Permission problem


I have a permission problem; I can’t access my internal harddrive partitions. I have 10 linux partitions; all data, images, videos are stored on those partitions.

Normally, in other distros, I click the partition in nautilus, a box pops up, enter the password and I am done. Calculate asks no passwd, just open the files with lock on them.

My external harddrive has no permission problem. It works properly.

I need help how to solve this permission issue.