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My hard drive cannot be accessed although it is read when I open the disk utility application to try and repair it. I am using a mac

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It sounds as though the master slave relationship may be in conflict, or that your drive is not formatted. Note--these are all steps for a pc, but since this is hardware the same process should hold true for apple products.
Please make sure your tower is powered down before removing the cover. In order to corect a master slave problem you must make sure that the jumper pin/s on the back of the drive are configured properly according to your motherboard specifications. generally, if the hdd in question is the second device on an ide cable, then you have to arrange the jumper (connector) so that the drive is seen as a slave device by your motherboard. if that doesn't work, then both devices on the ide cable will probably have to be set to the cable select (cs) position.

Posted on Nov 27, 2008

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Posted on Jan 02, 2017

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My mac will not mount my downloads


It could be a problem with permissions, go to applications and then utilities then open disk utility then click on your hard drive then click on repair disk permissions it will take some time to complete depending on the size of your hard drive. Once complete reboot your machine. Hope this helps.

Nov 08, 2011 | Apple PowerBook G4 Mac Notebook

Tip

Formatting an external hard drive with Mac OS X's Disk Utility


Formatting your new external hard drive is not as difficult as you may think. In fact, you don't even have to be a computer techie or uber-Mac geek to perform this procedure successfully.

The tool you would use, to format your drive within your Mac OS X system, is the built-in utility application called Disk Utility.

Disk Utility is Apple Inc.'s defacto utility application, for performing disk related tasks within the Mac OS X volume.

47fc804.png

From creating new images, to burning CDs and DVDs to formatting hard drives, Disk Utility performs well enough to keep not only your Mac OS X volume on your hard drive error free, but keep your hard drive healthy and error-free as well.

I could go on in detail, admirably describing more features of this versatile Mac OS X tool, but the purpose of this FixYa tip, is to show you how to easily format your external hard drive. So that is where I will take you now.
-----------------------------------------------------------------------------------------------
There are generally two formats in Disk Utility that you can use to effectively format your hard drive.

Mac OS Extended (Journaled) - if you want a Mac readable hard drive only

MS-DOS (FAT 32) - If you want your external hard drive to be read by both Mac and PC.

-----------------------------------------------------------------------------------------------
--STEPS FOR FORMATTING YOUR HARD DRIVE WITH DISK UTILITY--
-----------------------------------------------------------------------------------------------
• First, make sure your external hard drive is connected securely to your Mac and is turned on.

•Next, from your desktop, click anywhere on a blank space on your desktop. Now you should see Finder listed near the Apple menu icon.

• From the Finder menu, click on Go, then Utilities from the
drop-down menu. This will take you to your Utilities* folder.

(*You can also get to the Disk Utility application via Applications > Utilities folder)

• Now, locate and launch the Disk Utility application.

When Disk Utility opens you will see a left side window, which will show
all connected hard drives and optical drives. It is here that you
should see your external hard drive listed in that window.

bdf4c64.png



• When you locate it, simply select it and then select Partition
from the tabs on the right hand side.

a11d5a9.png

• Change the Volume Scheme from Current to 1 Partition

• Make sure to provide a name for your new external hard drive.

• Select Mac OS Extended (Journaled) from the Format
drop down menu, for a bootable Mac only external hard drive.

• Or select MS-DOS from the Format drop down menu, for a bootable Mac & PC external hard drive.

From there, click the Options button, located toward the bottom of
your window.


This will open a partition scheme selection window as seen in this screen shot:

04286c5.png


• Select GUID Partition Table for bootability on a Intel processor based
Mac.

• Or select the Apple Partition Map for bootability on a PowerPC based Mac.

• Click the OK button.

Finally, click the Partition button and allow Disk Utility to format your new external hard drive.

When this process is complete, you now have a newly formatted, ready to use hard drive.

Believe it or not, this process can be completed faster than you think.
Using this method with Disk Utility, I was able to format my new 1TB Iomega USB external in less than 20 minutes.
-----------------------------------------------------------------------------------------------
Final Note:
I used the external hard drive as the focus for showing you how to format and prepare your hard drive for use on your Mac, but this feature can also work with internal hard drives as well.
-----------------------------------------------------------------------------------------------
For more information about some of the disk repairing features of Disk Utility, here is a great support link for this nifty and quite effective Apple utility for the Mac OS X platforms:

Using Disk Utility to repair a disk

-----------------------------------------------------------------------------------------------

Thanks for reviewing my Mac OS X Tip!

Regards,

-Mactechtrainer


on Feb 11, 2010 | Computers & Internet

1 Answer

I have macintosh so when i put the external hard drive it works with no problems but when i want to get sth as a backup from windows ,,the pc cant see the hard drive,except if i formated the hard drive,how...


Your Mac can read Windows hard drives, but it can't write to them. There is a free software to allow the Mac to read Windows formatted drives, but it's a bit technical. You have to install Mac-FUSE (search Google) and NTFS-3g (go to www.macupdate.com and search for NTFS-3g).

There is commercial software that will allow Windows to see Mac OS Extended (HFS+) formatted hard drives, including MacDrive. I believe it's about $50. If you are using Windows on your Mac via Apple's BootCamp feature and you have Mac OS X 10.6 "Snow Leopard", make sure you install the drivers from the Snow Leopard disc that will allow Windows to read Mac formatted disks.

