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Hyper-V 2012 R2 - Firmware only showing "File - BootMgrFW.efi" or "No Boot Entries" if new

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This has only just started to showing today

I created a new VM on one of my hosts to test ConfigMgr OSD Deployment, only for it to fail to boot

When I checked the config of the VM I see this: 

On existing VMs on the same host, I only see the Bootmgfw.efi option - no CD Drive or NICs even though they were there a few days ago.

There have been no new updates other than SCEP definitions and no changes to the server

My other Hyper-V host is fine with no issues but worried it'll suddenly start.

OS: Windows Server 2012 R2 Ent with Hyper-V role installed (obviously!) 32 GB RAM
Server has been running around 3 months

Anyone got any ideas?


Regards Craig Wilson


Unable to boot converted VHDX

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Hi,

We have one laptop which we have convereted into VHDX and when we attach VHDX to our Hyper-V 2012 Server we are not able to boot the converted machine and getting following error -

"Boot Failed. EFI SCSCI Device"

Tool used to convert physical machine to virtusl is - Disk2VHD (Microsoft Disk2VHD - https://technet.microsoft.com/en-in/sysinternals/ee656415.aspx)

Error Message

We have selected the Generation 2 option and also unchecked the Enable Secure Boot option but still getting this error message.

Please note that we don't want to boot from ISO we want to boot this VHDX, please help us.

Your reply is highly appreciated.

Regards,

AJ


Arjun V.

Restoring VM from VHD file

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Dear All,

We were running a Hyper V server,but got crashed suddenly but i have the VM folder of the VM which includes the VHD and all other files ,is it possible to restore the VM from the VM folder .

the version of the Hyper V was 2008

Regards

JacK


TechGUy,System Administrator.

Hyper-V VMConnect mouse

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HI,


I have a 2008 R2 Hyper-V Clustered server infrastructure, utilizing 12 Hyper-V servers with three distinct clusters

All the Guest OS are also 2008 R2 and have Integration Services installed.

This live environment has been working for over 2 years with no issues.

Within either Failover Cluster Mgr, Hyper-V mgr on a specific Hyper-V server or via VMM from our VMM mgr server, when I right click a guest OS and select 'connect to virtual machines', a console window opens but when I left click in the window, I get a message stating "Mouse not captured in Remote Desktop session". I am then unable to access the guest OS via the console but can still RDP directly to any of the Guest VM's.

This has previously been working on all Hyper-V servers for 2 years and has now stopped working on them all at the same time.

Reading online posts the resolution appears to be to reboot either or both of the Hyper-V host or guest VM's.

This is not practical in a production environment and I could understand it if a single Hyper-V server was to experience this problem but to see it on 12 at the same time suggests something else is going on.

Would anybody have any advice?

Thanks

Tim

Reboot loop VM Hyper-v!!! urgent help

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Hi guys,


I do really need a hand on this one folk. We are a software developer company and we use Virtual machines on Hyper-v manager as templates to build upon. Unfortunately, we got a cloned VM at some point started to come with this issue of a reboot loop. We found a quick fix by using a <g class="gr_ gr_396 gr-alert gr_spell gr_run_anim ContextualSpelling ins-del multiReplace" data-gr-id="396" id="396">chkdsk</g> command and starting from the last known good config to be able to run the VM again.

But this has become a <g class="gr_ gr_706 gr-alert gr_gramm gr_run_anim Punctuation only-del replaceWithoutSep" data-gr-id="706" id="706">chain,</g> since we have copied many VMs from this VM that has the rebooting issue, and consequently all the other now do have, and sometimes the quick fix do not work anymore.

I was wondering what sort of solutions are available out there the solve this issue once for all. Any help would be great. 


can't connect to hyper v server

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can't connect to hyper v server. below are setting done for both hyper v server and manager. kindly support to resolve this issue.

Hyper v server 2012 r2

*running on Workgroup

*Remote management enabled

*Remote desktop enabled

*Firewall disabled

Hyper v manager

* Running on server 2012

*Member of AD domain 

*firewall disabled

*Hyper v server credential added into cmdkey list.

Hyper-V Host Reachable but some guests are not visible via network

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Hey,

we´ve got a Problem with one of our standalone Hyper-V Hosts.
Problem is that the Hyper-V Host is reachable via network but some guests are not.
All Guests are in the same NIC-Team / HV-Switch.

The Issue occurs first at last friday morning. - Strange that the same issue occurs today - also friday.
If i restart the Host - then it´s all working again.

I´ve cannot see any event logs which contain valid information for the reason - just that dns lookups are not working anymore because the Domaincontroller and DNS ist a VM.

Hyper-V Host is Server 2012 R2 with actual patches - VM´s are also all Server 2012 R2 with actual patches.

Any Suggestions?

