VirtualBox

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Ticket Resolution Summary Owner Reporter
#927 fixed Fails to bring host networking down on startup error Frans Pop
Description

I had been using a "host pipe" serial port, which I create using an external command (socat) before booting the VM. Unfortunately, the command exits and the socket file is deleted when I shut down a VM.

If the socket file is missing when the VM is booted, this results in the following error:

Serial device 0 cannot attach to char driver
.
VBox status code: -102 (VERR_FILE_NOT_FOUND).

Result Code: 0x80004005
Component: Console
Interface: IConsole {1dea5c4b-0753-4193-b909-22330f64ec45}

And the VM fails to start. I disabled the serial port and then tried to start the VM again, but then got the following rather cryptic error:

Unknown error creating VM (VERR_HOSTIF_INIT_FAILED).
VBox status code: -3100 (VERR_HOSTIF_INIT_FAILED).

Result Code: 0x80004005
Component: Console
Interface: IConsole {1dea5c4b-0753-4193-b909-22330f64ec45}

Only after a lot of frustration did I discover that this was caused by the fact that my "host interface" network adapter had not been brought down after the first attempt to start the VM.

Manually running the script I use to bring the vbox0 interface down solved the problem, but that was only after I had already deleted the VM and its snapshots and created a new one :-(

Please:

  • make the error message a bit less cryptic, for example by mentioning the name of the "Setup application" that has been configured to set up the host interface
  • ensure that the host interface is brought down automatically (by running the "Terminate application") when there are unrelated problems starting a VM after the host interface has already been brought up

The first error message could also be improved by explicitly mentioning which file could not be found.

#928 obsolete Mounting share directory on Linux host result in Protocol error if default share name is used Paul Siu
Description

Host is Ubuntu 7.10. Guest is Linux Mint 4.0

I created a new shared directory using the GUI in a machine's setting. The GUI will prompt me to select a host directory for the shared directory. When I select the share directory, a share name is automatically generated. So if I select the directory "/home/paulsiu/vshare", the share name "vshare" is created.

If I attempt to mount the vshare using the following command in the Linux Guest I get the following error:

sudo mount -t vboxsf vshare /home/paulsiu/share /sbin/mount.vboxsf: mounting failed with the error: Protocol error

The syslog will have the error:

Oct 8 18:27:09 wxbuilder kernel: vboxvfs: sf_glob_alloc: vboxCallMapFolder failed rc=-102 Oct 8 18:27:09 wxbuilder kernel: sf_read_super_aux err=-71

Now suppose I go back into the GUI and change the "vshare" to "vshare2". The following mount command will work:

sudo mount -t vboxsf vshare2 /home/paulsiu/share

For some reason, whatever Virtualbox select as the default share name will always fail to mount. If you pick something else, it will work.

#929 fixed Upgrading Win XP guest additions doesn't upgrade VBoxMRXNP.dll Rune Kock
Description

I used to have VBox 1.4, and then upgraded to 1.5.2. I started my Win XP guest, and asked it to install the guest additions again. Seemed to go fine, but shared folders didn't work. It turns out that the VBoxMRXNP.dll file wasn't upgraded.

I attach an install log from installing the new guest additions.

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