A blog for all the virtualization and operating system troubleshooting

To access DCUI/Console of ESXi: Use below key combination of ALT + Function keys to access the Direct Console User Interface (DCUI) of an ESXi host ALT+F1  = Switches to the console. ALT+F2  = Switches to the DCUI. ALT+F11  = Returns to the banner screen. ALT+F12  = Displays the VMkernel log on the consol e.

 Steps: 1.Download HYTRust Keyprovider OVA from: https://www.entrust.com/digital-security/key-management/keycontrol They give 60 day trail free deployment. 2.Deploy the KMS server. 3.Once Installation completes. Login to Entrust server using IP and login with user/password you provided while install. 4.Go to "KMIP" ->Basic ,mark state=Enabled ,vesion=1.1 5.From KMIP ->client certificates->Actions ->Create client certificate (Don't give any passwords) 6.Select the created certificate and download ZIP file and extract. 7.Go to Vcenter server-> Configure ->Security->Key providers      Add Standard key Provider      provide KMS name (certificate name)       IP of the Entrust server       Port:5696 8.Select the KMS server and select the keys and "Establish Trust"     Select the zip folder and choose <KMS>.PEM that we created     use the same file for certificate and key upload path...

 Run below command on CMD prompt of windows machine: systeminfo /s %computername% | findstr /c:"Model:" /c:"Host Name" /c:"OS Name" C:\Users\Administrator>systeminfo /s %computername% | findstr /c:"Model:" /c:"Host Name" /c:"OS Name" Host Name:                 RANJIServer OS Name:                   Microsoft Windows Server 2016 Standard System Model:              VMware Virtual Platform C:\Users\Administrator>

 ESXCLI command can be used for verifying login (by ssh) esxi server is physical or virtual using: esxcli hardware platform get 1)Physical: [root@ranjith-s1:~] esxcli hardware platform get Platform Information    UUID: f 0x46 0xbb 0x77 0x4e     Product Name: PRIMERGY RX2530     Vendor Name: FUJITSU    Serial Number: XYZABC    IPMI Supported: true [root@mva-rx2530-s1:~] 2)Virtual Machine [root@ranjith-2:~] esxcli hardware platform get Platform Information    UUID: 2 0xbd 0x1c 0xa0 0xd4 0x5e 0x32 0x7 0    Product Name: VMware7,1     Vendor Name: VMware, Inc.    Serial Number: VMware-12 34 56    Enclosure Serial Number: None    BIOS Asset Tag: No Asset Tag    IPMI Supported: false

Error: When you change the esxi acceptance level: Command:  esxcli software acceptance set --level=CommunitySupported                         Secure boot enabled: Cannot change acceptance level to community Solution: disable secure boot for the esxi .   a) If it's a physical server, then you need to do this in UEFI.     b)For VMs, Power off VM, VM  edit settings -> VM Options tab (Boot Options) ->setting for Secure Boot. ->UnCheck

Error: while creating VM on a vvOL datastore A general system error occurred: PBM error occurred during PreCloneCheckCallback: vmodl.fault.systemerror Solution: SSH to the VCSA using PuTTY or similar SSH client. service vmware-sps restart

Error: Could not connect to one or more vCenter Server systems:https://VCIP:443/sdk Solution: service-control --stop --all service-control --start --all

For windows: Get-FileHash <FIle> -Algorithm SHA256 For Linux: sha256sum <File name>

For windows: Get-FileHash <File> -Algorithm MD5 For Linux: md5sum <File>