OS X :: USB Drives Not Recognized / Mounting?
May 25, 2009
This just started happening within the past month or so. None of my USB drives are being recognized or mounted. They appear within Disk Utilities and I can verify and run checks on them, but they do not mount. This isn't limited to one device or any specific port. It happens with USB memory sticks, external Maxtor drives (two different ones) and now my Canon PowerShot camera. Basically anything the Mac would mount as an external drive has this issue, so I know it's not specific to any hardware.
I do have a work around that I found on [URL] -- If I reboot with the device plugged in and hold the 'command' key the drive gets mounted. Next time I try the device though (in the case of my camera plugging it into another computer) it's not recognized again. I basically have to do this reboot procedure any time I want to use any device.
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Oct 5, 2007
the original optical drive in my G4 had been dying for a while - it would only respond to "eject" commands if there was a disc in the drive. If I inadvertently closed the drive without a disc, it would refuse to eject. It tried. It made a little motor sound, like it was trying to eject, then it gave up with an even smaller motor sound.
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Apr 16, 2012
My Mac Pro is not mounting any new hard drives for some reason. The one's already connected work fine and remain connected (I have three drives connected via eSATA ports). But I can't connect any drives via Firewire 800 or 400. I've tried differnt leads and different ports but none are connecting. I've tried the drive on a different Mac and it connected fine. But on the machine I need to connect to the drives simply dont mount. Nor do they show up in Disk Utility or Soft RAID. I have restarted and powered down several times but nothing is working.
Running OSX 10.6.8 on a Mac Pro (2008) The hard dirves I'm connecting are Lacie.
Info:
Mac Pro (2008), Mac OS X (10.6.7)
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Mar 11, 2010
I recently got a 2008 Macbook air with 10.5.6 installed. It was a floor model.also, the date when i booted it up was before 2001 for some strange reason.anyway, i have a WD 320 gb passport, usb ind. power external. It worked just fine two days ago, but now i upgraded through "Software Update" and..-It does not mount in finder, sidebar, or disc utility.
-the power light turns on
-cannot force mount with 3rd party software (Mount Me! 2.05)
-the MBA will also not mount any SD cards!! I have tried two different cables and even my printer!!-iPod Touch works just fine in the same port-SD cards and WD Passport work fine in anything else
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May 8, 2012
About 90% of the time, SD cards and external hard drives are not mounting as soon as they're connected (via USB or the SD card slot). I need to launch disk utility, and mount volumes manually (disk utility is detecting the devices). This has persisted through multiple 10.7.X updates.
Info:
MacBook Air, Mac OS X (10.7.3)
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Aug 1, 2010
My G5 PowerPC will not recognize any external drive, on the desktop or Disk Utility. One showed up briefly, but the computer locked up . I've tried each drive on my Imac and they all show up and work perfectly.
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Aug 4, 2010
Last week, my Macbook Pro (13", Mid-2009 model) froze. I held the power button to shut it down, and when I tried to start it back up, it gave me the blinking folder of death. I tried to boot using my Snow Leopard disk to try and repair the disk, but there was no drive except my DVD drive found.
So, I brought it into a local Apple store, and the "geniuses" told me my hard drive had failed and that they could replace it for $300 (I'm 1 month out of warranty, no AppleCare). I declined the offer and bought myself a hard drive off NewEgg for $50 (Western Digital Scorpio Blue 500GB).
I opened the computer up, took out the old hd and put in the new one. I booted to my Snow Leopard disk to install it, and again there was no hard drive found. I tried to go through Disk Utility as well and there was no listed hd.
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Aug 8, 2009
I have a 2008 (2/2008) 24" aluminum imac that is not recognizing certain USB flash drives now. The drive (Sony 8gb) worked before but does not now. When started up with the drive in a USB port, system profiler will find it but disk utilities will not (nor does it appear on my desktop). I have tried all other USB ports in this computer with no results. This drive still works fine on all other macs in the house. This problem is isolated only to flash drives since all other USB accessories still function fine. I recently added a Sandisk imagemate all-in-one card reader to this system and suspect that this might have caused the problem since oddly enough, my Sandisk flash drive still works fine. The only driver I installed with this reader was the application start up button (to launch iphoto).
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May 24, 2012
I have a MacPro 1,1 with a 2 x 2.66GHz Dual-Core Intel Xeon and I just upgraded to OSX Lion 10.7.4. Upon upgrading my system stopped recognizing the two optical drives I had installed. Is there a patch or are there drivers that I can download to fix this? Has this happened to anyone else? I was prepared to lose access to some older software but not my optical drives!!!
