====== Migration from ESXi to Proxmox ======

===== Pre-Migration =====

==== Linux ====

  - Uninstall open-vm-tools/VMware Tools<code>
rpm -qa | grep vm                              # SLES
zypper se open-vm-tools                        # SLES	 
zypper rm open-vm-tools                        # SLES	 
apt remove open-vm-tools                       # Debian	 
vmware-uninstall-tools.pl                      # Linux VMware Tools	 
</code> https://knowledge.broadcom.com/external/article/339581/uninstalling-open-vmware-tools-included.html

=== SLES ===

<code>
grep CONFIG_VIRTIO /boot/config-$(uname -r)
grep CONFIG_VIRTIO /boot/config-$(uname -r) | grep =y
lsinitrd /boot/initrd-$(uname -r) | grep virtio
</code>

''vi /etc/dracut.conf.d/virtio-drivers.conf''
<code>
add_drivers+=" virtio_blk virtio_scsi virtio_net virtio_pci virtio_ring virtio "
</code>

https://support.scc.suse.com/s/kb/Additional-kernel-modules-not-added-to-the-initrd-when-specified-in-etc-dracut-conf-1583239414605?language=en_US


<code>
dracut -f /boot/initrd-$(uname -r) > /tmp/dracut.log 2>&1

lsinitrd /boot/initrd-$(uname -r) | grep virtio
</code>

<code>
lsmod | grep virtio
dracut -f /boot/initrd-$(uname -r) --add-drivers "virtio virtio_pci virtio_blk virtio_net virtio_ring virtio_scsi"     # force adding the drivers
lsinitrd /boot/initrd-$(uname -r) | grep virtio
</code>

https://pve.proxmox.com/wiki/Paravirtualized_Drivers_for_Linux

=== Debian ===

<code>
lsinitramfs /boot/initrd.img-$(uname -r) | grep virtio
</code>

==== Unix ====
=== FreeBSD ===

  - Uninstall open-vm-tools/VMware Tools
  - Disable hardware checksum offload (pfSense: System > Advanced > Networking)
  - Backup Config if firewall (pfSense/OPNsense)
    - Rename Interfaces in config to e.g. normal interface ''vtnet1'' vlan interface ''vtnet1.123''
==== Windows ====

  - Uninstall VMware Tools

===== Migration =====

:!: If the ESXi-GUI hangs after migrating a vm, restart management services via ssh on the ESXi-Host:
<code>
/etc/init.d/hostd restart
/etc/init.d/vpxa restart
</code>
==== Windows ====

  - Set VM ID
  - Set VM name
  - Checkmark prepare for VirtIO-SCSI
  - Set NIC to VirtIO and set Bridge
  - Import

:!: Do not boot immediately after migration. See post migration steps below.
==== Linux ====

  - Set VM ID
  - Set VM name
  - Set SCSI Controller to VirtIO-SCSI single and disks to scsiN
  - Set NIC to VirtIO and set Bridge
  - Import
===== Post-Migration =====



<code>
PS C:\Users\Administrator> Get-Service QEMU-GA

Status   Name               DisplayName
------   ----               -----------
Running  QEMU-GA            QEMU Guest Agent
</code>
<code>
qm agent <vmid> ping
</code>

==== Linux ====

  - Install qemu guest agent<code>
zypper ref && zypper in qemu-guest-agent       # SLES
apt update && apt install qemu-guest-agent     # Debian
systemctl start qemu-guest-agent
systemctl enable qemu-guest-agent
systemctl status qemu-guest-agent
</code>



==== Windows ====

  - Add temporary 1 GB SCSI HDD
  - Add virtio iso
  - Boot VM, install quemu guest agent and drivers
  - Restore network configuration to adapter(s) (might only work if old one was e1000(e))<code>
[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Tcpip\Parameters\Interfaces]</code>
  - Shutdown VM, reattach SATA VM disks as SCSI and remove temporary 1 GB disk
      - Set cache to writeback and enable discard
  - Adjust boot order and enable qemu guest agent in vm options
  - Boot VM, check diskmanager for offline secondary disks, Reboot


:!:  If vm is a network license server, boot without network connection and check licensing status