OS X :: Formatting USB Stick On FAT32 System
Nov 14, 2009
For some reason, my USB stick is no longer read on Windows machines. They say it must be formatted. It is formatted as FAT32 and my Mac can read and write to it fine. I seem to recall this happening around when Snow Leopard was released - instead of deleting all the data, I'd usually just re-format it. Is Snow Leopard's partitioning and formatting for FAT32 changed? This is really irritating as it pretty much renders my USB drive useless. As I said, works fine on my Mac (haven't been able to try any other Macs).
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May 30, 2012
I am currently trying to reformat an old usb stick. But struggling to get it working. I've included pictures below of the info page. When I go to disk utility all options are grayed out on this disk. After looking at terminal I believe the permissions for the disk are actually for 'staff'.
Info:
MacBook Pro, Mac OS X (10.7.3)
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Jan 24, 2010
I just bout this Western Digital External Hard drive, Passport SE. Anyways, I formatted it to MS-DOS (FAT) so I can use on mac and/or windows. One of the other main reasons I bought it was so I could use it to watch videos on my Xbox 360.
Now I've seen tutorials online with windows how to re-format it to FAT32 so it works properly on xbox 360 but cannot figure it out on mac? On some of the tutorials they use certain programs to do it, is there something like that for mac I can download? Is fat32 and fat the same? I know there has to be a way for me to be able to format it to FAT32 using mac.
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Jun 5, 2012
what are the disadvantages of formatting an external drive as FAT32?
Info:
MacBook Pro
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Jan 19, 2008
I have an external hard drive that I was previously using on PC, having attempted to use it on a Mac, it will not write to it. I've found that I have to format to FAT32, which I think i can just about manage (yes, im a girl) but my concern is, if i format through the MAC, will i then lose what's on the hard disk as the tab says 'erase'? I have a lot of images on the hard disk so am a little petrified! Any advice for this really basic question would be appreciated!
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Nov 1, 2009
I set up a triple-boot system on my MBP (Early 2008) with OS X SL, ubuntu 9.10 and Windows 7 Home Premium. I have a 500GB Hard Drive, and allocated 100 GB for Mac OS X, 60 GB for Windows 7, 40 GB for ubuntu, and the remainder I formatted as FAT32 for storage to share between the three operating systems (to hold iTunes and iPhoto libraries, movies, etc).
I use rEFIt as my bootloader, and all three operating systems happily load whenever I choose them to. The problem lies with the FAT32 storage partition. OS X recognizes it quite nicely and I use it regularly. Windows and ubuntu, however, do not mount it. What's more, Windows Disk Manager identifies the space as unallocated space.
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Aug 10, 2009
I just received my 1GB stick and put it in slot 4, however on restart the system only shows 2GB! (When it should show 4), saying slots 2 and 3 are empty.So I removed all the sticks and put this new one in slot 1... it doesn't boot up!
It's a kingston MP1066/1G, purchased from ebuyer but what I did noticed was that the seal had already been broken
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Feb 10, 2009
I have a 640GB WD Black hard drive in my computer, and that I had accidentally formatted during my creation of a XP boot camp drive (I have another hard drive in the MacPro with this present). At the time I lost a majority of my media and had to rerip it all (learned my backup lesson there). So when it was reformatted it was changed from OSX extended journaled to MS-DOS Fat. I then used the drive to store the media on again as I reripped and pulled some from Time Machine. I kept running into problems where some files would not copy over.
So I reformatted a different drive and copied all the media to it, which fixes the other issues, and now I'm trying to reformat the MS-DOS 640 GB drive back to osx extended journaled. When I use disk utility I select the drive, and change the volume format from MS-DOS (FAT) to Mac OS Extended (Journaled) and click Erase and then it stops and says "Disk Erase failed. With the error: File system formatting failed"
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Nov 4, 2010
Just put a new Hard Drive into my Imac Dual Core. I Know I need to start up from the CD drive to format the disk... I am holding down the "C" key at startup but it isn't reading the drive.
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Jan 19, 2009
I was wondering if there is a small file size limit to the FAT32 file system. I recently picked up a 1TB WD external with Firewire (pre-formatted FAT32) and have been transferring movies and such fine, but I just tried transferring an HD movie (5GB) and some large .dmg's/.iso's and they all just fail with an error.
Is this a size limitation, and will i need to reformat the drive to fix it, or is there something else I'm missing?
