How to deploy Nutanix CE Community Edition on nested ESXi

Deploying the Nutanix Community Edition (CE) on nested ESXi can be slightly tricky, but in this blog post, I will guide you through the process in just a few easy steps with the help of a script I have produced.

Steps required:

Download Nutanix CE image from the Nutanix NEXT website. The website usually offers both an ISO and a Disk Image-based Full Install. Please download the Disk Image-based Full Install file. The file will be named similar to ce-2019.02.11-stable.img.gz
Unpack the ce-2019.02.11-stable.img.gz file (the expected result is the file ce-2019.02.11-stable.img)
Rename the ce-2019.02.11-stable.img file to ce-2019.02.11-flat.vmdk
Create missing disk descriptor file
Create a virtual machine configuration (VMX) file with correct settings
1. Minimum 4 virtual CPUs
2. Enable Expose hardware-assisted virtualization to the guest OS on the CPU
3. Minimum 16 GB memory (you must really have a minimum 16 GB physical memory available if not this can be solved:
  1. After deployment, do not start the installation. Instead, log in using root / nutanix/4u
  2. Edit the /home/install/phx_iso/phoenix/sysUtil.py file
  3. Search for the line custom_ram = 12 and edit this to custom_ram = 8
  4. This will allow the installation to complete even though you only have 12 GB of physical memory available. However, some features such as compression/deduplication will have insufficient memory so beware!
4. Add the existing ce-2019.02.11.vmdk file as SCSI0:0
5. Change the SCSI controller to type VMware Paravirtual SCSI Adapter (PVSCSI)
6. Additional 200 GB VMDK as SCSI0:1
7. Additional 500 GB VMDK as SCSI0:2
8. Modify network adapter to VMXNET3 and connect it to the appropriate port group.

Now we have the VMDK disk data (-flat.vmdk) file, however, we are missing the disk descriptor file (.vmdk file). If you want to do this manually, VMware has a knowledge base article that describes the process here: https://kb.vmware.com/s/article/1002511.

If you have difficulties following the KB article or just prefer to have this automated, then you can use this script:

# Set variables to locate the Nutanix CE image you have uploaded and renamed to -flat.vmdk
cd /

vmdkpath=$(find -name “*ce-*.*.*-flat.vmdk”)

if [ -z “$vmdkpath” ]
then
echo “Unable to locate Nutanix CE image… aborting”
else
echo % Located Nutanix CE image and setting up variables
vmdkflatname=$(find -name “*ce-*.*.*-flat.vmdk” -exec basename {} \;)
vmdkname=$(find -name “*ce-*.*.*-flat.vmdk” -exec basename {} \; | sed ‘s/.\{10\}$//’)
vmdksize=$(ls -nl $vmdkpath | awk ‘{print $5}’)
vmdktempfolder=$(find -name “*ce-*.*.*-flat.vmdk” -exec dirname {} \; | sed “s|^\.||”)/temp
vmdkfolder=$(echo $vmdktempfolder | sed ‘s/.\{4\}$//’)
vmname=$(basename $vmdkfolder)
vmdkdisk1=$(echo $vmname\_1.vmdk)
vmdkdisk2=$(echo $vmname\_2.vmdk)

echo % Renaming Nutanix CE image
mv $vmdkpath ${vmdkfolder}${vmname}-flat.vmdk

echo % Creating temporary working folder
mkdir $vmdktempfolder

echo % Creating new disk descriptor file and temporary -flat.vmdk file
vmkfstools -c $vmdksize -d thin $vmdktempfolder/$vmname.vmdk

echo % Deleting temporary -flat.vmdk file
rm $vmdktempfolder/${vmname}-flat.vmdk

echo % Moving new disk descriptor file to same folder as the uploaded nutanix ce image
mv $vmdktempfolder/$vmname.vmdk $vmdkfolder

echo % Removing temporary working folder
rmdir $vmdktempfolder

echo % Creating 200 GB virtual SSD hot tier VMDK – thin provisioned
vmkfstools -c 214748364800 -d thin $vmdkfolder$vmname\_1.vmdk

echo % Creating 500 GB HDD cold tier VMDK – thin provisioned
vmkfstools -c 536870912000 -d thin $vmdkfolder$vmname\_2.vmdk

