Formatting external drive

Hi,
I have a macbook with OS X 10.4.11. I recently purchased a Mac Box Set to install Snow Leopard. Not wanting to lose precious files I purchased an iomega eGo portable hard drive (sadly not the Mac version). It arrived today and has instructions to format the drive for mac. Followed instructions, all seemed well until a drop down box appeared warning about losing data and erasing files. Didn't like the sound of that so thought I would seek advice. checked out the Iomega site and they recommended backing up important files - which is what I bought the external hard drive for!!
Basically, I just want to know will all my files be erased if I continue to format, or should I return the hard drive and purchase a Mac edition?
Apologies if this question has been answered previously.
Many thanks in advance for any helpful advice you can offer as I really just want to get on and install Snow Leopard.

The instructions for formatting your new iOmega drive will not harm the files on your MacBook. The iOmega with no files on it yet will be formatted thus erasing nothing because there's nothing on it yet. You just need to format it for Mac to use it with your MacBook.

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thanx tom,
first of, i like that you made the link appear as one word. how did you do that? it's really cool!
i downloaded the program, but i'm not sure how to use it... reading the guide just made me more confused... if i understand correctly, it will automatically reformat ALL my files to NTFS-3G ones, which are not as stable... i'm a little scared to install it... though i may have totally misunderstood what it says. i see mostly black when i try to read these kind of things...
anyone out there have experience with this program?

How to access an ex fat formatted external drive on OS 10.6.8

How do I access an ex fat formatted external drive on OS 10.6.8 ? Drive has audio files and was originally formatted and created by a Windows PC.
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Read this thread
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How to format external drive for mac AND pc use

hi
i want to format my external drive so i can use it on my mac and on pc's as well. i've gathered that the MS-DOS format is the way to go. my question is this: would this create any problems for my mac then?
can i partion one part for ms-dos and part for macos extended?
cheers
-j-

There are a couple of disadvantages with formatting a
disk as FAT32. Firstly, there is a limit on the file
size for FAT32. I think it like 2 GB so if you
capturing video the results will probably not fit
into this file limit. Secondly FAT32 will not be
bootable. I alway clone my system to a backup disk as
bootable. That way if anything goes wrong with my
system, I can just boot from my backup disk and fix
it.
The problem with doing this though is that the drive will not be usable with Windows (which was in the original posting) unless you use the third party MacDrive software on the PC.
iFelix

Format external drive for Mac and PC?

Can I format an external Drive to have 1 partition for OS X and another for my wife to use with her PC?
thanks!
ray

Yes, just use Disk Utility under OS X to create two volumes on it, one Mac OS Ext, the other FAT. Use a Master Boot Record partition scheme (also known as “fdisk”).

Error code -36 when copying to Mac formatted external drive

I'm trying to move my iPhoto library to an external drive to save space on my iMac's hard drive. It starts to copy it fine but after a few minutes stops with the error "The Finder can’t complete the operation because some data in “iPhoto Library” can’t be read or written. (Error code -36)"
The external drive is an iomega minimax and is formatted as "Mac OS extended (journaled)". I'm running Mac OS 10.6.3 and the iPhoto Library is for iPhoto '08 version 7.1.5.
Help! Thanks.

Kids birthday party today - sorry about the delay in replying.
This is an interesting problem, if disk integrity and space are not the problem.
My next step would be to use the command line to copy the library to your external disk. To do this, open Terminal and type:
cp -R ~/Pictures/iPhoto\ Library /volumes/yourextenaldiskname/Pictures/
Note that, if you have any spaces in your external disk name, you will need to put a backslash in front of the spaces.
Let me know how it goes.
Cheers,
Rodney

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All of a sudden my files from my MB Air (OS X 10.7.2) on a 300 GB Maxtor external drive disappereed. The more info shows 48GB are used on the disc; the format is: MS-DOS (Fat32); and there is another partition for my PC docs, and it's fine. Help!

