MacBook :: USB Drive Not Being Recognized At Boot Up

Dec 17, 2010

So I expanded a bootable .iso image of openSUSEx64 11.3 onto my 16GB USB thumb drive following the steps I found on a website. When I restarted the MacBook with the option key pressed, the USB drive did not appear. Why the USB drive's not being recognized at boot-up? Here is the website I used (option 4): URL

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MacBook Pro :: USB Recognized Only When Connected Before Boot

Nov 4, 2010

I have a 17' MacBook Pro and when I connect my PNY 8gb USB it does not recognize it. It only recognizes it if I boot the Mac with the USB already connected.

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MacBook :: PNY USB Drive Not Recognized?

Jun 18, 2012

I tried doing a few Google searches to find a resolution to this problem, but nothing that came up seemed to work, so I'm throwing this question out there. I recently bought a 16GB PNY metal attache for my  2011 MacBook Pro (OS X). That computer fails to recognize the drive. Here are a few notes: 

1. I tested the drive on a windows vista computer, and that computer recognizes the drive. I can read/write from it on that computer.

2. Neither USB port on my apple is faulty; other USB devices function fine via both ports.

3. I have tried several solutions including:

a) Restarting

b) Powering off, unplugging the power cord, waiting 15 seconds, replugging the cord, and booting up the computer

c) Restarting WITH the drive in the port

d) Leaving the drive in for a while to see if it would eventually recognize it (no results)

e) Reformatting the drive to FAT32 to make sure it's possible for my mac to read/write from it 

Info:
MacBook Pro (13-inch Late 2011), iOS 5.1.1

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MacBook Pro :: New Hard Drive Still Won't Be Recognized

Mar 8, 2012

I've been having several problems with my mid-2009 MacBook Pro; 2 minute beachballs and failure to startup. So I've purchased a new new WD Scorpio Black thinking it was a HD issue, but after replacing my old HD with the WD, Disk Utility wouldn't recognize the new drive. So I searched around and found out that Hard Drive Cable failure is an issue on this certain MacBook. So I ordered a new Hard Drive cable and just replaced that today, thinking that my new HD would be recognized. However after going into Disk Utility via the OS X Install DVD, my new Hard Drive was still not recognized.

Info:MacBookPro

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MacBook Pro :: New Hard Drive Not Recognized

May 27, 2012

Have a mid 2009 13" 2.26 dual core. Started getting flashing folder with question mark icon and found hard drive failed. Tried two different drives, WD Scorpio Black 750GB 3GB/s 7200rpm and Seagate 500GB 3GB/s 7200rpm. Neither is recognized by the computer. What next? And yes I have the updated firmware.

Info:
MacBook
Pro, Mac OS X (10.6.5)

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MacBook :: External Hard Drive Not Recognized

Nov 1, 2008

I've got an external hard drive. It's a "My BooK" Western Digital 500 Gb that uses both USB and Firewire. I've used it many times successfully with my MacBook but today, my Macbook will not recognize it.

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MacBook :: Trying To Install New Hard Drive - Not Recognized

Jul 7, 2009

I have a first gen white macbook core duo. I am trying to install a new 320GB Seagate HDD in my laptop to replace the 60Gb drive. I installed it but I can't get the OS to recognize the Hard disk when it is installed in the computer. I have no problems when it is installed in an external case. I have booted off the Leopard disk but it does not show a drive available to format, I booted off the original drive in the external case and the disk utilities does not show another drive attached. If I put the 320GB drive in the external enclosure, disk utilities recognizes it right away. I have formatted it with GUID format but it doesn't work when installed directly in the macbook.

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MacBook :: CD / DVD Drive Spins But Disc Not Recognized

Dec 21, 2009

Here is what is going on with my MacBook:
-If I insert a music CD, the CD drive spins it and makes noise. It does not open iTunes or even show it on the desktop. It is not recognized. Then the computer ejects the disc.
-My iDVD software seems to have taken a crap. I am prompted every time the computer boots up that iDVD has quit unexpectedly and gives the options of "relaunch" "cancel" or "report to Apple".
-This is the weird part: I was going to reinstall Leopard OSX from the disc. The computer reads the discs and the "X" screen pops up. I then try to go through to reinstall the software as it tells me that it will restart.

