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  1. #1

    Join Date
    Mar 2005
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    Default How do I regain write privileges to my external drive?

    When I got my new Mac mini (Leopard) I did the old transfer via Firewire from my eMac (Tiger) but now I only have read access to an external drive I was using with the eMac.
    How do I regain full privileges to that drive? I'm guessing it requires some commands in Terminal but my Terminalese is rather poor so can somebody please help me out?

  2. #2

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    Default

    I might have found the answer at Macosxhints.

    There's a 'uchg' flag that needs to be removed with the following command:
    sudo chflags nouchg "/Volumes/My Book".

    I'll try it out tonight when I'm back at my Mac.

  3. #3

    Join Date
    Apr 2009
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    Default

    May be a lot more simple.

    Click on the disk, and do "Get Info".

    Turn on the checkbox under the permissions section that says "Ignore Ownership on this Volume" and see if that resolves it"?

  4. #4

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    Default

    Quote Originally Posted by keyoptions View Post
    May be a lot more simple.

    Click on the disk, and do "Get Info".

    Turn on the checkbox under the permissions section that says "Ignore Ownership on this Volume" and see if that resolves it"?
    I wish it was that simple. Get Info, Sharing & Permissions just shows "You can only read". No check boxes.

    Thanks for having a go anyway keyoptions.

    Actually, there's more to this than I originally laid out. The external hard drive in question is not actually the drive I had connected to the eMac (that drive is now my Time Machine) it just contains the data from that drive (I forgot that bit).

    What I've (stupidly) done is copy the contents from a FAT32 formatted drive to a Windows NTFS formatted drive.

    Here's the info from Disk Utility:
    Code:
    	Name : 	Iomega HDD
    	Type : 	Volume
    
    	Disk Identifier : 	disk2s1
    	Mount Point : 	/Volumes/Iomega HDD
    	File System : 	Windows NT File System (NTFS)
    	Connection Bus : 	USB
    	Device Tree : 	/PCI0@0/EHC1@4,1/@3:1
    	Writable : 	No
    	Capacity : 	931.5 GB (1,000,202,241,024 Bytes)
    	Free Space : 	701.9 GB (753,630,699,520 Bytes)
    	Used : 	229.6 GB (246,571,540,480 Bytes)
    	Number of Files : 	2,449
    	Number of Folders : 	0
    	Owners Enabled : 	No
    	Can Turn Owners Off : 	No
    	Can Be Formatted : 	No
    	Bootable : 	No
    	Supports Journaling : 	No
    	Journaled : 	No
    	Disk Number : 	2
    	Partition Number : 	1
    There's lots of No's that I don't like the look of. I should have formatted this f@#$%er before copying stuff over (I used a Windoze laptop to do the transfer so NTFS wasn't a problem).

    Google pointed me to a thing call MacFUSE (link 1, link 2, link 3), which seems to be the answer but also a major PITA.

    I think I need to borrow another external drive to dump the stuff off the Iomega on to and then format the Iomega to something usable (probably FAT32 so I can share it with my other computers) and then transfer it back. Unless there's some kind of magic that reformats a drive without erasing the data on it


    P.S. The previous uhcg flag solution did not solve the problem.
    Last edited by Bart Smastard; 19th January 2010 at 10:35 PM.

  5. #5

    Join Date
    Apr 2009
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    80

    Default

    OK, yes, NTFS isn't natively read-write on Mac OS X.

    MacFUSE is slow at best, and you need a tool like this one to read-write NTFS:

    NTFS-3G for Mac OS X

    In the long run you are going to be better off following your plan - format as FAT32 or HFS+ if you are going to use it on a regular basis on the Mac.

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