Ok, confirmed. It is NTFS and according to the permissions I can only read it. The frustrating thing is that it says:
    - Capacity: 74.53 GB
    - Available: 50.35 GB
    - Used: 24.18 GB on disk
and yet at the bottom of the file list it shows "0 items"
Now the dilemma. The harddrive on my Windows laptop is very small (30GB) so I cannot copy all of my pictures to it. I could hook the old harddrive and the new harddrive up to it at the same time and move them from old to new, however...
The new harddrive is supposed to only be for the Mac so my intention was to format it that way. Because I am not sure if/how I am going to need it to resolve this issue, the box hasn't even been opened...so the first question is long term would it be better to have the new harddrive MAC or FAT32 formatted?
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Disk utility wont format external drive

Hi all
I have a friends 1 TB toshiba external drive, purchased at office works. I am trying to format it for NTFS so he can use it to watch the movies he is copying on any machine, xbox etc..
using disk utility I am erasing the 1tb drive with the NTFS format option, then I am creating the partition with NTFS but after formatting, it is only allowing me to read. I have tried formating the hard drive with Mac OSX journaled and then creating the partition at 1tb with NTFS, but getting the same issue.
I am a little confused as I just did the same thing with my 2TB drive I purchased from Office works as well.
any ideas?
bret

Hi Bret. I am not sure I fully understand the details of your problem - the mention of another drive (the 2TB one) confused me a little. I'll try to help though because it doesn't look like anyone has had a chance to reply to your question yet.
As far as I can see, OS X doesn't write to NTFS formatted drives by default. It appears you can enable it by altering the mount options, e.g. http://learnaholic.me/2013/11/11/enable-ntfs-write-on-mac-os-x-mavericks/
Alternatively, perhaps just formatting it as FAT32 would achieve your aim - although now that I check, it doesn't really look suitable as it has a 4GB file size limit and some of the movies could be over that.
Hope that helps.
Ivan

Formatting External drive for Mac05

I am trying to format a Western Digital external drive for Mac05 Extended (journaled) in order to transfer photos from my I photo program to free up space on my hard drive, as per suggestions received in this support site. I have downloaded information from Western digital, but it is coupled with 'How to partition and format an internal slave drive or an external drive in a Mac OS X." Once I select Disk utility, the drives are not displayed. Anyone have any suggestions how to format the external drive for Mac05 Extended (journaled)??

I am trying to format a Western Digital external drive for Mac05 Extended (journaled) in order to transfer photos from my I photo program to free up space on my hard drive, as per suggestions received in this support site. I have downloaded information from Western digital, but it is coupled with 'How to partition and format an internal slave drive or an external drive in a Mac OS X." Once I select Disk utility, the drives are not displayed. Anyone have any suggestions how to format the external drive for Mac05 Extended (journaled)??

Format external drive for use with both Leopard & XP, & maybe Win7

I want to repurpose one of my old small Firewire drives to use with both Leopard and XP via Boot Camp on my MacBook. It is is 60GB and is currently formatted with MacOS Extended Journaled, and Apple Partition Map. I don't think I will have any need at the present time to store files of more than 4GB on it (most of the ones I want to store are no more than a few hundred MB each).
Is using FAT32 with Master Boot Record adequate? Up until now I have just used flash drives for external Windows storage, but I would like to consolidate lots of topographic maps files onto this one Firewire drive instead of using multiple flash drives, and use these files with both Leopard and XP. If I want to try Windows 7 in the future via either Boot Camp or virtualization, will there be a problem with FAT32/MBR?