When I do a "system report" through "About this mac" both of the drives are listed but they dont show up on my deskop. I have an Optiarc DVD RW AD-7170A and a TSSTcorp CDDVDW SH-S202N
Info:
Mac Pro, Mac OS X (10.7.4), 2 x 2.66 GHz Dual-Core Intel Xeon
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Jan 28, 2010
I have a Western Digital Green 2 TB drive attached to on of the two extra SATA II ports on my 2006 Mac Pro. No problems for over three years using several drives on this port. Today the drive suddenly would not mount and I received a "Drive Not Recognized" warning. In Disk Utility the drive is completely empty without any volume. I also now have a 32-GB "phantom" volume which used my user name - but does not exist. I turned off the computer and put the drive in an external enclosure, which it mounted without difficulty. I am now updating my backup of the drive and ordered a new 2 TB WD Black drive.
Only a few days ago I had the similar problem with a SD card - missing volume contents, a "phantom" 32 GB volume. I actually reformted and erased the SD drive, ran Disk Utility to check it, and put it in another computer - using the same SD card reader - and all the files were there!! Nothing was erased at all. Very strange.
Anyone have any idea WTF is going on? It seems like my motherboard drive controllers are getting flaky. Any way to test it? I have all the usual test programs, but nothing has shown up
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Oct 15, 2009
So I have followed a bunch of the 'MacPro with mac raid card users wanting to do bootcamp' threads. I have attempted all the hacking required but have not been successful. I heard that bootcamp 3.1 will fix this problem possibly... so in the mean time I would like to remove my SAS drives and raid card and just use the sata drives that I have to do Mac OS and Windows.
I have removed the card but when I plug the drives in and boot up the machine, the drives are not recognized. Is there some plug that I need to reconnect somewheres?
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Sep 13, 2009
I'm looking at the specs page for the MacBook Pro and it reads this...
Your MacBook Pro comes standard with a 5400-rpm Serial ATA hard drive. Choose a hard drive with a faster speed for greater performance. Or you can choose a solid-state drive that offers enhanced durability.
Basically suggesting that the HDD option has a performance advantage over the SSD, but is this the case? I always thought SSDs could read & write quicker because they use solid-state flash memory as opposed to hard disks.
I want to go with the 256GB SSD but I want to know how it ranks in speed.
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Sep 27, 2010
I have a question regarding Time Machine functionality. Here's my situation. I have two hard drives in my Pro: one that operates as a Boot drive, and one for storage. Right now I have Time Machine set up to backup my storage drive, but I was wondering if it was possible to have plug in a second external drive and use it to back up the Boot drive. I searched for a similar thread, but couldn't really find anything. Has anybody successfully done this?
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May 15, 2009
As the title says, can you combine 2 drives to one large without the expensive raid card?
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May 21, 2009
I have searched but I can't seem to find an answer to this question...
I have 4 x 500MB drives in my Mac Pro and 4 x 500MB external firewire drives.
Currently I use Carbon Copy Cloner to clone each internal drive to it's respective backup. ie Drive 1 > Backup 1, Drive 2 > Backup 2 etc
Is it possible to use Timemachine in a similar way? so that each internal drive has it's own corresponding Timemachine backup?
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Dec 2, 2010
So far I've downloaded Toast 10 Titanium, because I heard that I need it to assist me with this, but basically what my problem is, is that I have a program that needs a CD to run it, but instead of a CD I have .iso images. Basically I need to know how to mount the .iso images onto my desktop as a CD so I can run my program successfully.
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Oct 21, 2009
I have an iMac G4. When I insert a CD it no longer shows up on the desktop. I've checked under System Preferences and chose CD/DVD. I made sure that "When you insert a blank CD" the Finder Opens and "When you insert a blank DVD the Finder Opens".
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Jul 6, 2010
I have a Mac Pro recently purchased that I use for video editing and I have been having a rather serious and very annoying problem. Using Final Cut Pro, I have been rendering a section of video and after a (variable) period of time, my scratch disk (internal SATA - came with the Mac Pro) just unmounts itself, causing FCP to crash out and I lose my render. I can only get the drive to mount again if I restart (or shutdown and start-up again). Is there anyone out there who has knowledge of this problem? I want to ask Apple to look at my machine, but I work at a large institution and the paperwork trail is huge, so it would be a last resort.
