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ESXi on Minisforum MS-01

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In recent years, there have been a number of new players that have entered the mini PC market that have really been pushing the boundaries on small form factor systems. Minisforum is one such company, that was founded in 2018 and have been steadily producing more interesting kits to compete with some of the more established vendors in this space.

Early on, the kits from Minisforum were pretty comparable (compute, network and storage capabilities) with other vendors using the popular 4x4 design, pioneered by Intel with their Intel NUC platform. With each new generation of mini PCs from Minisforum, the chassis aesthetics started to become more unique and they started to have more differentiated offerings like broader CPU choices including some of the latest AMD desktop and mobile processors.

Even I was intrigued by some of Minisforum offers from a VMware perspective, but unfortunately Minisforum had no interest in collaborating when I had reached out a while back. Over the years, I stayed informed of new releases from Minisforum but nothing really stood out to me as much as their recent announcement of the Minisforums Workstation MS-01.


UPDATE (03/05/2024) - SimplyNUC has just launched the Onyx Pro, which is nothing more than a rebrand of the Minisforums MS-01 and review here would also apply to SimplyNUC OnyxPro.

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Troubleshooting ESXi Shutting down firmware services and UEFI Runtime Services (RTS) error message

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Several months back, I was helping a customer debug an issue where I needed to install the GA release of ESXi 6.7! Yikes, it certainly has been a minute since I have installed anything older than 7.x but I figured it should still work fine with recent hardware like an Intel NUC systems, right?

After the ESXi installer started to boot up, it eventually halted with the following message:

Shutting down firmware services...

Using 'simple offset' UEFI RTS mapping policy


I decided to give it one more go by using a more recent release of ESXi 6.7 Update 3 and to my surprise, not only did ESXi installed perfectly fine but I did not run into the error message shown abvove!

I then realized that perhaps this has something to do with the ESXi bootloader, like any piece of software, there are fixes and enhancements with newer releases. I also recall a conversation with one of our Engineers that the ESXi bootloader is also designed to be backwards compatible, so that gave me an idea to try replacing the default ESXi 6.7 GA bootloader files with the ones found in ESXi 6.7 Update 3 and now I was able to install ESXi 6.7 GA release!

However, my success did not last very long as I ran into a slightly different message after the initial reboot:

Shutting down firmware services…

UEFI runtime services support is disabled

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How to check the number of days before ESXi password expires?

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Local user accounts created in ESXi including the root user has a default password expiration of 99999 days before administrators need to change the password. Users can control the password expiry by modifying the following ESXi Advanced Setting called Security.PasswordMaxDays which is also referenced in the ESXi Security Documentation along with other advanced configurations.

Password rotation or updates are typically managed by an organizations password management solution which is responsible keeping track and notifying when local passwords are about to expire. With that said, not everyone has a password management solution and how do you quickly check how many days left before an account password expires on an ESXi host? I initially thought this should be pretty simple to figure out, especially with utilities like chage but the version that ESXi ships is a stripped down version via Busybox and it did not provide any expiry details like the typical chage version might.

This meant, that the password expiry would need to be calculated manually and luckily, this is not a new concept. The answer lies in the /etc/shadow file which contains a number of fields that can then be used to figure out the number of days left before an account expires or if has already expired. I will not bore you with the details, but you can create the following shell script which can run in the ESXi Shell to provide you with the answer.

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