Backup Volume Read Only error 99% solution

After about 2 months of the "Back Up Volume Read Only - select different volume..." issue, I found a 99% solution - or perhaps a fluke (I'm a mac newbie).
My computer would back up about 1/2 of the 20gig's of files before failing. After removing the apostrophe, erasing, etc. I went to options and chose most of my files as "do not back up". What do you know, it finally worked.
Then I went back and added the rest of the files back to the backup -- didn't work again.
Long story short, after a few, fun filled hours, I triangulated down to one file in Documents (a circus pony notebook file) that will cause my backup to fail. If that file is in there, no backup. Take it out, no problem. btw, I have other notebook files that backup fine.
Anyone have any suggestions besides leaving that file out forever?

After about 2 months of the "Back Up Volume Read Only - select different volume..." issue, I found a 99% solution - or perhaps a fluke (I'm a mac newbie).
My computer would back up about 1/2 of the 20gig's of files before failing. After removing the apostrophe, erasing, etc. I went to options and chose most of my files as "do not back up". What do you know, it finally worked.
Then I went back and added the rest of the files back to the backup -- didn't work again.
Long story short, after a few, fun filled hours, I triangulated down to one file in Documents (a circus pony notebook file) that will cause my backup to fail. If that file is in there, no backup. Take it out, no problem. btw, I have other notebook files that backup fine.
Anyone have any suggestions besides leaving that file out forever?

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    I have been running time machine on a MacBookPro MacOS x 10.5.8 for 2 years.
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    mysteryrare wrote:
    I upgraded to Leopard by going to the Apple site and purchasing the upgrade from there. It was a download.
    I never heard of that. I've always been told that OSX isn't available that way. (It must have been a massive download!)
    I will try Apple support but I am in Australia and it can take a while for things to get here.
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    That could have been part of the problem with the first one, but it's doubtful.
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    If the zero-out succeeds, it doesn't necessarily mean the disk is good, but since it's new, it probably is. TM will, of course, do a new, full backup, which will also take a while.
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    http://forums.adobe.com/message/4117896
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    Hello,
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    The problem is, this has happened with three separate backup drives. They are all G-Tech 2TB 4th Generation G-Drive external hard drives. So I'm wondering if there may be a Mac OS software problem, or perhaps a hardware problem.
    There's a lot to this story, so if you're game, read on.
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    With the replacement drive, I was getting the same "read-only" message. So I tried a few times erasing/reformatting/repartitioning this drive. No luck.
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    So it seems like maybe it's a compatibility issue the G-Tech Drives? I'd be surprised...but I'm stumped. Anyone have any ideas?
    Thanks.

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    What to do if Time Machine reports you don't have permission
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    Message was edited by: Tom Torrillo (added log info)

    See if this helps:
    What to do if Time Machine reports you don't have permission
    This was posted in the Apple Discussions by V.K. I have only modified it slightly to be more generic.
    The problem seems to be that 10.5.6 changes permissions on a file so that even the root user doesn't have write peivileges. I have no idea why they did this. The workaround suggested in [an]other post will probably work, too, but i did something less drastic. Instead of deleting the file I changed permissions on it, and it worked just fine. An added benefit is that the permission change seems to stick, so you don't have to delete the file every time you change a drive.
    [Open the Terminal application in your Utilities folder. At the prompt [enter] the following command:
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    The name of the file .xxxxxxxxxxxx is based on the MAC address of your computer and will be different for every computer. Put the name of the TM drive in the above and keep the quotes.
    You'll have to enter your admin password (which you won't see) which is normal.
    This was edited by Kappy just for cleanup.
    Enable Finder to Show Invisible Files and Folders
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    defaults write com.apple.finder AppleShowAllFiles TRUE
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  • Time Machine - External Hard Drive Read only error

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    This was posted in the Apple Discussions by V.K. I have only modified it slightly to be more generic.
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    defaults write com.apple.finder AppleShowAllFiles FALSE
    Alternatively you can use one of the numerous third-party utilities such as TinkerTool or ShowHideInvisibleFiles - VersionTracker or MacUpdate.
    Also, see User Tips for Time Machine for help with TM problems. Also you can select Mac Help from the Finder's Help menu and search for "time machine" to locate articles on how to use TM. See also Mac 101- Time Machine.
    Message was edited by: Kappy

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