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Minimum information needed for assistance.

PostPosted: 14. Mar 2012, 16:13
by Perryg
These are the minimal requirements needed to be able to help you find your problem/issue.

  • The version of VirtualBox you are using, and whether you have installed the Guest Additions (in the guest).
  • Host & Guest make and version including 32 or 64 bit, and the amount of memory available to both.
  • VM log file (as an attachment) See your VirtualBox users guide for how to locate this if using CLI or right click the guest in the VirtualBox main manager and select show log. Then choose save.
    *Note: Windows as host users with version newer than 4.3.12 need to post the VBoxStartup.log or VBoxHardening.log



Some simple commands to show the information needed if asked to provide them.
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VBoxManage list [--long|-l] vms|runningvms|ostypes|hostdvds|hostfloppies|
                            bridgedifs|hostonlyifs|dhcpservers|hostinfo|
                            hostcpuids|hddbackends|hdds|dvds|floppies|
                            usbhost|usbfilters|systemproperties|extpacks

Example: VBoxManage list extpacks


This will generate the guests settings if you are asked to provide them. If the guests name contains spaces wrap them with " " (quotes) See Example2
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VBoxManage showvminfo       <uuid>|<name> [--details]
                            [--machinereadable]

Example1: VBoxManage showvminfo Win-XP --details
Example2: VBoxManage showvminfo "Win XP" --details


Note: On Windows hosts you need to be in the folder that has VBoxManage.exe for it to work.

Re: Minimum information needed for assistance.

PostPosted: 10. Nov 2012, 12:47
by mpack
When posting a guest log file, please make sure to post it as an attachment, don't just paste text. Ideally the attachment should be .ZIPped, that way you will never encounter the attachment size limit.

Re: Minimum information needed for assistance.

PostPosted: 13. Feb 2013, 20:14
by Perryg
More useful information for Linux users (Host or Guest)

Most of the time you can see what went wrong by reading the VirtualBox install logs.

For the host side look at /var/log/vbox-install.log and /var/log/Xorg.0.log
Same concept for the Linux guest except the logs are called vboxadd-install.log and vboxadd-install-x11.log

Re: Minimum information needed for assistance.

PostPosted: 10. Nov 2013, 13:42
by mpack
Yes, we know that the error dialog tells you to submit a screenshot, but you should only do it if the image contains useful information (e.g. if the screen was blank, just say so and skip the image). Also, not everybody can read all image formats, so if you do post an image please use a widely recognized (free) format such as JPEG or PNG.