BR Dominic
MCSE Server Infrastructure 2012

Windows Server Datacenter as a guest?

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Hi,

If the virtualisation host is licensed with a Datacenter license, then it can have an unlimited number of guests running Windows Server, including the Datacenter edition itself.

My question is, is there a benefit in using Windows Server Datacenter as a guest? I'd rather be more conservative and have Standard for guests, but currently there is a mixture of Editions on the estate, and I'd rather streamline to one, whichever it may be, i.e. if Datacenter has its benefits, then let's go for that, otherwise it's Standard.

Thanks!

... Alex ...


... Alex ...



Hyper-v

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Hi,

I have server installed in my laptop trying to install os in virtual machine but its giving me error. Please help me out.

I am getting this error

Compatibility Report.

The computer started using windows installation media. Remove the installation media and restsrt the computer so that windows starts normally then insert the installation media and restart the upgrade(Do not select ICustom(Advanced) to perform an upgrade. Icustom (advance) installs a new copy of windows and deletes your programs and settings.




How to correlate scsi disks between Hyper-V Parent and VMs using virtual fibre channel (vfc)

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I have a scenario with 6 Hyper-v VMs (Win2k12R2) and all data disks in VMs are over virtual fibre channel (vfc).

Each VM has 20 disks. 4 paths to each mpio device. (80 scsi devices from parent)

From the parent, I would like to be able decipher which scsi disk goes to which VM

I can run on parent: "devcon.exe find scsi\vmlun"

or

get-ciminstance win32_pnpentity and filter out the hyper-v luns

I get back deviceID or PNPDeviceID, but these do not match what is in the VM. (devcon listclass diskdrive)

I was hoping someone can shed some light on how to get the correlation between the two, so I can see if a scsi device is not making it into the parent.

TIA!

Interrupted VM stuck

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I was doing updates on my 2012R2 Hyper-V VM and power dropped. When I booted my host PC back up the VM would start and say Hyper-V Updating your system (x%) and get stuck at 5%. I can't get past this and I have no snapshots/backups of the VM. Is there anyway to recover this VM?

Can't eject DVD ISO from Hyper-V guest machine on Windows 10 Enterprise

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I am building Red Hat 6.8 virtual machines on a Windows 10 Enterprise host. Works fine -except that at the end of the guest installation, when it prompts you to reboot, the VM comes back to the Red Hat splash screen, running off the installation DVD, rather than booting the freshly-installed guest O/S.

No problem: just eject the DVD. Click Media -> DVD Drive -> Eject <name-of-iso>.

And at that point, I get a pop-up box declaring "Failed to remove device 'Microsoft:Hyper-V:VirtualCD/DVD Disk':Access denied (0x80041003). Account does not have sufficient privilege to open attachment 'D:'. Error 'General access denied error'.

If I shut the VM down, then I can either edit its settings to set the drive to 'none' contents, or I can click the Media->DVD->Eject option successfully.

So basically, I cannot eject a DVD from a running VM, and I would like to be able to do so

What privilege is required to do this on a running VM, please? And how may I grant it?

(For the record, I also ran an administrator powershell, and got the same error when I tried to eject the DVD from a running VM with the command Set-VMDvdDrive -VmName <vmname> -ControllerNumber 1 –ControllerLocation 0 –Path $null. But if I powered down the VM, then that command silently returned, indicating success. Which is nice, but again: I would like to be able to eject DVDs from **running** VMs, not just ones which have been shut down.)

Thanks,

HJR


Where to get Windows 2008R2 Standard key as guest VM on 2012 R2 Standard

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I purchased a Dell server with Windows 2012 R2 Standard plus add-on license for two extra VMs, so total of four VMs. Three VMs are used & activated with 2012 R2 permanent virtual servers. But now I had to install 2008R2 Standard temporarily as a test platform, and testing took so long that the trial period expired. I guess that means that I need to activate 2008R2 Standard on the VM. That is not a problem from a license standpoint, since we own the extra license; however, how do I get the 2008 R2 Standard key?

Dell provided downgrade keys with the 2012 R2, but only for 2012, Enterprise 2008 R2 (Physical & Virtual)--but no 2008 R2 Standard key for the VM. How/where do I get this, or is there a standard one? I have found posts regarding automatic VM activation; however, these all seem to be related to 2012 R2 DataCenter, not Standard.

virtual machuine cannot ping its Hyper-V host

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Hi,

I have a Windows Server 2012 R2 Hyper-V cluster of three nodes, each node is configured with below NICs:

1. Management (remote access only)

2. VMs-Connectivity

2. Heartbeat

3. Live Migration

each VM cannot ping or reach the Hyper-V host in which it is placed while it can ping it or reach it if you live migrate it to another host. VMs connectivity to domain and network is fine. The issue is not related to a certain Hyper-V host or VM, I mean if for instance VM01 is hosted on HV01, it cannot ping it nor reach it but if you move it to HV02 then it can ping HV01 ...How can we troubleshoot this? The option to validate the cluster is not possible as we have 74 VMs running on this cluster and all are production VMs.

