grayed out in Disk Utility.
1. Insert the Mac OS X Install disc, then restart the computer while holding the C key.
2. When your computer finishes starting up from the disc, choose Disk Utility from the Installer menu at top of the screen. (In Mac OS X 10.4 or later, you must select your language first.)
*Important: Do not click Continue in the first screen of the Installer. If you do, you must restart from the disc again to access Disk Utility.*
We were thinking along the same lines. While at home I dug up a firewire enclosure and put a bootable GUID formatted drive in it (that I had in one of the usb enclosures) and started her computer holding down the option key and then chose to boot from the external firewire. All usb drives are now mounting upon connection. I asume that her drive has bad sectors on it (even though the SMART status says it's OK) and is not loading all the drivers properly for USB to mount. I was suspicious from the beginning that the OS was corrupt when she first had me look at it. It was at that point that I booted it in target mode, connected to my Macbook Pro, and then CCC'd to a usb drive that I had. I then had a couple of difficulties installing the new OS. Should have known......
I am now going to put a new drive in it for her and she'll be up and running.
Thanks so much for your help and thoughts that got me thinking as well.
pax

External drives will not mount if wi-fi is on

I was really unsure where to post this. If you think it should be in a different thread then let me know.
My problem is this. I have a Macbook that I use at home no problem. I teach at a college where there is a wi-fi connection that my Macbook automatically connects to. Recently, I have discovered that any external drives will not mount until I switch the wi-fi off. Additionally, almost everything I try and do causes the spinning beachball for 10 minutes or more at a time.
I have searched the net and cannot seem to find any reference to this problem anywhere else. Any ideas at all why this might be happening will be much appreciated.

It was not until Mac OS X 10.6.4, not possible to run on a 10.2 machine, that ExFat was supported.
Many older Macs also will not recognize GUID formatted partitions made to boot Intel Macs either.
10.2.3 is the first system to support Apple Partition Map HFS Extended (Jornalled).
There may be NTFS support based on my tip here:
https://discussions.apple.com/docs/DOC-3003

External MAC dvd device will not mount

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