How do I format an external drive with mountain lion?

Applications > Utilities > Disk Utility
select the external drive in the left pane
partition and format in the right pane

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How to format an external HD with Mountain Lion ?

I am trying to format a brand new 3TB extrnal drive to Mac OS Extended using Disk Utility under Mountain Lion, so I can hook up my Stardom Safe Capsule to my Time Capsule and increase its storage capacity.
I am getting the same error every time: "Wiping Volume Data to Prevent Future Accidental Probing failed" when using Disk Utility Erase function. And then the process stops.
I do not have an older version OS startup disk, so I can not revert back to Lion or earlier.
What should I do ?
Many thanks in advance.

For all good order, here is the log from the Disk Utility:
2012-12-07 21:18:03 +0100: Disk Utility started.
2012-12-07 21:21:46 +0100: Preparing to partition disk: “WDC WD30 EZRX-00DC0B0 Media”
2012-12-07 21:21:46 +0100:     Partition Scheme: GUID Partition Table
2012-12-07 21:21:46 +0100:     1 partition will be created
2012-12-07 21:21:46 +0100:
2012-12-07 21:21:46 +0100:     Partition 1
2012-12-07 21:21:46 +0100:         Name        : “Gardermoen”
2012-12-07 21:21:46 +0100:         Size        : 3 TB
2012-12-07 21:21:46 +0100:         File system    : Mac OS Extended (Journaled)
2012-12-07 21:21:46 +0100:
2012-12-07 21:21:46 +0100: Unmounting disk
2012-12-07 21:27:59 +0100: Partition failed for disk WDC WD30 EZRX-00DC0B0 Media Wiping volume data to prevent future accidental probing failed.
B*gger. :-(

How do I format an external HD with Recovery Disk Assistant on?

Hi,
I have seen a couple of threads on this, but I'm still not "Compos Mentis" with how to format an external drive with the Recovery Disk Assistant on.
I have a 320GB which has my recovery disk assistant on - "Don't ask!" - Anyway it goes without saying that I want it all back, but I'll be damned if I can get there. I have managed to view (after a lot of faffing) what I thought was the External Drive, but now realise that it's not...this is what I am now seeing - are these removable via partition (disk0s1 & Recovery HD) as I have been merrily trying to erase them in he belief that they were the external HD and as far as I can see nothing has changed...only my annoyance!
Anyway in short, I need this
A) view the external drive and
B) Format it back to 320GB
Can anyone spoon feed me a way out?
Thanks

I don't understand what you mean by, "how to format an external drive with the Recovery Disk Assistant on."
You don't need to use the Recovery HD to format an external drive. Just use Disk Utility:
Drive Preparation
1. Open Disk Utility in your Utilities folder.
2. After DU loads select your hard drive (this is the entry with the mfgr.'s ID and size) from the left side list. Click on the Partition tab in the DU main window.
3. Under the Volume Scheme heading set the number of partitions from the drop down menu to one. Click on the Options button, set the partition scheme to GUID then click on the OK button. Set the format type to Mac OS Extended (Journaled.) Click on the Partition button and wait until the process has completed.
4. Select the volume you just created (this is the sub-entry under the drive entry) from the left side list. Click on the Erase tab in the DU main window.
5. Set the format type to Mac OS Extended (Journaled.) Click on the Security button, check the button for Zero Data and click on OK to return to the Erase window.
6. Click on the Erase button. The format process can take up to several hours depending upon the drive size.
Steps 4-6 are optional but should be used on a drive that has never been formatted before, if the format type is not Mac OS Extended, if the partition scheme has been changed, or if a different operating system (not OS X) has been installed on the drive.

If I replace my old iMac with a new one can I burn DVDs on an external drive using Mountain Lion or Toast?

My 2006 iMac is getting a bit long in the tooth and I was thinking of replacing it with a new one. However, Mac have not included an optical drive and I back up my photographs on DVD as well as external hard drives. I also supply DVDs of my work to friends etc.
Will I be able to burn to an external drive using Mountain Lion or other software such as Toast? Does the burn option still exist on the new machines?

Hello,
You shouldn't have any problem, if you do just try Burn...
http://burn-osx.sourceforge.net/Pages/English/home.html

How can i use an external screen on mountain lion when i'm running on battery power?

Hey all:
I just upgraded from snow leopard to Mountain Lion, and i use external screen, keyboard and mouse all the time....
On Mountain Lion it's perfect when the power adaptor is connected as soon as you close the LID your external screen becomes the primary screeen and it's fully functional desktop (no mirroring or extension screen)
But the problem is when i'm in battery power, in snow leopard i used to close my lid my mac goes to sleep then i wake it up using the mouse and immediately open the LID so it doesn't go to sleep again and now i'm running on battery power with a primary external screen.
Any idea how to use an external screen on mountain lion while i'm on battery power? (i know i can use mirroring but i want just 1 primary screen and the laptop screen would be turned off )
Thanks for the help.....
Sherif

Sherif Daniel wrote:
my question is how to use an external display with mountain lion when i'm running on the laptop battery not connecting the ac adaptor?
Thanks again
You can't with the lid closed, that's one of the rules for clamshell mode.
http://support.apple.com/kb/ht3131

Hello,i have a retina with Mountain Lion.I have logic PRO 7 and logic Pro 8 ,with G5.I can't use the CD with the retina!!It's not a powerpC!!How do i install Logic Studio 8 with Mountain Lion successfully ?too évolution Logic PRO 9?

