Extern hard disk not showing up

i used to use an older macbook, where my extern (it is a WD) would always show up.
it would also show up on other, newer, macbooks, even pros.
now i have gotten myself a macbook pro and it wont show up!
what do i do?
thank you in advance
lauritz

Try the External HDD on an orher Mac if possible. Do try all USB ports and other cables. I have read that WD enclosures themselves can be the problem. If you can swap the internal WD HDD into another enclosure, try that as well.
Ciao.

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Hi
My HP Pocket Media Drive (USB), when plugged into my MacBook, does not show up on the Finder, even though it shows up on System Profiler. It only shows up on Disk Utility in certain occasions (such as after shutting down and starting up again). I have checked my Finder preferences, that external hard drives are shown on desktop.
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Ian Sen wrote:
I get the following message in a window:
“connecting to server: resolving alias to… (my itunes folder on the external disk).”
On the chance that your Mac has a phantom folder in its Volumes folder, with that external drive not mounted, invoke the Finder menu option Go > Go to Folder. Enter "/Volumes" (without the quotes) in the field and click "Go". In the resulting window if you see anything with a name that resembles your external drive, trash it.
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Once you're able to mount that external drive, open the Accounts panel of System Preferences and click on the lock in the corner to authenticate if needed. Select your account on the left, then the "Login Items" tab. Drag the mounted disk icon into the window then close System Preferences. That disk should now mount when you log in. A Finder window will open, but you can close that manually. If that bothers you sufficiently, if you search these discussion groups you may be able to find threads that discuss how to work around that.

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Macintosh Operating System 10.3.x or earlier will only recognize FAT32 partitions that are smaller than 128-gigabytes. Multiple FAT32 partitions smaller than 128-gigabytes will need to be created in order for Macintosh Operating System 10.3.x or earlier to recognize the partitions. You will need to use a Windows based computer to create FAT32 partitions, as Macintosh does not have the ability to create them.
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Hi. I'm really in a panic right now because school starts tomorrow and a problem occurred with my external hard drive today. Before I start, I would like to clarify that I use a Macbook Pro 15" (not Retina Display). Here is what happened:
Around 6 months ago, I was organizing the contents of my external hard drive into folders (i.e. "Movies" > "Romance," "Action," "Horror," etc.). In the midst of doing so, my laptop kind of froze and before I knew what was happening, the contents of the "Movies" folder was invisible. The "Movies" folder itself was still visible and accessible, but its contents were not. When I double-clicked the "Movies" folder, nothing would be shown. It was as if it was empty. The problem is that something was still taking up space on my external hard disk. When my friends asked to copy some of my movies onto their computers, I agreed and saw that they could access the "Movies" folder on their Mac laptops! This means that it was probably a problem with my Mac laptop. I decided to ignore it because I was still able to access the contents of the folder if I plugged in my external hard drive into my TV (it's an LG TV).
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http://community.wd.com/t5/News-Announcements/New-Release-WD-SmartWare-Version-1 -3-6-for-Mac-10-5-10-9-11-25/td-p/628441

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but no partition
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Remaining option is pricey data recovery specialists.

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There's no problem with the drive.
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I have an external hard disk WD Passport 500Go. It does not appear on my iMac Retina but it appears correctly on my macBook Pro.
I have already tried several solutions but nothing seems to work :
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Did someone already get the same issue or any ideas to resolve that ?
Thanks,

Try different cables and also reset the SMC 2-3 times following the directions in:
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My external hard drive not showing up

Hello,
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This procedure is a diagnostic test. It makes no changes to your data.
Please triple-click anywhere in the line below on this page to select it:
ls -@Oaen /V* | pbcopy
Copy the selected text to the Clipboard by pressing the key combination command-C.
Launch the built-in Terminal application in any of the following ways:
☞ Enter the first few letters of its name into a Spotlight search. Select it in the results (it should be at the top.)
☞ In the Finder, select Go ▹ Utilities from the menu bar, or press the key combination shift-command-U. The application is in the folder that opens.
☞ Open LaunchPad. Click Utilities, then Terminal in the icon grid.
Paste into the Terminal window by pressing the key combination command-V. I've tested these instructions only with the Safari web browser. If you use another browser, you may have to press the return key after pasting.
Wait for a new line ending in a dollar sign ($) to appear below what you entered.
The output of the command will be automatically copied to the Clipboard. If the command produced no output, the Clipboard will be empty. Paste into a reply to this message.
The Terminal window doesn't show the output. Please don't copy anything from there.
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External Hard Drives not showing

I have 2 external hard drives connected using FW 800, a Western Digital 500TB & a Seagate 500TB. The Western Digital has a habit of freezing and the last time this happened I powered down the iMac. When I re started the iMac neither external hard drive is showing on the desk top what's happening and how do I cure this?

HI MIke,
To start with if your forum profile is correct you need to update your system softare to 10.5.8. Go here and install the v10.5.8 Combo Update
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Extern hard disk not showing up

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