How to make a device file from a dump?

[satishc]

I have a file system dump, image.fat, on my machine. I can work fine on it using my program. I want to mount it in a directory. I added an entry in /etc/fstab for this dump. But, when I try to mount it (eg: mount /mnt/dos3) it complains that image.fat is not a device. What should I do if I want to mount it?

[Cabhan]

You will first need to enable loopback support in your kernel:

Location:                                                                                                                                           
       -> Device Drivers                                                                                                                                 
         -> Block devices

If you look at the help for this option, it says you need a utility called losetup available in the util-linux package. If you can't find a version for your distro, the FTP is at:

ftp://ftp.kernel.org/pub/linux/utils/util-linux/

[satishc]

Thank you.

I used mount -o loop image.fat /mnt/new-fat to mount the fille system. How can dump this file, image.fat, onto a device?