Why does my mac dont recognize the external hard drive
i log the external HD, the lights on the Hd are going on (means electricity goes) but i cant see the thing inside the HD
thank you som much for the help
There's a program in your Application's Utility folder called Disk Utility. Run it and see if the program sees the drive. If so, attempt to mount it. (There's a mount option in the toolbar.) The drive might need to be repaired. (The repair button is at the bottom right of the program window.)
If Disk Utility doesn't see the drive try another cable...and it is possible that even though the lights come on showing the enclosure has electicity, that the drive or electronics in the enclosure are dead.
Similar Messages
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I was backing up my MacBook with Time Machine and using my new (correctly formatted) external hard drive. All was going well when my 2 yo knocked the disk leading to a "failure" by time machine (Latest Backup: Failed). Now the MacBook will not even recognize the hard drive. I have rebooted, tried all I can think of, but no acknowledgement of the drive. The drive itself makes noise and vibrates as if working, but nothing from the Mac. Please help or $100 down the drain... Thank you.
You may have already done these resets in the "tried all I can think of " portion of your post.....if not then here they are.....
PRAM
support.apple.com/kb/HT1379
SMC
support.apple.com/kb/HT3964
.....hopefully that is all that is required..... -
Why can't I copy my photo files from my Mac Pro to the External Hard Drive?
Whay can't I copy my photo files from my Mac Book Pro to my External Hard Drive?
Are you trying to copy the actual files or the iPhoto Library? Are you tryuing to do it in iPhoto or in a finder window?
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i have an external hard drive hooked up to my time capsule andi can not get my macbook pro with itunes to recognize the hard drive. does the hard drive need to be formatted to my mac. it has been formatted and does have existing fles on it. Thanks for the help in advance.
Well sometimes it won't boot, but the drive is fine.
You'll have to run through these steps and depending what occurs (or doesn't) will give you a clue, if you need to replace the drive and restore from the TM drive.
Step by Step to fix your Mac
My computer is dead, is my personal data lost?
Create a data recovery/undelete external boot drive
In the future, consider bootable clones, they are bootable, but TM drives are not.
Most commonly used backup methods -
Why won't my Extreme recognize an external Hard Drive?
Just bought a new Apple Airport Extreme (my first Apple product and not happy) and connected an external Hard drive to it via USB but I can't get my PC to recognize it. I can see it when I log into the extreme under utilities but that is it. I tried 3 different hard drives, 2 are in FAT32 and the larger one is NTFS. I followed Apple's instructions under disk sharing and still nothing.
I would greatly appreciate any advice to get this working.Good evening.
Only drives that are formatted in FAT32 or Mac OS Extended (Journaled) will be compatible with the USB port on the AirPort Extreme. NTFS and exFAT are not supported.
Unfortunately, we have few Windows users here, and I am not one of them, but one of the Apple Support documents below provides 3 methods for PCs to connect to a drive at the AirPort Extreme. The other provides general information about format compatibility.
Hopefully, one of the PC guys will post soon to provide additional information.
http://support.apple.com/kb/HT1331
http://support.apple.com/kb/HT2426
I believe that you have 90 days of free phone support with a new Apple product, so you might want to explore that route as well.
http://www.apple.com/support/contact/ -
Why doesn't my iMac recognize my external hard drive?
I updated my imac from leopard to snow leopard to lion. I plugged in MY Book external hard drive, which had been working, but now it is not recognized. I went to the disk utility but all the First Aid buttons are greyed out and I can't do anything. I can't back it up anyplace because its not recognized. What do I do??
How do I upgrade the Firmware, which is one suggestion I read in the forum? The My Book was separated into to sections, but I also upgraded my Mac Book Pro to Lion, so it doesn't work there either. Double trouble!!Go to finder .
Apps
You see 1 app or nothing like bootcam or idisc
put your mouse behind apps and you see hide klick whith your mouse on this and enjoy.now you see idisc and
Your computer.
Greetings Hans -
Why won't my computer recognize my external hard drive anymore?
I have an external hard drive I was using all morning. This afternoon, the hard drive isn't showing up on my desktop. It does show up in my system profiler under usb. When I go to disk utility to repair it, it isn't there. Please help!!!