It restarts and then ejects the disc when the Apple logo pops up. Therefore I cannot reinstall the software. Does this sound like a software or hardware problem? Can the fact that iDVD is not working mean that my CD's would not play? Does anyone have any ideas on what I can do here? I am desperate and would like to know what other approach I should take before I put a new drive in.

White MacBook, 2yrs old. 500gbhd, 4g RAM.

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MacBook Pro :: External Hard Drive Is Not Recognized?

Apr 9, 2012

my new MacBook Pro not recognizing my hard drives. Yes, thats two hard drives I have that don't seem to work on this computer but both work on my older MacBook and many other computers.

Info:
MacBook, Mac OS X (10.5.8)

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OS X :: Automatic Safe Boot - Password Not Recognized

Sep 12, 2010

I own a MacBook, bought in 2008 with Leopard as an OS. It is the black model, if this helps. While I was browsing, Firefox started behaving strangely. It was taking forever to minimize windows and could not use the top right function to view all applications/windows open. I restarted the mac but when it booted up again it did not do it properly. For 10 minutes I had the greyish screen with the loading sign underneath the apple logo, then eventually it showed me the safe boot mode, asking for my password.

When I enetered it, it did not accept it (login window shakes at each attempt). I tried to log in from the CD, but again asked the password and did not accept the one I put in, even though I know it was the right one! Now I can't use the mac and can't access safe boot either. Would you know any workaround solution for this, like a way to reset the password? Have you got any clue on why the mac decided all in a sudden to boot up through the safe boot mode?

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Windows On Mac :: Boot Camp Partition Not Recognized?

Aug 14, 2009

After letting Windows 7 install (with empty, unpartitioned space) it created a 100MB recovery partition (WinRE) which seemed okay. But I can't mount the NTFS partition in OS X now. It fails to recognize it. It sees the unrecognizable WinRE partition and seems to not look any further (that's my guess, at least).

Picture attached from Disk Utility of the space that SHOULD contain TWO separate partitions. One for WinRE, the other an NTFS partition for Windows 7.

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MacBook Pro :: Firmware Updater Got Stuck - Drive Not Recognized

Aug 30, 2010

Today, I was doing a time machine backup, and the backup failed. Ok, it's normal since the drive started updating the firmware. But after the firmware update failed (updater got stuck), the drive now spins, light on, but the MBP won't see it, and neither will the firmware updater. If so, what was the solution? Just have to go for the warranty?

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OS X :: Macbook Hard Drive Not Recognized After Crash During Partitioning

Jul 27, 2008

I have been searching the internet for 3 days and finally gave up, besides buying another hard drive. Ill try to keep this short. i got Macbook C2D / OSX 10.4 / 80GB HDD What happened: I wanted to free up space on my macbook, so I removed my bootcamp partition buy using the bootcamp installer to merge the osx and winxp partition back together. The installer froze for 30min and i decided to manually restart (holding power button). What a mistake i made, on reboot i only get the folder with the "?" icon. Symptoms: OSX installer does not see a drive. None of the bootable linux recovery disk Ive tried can see the drive. WinXP, Win98 recover disks do not see the drive. Terminal "diskutil list" shows=

/dev/disk1
0: untiled *467.0 kb disk1
/dev/disk2
0: untiled *219.0 kb disk2
/dev/disk3
0: untitled *95.0 kb disk3..........

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MacBook :: Usb Drive Not Recognized In Single User Mode

Sep 14, 2009

The title pretty much says it all: When booted in single user mode, I can't get my machine to recognize the USB drive. Here's what I did:

1. inserted usb stick (memorex 4GB traveldrive, msdos filesystem)
2. booted in single user mode (cmd+s after powering on)
3. mount -uw /
3. looked for usb device in /dev
4. ...it's not there! The USB drive shows up as /dev/disk1s1 after an ordinary boot, but in single user mode it's nowhere to be found. It's not just a name issue either: the list of devices that appear in /dev in single user mode is the same whether or not the USB stick is plugged in.

Even more confusingly, out of the 10(?) times I tried this it worked twice: /dev/disk1s1 actually appeared. mkdir /mydirectory; mount -w -t msdos /dev/disk1s1 /mydirectory worked fine, and I was able to read/write from the stick as usual. I have no idea what I did differently those two times. Does anybody know what's going on? I've got a MacBook2,1 running vanilla Leopard.