You can also format your external drive as FAT 32 from your Mac (use Disk Utility in /Applications/Utilities). But FAT is ancient. That's MS-DOS's filesystem. It's not great. But if you want to do it, use your Mac (yes, your Mac because it can format larger drives as FAT than Windows can):

**WARNING***WARNING*** this will ERASE all data on the hard drive. Back up first!***WARNING
1. Click the magnifying glass in the upper right corner of your Mac's screen.
2. Type: Disk Utility
3. Click the Disk Utility Application that comes up (or press Return if you're using Mac OS X 10.5 or 10.6).
4. Click the icon of your external hard drive.
5. Click the Erase tab.
6. Change the format to FAT 32 and Give the drive a one word name, no more than 8 letters.
7 Click the Erase button. ***WARNING*** This will erase your drive!
8. Now the drive can be read by Windows or Mac OS X.

Whew! Lots of info. I hope this helped. Please let us know if it helped. Let us know if it didn't, too. We'll do our best to help. If this helped you, please rate me.

Good luck!

Bot

May 28, 2010 | Apple Computers & Internet

1 Answer

External wont open on mac


if you have used the hard drive on a windows pc some format types cannot be recognized by mac

follow these steps to make it usable by mac and windows
*THIS WILL DELETE ALL FILES ON THE EXTERNAL HARD DRIVE AND DOE NOT ALWAYS WORK

Go to Finder -> Application -> Utilities

Double click for Disk Utility

Select the external Hard Disk you wish to format at the left column

Click on the Erase tab

At the “Volume Format” select “MS-DOS File System”

If you confirm to format your hard disk for mac and windows, Click on “Erase” button.

Pop up window will ask to verify the erase procedure. Click the erase button again in the window to start the erase process.

Once the erase process finish, your external hard disk may be able to use in Mac and Windows.

Mar 20, 2010 | Apple iBook G4 (Z0AZW13397068) PC Notebook

1 Answer

My simpletech drive is showing on my iMac but I am unable to write any files to it. It says I can only "read" but it does not alow me to change the access.


These things come formatted for PCs--you have to go into Utilities on your mac (in hard drive click on Applications, Utilities folder, then Disk Utility, then click on the simpletech (that has the gb next to it), click on the drop down to change the format (MS-DOS if you want to read on both PCs and MAC, but MAC-OS for just Macs) re-name it on the drop down below that, then click on erase and then it's re-formatted.

Jan 17, 2010 | SimpleTech Signature Mini 160GB External...

4 Answers

I have an apple computer and a maxstor hard drive is formate for windows


If you want to use a Macintosh running any version of OSX then you need to use Disk Utility to properly FORMAT it. If you want to leave the partitions and formatting for Windows and later share it with a Windows machine you will either need to use Boot Camp or Parallels to run Windows on the Mac or you can probably access the files for reading without changing anything. Assuming you are giving the disk to the Mac, tell DU to partition to 1 (or 2 and adjust size) and specify Mac OS Extended (Journaled) which is probably the default. Were there a choice specify GUID Partition Table which the PC cannot handle. This is recommended for new disks inside the Mac but I not sure you can set it for externals. It must be specified before partitioning. All old data will be unaccessible. (Note: disk makers count 1GB as 1000^3 bytes but the OS counts 1GB as 1024^3 bytes etc. Thus your 750 GB disk has only 697 GB on the computer. This is not a formatting loss.) -Ken

Sep 21, 2009 | Maxtor Hard Drive

1 Answer

LaCie 500GB external will not show up on mac desktop. Blue light on, whirrs as if working but no icon on desktop (not mounted)


Did you format the drive using Disk Utility? Open "disk utility" from the dock icon or applications/utilities folder. Click the drive name on the left side of the disk utility window. click the "partition" tab in the window, next click the "options" tab and select GUID Partition scheme, or any Mac compatible scheme, read each explanation of the schemes. Name and resize your partitions, click apply. This is how it works running Leopard, not positive if the same applies to Tiger. I hope this helps you

Dec 14, 2008 | LaCie External USB 2.0 500GB 7200 RPM 500...

1 Answer

How do I reformat my 500gb external hard drive for my mac?


Well, you can plug it into your mac, and then open the applications folder on your mac(by opening the Macintosh HD icon first) and opening the utilities folder and selecting Disk Utility. Through disk utility, you can reformat any drive to Mac OS(preferably journaled.) so that you can use it with Time Machine, and the MAC OS.

May 01, 2008 | Computers & Internet

2 Answers

Using hard drive on a Mac


If the drive is empty, use disk utility to reformat the drive as HFS+. DO NOT DO THIS IF YOU HAVE DATA ON THE DRIVE!!! :-)

Dec 03, 2007 | Seagate 160GB 3.5" External USB Drive 160...

1 Answer

When we try to open dreamweaver it quits


It sounds like some components maybe missing or the application is corrupted. Try going into:

Hard drive/Applcations/Utilities/Disk Utility

You should see your hard drive on the left pane, select the volume under it, which usually is what youve named the drive or MACINTOSH HD if it hasn't been renamed. Select FIRST AID, then below select repair disk permissions. Restart the computer and try relaunching. If oyu still get the same "Unexpected quit" message, see if it gives you an error message code. If after you repair the permissions on your hard drive you still get the error, I'd uninstall and reinstall the OS, upgrade your OS X to the current 10.4.10...if the issue still occurs, your hard drive maybe failing.


Hope this helps.

Oct 20, 2007 | Apple iBook Mac Notebook

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