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  1. #1
    Join Date
    Feb 2017
    Location
    usa
    Posts
    3

    Mac formatted disks

    Hi, I was thinking of posting on the Apple side, but I guess the answer might be a little less condescending here.

    I have hard time writing to every and any USB disk created on a Mac (regardless of OSX version). I change permissions to 777 in Finder, and have no problems reading and copying the files. However, writing to these disks from Fedora 25 is impossible, although Fedora shows that permissions are set to 777.

    What might be the remedy?

    Jack

  2. #2
    Join Date
    Oct 2011
    Posts
    1,675

    Re: Mac formatted disks

    What filesystem are you trying to access? Maybe there is a lack of support for writing but you can still read...

  3. #3
    Join Date
    Feb 2017
    Location
    usa
    Posts
    3

    Re: Mac formatted disks

    I can read alright, but I should be able to write, too!

    It's the journaledHFS+

  4. #4
    Join Date
    Jul 2005
    Location
    RainCity
    Posts
    1,884

    Re: Mac formatted disks

    I'm not sure what you mean by "USB disk". USB keys? Or external drives? USB keys always seem to mount read-only, I try not to use them these days. Who owns the thing? CD into the thing and post the output of
    Code:
    ls -lh
    I've also had problems mounting drives on computers with different userids 501, 1001 stumped me for a while.

  5. #5
    Join Date
    May 2010
    Posts
    1,058

    Re: Mac formatted disks

    This is on GNOME Shell with an automounted HFS+ volume? If so, I think it's a very old bug. I filed this bug report over a year ago, no response.

    https://bugzilla.gnome.org/show_bug.cgi?id=751067

  6. #6
    Join Date
    May 2010
    Posts
    1,058

    Re: Mac formatted disks

    Might be udisks bug actually, so I filed this just now:
    https://github.com/storaged-project/udisks/issues/211

  7. #7
    Join Date
    Jan 2015
    Location
    Al Ain, UAE
    Posts
    748

    Re: Mac formatted disks

    Can you make a directory?

    If you can make a directory on the disk (as root), then you can set the permissions on that directory to your user.
    --
    Have fun!
    http://www.aeronetworks.ca

  8. #8
    Join Date
    May 2010
    Posts
    1,058

    Re: Mac formatted disks

    Quote Originally Posted by flyingdutchman
    Can you make a directory?

    If you can make a directory on the disk (as root), then you can set the permissions on that directory to your user.
    Yes it's possible as a work around. But maybe better is to recursively change owner on the mount point itself, which then changes ownership for all files on the stick. The problem with this bug is not just that I can't write to macOS created hfs+ sticks, I can't read documents already on them (from macOS) since the permissions are simply wrong.

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