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MacBook Pro :: Getting A Seagate Hard Drive Recognized Over WIFI

Feb 6, 2012

I have recently bought a Seagate external drive. It works fine for Windows over WIFI. But for the Mac, it only works when directly connected and is not recognised over WIFI - the drive is not listed under devices.  It did when I first started the drive yesterday, when I managed to copy all my files onto the external drive via WIFI.  But not today.  Perhaps related to the software update I ran last night? 

Info:
MacBook Pro (13-inch Mid 2010), Mac OS X (10.6.8), Seagate Expansion external drive

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MacBook Pro :: Use A New External Hard-drive If It Is Not Recognized On Finder?

Feb 20, 2012

I have a new seagate 500gb hard-drive, it is recognized on Disk Utilities and not only that it also says the hard drive is 2tb.

Info:
MacBook Pro

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MacBook Air :: External Hard Drive Not Recognized In Finder

Mar 21, 2012

I am trying to pull up my Western Digital External Hard drive after connecting it via USB. I used to be able to open it through Finder and there is nothing showing up.

Info:MacBook Air, Mac OS X (10.7.3)

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MacBook Pro :: USB Hard Drive Is Not Recognized On It Running Lion

Mar 21, 2012

I have:

- Freecom ToughDrive Pro USB hard drive

- New MBP running Lion 10.7.3 

When I plug the disk in an USB port in the MBP, the light that indicates operation starts blinking but very lighltly colored and the disk is not recognized by the computer. I have put data on it using iMac Snow Leopard. I have plugged the disk into a MBP running Snow Leopard and it works. I have also tried another Lion (older MBP) and it also works. 

How come the disk is not mounted or shown in Disk Utility. Can it be a power issue?

I have noticed there a lot of similar posts in the forum and none has been satisfactorily solved. Is this a mayor Lion bug? If yes, how can I downgrade to Snow Leopard?

Info:
MacBook Pro, Mac OS X (10.6.8)

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MacBook Pro :: Verbatim USB Flash Drive Stops Being Recognized

Apr 12, 2012

All of a sudden the other day, my Verbatim USB flash drive just stopped being recognized... it had been mounted, a TM backup made to it when all of a sudden I got an error stating that it had been improperly removed... it was like I had yanked it from the USB port.I tried unplugging it, reconnecting, rebooting, moving it to another computer... no luck. it doesn't even show up in Disk Utility Verbatim has agreed to replace it under warranty but I'm wondering if there's anyway that I can mount it again to retrieve the TM backups.

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MacBook :: External Hard-drive Won't Mount Or Be Recognized

May 31, 2012

I just installed a new internal hard drive into my macbook as my old one was failing. Before doing this I backed up all of my information through Time Machine onto a Seagate FreeAgent external hard drive. I've been using this external hard drive for the past two years and I've never had any problems with my macbook mounting it. Once I had all of my personal information backed up I took out the external hard drive and then proceeded to take out my old internal hard drive and installed the new one. I installed the Mac operating system and the Macbook started up just fine but when it came time to reload all of my personal setting using Time Machine my macbook didn't recognize that there was an external drive plugged in. I know it isn't the external drive as it mounts just fine on other laptops. how I can get my macbook to mount the drive so that I can transfer all of my information onto this new internal drive? 

Info:
MacBook, Mac OS X (10.5.8), Seagate FreeAgent

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OS X :: Won't Work With Camera / Only Recognized In Safe Boot Mode

Sep 7, 2010

Samsung TL350
OS X 10.5.8, MacBook

I cannot get my camera to be recognized by my computer when I plug it in and the computer is normally booted.

* If plug the camera into my MacBook, Image Capture and iPhoto will not recognize it.
* If I plug the SD card into my computer with a card reader, the card will be read just fine.
* The camera works on two other MacBook Pros
* The camera will be found on my MacBook if I boot into Safe Mode
* The camera is found in System Profiler when the computer is normally booted, however, the information provided is limited.
* The camera is found in System Profiler when the computer is Safe Booted, and the camera shows the full amount of information about the camera


When I open the system log and then plug the camera in, I receive the following:

Sep 6 11:46:14 JoAlDe kernel[0]: USBF: 958.769 AppleUSBEHCI0x27b8800::Found a transaction which hasn't moved in 5 seconds on bus 0xfd, timing out! (Addr: 3, EP: 0)
Sep 6 11:46:19 JoAlDe kernel[0]: USBF: 963.770 AppleUSBEHCI0x27b8800::Found a transaction past the completion deadline on bus 0xfd, timing out! (Addr: 3, EP: 1)

From what I understand, this means that the computer is unable to see that the camera is a Mass Storage Device, thus it times out and is unable to boot it as such.

