5

I am using an NTFS parition for storing data I like to access both from Ubuntu and Windows 7. On my Ubuntu HOME partition, I like to link the folder Assets in order to access it from an application running on Ubuntu. Therefore, I created the following link.

ln -s /media/data/Assets/ ~/bin/SomeJavaApp/data/assets

When I try to access the data within the application, the following error message appears.

Error message: Could not acquire data access

The NTFS parition is attached via auto mount in /etc/fstab. Here is the relevant configuration setting:

# Data partition auto mount.
UUID=159EBA47019D5D33 /media/data ntfs defaults,umask=007,uid=1000,gid=1000 0 0

My HOME partition is formatted with ext4. The application I use is written in Java. Is there something, I can do about this besides copying the files to the HOME partition?

I also get a Java error message when I start the application from the console.

java.lang.NullPointerException: Could not acquire data access

@Gilles:
The output of ls -ld /media/data /media/data/Assets ~/bin/SomeJavaApp/data/assets is:

lrwxrwxrwx 1 jjd jjd    92 Aug  9 11:01 /home/jjd/bin/SomeJavaApp/data/assets -> /media/data/Assets/
drwxrwx--- 1 jjd jjd 28672 Aug  6 14:49 /media/data
drwxrwx--- 1 jjd jjd  4096 Aug  8 14:32 /media/data/Assets/

The path I choose in the application is: /home/jjd/bin/SomeJavaApp/data/assets.

Improve this question
4
  • 1
    Is your partition mounted rw? and what are the file permissions on the folder assets?. Also, you might have a problem with case-sensitivity here. The error has a capital 'A' while your file path has a small 'a' Commented Aug 8, 2012 at 13:12
  • According to this website the defaults setting in my fstab means that I mount the partition as read-write. Regarding the case-sensitivity: I only access the files within the folder and therefore do not expect a problem there. How about the umask, should it be 000? Commented Aug 8, 2012 at 18:33
  • 2
    What path do you provide to the application? Please copy-paste. What is the output of ls -ld /media/data /media/data/Assets ~/bin/myapp/data/assets? Commented Aug 8, 2012 at 22:59
  • The name or the resource that appears at the end of the error messages Could not acquire data access ... is merely the alias I enter in the application. Therefore, it is irrelevant to the problem. I removed the string. Commented Aug 9, 2012 at 9:24

0

Reset to default

You must log in to answer this question.

Start asking to get answers

Find the answer to your question by asking.

Ask question

Explore related questions

See similar questions with these tags.