VM stalls and doesn't boot

[selewi3]

I was using in training class, and was told I should be able to boot the environment in VirtualBox. I was able to make a copy of a VM(vmdk) I was using in class, and for some reason I'm not able to get it to boot up. It worked fine in the class. I looked at the log files, and I don't seen any obvious errors. Any help is greatly appreciated. I can provide the log files if needed.

Version of VirtualBox installed (5.0)
Type and version of the Host Operating System (Windows 7 SP1)
Type and version of the Guest OS (Linux/Ubuntu 32-bit)

Problem:
What are you trying to accomplish: Boot the given vmdk
What did you expect and what was the result?: I expected a linux environment

Attempted Resolutions:
Have you searched the User Manual?: I searched the manual and followed the steps provided in creating a VM
What have you attempted and what was the result of each attempt? : The result would be that the environment would just hang.

Log files: If you are reporting a problem on the bug tracker or in the forums (please do not post log files to a mailing list unless you are asked to!) you should provide any relevant log files.

If you were able to start a virtual machine at all, please provide the most relevant log file from a machine which you ran, as it contains lots of useful information!
If you had an installation problem, please provide any installation log files (different systems have them in different places).
If your problem is about graphics in a Linux or Solaris guest, please include a relevant X server log. )

[Perryg]

Post the guests log file ( as an attachment ) here. Compress if it is too large to post otherwise.

[selewi3]

Done & done. Here's the log file from "Show Log" option in the VM manager. Please let me know if anything else is needed.
Thanks for attempting to assist.

[loukingjr]

00:00:03.567088 Host RAM: 5887MB total, 2124MB available
00:00:04.707236 RamSize <integer> = 0x00000000d8100000 (3 624 927 232, 3 GB)

The first problem is you have more memory assigned to the guest than you have available. Try setting the RAM to 1024MB.

[selewi3]

Thanks Lou...that appeared to work.

As you can probably tell, I'm new to the vm world. I have a couple of other issues I'm trying to work through. I'm not able to change my resolution from 640x480 within the guest machine settings. It just has that one option. Is there a way to change this?

[Perryg]

You need to install the guest additions ( in the guest )
Then use the mouse click and drag or the hot key ( host+F ) to go in and out of full screen.

[selewi3]

Thanks for the guidance. That resolved my issue.