Wednesday, 16 November 2016

#Windows cannot verify the digital signature for this file.

Error:

Windows cannot verify the digital signature for this file. A recent hardware or software change might have installed a file that is signed incorrectly or damage, or that might be malicious software from an unknown source.




Solution 1:
1. Restart computer and boot into Advanced Boot Options.
(For Windows 7 press F8. For Windows 8 and 10, hold the Shift key and press restart)

2. Select Disable Driver Signature Enforcement

Windows 7

Windows 8/10





Wednesday, 9 November 2016

#Increasing the disk space for the VMware vCenter Server Appliance in vSphere 6.0

1. Open console from vCenter Server. (You also can use SSH to connect)
2. Press Alt+F1 switch to console mode. (To switch back normal mode, press Alt+F2)
3. Enter username and password.

4. Use command below to enable Bash Shell.
    shell.set --enabled true
5. Use the command below to enter Shell mode.
    shell


6. Use the command below to list the disk space
    df -h
 

Example: If  /dev/mapper/log_vg-log  in low disk space,  I going to increase the disk.

7. Use the command below to list the disk partition.
     lsblk

 Example: log_vg-log is under sde partition.

8. Use the command below to identify the disk controller.
     lsscsi

Example: sde in under 0:4 disk controller.




9. Use the vSphere Client or vSphere Web Client to increase the VM disk.
 
Example: 0:4 disk controller is Hard disk 5. (Hard disk 5 = /dev/mapper/log_vg-log)


 10. Use the command below to extend the newly added disk space.
       vpxd_servicecfg storage lvm autogrow
       
       If successful, result will show VC_CFG_RESULT=0

 11. Use the command below to check the disk space.
      df -h

Example: /dev/mapper/log_vg-log successful increase to 15GB.