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Ensure, that the BIOS on the HP Server, is set to first boot device is the SD card or USB flash drive.<br />
<br />
Where did you install ESXi ?<br />
<br />
onto local disk?<br />
<br />
otherwise, it's re-install ESXi.
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Ensure, that the BIOS on the HP Server, is set to first boot device is the SD card or USB flash drive.

Where did you install ESXi ?

onto local disk?

otherwise, it's re-install ESXi.

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Thanks for the reply. &nbsp;<br />
<br />
It was installed on an SD card. &nbsp;I just set the server to boot from flash drive and it tried but couldn't. &nbsp;There are no HDD's in the server.
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Thanks for the reply.  

It was installed on an SD card.  I just set the server to boot from flash drive and it tried but couldn't.  There are no HDD's in the server.

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Good call. &nbsp;I went to check on whether the SD card was dead or just needed to be touched so I pulled it out and put it back in. &nbsp;Bam! &nbsp;It booted up but I still can't ping it.
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Good call.  I went to check on whether the SD card was dead or just needed to be touched so I pulled it out and put it back in.  Bam!  It booted up but I still can't ping it.

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Greetings Experts!<br />
<br />
I have an HP G8 server that has VMWare vSphere 5 installed on a flash drive. &nbsp;I shut down all three HP hosts on Friday because of an HVAC issue and when I brought them up Monday around noon, this G8 server is displaying an error (non-system disk or disk error). &nbsp;The other servers came up without an issue. &nbsp;Any suggestions on fixing the boot issue?<br />
<br />
Thanks in advance.
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Greetings Experts!

I have an HP G8 server that has VMWare vSphere 5 installed on a flash drive.  I shut down all three HP hosts on Friday because of an HVAC issue and when I brought them up Monday around noon, this G8 server is displaying an error (non-system disk or disk error).  The other servers came up without an issue.  Any suggestions on fixing the boot issue?

Thanks in advance.

VMware host can't boot (non-system disk or disk error)

VMware, a software company founded in 1998,  was one of the first commercially successful companies to offer x86 virtualization. The storage company EMC purchased VMware in 1994. Dell Technologies acquired EMC in 2016. VMware’s parent company is now Dell Technologies.

VMware has many software products that run on desktops, Microsoft Windows, Linux, and macOS, which allows the virtualizing of the x86 architecture.  Its enterprise software hypervisor for servers, VMware vSphere Hypervisor (ESXi), is a bare-metal hypervisor that runs directly on the server hardware and does not require an additional underlying operating system.

VMware

Virtualization is the act of creating a virtual (rather than actual) version of something, including (but not limited to) a virtual computer hardware platform, operating system (OS), storage device, or computer network resources. Virtualization is usually the creation of a system that executes separate from the underlying hardware resources, or the creation of an entire desktop for systems located elsewhere, similar to thin clients.

Virtualization

Servers are computing devices that are similar to desktop computers in that they have the same basic components, but are significantly different in size, configuration and purpose. Servers are usually accessed over a network, and many run unattended, without a computer monitor, input device, audio hardware or USB interfaces. Many servers do not have a graphical user interface (GUI), and are configured and managed remotely. Servers typically include hardware redundancy such as dual power supplies, RAID disk systems, and ECC memory, along with extensive pre-boot memory testing and verification. Critical components might be hot swappable, and to guard against overheating, servers might have more powerful fans or use water cooling.