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How to prevent physical CD-ROM from ejecting after installing or upgrading ESXi?

07.15.2019 by William Lam // Leave a Comment

While catching up on some news over the weekend, I had noticed a VMware Reddit thread asking a pretty interesting question on how to prevent the physical CD-ROM tray from ejecting after installing or upgrading ESXi? This behavior occurs whether you are using a physical CD-ROM media or a "Virtual" ISO image via an out-of-band interface like an iDRAC or iLO. If you are automating the installation or upgrade using Auto Deploy or network installation such as Kickstart, this is not a problem.

However, I was a bit surprised to hear that this was still a pain point in 2019, as many of the new servers in market do not even include an option for CD-ROM. Some of the suggestions really brought me back to the early 2000's including physically taping up the CD-DROM tray, which I have definitely seen customers doing but this is not a scalable solution and it requires a visit to the datacenter. 

One easy solution that I had suggested was to take advantage of ESXi's scripted installation capability also known as Kickstart and use the supported ESXi --noeject option after reboot. Since the install/upgrade was being done manually, the added benefit of this solution is that you can now have it automated 🙂 The other nice thing about this option is that you can specify the kickstart using the default ESXi ISO or you can take it a step further and embed the Kickstart with a custom ESXi ISO.

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Categories // Automation, ESXi Tags // cdrom, ESXi, kickstart, ks.cfg, noeject

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William is Distinguished Platform Engineering Architect in the VMware Cloud Foundation (VCF) Division at Broadcom. His primary focus is helping customers and partners build, run and operate a modern Private Cloud using the VMware Cloud Foundation (VCF) platform.

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