Troubleshooting ESXi 5.5.0 boot PSOD

[Ramil_uzb]

Good day to all!

I have troubles with my ESXI 5.5. Booting process of ESXI server goes as usually instead of showing PSOD purple screen including next text:

VMware ESXi 5.5.0 [Releasebuild-1331820 x86_64]

NOT_IMPLEMENTED bora/vmkernel/core/bootModule.c:122

cr0=0x800010003d cr2=0x0 cr3=0x100102000 cr4=0x216c

*PCPU0:32768/bootstrap

PCPU  0: SSSSH

Code start: 0x418039a00000 VMK uptime: 0:00:00:04.841

0x417fddc08b80:[0x41801dc8cf99]PanicvPanicInt@vmkernel#nover+0x575 stack: 0x417f00000008

0x417fddc08be0:[0x41801dc8d1dd]Panic_NoSave@vmkernel#nover+0x49 stack: 0x417fdds08c60

0x417fddc08cf0:[0x41801dc0b1be]BootModule_LoadAll@vmkernel#nover+0x42e stack: 0x41801dc0bd3e

0x417fddc08df0:[0x41801dc00c72]LegacyBootVMKernel@vmkernel#nover+0xaa2 stack: 0x10000000001

0x417fddc08fe0:[0x41801dc01169]BootVMKernel@vmkernel#nover+0xfd stack: 0x41801de53438

base fs=0x0 gs=0x418040000000 Kgs=0x0

No place on disk to dump data.

No file configured to dump data.

Debugger waiting(world 32768) -- no port for remote debugger.

It happened after cutting off electricity while shooting down process of ESXI server. As i see from error message, there are problems with one of the kernel file, maybe i mistaken. Please help with this problem, unfortunately i had no backups of this server, in case of reinstalling ESXI i will have to do a huge work and it will cost me a looot of time. Please anyone help. i would be very appreciate for any help.

[cykVM]

Hi,

looks like there is no way around re-installing the host. Similar topic found here: Troubleshooting ESXi 5.5.0 U1 boot PSOD

and general information on that PSOD in this KB: VMware KB: ESXi installation fails with a purple diagnostic screen error: NOT_IMPLEMENTED bora/vmker...

cykVM

[Ramil_uzb]

Thanks for you answer!

Yes, i read those links. I still have a hope to recover my ESXI somehow.... i keep trying to find solution, re-installing is not acceptable, i have several important virtual servers under this ESXI 

[cykVM]

Re-Installing does not delete/format your datastore(s) usually. You can re-add the VMs to inventory after successful re-installation of ESXi.

[Ramil_uzb]

Is it really like this? may i be sure that the re-installation will not delete my VMs? I don't remember exactly if i need or not to format disk while installation of ESXI. If so, i will try to do it immediately

[cykVM]

You may install to alternate location like empty USB key or SD-Card for testing. Setup detects the existing datastores and will add them to the host's configuration.

There is a step in setup process asking about what to do with existing datastores.

[Ramil_uzb]

Thank you!. I will do it

[cykVM]

See for example: vSphere Documentation Center

nstalling ESXi on a Drive with an Existing ESX or ESXi Installation or VMFS Datastore 

ESXi 5.0 uses the same installer for fresh installations and upgrades or migrations. If the installer finds an existing ESX 4.x or ESXi 4.x installation, it provides the option to upgrade or to do a fresh installation.

See vSphere Upgrade.

Depending on the disk layout of your system, the ESXi installer offers a choice between preserving or overwriting the VMFS datastore during installation.

[Ramil_uzb]

I would like to thank you for your tips, i reinstalled ESXI without formatting existing datastore, after this i successfully added VM's to inventory, and it is runs perfectly. Thank you very much!