Hello,i have a retina with Mountain Lion.I have logic PRO 7 and logic Pro 8 ,with G5.I can't use the CD with the retina!!It's not a powerpC!!How do i install Logic Studio 8 with Mountain Lion successfully ?too évolution Logic PRO 9?

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How to I enable IR on Mac with Mountain Lion. Would like to use remote control to flip slides on powerpoint.

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Re: Leone's post May 2014 about how to best use an external drive with Aperture

I am trying to find Leone who had a great post May 2014 to Diane. I posted tho same message as a 'Reply' to the Leone/Diane posts but then was worried it would not show up since that was some time ago so I decided I should post it as new. Apologies if it comes through twice. I am having trouble as indicated below:
I found this response to the question about Aperture and external hard drives from last May. I bought a WD My Book 4TB and need to back up photos I have in Aperture (many!) to free up space. I am a photographer and need to be able to plug the external drive in as needed, pull a photo out from the WD and back into Aperture to work on it if needed.
I read your directions to Diane and have the external drive formatted Mac OS Extended (Journaled). I read the two ways you suggest to move part or all of my library to an external drive and still be able to use it in Aperture with all the metadata saved, as I need to continue to work with the images. I am not completely clear about the advantage of the 'referenced' method but decided to go with the Split Library because it sounded like the Referenced method would still keep originals (and take space) in Aperture. I'm not sure about this, but that was what I chose.
I have backed up my computer, formatted the drive then went to Aperture to begin. I do the 'Export' and it shows the external drive it will go to but when I click 'OK', it says "EXPORT LIBRARY FAILED - Library could not be create because the file system of the destination volume is not supported." I doubled checked to be sure the drive was Journaled which it was. I did call WD and talk to them but they told me this was outside their area.
Also, in Aperture, I have my photos in Projects by yymmdd. Is it possible to transfer Projects into the ext. drive without having to break them out of the Projects?
Any direction anyone might give would be greatly appreciated, Sandy

Hi Sandy,
I suggest taking a week or two to get to know Aperture better before proceeding. Aperture can do many things, and can do what you want. It's important to be specific about what you want, however. From what you've said, it appears that you don't yet know.
bybeeler wrote:
[1] I found this response to the question about Aperture and external hard drives from last May. I bought a WD My Book 4TB and need to back up photos I have in Aperture (many!) to free up space.
[2] I am a photographer and need to be able to plug the external drive in as needed, pull a photo out from the WD and back into Aperture to work on it if needed.
[1] A back-up is a copy of digital files stores on a separate device. A back-up is recommended because drives fail, and humans make mistakes. A back-up is not used to free up storage space.
[2] Aperture can be set up in many equally-usable ways. The program files reside (almost always) on your system drive. The data files can be anywhere you want them, as long as they are on locally-mounted drive(s). The main data file is your Library. The best place for it is on the drive that has the fastest throughput to your logic board. This is, in nearly 100% of machines, the system drive. But Aperture functions well with Libraries of secondary drives — internal or external — with sufficient throughput. USB-3 and Thunderbolt I (& II) provide sufficient throughput for using an Aperture Library on a secondary drive.
Nearly all photographers will fill whatever storage space is available (making data is what photographers do). The question is: what do you do when your Library no longer fits on your system drive? (And remember, you should leave at least 10% (I recommend 20% for heavy users of Aperture) of your system drive free.) The answer depends, primarily, on whether your computer is portable or fixed in location.
If fixed, just buy a more-than-large-enough secondary drive of USB-3 or faster throughput, mount it permanently, and move (using Finder) your Library to it.
If your computer is portable (and you can't increase the on-board storage), you have to select the best from several confusing alternatives:
• Put your Library on an external drive with throughput at least as fast as USB-3
— Pros: Easy to maintain and back-up.
— Cons: Must have drive with you in order to use your Library.
• Leave your Library on your system drive, but relocate your Images' Originals to an external drive.
— Pros: You can work on your Library without having the external drive available.
— Cons: You can't export (except Previews), Print, or make adjustments until your external drive is mounted. Significantly more difficult to administer, especially importing and backing-up.
• Leave your Library and and _some_ of your Images' Originals on your system drive, and relocate most of your Image's Originals to an external drive.
— Pros: You can do any work on those Images whose Originals are stored in the Library regardless of where the external drive is.
— Cons: Yet another level more difficult to administer.
If you are comfortable with the administrative overhead, the third set-up will be the most rewarding. Keep all _current_ Images Originals inside your Library, and routinely relocate the Originals of Images no longer current to the external drive.
In no case is it recommended that you at any time remove from your Library an Image (not the Original — the Image in Aperture) that you expect to ever use again.
HTH,
—Kirby.

