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Exclamation point (!) appears on the NIC adapter in Device Manager on the migrated
virtual machine
After a migration, the NIC adapter might not appear on the destination virtual machine. This might
happen during V2V migrations between VMware Server and VMware ESX servers. This might also
happen when a virtual machine is migrated from one Microsoft Hyper-V host to another Hyper-V
host.
You might be unable to assign the IP address to this device, which does not reappear on the
Network Connections page.
Suggested action
Manually remove the network adapter in Device Manager and trigger a Scan for Hardware
Changes. This action detects the NIC adapter and configures the drivers for it.
Network adapter in the destination ESX virtual machine is not initialized after a V2V
migration
The network adapter in the destination ESX virtual machine might not be initialized after a V2V
migration.
Suggested action
1. Log on to the destination server by using the keyboard.
2. Navigate to Device Manager. To do so, right-click My Computer, and then select Manage.
3. Right-click VMware Accelerated AMD PCNet Adapter, and then select Uninstall. The VMware
Accelerated AMD PCNet Adapter entry disappears from the list of devices.
4. Select Scan for hardware changes. A valid virtual network adapter appears in Device Manager.
5. Reboot the virtual machine.
Destination virtual machine fails to boot after X2V migration
The destination virtual machine might fail to boot and display the following error: Attempting
to load a 64-bit application, however the CPU is not compatible with
64-bit mode or Status : 0xc0000225 The boot selection failed because a
required device is missing.
Cause
For a 64-bit OS to load on a virtual machine, Intel-VT must be enabled on the destination virtual
machine host.
Suggested action
Enable the Intel-VT option in the system BIOS of the destination virtual machine host and then reboot
the virtual machine.
During editing of the settings of guest VMs created by server migration, an invalid
OS ID warning appears
After you perform an X2V migration to an ESX Host by using the Automatic Boot feature of the
server migration wizard and then change the settings of the migrated VM, the following warning
message might appear:
The guest OS ID <guest name> is not valid.
Suggested action
Follow the suggestion provided in the warning message to resolve the issue.
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