No. Any other external drive I plug in works. This particular one, I was using the morning before it disappeared. I know the drive works with this computer I have been using it with this computer for months with no problems. It shows up in the system profiler (image 1), but not in disk utility (image 2) or on my desktop (image 3)
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My Time Machine seems to be hanging up (stopping) beforew completion. I'm running Mountain Lion (OS X 10.8.2) on my iMac G5, and I already trouble-shot the external drive used for Time Machine by using Repair on Disk Utilities. So--what gives?
IMac G5 with Mountain Lion.. amazing.. I am pretty sure support for early Intel stopped at ML and support for G5 long before that.
Load the widget and see if you get error message that the TM is ejecting the drive.. before the backup is complete.. that is one of those nice.. features.. Apple has made available in recent updates.. sometimes called bugs.
A1 in here http://pondini.org/TM/Troubleshooting.html
Also look at the other info.. C12 C17 are common issues. -
I'm pretty sure that upto a few months ago I had a hard disk connected via USB to my Airport Extreme and I was able to backup all the computers on my home network. However, somehow over the last few months this had stopped happening. I am not able to select my network disks for time machine backup.
There is a very unhelpful sentence on Apple's website which simply says it does not allow backup to hard disks connected to Airport Extreme via USB. Does anyone know why this is? Is there a way around this? Can I connect a drive to my desktop computer and have other computers backup through the network to that?This was never an approved configuration: OS X Mountain Lion: Disks you can use with Time Machine
Can I connect a drive to my desktop computer and have other computers backup through the network to that?
The above KB article indicates you can, though I have not personally tried it. -
HT201250 What does it mean to "partition" an external hard drive? Is it something that I want to do?
What does it mean to "partition" the external hard drive? Is it something I want to do? How do I save files from another hard drive to the new one? I have to reformat the old one as it was not set up correctly. The drive I have is Seagate but not specifically for MAC, so I have to format it.. never have done this before. Don't know the jargon. I read that Time Machine will back up automatically but I want to take files from the old drive to the new one. Do I have to take them to the computer first and then to the new drive? I need more memory on my computer. It's way too cluttered and congested. HELP!
Whoa! Slow donw. TRhere's a lot here. I would suggest you buy a good book on computers in general or macs in particular, one is "OSX the missing manual".
What does it mean to "partition" the external hard drive?
It means you take one large drive and make it into more than one volume. This means that it might show up as 2,3 or 4 inde[pendenmt drives. Each one could have, for example, a different operating system on it. Its a good thing to do if you want to use a drive for several purposes
Is it something I want to do?
beats me, you didnt way what you're trying to accomplish. Sorta like sking "should i turn left?" Depends on where you want to go.
How do I save files from another hard drive to the new one?
See advice n book above. Copy them in finder. Copy them in unix. Use a backup or sync utility. No different from Windows in that respect.
I have to reformat the old one as it was not set up correctly. The drive I have is Seagate but not specifically for MAC, so I have to format it.. never have done this before. Don't know the jargon.
Hook it up. Run disk utility. Partition 1 or more partions. GUID map. Format each partition Mac OS extended, Journaled. for more, read book, above. Seriously - we could give you more tips, but you really should learn enough to be comnfident.
I read that Time Machine will back up automatically but I want to take files from the old drive to the new one. Do I have to take them to the computer first and then to the new drive?
I have no idea what you are asking.
I need more memory on my computer. It's way too cluttered and congested. HELP!
What kind of memory and why? RTAM? Hard drive space? Explain. By the time you are done explaining, i suspect you will have ansered your own question.
Good luck,
Have you read the PDF manual for your cmputer?
Have you used a search engine to look for info, for example, in two seconds i got this from google and wikipedia:
http://en.wikipedia.org/wiki/Disk_partitioning
Grant -
Why does my iMac (with Mountain Lion) no longer recognize my external hard drive I have used as a back up via Time Machine after the hard drive was accidentally unplugged?
Do you mean the external hard drive is not mounted on the iMac desktop?
Check if Disk Utility sees the drive. Applications / Utilities / Disk Utility. If the external shows up in the left column, select it and click on Mount.
If it does show up this way, I recommend using DU to Repair Disk. -
I have iMovie 09. I just erased my external hard drive, but it is still formatted for the mac. However, iMovie will not recognize the hard drive. It shows the only hard drive available is the computers. How do I get the external hard drive to show up?