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Oct 31, 2007
Ever since installing Leopard, I've noticed it is having problems consistently mounting discs, specifically my external USB drive (for Time Machine). Sometimes I plug it in and it shows up as a disc on my desktop (and viewable within Finder and by Time Machine); other times I'll plug it in an it doesn't show up any where (even after restarting OSX).
Not sure this is related, but I also noticed that a .dmg file I downloaded failed to mount (just got an error message). This time, when I restarted OSX when I tried launching it again, it worked.
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Oct 21, 2010
I've recently installed a second hard drive in place of my SuperDrive and now use SSD as my OS drive and a regular hard drive for data. However, when running on battery I want everything I can squeeze out of my mac so I tend to dismount the drive when on battery power. Dismounting is easy, just right click and eject, but mounting it back requires going into Disk Utility. Is there a way I can place a shortcut to mounting the disk/write some script so I don't have to go all the way to Disk Utility? Even better, maybe there is a way to code a script that would automatically mount the disk when I switch from battery to AC?
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Jan 19, 2009
I've got a few purchased video DVD's that when I insert them in the Mac Pro (Feb 2008 model), it spends a minute spinning the disc and then ejects it. Other discs work fine, and these problem discs work fine in my MacBook Pro. Could this be a faulty DVD drive or some form of copy protection? If it could be a faulty drive, will Apple send me a replacement to fit myself. I don't want the hassle of lugging my Mac Pro to an Apple Retail Shop or to send it away for repair (I'd rather spend �25 to buy a replacement drive than go through that hassle!).
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Feb 13, 2009
I have a 24/7 SMB server (RAID6) that I use for media serving via gigabit. How can I auto mount this server without doing a CMD+K everytime from finder? I want them to automatically mount upon login under OSX and show up under "Devices" right under the hard drives. Right now the way it works is, I mount it manually (6 partitions) and it shows up on my desktop. However it does not show up under devices. What I can do is individually drag and drop these mounted drives to the devices area so other applications can easily see it.
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Feb 18, 2009
I did some searches on this site as well as google but could not find what I was looking for. How can I mount a server on my OSX 10.5.6 desktop? Can I use FTP? Do I have to use another protocol?
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Feb 20, 2009
I have an annoying problem; I have 2 x 1TB Seagate daisy chained and then connected by FW800 to my iMac.
When I do a fresh boot up (in the morning usually), the hard drives don't automatically mount, I have to take the FW plug out and put it back in again.
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Mar 30, 2009
I have a 2.4 Ghz MacBook that i bought last summer, and a 250 GB Western Digital external hard drive (powered by computer) that i also bought last summer.
My problem is that My computer will not recognize the hard drive at all. it doesn't show up anywhere, and after attempting to reconnect it over and over, it will eventually pop up, and then disappear, saying that it was improperly ejected.
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Apr 2, 2009
how do you selectively turn on and off auto-mounting of drives? I have two drives, 1 for boot with docs etc, and the other for CCC clone back up. But both mount up on start-up. I'd be nice to only have the boot drive mount only. So I dont accidently copy stuff to the clone/back up drive. And if I want to clone to it I can use Disk Utility to manually mount.
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Apr 7, 2009
I currently work with an old G4 Power Mac (1.25 GHz, 2GB RAM) and have to mount a FW 800 volume (WD MyBook Studio Edition 1TB) to that computer so I can consolidate to it (Avid speak for copying some data). But it doesn't mount, and Disk Utility only shows it greyed out, and there is no option to mount it like in 10.3 and following. The strange thing is, there are already two WD MyBooks Studio Edition drives connected and fully mounted. But even if I disconnect all extra drives, the one WD MyBook is still greyed out, even after reboot, which helped sometimes. I also use this drive with a 10.4.11 PowerMac G5 and a 10.5.6 C2D MBP (Unibody). Can newer Mac OS versions leave some kind of mark, so that this older Mac OS won't allow it into its system?
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Sep 2, 2009
After installing SL on a separate drive in a 2008 MacPro, the none of the four disks mount on the desktop. Also, the Migration Assistant doesn't recognize any disks.
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Oct 14, 2009
is there away to mount a share as hidden? or so it is mounted other then the desktop?
what i am trying to do is i have an application and it needs connection to a share that is located on a server. that share has read/write on it so that the application can run but i don't want people to be able to see it and play with other peoples data.
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Oct 30, 2009
My wife's 5th gen Nano won't stay mounted on her Macbook, but when I plug it in to my iMac, it stays mounted just fine. It mounts for a minute, checks itself with iTunes, syncs, and then unmounts from the desktop. What gives? This doesn't happen when it is connected to my iMac.
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