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What is the difference between Mac OS Extended and Mac OS Extended (Journaled)?

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Mac OS Extended(Journaled) is just the same as the first but with journalling turned on.

Journalling is not exclusive to the Mac OS as there are also journalling options in other operating systems

Journalling is a failsafe system that keeps a record of each operation before it is performed so that it can be traced back once a crash occurs

Journalling adds additional overhead that can result in slower overall performance


The performance hit is not that significant to most people but might affect power users

Posted on Nov 11, 2010

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The first part of the message is saying that you can't have a start up hard drive that is already partitioned. Did you try launching Boot Camp Assistant? If you look in your "Applications" folder and open the "Utilities" folder, it's there. I believe Boot Camp Assistant will create the partition you need.

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How to reformat external drive for mac


Connect the external hard drive to your mac
Open utilities folder from applications
click on disk utility
Highlight the hard disk you want to format. Careful not to choose Macintosh HD
Click Erase on the top
Select the format Macintosh OS Extended Journaled
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Most likely the hard drive is formated as NTFS and you will need to download a 3rd party app in order to write to an NTFS file system in Mac OS X, such as Tuxera NTFS or NTFS For Mac OS X
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I have a powerbook G4 and just purchased a Seagate 500 GB external hard drive and i can not drag and drop do i need to format something or what ?


Yes.
You should use the Disc Utility in Macintosh >Hard Drive> Applications>Utilities>Disc Utility to format the new externql to Mac OS Extended Journalrd or non-Journaled is fine.
For video applications I prefer non-Journaled.

Select the drive on the left side of the window to highlight it.
Select the Erase tab. (Top of window)
Select VolumeFormat: and Name:
In Secutity options select Zero Out Data, hit Erase (middle of window) and wait for formatting to complete.
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I work with OS X (mac) , I can not copy a file bigger that 4 GB into my WD my book. I 've tried to change the format, but i can just chose between : Mac OS Extended ( Journaled) ,Mac OS Extended, case-...


Hello,

Although Macs are designed to Read NTFS, they aren't designed to write to them and therefor cannot format a windows drive. If you are simply moving files onto the Mac from a windows PC you can format the drive using a PC and the Mac will be able to read and copy the files from the drive. If your goal is to have both windows and Mac read and write to the drive, your best bet is to use Mac OS Extended, then to buy and install Macdisk on your Windows PC. This will allow both to fully utilize the drive.

Any file size limitations you're running into at that point would have to be dealt with through compression or you may need to set up a NAS server that uses either NTFS or Linux format and copy files across the network rather than through a direct port like USB or FireWire.

Feel free to respond back and pick my brain if this advice only gets you half way solved.

Hope this helps FixYa,

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When you plug the drive, once mounted on the mac, go to applications>utilities>disk utilities then select the drive and choose partition. If you want the drive to be bootable you should then choose Mac OS Extended (journaled).
Cheers

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Plug your device into your mac, open "Disk Utilities," located in the "Utilities" folder in the "Applications" folder. Once it is opened select your device in the list on the left side, Now click where it says "RAID," now change the "Volume Format" to MAC OS Extended(Journaled).
Hope this helps!

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The hard drive volume format is only for MAC. Check the volume format if it is MAC OS Extended or MAC OS Extended (Journaled). If it is, then change it to MS DOS to make it readable and writable to a PC and MAC OS

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