After installing Hyper-V Integration Services on the next reboot the VM displays BSOD 0x0000007B – P2V Hyper-V Guest BSOD 0x0000007e wdfldr.sys

After a P2V from an old server a BSOD was showing. I see same error related to WDFLDR.SYS.


  1. Boot the VM into LastKnownGood. Press F8 during boot.
  2. Open the Registry and drill down to HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Wdf01000 There is a Group Value that should have the Value WdfLoadGroup. In my cases it was wrongly set to base… Change this to WdfLoadGroup
  3. Then remove the Integration Components from Control Panel/Software.
  4. Reboot the VM (now without ICs)
  5. Install the ICs once again

Thanks to robertvi2 from to help to resolve this.


Enable/Disable Network interface via command line

Start elevated Command Prompt.

Get NIC list and index number:

wmic nic get name, index

Enable NIC with index number: (eg: 7)

wmic path win32_networkadapter where index=7 call enable

Disable NIC with index number: (eg: 7)

wmic path win32_networkadapter where index=7 call disable

Thanks To EddieZA from

Add Davmail as Service Linux (Systemd)

Create file davmail-systemd on  /etc/systemd/system/davmail-systemd.service

nano /etc/systemd/system/davmail-systemd.service
Description=DavMail gateway service

ExecStart=/opt/davmail/ /opt/davmail/



systemctl enable davmail-systemd

systemctl start davmail-systemd

We can test trafic with:

tail -f /opt/davmail/nohup.out

Thanks to for systemd Script.

Optimizar SSD

Usar Manager de Disco del Fabricante


Desactivar la hibernación

Powercfg /H OFF


Desactivar Superfetch

net stop superfetch


Poner en Disabled

Deshabilitar la caché de escritura 

Desde Device Management


Desactivar el indexado de la unidad


Desactivar el desfragmentador de disco

Verificar TRIM

fsutil behavior query DisableDeleteNotify 

fsutil behavior set DisableDeleteNotify 0


Enable DIPM for SSD

Navigate to “HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Control\Power\PowerSettings\0012ee47-9041-4b5d-9b77-535fba8b1442\0b2d69d7-a2a1-449c-9680-f91c70521c60”

Change value “Attributes” to 2.

Choose HIPM+DIPM on our power Plan


Get-SCVMMInventory – Get Inventory of all VM’s in SCVMM 2012 R2

Credits are from Niklas AkerlundGet an inventory of all VM’s from System Center Virtual Machine Manager including the vCPU’s, memory, all VHD´s, IP addresses.  Report to CSV and HTML. Adapted to work with last actuallly SCVMM version 3.2.8224


Créditos son de Niklas AkerlundGet

Exportar un inventario de todas las VM’s es SCVMM. Se exporta a CSV y HTML, compatible con la última version 3.2.8224.


Get-SCVMInventory -report

Give a reports for “All Hosts”

Get-SCVMInventory -VMHost SERVER01

Give data from SERVER01 Hyper-v Host.

