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John Threepwood
Asked: 2013-04-29 03:11:13 +0800 CST

VirtualBox shared folder is accessible but not workable

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On my host system (Windows 8 Pro 64 Bit), I installed VirtualBox (4.2.12) and installed Ubuntu 12.04 32 Bit as guest system. I also installed the VirtualBox guest utilities to create shared folders.

Now, after creating a shared folder, I added my user id to the group vboxsf, which is the owner of the shared folder with

sudo usermod -a -G vboxsf <my-user-id>

After a re-login to the Ubuntu system, I can access the shared folder and create a text file in it. But when using a text editor like gedit or Geany, I encounter a strange problem. When I try to save the file, the original file will be removed from the disk and gedit tells me

Could not save the file /media/sf_shared_folder/test.txt and

Unexpected error: Error renaming temporary file: Text file busy

Why there are conflicts when I am already in the group? And how to solve them?

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virtualbox

3 Answers

  1. I experienced the same issue. My setup: VirtualBox 4.2.12 with Ubuntu 13.04 guest running on W7SP1 host, mounted Windows folder with fstab like this

    dev /home/dregad/dev    vboxsf  auto,rw,uid=dregad,gid=dregad,umask=0022,dmode=0755,fmode=0644  0   0

    I'm using Geany. Saving the file fails with similar symptoms as described in the question above for gedit (which fails too). Error message as follows:

    Error saving file.
Error renaming temporary file: Text file busy
The file on disk may now be truncated!

    My solution for Geany:

    I don't use it much, so not sure if gedit provides a similar trick, but FWIW, you may want to have a look at this stackexchange question as it offers a workaround.

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  2. I think the problem is fundamentally with glib and the way it saves to a temporary file, then renames without closing the file. The bug has been recorded as: https://bugzilla.gnome.org/show_bug.cgi?id=656225

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  3. This error occurs when you edit the file using the Texteditor (Gedit) which is default text editor we have with ubuntu.

    I have used the Sublime text editor and error won't happen. No need of additional headaches of manual or auto mount changes.

    Please refer : https://www.virtualbox.org/ticket/2553 for more detail.

    It saved lot of time of mine !!!

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