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Preparation:
Before deploying a host upgrade, ensure that all virtual machines in this host should be shut down and Back Up VMware ESXi Host Configuration.

There are two types of upgrade files

  • The .iso is bootable and follows instructions.
  • The .zip is upgraded via SSH using CLI commands.
In this scenario, I use Offline Bundle (.zip) to upgrade host.


Upgrade Path
Running ESXi 6.7U(1-3) or ESXi 7.0U(1-3), you can upgrade directly from these versions to ESXi 8.0.
UpgradePath.png

From: Product Interoperability Matrix (vmware.com)


Upgrade Procedure:
From ESXi 6.7 to ESXi 6.7U3
HypervisorBeforeAfter
ESXiVMware ESXi 6.7.06.7.0 Update 3

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Upload the upgrade file(ESXi670-201912001.zip) to a datastore

The file location: /vmfs/volumes/63abe767-b0668188-650d-005056b5b2ef/ESXi670-201912001.zip

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Enable SSH Service

Put the node into maintenance mode

connect to the console via SSH.
vim-cmd hostsvc/maintenance_mode_enter

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View the image profiles

Connect to the console via SSH and run the following command to check the image profile.
esxcli software sources profile list -d /vmfs/volumes/63abe767-b0668188-650d-005056b5b2ef/ESXi670-201912001.zip

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Compared to the existing image profile ESXi-6.7.0-8169922-standard (VMware, Inc.), the upgrade profile name ESXi-6.7.0-20191204001-standard should be selected.

Run the upgrade and append the profile name (ESXi-6.7.0-20191204001-standard) at the end of the command.

esxcli software profile update -d /vmfs/volumes/63abe767-b0668188-650d-005056b5b2ef/ESXi670-201912001.zip -p ESXi-6.7.0-20191204001-standard

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When seeing the message: The Update completed successfully

The upgrade is completed and a reboot is required for the changes to take effect.

Finally, exit maintenance mode in the node after reboot.

vim-cmd hostsvc/maintenance_mode_exit

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From ESXi 6.7U3 to ESXi 7.0 U3
HypervisorBeforeAfter
ESXi6.7.0 Update 37.0 Update 3

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Upload the upgrade file(VMware-ESXi-7.0U3g-20328353-depot.zip) to a datastore

The file location: /vmfs/volumes/63abe767-b0668188-650d-005056b5b2ef/VMware-ESXi-7.0U3g-20328353-depot.zip

2022-12-28_151805.png

Enable SSH Service

Put the node into maintenance mode

connect to the console via SSH.
vim-cmd hostsvc/maintenance_mode_enter

View the image profiles

Connect to the console via SSH and run the following command to check the image profile.
esxcli software sources profile list -d /vmfs/volumes/63abe767-b0668188-650d-005056b5b2ef/VMware-ESXi-7.0U3g-20328353-depot.zip

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Compared to the existing image profile (Updated) ESXi-6.7.0-20191204001-standard (VMware, Inc.), the upgrade profile name ESXi-7.0U3g-20328353-standard should be selected.

Run the upgrade and append the profile name (ESXi-7.0U3g-20328353-standard) at the end of the command.

esxcli software profile update -d /vmfs/volumes/63abe767-b0668188-650d-005056b5b2ef/VMware-ESXi-7.0U3g-20328353-depot.zip -p ESXi-7.0U3g-20328353-standard

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When seeing the message: The Update completed successfully

The upgrade is completed and a reboot is required for the changes to take effect.

Finally, exit maintenance mode in the node after reboot.

vim-cmd hostsvc/maintenance_mode_exit

From ESXi 7.0 U3 to ESXi 8.0
HypervisorBeforeAfter
ESXi7.0 Update 38.0

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Upload the upgrade file(VMware-ESXi-8.0-20513097-depot.zip) to a datastore

The file location: /vmfs/volumes/63abe767-b0668188-650d-005056b5b2ef/VMware-ESXi-8.0-20513097-depot.zip

2022-12-28_151805.png

Enable SSH Service

Put the node into maintenance mode

connect to the console via SSH.
vim-cmd hostsvc/maintenance_mode_enter

View the image profiles

Connect to the console via SSH and run the following command to check the image profile.
esxcli software sources profile list -d /vmfs/volumes/63abe767-b0668188-650d-005056b5b2ef/VMware-ESXi-8.0-20513097-depot.zip

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Compared to the existing image profile (Updated) ESXi-7.0U3g-20328353-standard (VMware, Inc.), the upgrade profile name ESXi-8.0.0-20513097-standard should be selected.


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If the RAM capacity not match the minimum requires, the upgrade will be failed.

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So, I Upgrade the RAM from 4 GB to 8 GB

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Run the upgrade and append the profile name (ESXi-8.0.0-20513097-standard) at the end of the command.

esxcli software profile update -d /vmfs/volumes/63abe767-b0668188-650d-005056b5b2ef/VMware-ESXi-8.0-20513097-depot.zip -p ESXi-8.0.0-20513097-standard

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When seeing the message: The Update completed successfully

The upgrade is completed and a reboot is required for the changes to take effect.

Finally, exit maintenance mode in the node after reboot.

vim-cmd hostsvc/maintenance_mode_exit

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Conclusions:
Using the command line interface to Upgrade by ESXCLI. This method can be used for standalone ESXi hosts and ESXi hosts managed by vCenter.