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Type of vSphere Guest OS Customization engines for Linux VM

21 March 2024
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Reading Time: 5 minutes VMware vSphere has a guest customization feature to change some guest OS setting for VMs that are cloned of deployed from template. For example to change the computer name, network settings, or timezone settings. Customizing guest operating systems helps prevent conflicts that occur if virtual machines with identical settings are deployed, for example conflicts due to duplicate computer names. For Linux based VM there are two diffent type of guest OS customization engines: But which one is used and which could be preferred?

Highlights, vSphere

How to disable cloud-init on Ubuntu Server

15 March 2024
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Reading Time: 2 minutes Cloud-init is a powerful configuration tools used in several Linux distributions, but his implementation is not always the best. And on some version of Ubuntu Server it’s making the boot slower and it’s annoning with some console messaging, also after the boot phase. There are two different approach to disable cloud-init.

General, Highlights

Linux Kernel 6.8 released

10 March 2024
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Reading Time: < 1 minute Linus Torvalds announced today the release and general availability of Linux kernel 6.8, the latest stable version of the Linux kernel that introduces several new features and improvements. This will be the last mainline kernel to have less than ten million git objects (there are 9.996 million objects overall!).

General, Highlights

Issue with cloned Ubuntu VMs using DHCP configuration

10 February 2024
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Reading Time: 3 minutes After cloning VMs that are running “recent” version of Ubuntu as Guest Operating System (OS) from VM template or a parent VM, the new VMs acquire the same DHCP IP addresses from the DHCP server, no matter if guest customization is applied or not… also if the two VMs have different MAC addressess. And doesn’t matter the type of hypervisor that you are using… but, of course, VMware has documented this issue in this article: Cloned VM acquires the same DHCP IP address towards guest customization process (KB 82229).

General, Highlights

Red Hat Enterprise Linux 9.0

Reading Time: 2 minutes Red Hat Enterprise Linux 9 was announced at Red Hat Summit on May 10, 2022, and has officially released on May 17, 2022. This release is designed to meet the needs of the hybrid cloud environment, and is ready for you to develop and deploy from the edge to the cloud. It can run your code efficiently whether deployed on physical infrastructure, in a virtual machine, or in containers built from Red Hat Universal Base Images (UBIs).

RedHat

RedHat (virtual) Summit 2020

28 April 2020
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Reading Time: 2 minutes The Red Hat Summit 2020 was planned in San Francisco at the Moscone Center, April 27-29, 2020. But of course it was re-thinked in the time of COVID-19 pandemia. Now it’s a Red Hat Summit 2020 Virtual Experience delivered as a free on-line event during April 28-29 2020.

Events, RedHat

Issue during Linux VM power-off

3 March 2020
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Reading Time: 2 minutes Using VMware virtualization products (and not only vSphere, but also Workstation and Fusion) on recent Linux CentOS (or RedHat) VM you may found an annoying issue during VM power-off procedure. The Linux kernel will initiate the halting phase, but the VM may remain powered-on with this message in the console:

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