Hi,
using FAT32 as file system and MBR as partition table should work just fine with OSX and all Windows versions up to 7.
And since your files don't come close to 4GB single-file-size, that FAT32 limitation is no hinderance.
Use Disk Utility to do this, since Windows won't format partitions/drives with more than 32GB to FAT32 (built-in limitation).
Nonetheless it can use such partitions (I have a 200GB on my external HD).
Regards
Stefan
Message was edited by: Fortuny

Format External Drive - From Mac for Windows

I have a Maxtor One-touch that I need to back up a bunch of data for a Windows XP user. After some research, I thought that formatting the drive in the MS-DOS (FAT) format would do it, however, after doing so and moving all of the data, I have tried the Harddrive on a PC running Windows XP. The drive doesn't mount.
The external drive is a PC/MAC compatible version. Am I overlooking anything? Is there something I need to do in windows to access the drive.... because it's not obvious.

Hi Christopher,
follow either Templetons advise or (if not possible) use Disk Utility and set the partition scheme (behind the Options button) to MBR (Master Boot Record) and use MS-DOS (= FAT32) as file system.
That should also do the trick.
The 'standard' partition scheme on Intel Macs is GPT (GUID Partition Table) which can sometimes lead to the effect with Windows PC that you observed.
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Stefan

Format External Drive for HFS+ volume and FAT32 volume with Disk Utility

I just bought a Seagate 1tb external drive from OWC and I want to partition it into a HFS+ (journaled I assume) volume and a NTFS volume. Objective: To manually backup critical folders from my wife’s Dell (running XP) to the NTFS volume and critical Mac folders from my PowerBookG4 to the HFS volume.
My plan was to have my Mac (10.4.11) do the partitioning into a 350gb FAT32 volume for Windows and a 650gb HFS+ volume for Mac – then take the external drive to the Dell and have the Dell reformat the 350gb FAT drive to NTFS.
First question – Is this possible overall?
Second question – I haven’t been able to get my Disk Utility on my Mac to do the initial partitioning into one HFS volume and one FAT32 volume the way I want it. Is this step possible?
I’m happy to be more specific about the steps I’ve taken if the basic plan is good. From what I’ve found in some forums so far, I think I’m on the right track but am unable to execute it. Thank you.

Thank you Limnos for all your help. Last night I tried again and it worked! I’ not totally sure on what I did right but:
• Both volumes on the new ext. driver were HFS (from my last attempt the other day) so I looked into a simple erase of one partition/volume into a different format, but DU did not offer a way of erasing it into MS-DOS(FAT32). But I think I did a simple HFS erase anyway of the volume I wanted to format to FAT32. There was nothing “in” that volume because this was a new external drive but I figured it could not hurt anything.
• So then, I think I went back to Partition, locked the partition/volume that I wanted to keep in HFS+ for my Mac files, and (re)partitioned the other just erased volume to MS-DOS. I think I did it under the MBR option.
• It worked! Not sure why but my Mac recognized both volumes one as HFS, the other as FAT32. Maybe someone will find this useful some day!!
• Then, I hooked up the drive to my work Dell, the Dell found only the FAT32 drive (as expected), and I executed a short simple easy command I found on ehow.com (search for ‘convert FAT32 to NTFS’) to make that volume NTFS.
Thanks again Limnos and everyone else!

Can't format external drive for Mac

I got an external Seagate Freeagent 750GB drive to use with my new Mini. It came formatted as a windows FAT volume. Since I don't have a FW400 to FW 800 cable yet, I have it connected via USB. When I try to reformat as a Mac drive (with any of the 4 case-sensitive / journaled options), I get an error, but I can then reformat as FAT. Does anyone know how I can format this drive as mac and what the problem is?

It may have something to do with the partition scheme. There are at least three different schemes. One is used for windows formats (so you can use FAT32 or NTFS format), one is used for Intel Mac (probably GUID, not sure), and one is used for PowerPC Mac (probably the Apple Partition Map, again not sure). I don't know whether it is smart enough to choose the appropriate scheme for you when you have selected a format for your partition. Try to select the right scheme for Intel Mac first, and then decide on the format on each (if you have more than one partition on that disk) partitions.
I think you have to make sure the format is compatible with the scheme, especially when you have multiple partitions on one disk. You can't format one partition to FAT32 and another to HFS+, although it will try to do something, but it will end up with error.