How to re-format an external drive?

I had a G3 iMac with a 160 GB internal drive that was running an earlier version of OS-X. When I installed that drive, there was a limitation that only allowed it to recognize about 120 GB of that drive.
I now have an iMac G5 and want to use the 160 GB drive from the G3 iMac as an external USB drive. When I connect it to the G5 iMac, the drive is recognized, but only shows a total of 120 GB of total space.
How can I reformat this external drive to allow it to recognize the entire 160 GB of space which the newer versions of OS-X now can do?
Thanks,
Bart

Thanks! My problem is solved. When I was in Disk Utility, I had been clicking on the partition name in the list on the left side of the window. It wasn't until I clicked on the level above the partition name (which I assume represents the actual hard drive) that the Partition tab became available. Once I could get to the partition window, it was quick and easy to delete the old partition and create a newer one that recognized the whole amount of space on the drive.
Thanks!

How can i format an external drive so as to read and write from both windows and mac side

i recently bought a macbook pro and used bootcamp so as to be able to run win7 and mac. I now wish to have an external drive so as to backup and tranfer files between the two os's. Specifically to read and write form either windows or mac. How can I do this?

Format it as FAT.

How do I restore from external drive, with outdated back-up software?

I mistakenly kept using my LaCie external drive's Silver keeper softerware after upgrading my Mac OS. My SilverKeeper version is 1.1.2, which I now know is incompatible with my Mac 10.4.6. (Maybe that is why I got an error report when I
ran the Mac diagnostic disk on the LaCie.) In any event, after suffering a major crash (Kernal attack, and resulting reformat of the hard drive), I am wondering how to attempt a restore from the LaCie. Should I try it with the software that actually created the LaCie back up that I have; or should I reinstall the appropriate version of SilverKeeper first?
I have been plugging along with some CD back-ups of the LaCie, but this is quite frustrating since it has to be done manually. Is it possible to download an upgrade to the back-up disk directly? And if so, would this really help matters?
As you can see, I'm really a bit of an idiot about these matters; so any ANY help will be most appreciated.

My own opinion is that you should install the later appropriate version of Silverkeeper. That said, I would in fact recommend if you can wait a few days for an answer, that you email the La Cie Silverkeeper backup team via the email link on the site at http://www.lacie.com/silverkeeper/
They are careful to say they are not officially providing a backup service, but when I emailed them with a query regarding usage about a year ago after downloading Silverkeeper for myself, I got a reply within a couple of days that cleared up my question.

How do I use an external drive with iTunes

I want to use an external drive (Windows XP & USB) for My Music Library. iTunes is running on the 'C' drive and points to the external drive. When I 'add folders' the music is available and plays, but I don't have my playlists or the play count / last played data. I have copied the 2 iTunes Library files into the exact same location on the external drive (My Music\iTunes). Either iTunes or Windows moves these files to the 'C' drive My Music\iTunes folder, and I don't have problem with these files on the 'C' drive as long as the music/video files reside on the external drive. I would like to set this up so the external drive looks and responds just like if the library was on the 'C' drive.
Can someone help me get this right so it works?
Thank you very much
iPod 60GB Video Windows XP USB 120GB External drive w/42GB of My Music

Have a look at this article in the Apple Knowledge Base.

Best rgb and gamma settings for external monitor with mountain lion

Hi,
I'm using an LG LED 22 inch monitor with my MBP mid 2010 via minidisplay to hdmi. on OS X side the settings have been default. On the LED side the settings , if set to preset RGB it tends to fade the whites a lot. when i set to user definied and let the preset rgb be at it is, the colors are quote decent. currently they are on R 50, G 58 and B 59 and Gamma 1. Which is the best RGB and Gamma value for OS X Mountain Lion?

Welcome to the forum.
First off, you need to go and buy a hardware monitor calibrator, such as an OptixXR or similar. This will build a custom monitor profile for your specific screen. Without this starting point you can forget ANY attempt at accurate colour matching.
Never (and I mean never) use a working space such as sRGB or Adobe98 as your monitor profile, that's not what they are designed for. Working spaces control what colours are possible in the image, monitor profiles control how those colours are shown on screen. Aperture uses it's own working space so you don't have to worry about that too much.
To answer the rest far too briefly, I'd suggest setting the proofing profile to sRGB and of course use sRGB for the export preset. The gamma setting you will have to adjust depending on how dark the Lightjet prints look compared to your screen. You will have to do test-strips to start with.
Your images looking crap on flickr on Windows machines is partly because Windows web browsers generally do NO colour correction, and only partly to do with the different gamma.
Ian

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How do I format an external drive with mountain lion?

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