Publicado también en

   this function gives you an invetory of the SCVMM  
   either you can get just the object for each server or also a csv and html report 
   Get-SCVMInventory -report 
   Get-SCVMInventory -VMHost hyp05 
   Niklas Akerlund 2013-09-29 
   Adapted by Martin Rojas 2016/11/08 to version 3.2.8224.0 
function Get-SCVMInventory 
        $VMHostGroup = "All Hosts", 
        $VMHostCluster = $null, 
        $VMHost = $null, 
        [string]$path =".\", 
        [string]$CSVFile = "VMdata.csv", 
        [string]$HTMLReport = "VMdata.html" 
        if(!(Get-Module virtualmachinemanager)){ 
            Import-Module Hyper-V 
            Import-Module virtualmachinemanager 
        if(Get-SCVMMServer localhost | where ProductVersion -match 3){ 
            $isR2 = $true 
            $isR2 = $false 
         if ($VMHostCluster -eq $null){ 
            if($VMHost -eq $null){ 
                $VMHosts = (Get-SCVMHostGroup -Name $VMhostGroup).AllChildHosts 
                $VMHosts = Get-SCVMHost $VMHost 
            $VMHosts = (Get-SCVMHostCluster -Name $VMHostCluster).Nodes 
            $VMs = $VMHosts | Get-SCVirtualMachine 
            $reportArray = @() 
            foreach ($VM in $VMs){ 
                Write-Verbose $VM.Name 
                    $vNics = $VM.VirtualNetworkAdapters 
                    $VHDConf = $VM.VirtualHardDisks 
                    $driveConf = $VM.VirtualDiskDrives 
                    if(($vNics[0].IPv4Addresses -ne $null)){ 
                        Write-Verbose $vNics[0].IPv4Addresses[0] 
                        $IPAddress1 = $vNics[0].IPv4Addresses[0] 
                        if (!$isR2){ 
                            if(($vNics[0].IPv4Addresses -ne $null)){ 
                            $IPAddress1= (Hyper-V\Get-VMNetworkAdapter -ComputerName $VM.HostName -VMName $VM.Name).IPv4Addresses[0] 
                                $IPAddress1 = "N/A" 
                            Write-Verbose "NO IP" 
                            $IPAddress1 = "N/A" 
                    $Snapshots = "Yes" 
                    $Snapshots = "No" 
                    $data = [ordered]@{ 
                    VMName = $VM.Name 
                    vCPUs = $VM.CPUCount 
                    MemoryAssignedMB = $VM.MemoryAssignedMB 
                    Status = $VM.Status 
                    OperatingSystem = $VM.OperatingSystem 
                    HostName = $VM.HostName 
                     TotalSizeGB = $VM.TotalSize/1GB -as [int] 
                    vNics = $vNics.Count                                                          
                    VirtualNetwork1 = $vNics[0].VirtualNetwork 
                    MacAddressType1 = $vNics[0].MacAddressType 
                    MacAddress1 = $vNics[0].MacAddress 
                    VirtualNetworkAdapterType1 = $vNics[0].VirtualNetworkAdapterType 
                    VLANEnabled1 = $vNics[0].VlanEnabled 
                    VLanID1 = $vNics[0].VlanID  
                    IPAddress1 = $IPAddress1 
                    NumberofVHD = $VHDConf.Count 
                    VHDName = $VHDConf[0].Name 
                    VHDFormatType = $VHDconf[0].VHDFormatType 
                    VHDSize = $VHDconf[0].MaximumSize/1GB -as [int] 
                    VHDCurrentSize = $VHDconf[0].Size/1GB -as [int] 
                    VHDBusType = $driveConf[0].BusType 
                    VHDBus = $driveConf[0].Bus 
                    VHDLUN = $DriveConf[0].Lun 
                    VHDDatastore = $VHDconf[0].Directory 
                    VHDName2 = $VHDConf[1].Name 
                    VHDFormatType2 = $VHDconf[1].VHDFormatType 
                    VHDSize2 = $VHDconf[1].MaximumSize/1GB -as [int] 
                    VHDCurrentSize2 = $VHDconf[1].Size/1GB -as [int] 
                    VHDBusType2 = $driveConf[1].BusType 
                    VHDBus2 = $driveConf[1].Bus 
                    VHDLUN2 = $DriveConf[1].Lun 
                    VHDDatastore2 = $VHDconf[1].Directory 
                    VHDName3 = $VHDConf[2].Name 
                    VHDFormatType3 = $VHDconf[2].VHDFormatType 
                    VHDSize3 = $VHDconf[2].MaximumSize/1GB -as [int] 
                    VHDCurrentSize3 = $VHDconf[2].Size/1GB -as [int] 
                    VHDBusType3 = $driveConf[2].BusType 
                    VHDBus3 = $driveConf[2].Bus 
                    VHDLUN3 = $DriveConf[2].Lun 
                    VHDDatastore3 = $VHDconf[2].Directory 
                    StartMemoryGB = $VM.Memory/1024 
                    DynamicMemory = $VM.DynamicMemoryEnabled 
                    DynamicMemoryDemandMB = $VM.DynamicMemoryDemandMB 
                    DynamicMemoryStatus = $VM.DynamicMemoryStatus -as [int] 
                    DynamicMemoryMinMB = $VM.DynamicMemoryMinimumMB -as [int] 
                    DynamicMemoryMaxGB = $VM.DynamicMemoryMaximumMB/1024 -as [int] 
                    HasSnaphots = $Snapshots 
                    Owner = $VM.Owner 
                    Cloud = $VM.Cloud 
                    CreationTime = $VM.CreationTime 
                    HasVMAdditions = $VM.HasVMAdditions 
                    VMAddition = $VM.VMAddition 
            $obj= New-Object -TypeName PSObject -property $data 
            $reportArray +=$obj  
            Write-Output $obj 
                # $reportArray 
                $CSVReport = $path + $CSVFile 
                $HTMLReport = $path + $HTMLReport 
                $reportArray | Export-Csv -Path $CSVReport -NoTypeInformation -UseCulture 
                $reportArray | ConvertTo-HTML | Out-File $HTMLReport 
        # Should we clean anything? 

Compilar fglrx 15.200 en Ubuntu 15.04 Vivid Kernel

A muchos al Querer instalar el paquete fglrx les pudo haber pasado que falló por un error:

+ [FATAL: modpost: GPL-incompatible module fglrx.ko uses GPL-only symbol
+ ‘pci_ignore_hotplug’]

La solución es downgradear nuestro kernel a o inferior como se explica en

O dejar de usar el repositorio “Proposed”

Otra opción sería patchear este módulo.

Para ello guardamos con nano o nuestro editor preferido lo siguiente con el nombre fglrx_ignore_hotplug.diff

Seguir leyendo Compilar fglrx 15.200 en Ubuntu 15.04 Vivid Kernel

Los números de 2013

Los duendes de las estadísticas de prepararon un informe sobre el año 2013 de este blog.

Aquí hay un extracto:

La sala de conciertos de la Ópera de Sydney contiene 2.700 personas. Este blog ha sido visto cerca de 11.000 veces en 2013. Si fuera un concierto en el Sydney Opera House, se se necesitarían alrededor de 4 presentaciones con entradas agotadas para que todos lo vean.

Haz click para ver el reporte completo.

Ubuntu – Tecnología – Informática – Actualidad