How to format external drive

Hi,
I purchased a 160 Gig external drive. I want to be able to do an easy backup to it so I assume FAT 32 will not work as file sizes will be greater than 4 Gig, also clicking and dragging doesn't work because of all of the file name errors make it difficult to be sure everything is copied. I would also like to use this every once in awhile to sync music files with my PC but if that is a problem I can work around it.
What format should I use, and what application is easiest at backing up all of the data well. Preferably cheaply or free as well. It is too bad macs don't come with a backup program, or do they??

The Mac OS Extended file system (HFS+) is the Mac equivalent of FAT-32, in that the minimum allocation block size is maintained at 4K, regardless of drive size. The older Mac OS Standard (HFS) file system caused a continuous increase in the minimum allocation block size, when formatting larger and larger drives. Small files parked in oversized allocation blocks caused a considerable waste of storage capacity, so that a large drive would fill up quickly. Journaling is an option that you chose, when you formatted the USB hard drive as an HFS+ volume. As the name indicates, a journal of the hard drive's activity is maintained, to assist in restoring it to the last reliable state, following a crash or power interruption. You can read about it here.

How to format external drive as MS-DOS (FAT)

How do I format the external drive as MS-DOS (FAT)?
I followed the instructions and have Disk Utility open for the external drive. Then > Erase > changed format from Mac OS to ExFAT and did the same with the RAID tab. But this does not change the Format from Mac OS Extended (Journaled).
Thanks in advance for any advice..........It's never easy is it?

biddymon wrote:
Snip snip...........and I appreciate your sense of humor. Unfortunately mine is in the sleep mode at this stage of the game.
(3) Boot Camp 4. downloaded to 16-GB flash drive, which is recognized in Windows but will not install due to following prompt: "The version of this file is not compatible with the version of Windows you're running. Check your computer's system information to see whether you need an x86 (32-bit) or x-64 (64-bit) version of this program, and then contact the software publisher." This flash drive is formatted as MS-DOS (FAT), although ExFAT was an alternative.
OK, that does not suggest a disk format problem, but it does suggest that (as it says) you have the wrong Boot Camp version, or the wrong Windows version. ie, you have a 32bit version of Windows installed and you may have a 64bit version of Boot Camp on your Flashdrive.
I'll be back shortly, I'll get links for the various versions of Boot Camp, if there is no 32bit version for your Mac a reinstall of Windows is indicated, the 64bit version though.
OK
Even better, here is a link to a page with all the versions, if you click the version name a description will be displayed, find the correct one for your Mac and version of Windows.
Finally this page contains a model by model breakdown of which version of Windows will run on which model of Mac.

How to Format external drive previously formatted for NSLU2

Windows XP.
I've had two external hard drives connected to my NSLU2 for several years. Always worked properly. Nevery any problems accessing files from either drive. Now, I'd like to remove one external drive and no longer use it with the NSLU2 (Disk 1). I just want to use it as a "regular" external drive and connect it directly to my PC by USB. When I plug it into my PC, it is not visible in Windows Explorer. When I right click "My Computer" and select "Manage", I can see it in the "Disk Management" section, but there is no drive letter assigned to it. It has partitions. When I right click on any partition, the "Format" option is grayed out and cannot be selected. Also, the "Change Drive Letter..." option is grayed out and cannot be selected. How can I format this disk back to whatever it needs to be in order to use it as a regular external drive? NOTE: I do not need to keep any files on the drive. I've already transferred the files I need to another drive. Thanks!

Never mind. I figured it out. I downloaded a free utility for formatting large drives in FAT32. The utility ran a quick format in just a few seconds and then the drive became available in Windows Explorer where I can now perform a complete format or just use as-is.

Formatting external drive

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