In Finder's Menu, select Go menu>Go to Folder, and go to "/volumes". (no quotes)
Volumes is where an alias to your hard drive ("/" at boot) is placed at startup, and where all the "mount points" for auxiliary drives are created for you to access them. This folder is normally hidden from view.
Drives with an extra 1 on the end have a side-effect of mounting a drive with the same name as the system already think exists. Try trashing the duplicates with a 1 or 2 if there are no real files in them, and reboot.
If it does contain data...
http://support.apple.com/kb/TS2474 -
LR 5 does not recognize my external hard drive. It has recognized this drive in the past. No help at any Adobe site.
My external HD contains photos I have worked on in the past.
Additionally, I have added photos to LR5 directly onto my Mac HD. (38
photos added when working in the absence of my external HD)
Presently, in the Library mode, the Le Cie external HD is not seen in the
upper left hand corner "Source" location.
The only way to "see" the La Cie HD and its photos is in the "Import" mode.
These photos have previously been imported.
I wish to use the La Cie HD as my source in the Library mode and proceed to
the Develop mode.
In other words, work on my previously imported, previously worked on
photos, now on the La Cie. -
I just had to reformat the external hard drive that houses my iPhoto library, then restore it from a backup. Now Time Machine is telling me my backup hard drive suddenly does not have the space to complete a backup. I also noticed when I go in to Time Machine, there are only about 5 backups recorded on the ext. hard drive. There were many more before. Any idea what happened and if I have to buy a new back up hard drive?
Hallo Kieth ,
I am not quite ready to restore the full iphoto library , as I have days of work re - imputting titles,descriptions and enhancement . I hope that your suggestion works , as I use my Macbook basically to work with digital photography. Through time , I will need to delete my library to recover more disc space and I would hate to have to spend more time re - imputting titles and descriptions all over again .
Thanks for your interest and advice.
regards - Alan -
I just backed up my mac to an external hard drive using Time Machine. What would happen if I turn Time Machine off and then plug the external hard drive back into my computer?
What I am ultimately wanting to do is make more room on my computer by backing up all of my files onto the external hard drive and then deleting them off of my computer. However, neededing to be able to retrieve them from the external hard drive later down the road.
From what I have read and am trying to understand, is that I probably shouldn't have used time machine. I need to use the external hard drive like a basic flash drive where I can put things on and get things off without having it automatically update through time machine everytime I connect it to my computer.
Not tech savvy at all and barely understand basics. I need very simple and easy to understand explanations.sydababy wrote:
and then deleting them off of my computer.
BIG BIG MISTAKE ..... youre making a linchpin deathtrap for your data trying to shove everything on a single fragile HD.
Dont suffer the tragedy other people make, buy another or 2 more HD, theyre cheap as dust.
The number of people who have experienced terror by having a single external HD backup is enormous. One failure that WILL HAPPEN, and kaput,......all gone!
Dont do it, its all about redundancy, redundancy, redundancy.
follow here:
Methodology to protect your data. Backups vs. Archives. Long-term data protection
Deleting them off your computer is fine....having only ONE copy is extremely BAD.
The Tragedy that will be, the tragedy that never should be
Always presume correctly that your data is priceless and takes a very long time to create and often is irreplaceable. Always presume accurately that hard drives are extremely cheap, and you have no excuse not to have multiple redundant copies of your data copied on hard drives and squirreled away several places, lockboxes, safes, fireboxes, offsite and otherwise.
Hard drives aren't prone to failure…hard drives are guaranteed to fail (the very same is true of SSD). Hard drives dont die when aged, hard drives die at any age, and peak in death when young and slowly increase in risk as they age.
Never practice at any time for any reason the false premise and unreal sense of security in thinking your data is safe on any single external hard drive. This is never the case and has proven to be the single most common horrible tragedy of data loss that exists.
Many 100s of millions of hours of lost work and data are lost each year due to this single common false security. This is an unnatural disaster that can avoid by making all data redundant and then redundant again. If you let a $60 additional redundant hard drive and 3 hours of copying stand between you and years of work, then you've made a fundamental mistake countless 1000s of people each year have come to regret.
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