Note: We have Vlan tagging configured on the team interface for the management NIC and in each VM vNIC configuration.

Also Windows firewall and network discovery on Hyper-V hosts are off

NIC Order Arrangement

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Hello,

I have a lab environment VM running Gen 1 VM running a VyOS Router (Virtual Router). I cannot seem to predict the order the NIC is arranged in my VM.

When the VM was created it only had 1 Virtual NIC, I configured this NIC in VyOS and established connectivity from the other Windows VM that is also attached on the same vSwitch where that NIC is attached.

As I added a new NIC to simulate a secondary LAN, i rebooted the VyOS router. The order in which the NIC was attached on the Virtual Router was moved. I had to delete my last configuration for the NIC and reconfigure the new nic (yes! not the old nic) with the same values i configured on the old NIC.

After the VyOS VM was configured all of its port and confirmed working. I added another Gen 1 VM running VyOS, and this time I added 2 NIC and assigned vSwitch'es to appropriate NIC in the same order they were assigned on the first VyOS Router. I configured the VyOS and now the order in which the NIC was assigned was opposite to the first VyOS I configured.

How is the NIC order in the VM Settings presented to the guest OS in HyperV? or can we force the order of the NIC on how they are presented to the Guest VM. vSphere and VMWare Workstation seems to be able to control how the NIC order can be arranged so there must be a configuration in HyperV for a similar result, i Just cant seem to find it anywhere.

Any ideas?


For God, and Country.


Hyper-V 3.0 VM stuck in "Stopping" state

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We are running Hyper-V on a 2012 server and for the 20nd time in as many months I've logged into a VM and restarted or migrated to another host it but it's stuck in the "stopping" state in Hyper-V 3.0 and doesn't give me any Turn Off, Shutdown, Save, Pause or Reset options.  The only thing I've been able to do is to schedule a time to reboot the Hyper-V server.  Has anyone else experienced this?  Is there any command I can run get the VM  top turn off  w/o having to reboot or restart the Hyper-V service?

Our host environment as below:

HP C7000 Blade Chasis

16x ProLiant BL460c Gen8 Server (Intel(R) Xeon(R) CPU E5-2650 0 @ 2.00GHz (8 Cores) - 256GB Ram)

Blades server have Hp FlexFabric 10Gb 2-port

2x HP VC Flex-10 Enet Module on Chassie

HP VC 8Gb 20-Port FC Module on Chassie

Also We turned off tcp checksum offloading but it didn't work.

We've opened case to HP support but they analyzing our system and didn't find any problem to themself.

Does anybody have any fixes for these problems?

The Operation Failed with Error 32788

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Hello,

I have installed windows server 2012 R2 Stnd Edition & running VM (Windows Server 2012 R2) on Hyper-V.

machine is working fine but i want to attached "Fiber channel Adapter" because i want to attach my EMC SAN AX5 LUNs with VM.

When i add hardware with VM then i am getting error message when switch ON VM  "The Operation Failed with Error 32788 "

I tried a lot but could not get any possitive result. Kindly let me know how to get EMX SAN LUN on Virtual Machine as my VM already working and i want to attach SAN LUNs to VM. 

Regards,

Undo "Revert" of VM on Hyper-V Possible?

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I accidently reverted a VM, running vista 32-bit, on Hyper-v server running on 2008 R2 64-bit. The machine was running and accidently pressed the revert button. It did shutdown the machine and when i started it back, it  lost all the changes I had made to the VM. I also had losts of file under my user folder that are lost too. Is there a way to recover. Is there a way to undo the "Revert" of VM on Hyper-V

Connecting Hyper-V machines across network

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Hi.  I have Hyper-V server 2016, running a 2012R2 guest as a DC.  On my W10 laptop host, I am running a W10 Hyper-V guest.  I have set it to point to the DNS of the DC, plus the DC is pingable by name, as well as IP.  If I try to join to domain it says it cannot find it! (Domain is NOT pingable.)

Yet, on the Hyper-V server, a second 2012R2 guest can join the domain no problem (obviously since they are running on the same host.)

Can anyone offer any reasons why this is happening?  Totally Frustrating!  :((  i do not wish to do all my VM testing on the one host, rather keep server VMs there and client VMs on my laptop for across-network testing.



Hyper V, VMs will not start.

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I have 2 Hyper V hosts. Each are in different locations but do take the same GPO. (which no major changes have accored) Both machines have been working just fine for about 2 years. It appears my biggest error codes are 15500 and 15130. Also I have a few VMs still running but if I was to shut them down I cannot get them to start back up.


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