Could not open /dev/vmmon: No such file or directory

Asked By 20 points N/A Posted on -

Hi all

I try to upgrade my Ubuntu 11.04 (Natty Narwhal) and My VMware Workstation 7.1.3 was working rightly but the upgrade stopped running and kept showing the following error message when I am attempting to compile the modules with its latest Kernel:

“Unable to Build Kernel Module see log file /tmp/vmware-root/setup-7357.log for details.” Here is a screen shot of an error:


I have maintained the error message instruction and also tested the log file setup-7357.log showed by the error message displayed above to get the followings:

================ setup-7357.log Messages===========

May 30 01:31:39.932: app-139993976203040| Trying to find a suitable PBM set for kernel 2.6.38-8-generic.

May 30 01:31:39.933: app-139993976203040| Building module vmmon.

May 30 01:31:39.933: app-139993976203040| Extracting the sources of the vmmon module.

May 30 01:31:39.939: app-139993976203040| Could not extract source for module vmmon!


I have totally fuzzed attempting to fix the on top of error and to find my VMware Workstation 7.1.3 support and using but no luck. I have searched all the forums but got nothing. I did not look forward to find Ubuntu 11.04 has not been discharged for long.

I end up deciding the trouble by upgrading VMware Workstation to 7.1.4 as well as only some Extra commands.

 Here is the complete procedure.

  1. I Download VMware Workstation 7.1.4 from VMware website
  2. Set up VMware Workstation 7.1.4 by performing the following command as a root or by using Sudo:

# ./VMware-Workstation-Full-7.1.4-385536.x86_64.bundle    <== if running as a root

# sudo ./VMware-Workstation-Full-7.1.4-385536.x86_64.bundle <== You will be requested for root password if not using as root and the suggested method.

3. The installer will take away VMware Workstation 7.1.3 as well as substitute it with VMware Workstation 7.1.4.

4. After upgrade VMware Workstation should start usually on Ubuntu 11.04 (Natty Narwhal), while you might get this error message when trying to start your VMs.

Could not open /dev/vmmon: No such file or directory.
Please make sure that the kernel module `vmmon’ is loaded.

You can carry out the underneath commands to repair the error:

$ su –  <== Enter your root password and hit enter.
# service vmware start

After this command you can start your VMware Workstation VMs in general & have the benefit of the new VMware Workstation with Ubuntu.

That’s why I need a complete solution. Please help me.

Thanks a lot.

Best Answer by JohnnyTango
Best Answer
Best Answer
Answered By 0 points N/A #150442

Could not open /dev/vmmon: No such file or directory


If you encountered this error after upgrading your operating system and your virtual machine then maybe there is a problem with your system that caused the procedure to generate errors along the way. Since I think you upgraded both your operating system and your virtual machine, why not try doing it again but in a different sequence.

To do this, you need to restore first your system to its previous state before the upgrade was done. If this is not possible then you need to completely uninstall your virtual machine. After removing it, check your computer for any possible errors. Use a disk utility application to check the system. After this, see if you can still do an upgrade with your operating system. If your operating system is already using the latest updates, you may now install your virtual machine again. Install the latest version of the virtual machine so you wouldn’t have to do an update again.

Answered By 5 points N/A #150443

Could not open /dev/vmmon: No such file or directory


A solution is to apply a patch that I found. I copied it to you here and I attached it to you as a text. Link taken from Try to do this command and I believe that your problem will be solved. If it is not fixed, you should contact with a support Centre.

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