Migration from ESXi to Proxmox

1. Uninstall open-vm-tools/VMware Tools

   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	 

   https://knowledge.broadcom.com/external/article/339581/uninstalling-open-vmware-tools-included.html

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

vi /etc/dracut.conf.d/virtio-drivers.conf

add_drivers+=" virtio_blk virtio_scsi virtio_net virtio_pci virtio_ring virtio "

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

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

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

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

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

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

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

1. Uninstall VMware Tools

If the ESXi-GUI hangs after migrating a vm, restart management services via ssh on the ESXi-Host:

/etc/init.d/hostd restart
/etc/init.d/vpxa restart

1. Set VM ID
2. Set VM name
3. Checkmark prepare for VirtIO-SCSI
4. Set NIC to VirtIO and set Bridge
5. Import

Do not boot immediately after migration. See post migration steps below.

1. Set VM ID
2. Set VM name
3. Set SCSI Controller to VirtIO-SCSI single and disks to scsiN
4. Set NIC to VirtIO and set Bridge
5. Import

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

Status   Name               DisplayName
------   ----               -----------
Running  QEMU-GA            QEMU Guest Agent

qm agent <vmid> ping

1. Install qemu guest agent

   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

1. Add temporary 1 GB SCSI HDD
2. Add virtio iso
3. Boot VM, install quemu guest agent and drivers
4. Restore network configuration to adapter(s) (might only work if old one was e1000(e))

   [HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Tcpip\Parameters\Interfaces]

5. Shutdown VM, reattach SATA VM disks as SCSI and remove temporary 1 GB disk
   1. Set cache to writeback and enable discard
6. Adjust boot order and enable qemu guest agent in vm options
7. Boot VM, check diskmanager for offline secondary disks, Reboot

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