So I set up my system with the USB Prober and the associated logging file.

I ran the USB Prober on level 7 while I connected the camera.

I know zilch about reading and comprehending any of the results except this snippet really stuck out to me:

It occurred twice more:

3635.575 [5] Finding driver for interface #0 of Samsung Digital Camera, matching personality using com.apple.iokit.IOUSBUserClient, score: 104999, wildCard = 5
3635.575 [6] Matched: idVendor (8107) idProduct (4152) bcdDevice (256) bConfigurationValue (1) bInterfaceNumber (0)
3635.575 [6] Didn't Match: nothing

Just looking at this particular result, it looks like the computer is unable to identify what exactly USB device is being plugged in.

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MacBook Pro :: Intel Hard Drive Not Recognized When Installing Leopard

Jul 15, 2010

I have a Macbook pro 17" 2008 model, and I just bought a new 160gb Intel X-25m solid state hard drive. I installed it into the mac with no problem, but when I boot up with the OS boot disc 1, the drive doesn't show up in the "destination" screen. No drives are there. When I open Disk Utility the drive is there, and shown as read/write, but when I boot with option held down the drive isn't there either. I can't even do any repairs on the drive in the disk utility.

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MacBook Pro :: External Hard Drive Not Recognized After Not Ejecting Properly

Jun 23, 2014

i have Macbook Pro 2011 8GB RAM, 1 TB Hard drive OSX Mavrick. i recently ejected my back up drive but it was not a properly ejected now when i plug in the computer it doesnt come up as hard drive. it shows up in the disk utlity but it doesnt open its my backup drive and i dont want to loose m data 

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Mac Pro :: Remove Mac Raid Card From System / Drives Are Not Recognized At Boot Up

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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MacBook Air :: G Drive External Hard Disk Is Not Recognized By Windows Laptops?

Aug 23, 2014

My G drive External Hard disk is not recognised by windows laptops yet it works on my MacBook Air

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Mac Pro :: Disappearing Drive Not Mounting / Drive Not Recognized Warning

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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Mac Pro :: Drive Disappearing Suddenly / Drive Not Recognized

Apr 13, 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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MacBook Pro :: Switching The Boot Drive (want To Boot From The Optibay) How Can This Be Done

Mar 28, 2010

I run SSD/HDD, my HDD in the optibay is broken, I stuck it in a external and it makes finder freeze, it got bumped around too much so I want to put a new one back in the 'correct place' for a spinner, and stick the SSD in the optibay.(I figure the extra 2% of shock protection offered by the orange rubber circle things is worth the trouble of moving everything).

I am also going to buy a WD 3 platter 1TB laptop drive, and I read that they fit fine in the regular spot in MBP's (I'm going to open and measure in a min.)Anyways, there's no BIOS, only EFI, so how to I pick what drive to boot from? with 10.6 is it as simple as holding option down on boot, and picking my 'OSX' HDD, and then it will auto boot from that until I specify otherwise? (I ask because before 10.6 people on here were always talking about how to switch boot drives.)

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Mac Pro :: Replacing Boot Drive & Boot Camp Drive With Large Drives

May 30, 2008

I've been hearing good things about the Spinpoint Drives and the 750GB ones are coming down in price.Here is my current setup1 - 500MB Drive - Leopard2 - 320MB Drive - Vista 643 - 500MB Drive - FAT32 (Shared, Irrelevant)I plan on replacing drives 1 and 2 with 750GB Spinpoint drives.My question is, can I boot off of the Leopard dvd and put in Drive 1 and NewDrive1 and just clone it, and do the same for Drive2 and NewDrive2 and clone it? And then go into Leopard and resize the HFS partition, and go into Vista and resize the NTFS partition?

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Mac Pro :: Flash Drive Not Recognized

May 28, 2012

I am a new MacBookPro user and I really don't know what I am doing . I am having problems with the flash drive. It appears that it is not being recognized.

Info:MacBookPro

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