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Mar 15, 2012
When ever I copy some files or create a file in my external USB drive which is a FAT32 one. file permissions are not preserved. All files/folders has 777 are permission. Is this how it work in mac or am I missing something?
Info:
MacBookPro5,3, Mac OS X (10.6.5)
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May 12, 2012
can you tell me how to repair system files without formatting my hard disk.
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Jun 23, 2012
I want to import photos from my Sony memory stick pro duo to iMac. My imac has SD card reader but not sure whether it reads photos from memory stick pro..
i bought this iMac in May 2011. I believe this model doesn't support Memory stick pro.
Info:
iMac (21.5-inch Mid 2011)
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Jan 8, 2011
I have a Mac OS X install on a hard drive which I've removed from my system due to installing a new SSD with a brand new install of OS X. I'd like to use the old 500GB drive as a storage/backup drive, but the file system/all my data is still intact on the drive. This could be useful as I want to keep all my data and would save me having to copy across to another drive, format the entire disk and then copy it all back.
I'm just a bit worried about what to do with the system files that were on there... can I just move all the files I want to keep out of the usual Mac home folders and then just delete all the system folders as if they were never there? Or do I have to re-format/re-partition to get the most out of the 'new' media drive?
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Nov 15, 2010
thinking about putting the image to an external, as a seperate partition.
then use the usb stick, as my usb stick. Good idea?
it looks kinda flimsy, not sure how it will hold up.
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Dec 25, 2009
So my question is simple. I have the base 13" mbp. So I have 2 x 1GB sticks. Can I get 1 x 4GB stick and make that total 5GB? Or do I have to purchase in pairs (2 x 4GB)?
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Jan 4, 2008
I'm intending on buying an iMac in a few days, just waiting for Macworld to come and go.
My question is this. I currently have 3 external Hard Drives on my PC. 2 x 360GB and 1 x 500GB. These contain MP3's, Photos/Videos, FLAC (Uncompressed Audio) respectively. Each disc is probably around 2 thirds full. They are all in formatted to NTFS.
Is there anyway that I can convert them to FAT32 without losing the Data so that the iMac can Read and Write to them when I swap them over to the Mac? (and is this even a good idea as I understand that FAT32 is extremely inefficient with volumes of this size)
The only alternative I can think off is to copy everything from the disks to the internal mac drive, reformat the USB drive for the mac and then copy everything back..
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Jul 31, 2009
I am looking for an OSX app which will backup an external Fat32 drive to another external Fat32 using Leopard machine.
My machine is bootcamp-ed to switch between OSX and XP for work. I keep the working files on an external Fat32 drive for maximum compatibility.
I have searched for a Mac app which will support Fat32 backup, but have not had any luck. IE -- Time Machine / Superduper do seem to properly read / write to Fat32.
Also, is there an app which can backup files from an external Mac Journalled drive to Fat32? This backup is just to make copies of files (like .mp3 and .doc) -- not a bootable backup of the applications folder. I have bootable backups of my primary OSX drive using Time Machine and Superduper on Mac drives.
I would prefer a OSX app for this. I tried mounting the backup drive to XP, but it does not see the drive. Therefore, I would prefer to not rely on a Windows app solution.
If it helps -- the backup drive (a 1TB WD MyBook) has four partitions: three Fat32 drives and one Mac Journalled (for a bootable Superduper backup). The working drive I want to back up is a 320G WD Passport. The 1TB runs through a Firewire 800 port and the 320G runs through a USB 2.0 port. Hope these items do not matter.
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Dec 6, 2009
I formated a new 1.5TB WD hard drive, using the eSATA cable - in the FAT32 format so I can use it on my PC as well. (It was formatted on the MAC)
I was working on the Hard Drive via eSATA and the express card. Then the Hard Drive was accidentally unplugged. Subsequently, my MacBook Pro didn't like that and gave the warning message to properly eject ... too late! I restarted the MAC and it still won't recognize it - I've tried eSATA, USB, firewire- and nothing. The hard drive was all 3 connections. So, I tested the HD on a friend's MacBook Pro and the hard drive is recognized without any hesitation and it works fine. So, there is nothing wrong with the Hard Drive - its my MacBook that won't recognize it.
The HD won't even show up in disk utility of my MAC. I've restarted many many times and I've tried every port available.
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Oct 2, 2007
Its a big 'ol drive that I've filled up with allot of important stuff and now its acting up. So none of my mac dick utilities will work on it. Should I try and use a disk utility from Virtual PC? Does any one know if that will work or if it will cause me more problems in the future?
