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OS X :: Don't Have Permissions To Access Macintosh HD

My MacBook has had song big problems, and all I can get it to do is boot up with the Mac OS X install disk, or the DVD I put ubuntu on earlier. Otherwise I get the grey screen with a folder and question mark flashing on the screen. I am unable to reinstall OS X because of the error, so we (I and a guy on this site) have worked out I need to backup my files using ubuntu, format the computer and then reinstall the OS.

I don't have an external hard drive, but I found ubuntu allows me to use my iPhone in the same way. I have backed up most of my files now, but I cannot access the main folders;
Desktop, Documents, Downloads, Library, Movies, Music or Pictures and I get the following message:
"The Folder contents could not be displayed.

You do not have the permissions necessary to view the contents of "_____".

Another problem is to put these files back onto my newly formatted MacBook, I will have to access my iPhone using ubuntu, and I can't put items onto the Macintosh HD because I get the message; "Error while copying to '(name)'.

View 1 Replies (Posted: Aug 31, 2010)

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total 12
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But when I use the "chmod 755 Macintosh HD/" command in the Volumes Directory I get "chmod: Macintosh HD/: No such file or directory. Are their 3 spaces in that command? Or am I missing something else?

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(1) I am not entirely comfortable that the clone is completely reliable at this moment. My last cloning operation last night (before this corrupted permissions problem occurred) did not complete itself, leaving the cloned volume in an unknown, or unstable, state.
(2) I would like to use this problem as an opportunity to grow and learn more about the Terminal and UNIX commands.

I have read the relevant sections in David Pogue's missing manual on Mac OS X Leopard, so I am familiar (in theory) with the concepts he explained regarding ownership, file permissions, the root, Terminal, the CHMOD command, and the SUDO command. It's just that, considering the awesome power of the SuperUser Do command, I'm not all that confident yet that I could write the command(s) that could affect the state of my entire computer hard drive. So, I'm asking for guidance from a UNIX guru to guide my hand this first time out. I know about the idea of safe booting up as a single user, but since I do have my laptop computer mounted on the desktop of my iMac as a Firewire volume, I would prefer to use Terminal on the iMac to fix the permissions on that mounted volume, called "MacBook Pro".

PowerMac G4; iMac G5; MacBook Pro.
Mac OS X (10.5.7)
Running Leopard, Tiger, Panther. LAN. Cloned LaCie FireWire drives as backups.

Posted: Aug 21, 2009

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OS X Leopard :: Cannot Access Backups Due To Permissions
I have a number of time machine backups since months but to some reason when I click the 'documents' folder, there is a one-way sign on it and I get a message that tells me I 'don't have sufficient access privileges'. If I do cmd-I, the permissions are 'unknown - read and write, everyone - no access'. I can't clcik the lock or change that. Is there anyway to get into that backup?

MacBook Pro (2.4Ghz), iMac G4, iPhone 3GS
Mac OS X (10.6.1)

Posted: Dec 16, 2009

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Aperture :: Cannot Access Library - File Permissions
When I was using Aperture for the first time, I used the Sample Library to learn some things about Apertures functions. I had to restart the computer because of major lag, but after that re-logging I can't open Aperture at all. "Aperture cannot access this library To use this library, make sure its file permissions are set correctly." How do I get it to work again? I've tried to rebuild the library. When I try to use the "repair permissions"-option, I just get the same message. The same happens when I try to repair the database. What should I do?

Macbook Pro
Mac OS X (10.6.4)

Posted: Jun 28, 2010

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