vidma is a utility for manipulating virtual disk images. It can show basic information about the image or resize it. Resizing is done by in-place modification of a file holding the image or by creating modified copy of such file.

• VDI - Virtual Disk Image
  Format introduced by VirtualBox and mostly used by VirtualBox. It has a few variants, but only two types, fixed and dynamic, are handled by vidma.

• little-endian machine, e.g. x86, x86-64
• Windows or POSIX OS, e.g. BSD, Linux, Mac OS X

• VirtualBox Forum topic
  (contains example of usage)

If you find any bug, then please create a new issue in the project's GitHub page and describe the problem there, unless someone already did it before you.

Remember to provide following information:

• What system do you have?
  (uname -a, lsb_release -drc)
• What compiler do you use? (if you have built vidma manually)
  (cc -v)
• What vidma version are you using?
  (first line of vidma output)
• What have you done?
  (run history and check the commands used to compile and run vidma)
• If problem regards corrupted image, then paste information about the original image and the one after failed modification.
  (vidma original_image_file, vidma modified_image_file)

Stages:

• alpha (works for me?)
  • 0.0.x
  • 0.1.x
  • 0.2.x
• beta (works for you?)
  • 0.3.x
  • 0.4.x
• release candidate (works for everyone?)
  • 0.5.x
• ready (just works!)

Don't waste your time until vidma will be close to beta stage. I mean it.
I am aware of many shortcomings (some are listed in issues w/ todo label) and they will be eventually addressed (in no particular order).

I won't accept any pull request before releasing version 0.2.0. ;-)

Program is in ALPHA stage, therefore may be HARMFUL and UNSAFE!
You have been warned! USE AT YOUR OWN RISK! NO WARRANTY!

To reduce possible damages of in-place operation ALWAYS BACKUP YOUR IMAGE or just do not use them at all.