Can't show/view any VMs
Can't show/view any VMs
Strange issue here.
Windows 10 64 bit host
Vbox Version 7.0.4 r154605 (Qt5.15.2)
Intel(R) Core(TM) i7-6700
32gb ram
I have several guests windows, linux and bsd, 3 of them run headless, using the official service configuration.
Most of the guests have the latest integration pack and I've installed the latest extensions.
They run great as do all other guests, however....
I can't actually show/view them on the host.
When I right click a headless VM in VirtualBox Manager or start a new one and choose "Show", nothing happens, no window opens.
When I click a running VM in VirtualBox Manager, on General details, I can see a live preview of the running guest.
So the guest is running AND is relaying video to VBOX, it just can't seem to open the VM in a window.
This just happened recently when I upgraded from an older version of v6 to the current V7 version of VBOX.
EDIT: It looks like I picked a very early date to jump to v7 as it's just out of beta. Hoping this issue is known and patched soon. The VMs are running fine now, so I can probably wait for the next patch instead of rolling back to v6.
Windows 10 64 bit host
Vbox Version 7.0.4 r154605 (Qt5.15.2)
Intel(R) Core(TM) i7-6700
32gb ram
I have several guests windows, linux and bsd, 3 of them run headless, using the official service configuration.
Most of the guests have the latest integration pack and I've installed the latest extensions.
They run great as do all other guests, however....
I can't actually show/view them on the host.
When I right click a headless VM in VirtualBox Manager or start a new one and choose "Show", nothing happens, no window opens.
When I click a running VM in VirtualBox Manager, on General details, I can see a live preview of the running guest.
So the guest is running AND is relaying video to VBOX, it just can't seem to open the VM in a window.
This just happened recently when I upgraded from an older version of v6 to the current V7 version of VBOX.
EDIT: It looks like I picked a very early date to jump to v7 as it's just out of beta. Hoping this issue is known and patched soon. The VMs are running fine now, so I can probably wait for the next patch instead of rolling back to v6.
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- Site Moderator
- Posts: 20945
- Joined: 30. Dec 2009, 20:14
- Primary OS: MS Windows 10
- VBox Version: PUEL
- Guest OSses: Windows, Linux
Re: Can't show/view any VMs
Thanks for letting us know how your situation turned out. Personally, I wasn't sure where to start troubleshooting this one, except to suggest trying 6.1 and see if proper operation is restored. Yes, 7.0 still has bugs to find, it'll get stable soon.
Re: Can't show/view any VMs
Thanks for checking in.
Should I submit a bug report?
Or is posting this give it the same visibility?
Appreciate your and everyone's work on this hypervisor.
It's suprisingly awesome and flexible.
Should I submit a bug report?
Or is posting this give it the same visibility?
Appreciate your and everyone's work on this hypervisor.
It's suprisingly awesome and flexible.
-
- Site Moderator
- Posts: 20945
- Joined: 30. Dec 2009, 20:14
- Primary OS: MS Windows 10
- VBox Version: PUEL
- Guest OSses: Windows, Linux
Re: Can't show/view any VMs
You can put this on the Bugtracker. But let's see if some forum guru knows how to check this out first.
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- Volunteer
- Posts: 5677
- Joined: 14. Feb 2019, 03:06
- Primary OS: Mac OS X other
- VBox Version: PUEL
- Guest OSses: Linux, Windows 10, ...
- Location: Germany
Re: Can't show/view any VMs
Please reproduce the issue with a Windows guest (*) and provide a zip file with the VBoxHardening.log, VBox.log and VBoxUI.log files.
(*) With a Linux guest on a Windows/Linux host, starting the VM headless and showing it later never worked for me with VirtualBox 6.1.x (for the few x that I tried from time to time). The behavior was somewhat different than what you described, me getting a blank preview and a blank VM window both with the 800x600 resolution.
(*) With a Linux guest on a Windows/Linux host, starting the VM headless and showing it later never worked for me with VirtualBox 6.1.x (for the few x that I tried from time to time). The behavior was somewhat different than what you described, me getting a blank preview and a blank VM window both with the 800x600 resolution.
Re: Can't show/view any VMs
Sorry I can't find any log called VBoxUI.log in the VM folder.
Just Vbox.log and VBoxHardening.log
Is there a secure way I can send these to you?
Lot's of private data in these logs.
Appreciate the help.
Regarding 6.1, I could always open a window with "Show", regardless of the guest OS.
Just Vbox.log and VBoxHardening.log
Is there a secure way I can send these to you?
Lot's of private data in these logs.
Appreciate the help.
Regarding 6.1, I could always open a window with "Show", regardless of the guest OS.