Information:
Dual 2Ghz G5 and a 30gig video ipod
Mac OS X (10.4.10)
300GB WD, 80GB Lacie, DSL
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Dec 25, 2008
I am using this guide to get a new HD into my PS3: [URL:...] It says that the HD I back my PS3 up to needs to be formatted to FAT32. I have an external HD that I use with my mac, its partitioned into 4 parts. I have one partition which I don't use which I want to back my PS3 onto. In Disk Utility I select that partition and I only get 4 option under the Erase tab, 4 different Mac OS Extended options.
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Apr 11, 2009
I have a fall 2008 model macbook, 2.4 GHz 4GB ram, etc. I run windows XP SP3 on bootcamp, with a fat32 partition. I believe the external harddrive I run games from is also fat32 formatted.
I've had enough problems with transferring files over 4GB that i've decided to attempt to convert from fat32 to ntfs. I'd like to do it while on my windows partition, with the CONVERT C: /FS:NTFS in the command prompt. What precautions should I take before I attempt this? How difficult will it be to also convert my external drive to ntfs? Will anything be deleted in the process? Will I still be able to use parallels?
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Jun 20, 2009
What is the best way to make a FAT32 partition on a MacBook's internal hard drive? (I plan to use it to share files between OS X and Windows.) I did some research on this, and some people say to use Disk Utility, however, the only disk format available for me is "Mac OS Extended (Journaled)" and there are no FAT32 or FAT or MS-DOS options. Perhaps those options were taken out since then(?). One other person said to create the partition using Windows, which I think would work, but I'm a little worried about that because I've read that editing partitions outside of OS X can prevent Boot Camp from seeing the partitions.
I'm thinking that my best bet would be using Windows to shrink its own partition, then turning the resulting unformatted space into a FAT32 partition. Since I'm not touching the OS X partition I'm hoping there wouldn't be any problems. I just wanted to confirm whether or not that would work and/or what a better method would be.
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Jun 24, 2009
i'm looking into buying a 500GB WD My Passport Studio Edition for my 17" MacBook Pro...
I've been reading online that people are having issues with the FAT32 Formatted Passports not being recognized with the FireWire but work fine via USB 2.0...
is there truth to this problem with the FireWire and is anyone else having such issues? I've been all over and see the problem, but no solution or results.
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Nov 15, 2009
i am trying to install Windows on my Mac. i created the partition (+/- 20gigs) and ive inserted the Windows disc. the installation works fine although i noticed that i don't get the page that gives me the option to choose between ntfs or fat32... yet it continues, and says windows is installed... but when it reboots, it goes directly to my mac-osx
im not too good with computers but i've managed to find a lot of threads that were talking about my problem but none of them could really correct the problem.
some people said that it might be the version of windows that could be the source of the problem.
i have Windows Xp Corporate version. might that be the problem?
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Jul 2, 2010
I have a macbook pro with an external harddrive formatted to MS-DOS FAT32 and want it to accept files bigger then 4gb (ie. HD Movies). Is there a way to change the individual movie files to be accepted by the Harddrive or do I have to reformat the harddrive completely?
If I do have to reformat my harddrive what format should i do so?
I want my external harddrive to be able to work on Windows and MacOS as well as accept files of any size (ie. over 4gb at least)
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Sep 15, 2010
I have a fat32 formatted compact flash card I am using in my vehicle for mp3 playback.
When I delete folders off of this through Finder, Finder shows as if they were deleted, but when you read the card on a Windows machine, or in my vehicle, the folder was not really deleted and remains.
I have found that it seems like you can only WRITE to the compact flash. You can't erase.
I had to reformat the entire card to fat32 and then rewrite everything just to change the contents of it.
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Oct 27, 2007
I was using my external hard drive with my mac and its formatted in the MAC HF(something like that) file system. I would like to format that external hard drive such that the file system is either NTFS or FAT32 so that I can use it on my windows partition running on boot camp. I am asking this question since I am planning to get a new HD for my mac and use the old one with windows.
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Sep 16, 2008
I have to do a back up (I'm cutting in Avid) on this FAT32 volume (for interoperability it is formatted this way), but I can't mount it via the Disk Utility or the 'mount' command in Terminal (it doesn't list the device, despite seeing it in Disk Utility - the volume is greyed out).The drive is connected via Firewire 400 and 800, USB is not available (to few slots).
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Jun 28, 2009
I have a USB harddrive and am wondering whether I can repartition it from MS-DOS(FAT32) to a format that will hold my video files from iMovie.
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