echo % Creating VMX file with customized settings
vmxnvram=$(echo $vmname.nvram)
cat <<EOT >> $vmdkfolder/$vmname.vmx
.encoding = “UTF-8”
config.version = “8”
virtualHW.version = “13”
nvram = “$vmxnvram”
pciBridge0.present = “TRUE”
svga.present = “TRUE”
pciBridge4.present = “TRUE”
pciBridge4.virtualDev = “pcieRootPort”
pciBridge4.functions = “8”
pciBridge5.present = “TRUE”
pciBridge5.virtualDev = “pcieRootPort”
pciBridge5.functions = “8”
pciBridge6.present = “TRUE”
pciBridge6.virtualDev = “pcieRootPort”
pciBridge6.functions = “8”
pciBridge7.present = “TRUE”
pciBridge7.virtualDev = “pcieRootPort”
pciBridge7.functions = “8”
vmci0.present = “TRUE”
hpet0.present = “TRUE”
floppy0.present = “FALSE”
numvcpus = “4”
memSize = “16384”
bios.bootRetry.delay = “10”
powerType.powerOff = “default”
powerType.suspend = “soft”
powerType.reset = “default”
tools.upgrade.policy = “manual”
sched.cpu.units = “mhz”
sched.cpu.affinity = “all”
sched.cpu.latencySensitivity = “normal”
vm.createDate = “1552034628071900”
scsi0.virtualDev = “pvscsi”
scsi0.present = “TRUE”
sata0.present = “TRUE”
svga.autodetect = “TRUE”
scsi0:0.deviceType = “scsi-hardDisk”
scsi0:0.fileName = “$vmname.vmdk”
sched.scsi0:0.shares = “normal”
sched.scsi0:0.throughputCap = “off”
scsi0:0.present = “TRUE”
scsi0:1.deviceType = “scsi-hardDisk”
scsi0:1.fileName = “$vmdkdisk1”
scsi0:1.virtualSSD = 1
sched.scsi0:1.shares = “normal”
sched.scsi0:1.throughputCap = “off”
scsi0:1.present = “TRUE”
scsi0:2.deviceType = “scsi-hardDisk”
scsi0:2.fileName = “$vmdkdisk2”
sched.scsi0:2.shares = “normal”
sched.scsi0:2.throughputCap = “off”
scsi0:2.present = “TRUE”
ethernet0.virtualDev = “vmxnet3”
ethernet0.networkName = “VM Network”
ethernet0.addressType = “generated”
ethernet0.wakeOnPcktRcv = “FALSE”
ethernet0.present = “TRUE”
sata0:0.deviceType = “atapi-cdrom”
sata0:0.fileName = “/vmfs/devices/cdrom/mpx.vmhba64:C0:T0:L0”
sata0:0.present = “TRUE”
displayName = “$vmname”
guestOS = “other-64”
vhv.enable = “TRUE”
bios.bootDelay = “5000”
toolScripts.afterPowerOn = “TRUE”
toolScripts.afterResume = “TRUE”
toolScripts.beforeSuspend = “TRUE”
toolScripts.beforePowerOff = “TRUE”
tools.syncTime = “FALSE”
uuid.bios = “56 4d fe 2a 63 f7 10 22-a1 84 e7 d8 2f 20 6e 23”
uuid.location = “56 4d fe 2a 63 f7 10 22-a1 84 e7 d8 2f 20 6e 23”
uuid.action = “create”
vc.uuid = “52 c0 0c 4c 3b a9 bb 9d-05 aa 9b ba 72 31 f0 80”
sched.cpu.min = “0”
sched.cpu.shares = “normal”
sched.mem.min = “0”
sched.mem.minSize = “0”
sched.mem.shares = “normal”
EOT

vim-cmd solo/registervm $vmdkfolder/$vmname.vmx

fi

How does the script work?

Create a folder on your target datastore with the same name as you would like the virtual machine to be named.
Upload the ce-2019.02.11-flat.vmdk file to the newly created folder
Connect to your ESXi host using SSH and execute the script.
The script will:
1. Locate the ce-2019.02.11-flat.vmdk file
2. Rename it from ce-2019.02.11-flat.vmdk to <virtual machine name>-flat.vmdk
3. Create a temporary working directory
4. Creating the missing disk descriptor file and a temporary -flat.vmdk file
5. Delete the temporary -flat.vmdk file
6. Move the new disk descriptor file to the virtual machine folder
7. Delete the temporary working directory
8. Create a thin-provisioned 200 GB VMDK to be used for the Nutanix hot tier (this virtual disk will be marked as a virtual SSD)
9. Create a thin-provisioned 500 GB VMDK to be used for the Nutanix cold tier
10. Create a virtual machine configuration (VMX) file with the correct settings
11. Register the new virtual machine with your ESXi host

Once the VM boots up, you will need to:

Select the second option in the boot menu (rescue)
Login using
1. Username: root
2. Password: nutanix/4u
Change directory to /var/cache/libvirt/qemu/capabilities/
Edit the only XML file inside the /var/cache/libvirt/qemu/capabilities/ folder using for example command “vi”
Search for rhel7.3.0 by using /rhel7.3.0 then replace it with rhel7.2.0 and save the file.
Edit the /home/install/phx_iso/phoenix/svm_template/kvm/default.xml file using for example command “vi”
Look for the domain type = kvm section and find the <features> sub-section that looks like:
1. <features>
2. <acpi/>
3. <apic eoi=’on’/>
4. <pae/>
5. </features>
Edit this section so it looks like this:
1. <features>
2. <acpi/>
3. <apic eoi=’on’/>
4. <pae/>
5. <pmu state=’off’/>
6. </features>
Save the file
Reboot
Once again, select the rescue option
Once you get to the login prompt, simply enter as username: install and press enter.
From here the process is straight forward.

Thanks to Jorge de la Cruz for the awesome guide in Spanish, make sure you check out his blog post for additional screenshots

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