-
- Site Moderator
- Posts: 20945
- Joined: 30. Dec 2009, 20:14
- Primary OS: MS Windows 10
- VBox Version: PUEL
- Guest OSses: Windows, Linux
Re: Can't show/view any VMs
Only the host's IP address might be in there, and would only be hackable if it wasn't a private IP address handed out and firewalled by a router. The rest is unhackable: it's all virtual. Even the user account name is unhackable: Where in the 4 billion IPv4 addresses and the galaxy's worth of IPv6s would we try it?VMgroot wrote:Lot's of private data in these logs.
If you feel the need to obfuscate something, please tell us what you obfuscated, so we know what data to not trust.
Please zip the logs requested and post them via the forum's Upload Attachment tab.
Re: Can't show/view any VMs
Here you are
I removed 3 lines that showed the windows username
00:00:04.511339 GlobalInitScript <string> =
00:00:04.511340 HistoryFile <string>
00:00:04.511341 Path
I removed 3 lines that showed the windows username
00:00:04.511339 GlobalInitScript <string> =
00:00:04.511340 HistoryFile <string>
00:00:04.511341 Path
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- W7vm.7z
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- Volunteer
- Posts: 5677
- Joined: 14. Feb 2019, 03:06
- Primary OS: Mac OS X other
- VBox Version: PUEL
- Guest OSses: Linux, Windows 10, ...
- Location: Germany
Re: Can't show/view any VMs
The VBoxUI.log file is only created in separate/detachable mode, which can also be reached when starting in headless mode and using the Show button. The provided VBox.log file shows a start in normal/default mode.VMgroot wrote:Sorry I can't find any log called VBoxUI.log in the VM folder.
The VirtualBox Guest Additions (GA) 6.1.26 are installed in the guest OS. This may or may not play a role here. When trying VirtualBox 7.0.4, I'd suggest to uninstall the old GA before installing VirtualBox 7.0.4.
Other than that, the VBox.log file shows an VERR_HGCM_SERVICE_NOT_FOUND error, which indicates another problem.
Re: Can't show/view any VMs
Thanks for the input fth0.
I have a workaround:
I had to move the VMs to a new drive in preparation for Proxmox.
Once they were moved, they would display again on the host.
The way I moved them (if it matters):
1) Shut down VMs
2) Remove VM (but don't delete files)
3) Close VBOX Interface.
4) Copy virtual hdd (vhd) and associated .vbox and config folder (with logs, snapshots, nvram etc) to new drive.
5) Add copied virtual hdd with Virtual Media Manager
6) Open and edit copied .vbox config file to ensure virtual media path and UUID are correct. On one the UUID had changed, on another path had changed.
7) Double click .vbox file and MV is imported in place. Everything working!!
Now to add guest additions.
One big lesson learned.
Keep your VM HDD in the same folder as the .vbox and config files. This way the path entry is relative and will work even when moved to another location.
I still don't know why VBOX seems to change the UUID of an imported virtual HDD sometimes. Other time it leaves it as is.
So all is working, thanks for the help and hopefully this will help someone!
Edit: It seems after rebooting the server and using the VBOX Autostart service, I can no longer connect to the VMs in a Guest window on the host.
Something to do with background services and how the VM was started.
If started with autostart, guest window is not working.
I have a workaround:
I had to move the VMs to a new drive in preparation for Proxmox.
Once they were moved, they would display again on the host.
The way I moved them (if it matters):
1) Shut down VMs
2) Remove VM (but don't delete files)
3) Close VBOX Interface.
4) Copy virtual hdd (vhd) and associated .vbox and config folder (with logs, snapshots, nvram etc) to new drive.
5) Add copied virtual hdd with Virtual Media Manager
6) Open and edit copied .vbox config file to ensure virtual media path and UUID are correct. On one the UUID had changed, on another path had changed.
7) Double click .vbox file and MV is imported in place. Everything working!!
Now to add guest additions.
One big lesson learned.
Keep your VM HDD in the same folder as the .vbox and config files. This way the path entry is relative and will work even when moved to another location.
I still don't know why VBOX seems to change the UUID of an imported virtual HDD sometimes. Other time it leaves it as is.
So all is working, thanks for the help and hopefully this will help someone!
Edit: It seems after rebooting the server and using the VBOX Autostart service, I can no longer connect to the VMs in a Guest window on the host.
Something to do with background services and how the VM was started.
If started with autostart, guest window is not working.
Re: Can't show/view any VMs
I had the same problem. Virtualbox System Service was set to manual and not running. Changed to automatic and started it. VMs now showing. Hope this helps.
Re: Can't show/view any VMs
Thanks, I'll try that.
I moved this system over to Proxmox, but still have other VBOX machines running.
I moved this system over to Proxmox, but still have other VBOX machines running.