Restoring Shared Folders Fails => Fixed in SVN

[vbox888]

See vbox log file HGCM.cpp and SSM.cpp VERR_INVALID_PARAMETER Vbox session is logged off

By deleting shared folders, can use vbox again because this code with the bug is not run.

[vbox888]

vbox log file

[sunlover]

The error from the VBox.log.2 file can happen if the shared folder description exists in the saved state but does not exist in the VM config. This should not happen.

Could you please tell us how to reproduce the problem?

Did you edit the VM config file?

[vbox888]

VM config not edited. Win7 host, Ubuntu 13.10 guest, vbox 4.3.4 guest additions run vbox as admin

My guess is that nothing is written to VM config file when a shared folder is added.

What about VBox.log.2 error INVALID_PARAMETER ?

[sunlover]

So how to reproduce the problem? Please describe exact steps.

That is for example:

• create a Ubuntu VM, install guest additions;
• configure a shared folder (how exactly the folder was configured);
• do something;
• save the VM state;
• do something;
• start the VM again and get the error.

We have to reproduce the problem here to be able to help you.

[vbox888]

Login to Ubuntu user account
mkdir mnt
popup at bottom of screen
devices > shared folders > transient folders > add folder
select folder Documents on C: drive
sudo mount -t vboxsf Documents mnt
sudo cp mnt/da0114.tgz . (copy a file)
sudo umount mnt
popup > close VM > save VM state
start VM again and get the error

[sunlover]

Thanks. Reproduced it. The problem happened when the VM had transient shared folders and was saved/restored in fullscreen mode.

The fix will be available in the next VBox release.

[sunlover]

Please try this build with the fix:

https://www.virtualbox.org/download/testcase/VirtualBox-4.3.7-91496-Win.exe

[Frank Mehnert]

Fix is part of VBox 4.3.8.

[busybox]

Log file from busybox

[busybox]

XML VM file from busybox

[busybox]

This problem appears to be back as of VB v4.3.10 (with guest additions.) I'm running a Ubuntu 12.04 guest on Windows 7 Pro, both 64-bit. I did a 'save' of my VM and rebooted Windows; now I'm getting this error. Usually I do a full shutdown, but this time I was in a hurry ... :-( My VM XML and log files are attached.

Note that unlike previous instances of this issue, my shared folders do not appear to be missing from my XML file.

Hopefully someone can suggest a workaround to get my VM working again ASAP. There were no dirty files in the shared folders, so perhaps I can just remove the shares, launch, and re-add them?

Thanks in advance for the help,

• Busybox

[sunlover]

Thanks for the report. But please open a new ticket for the new problem.

The original problem has been fixed and there is not need to mix different issues in one ticket.

Thanks.