If you have a 5.5, 6.0… otherwise https://kb.vmware.com/s/article/2147144
shutdown the VCSA
Now, press the bar to stop auto boot and press P to enter the GRUB Password.
From vmware KB: https://kb.vmware.com/s/article/2069041
- If the vCenter Server appliance is deployed without editing the root password in the Virtual Appliance Management Interface (VAMI), the default GRUB password is vmware.
- If the vCenter Server appliance root password is reset using the VAMI, the GRUB password is the password last set in the VAMI for the root account.
now press E to edit
select kernel and press E
Append init=/bin/bash to the kernel boot options
press enter and b to reboot
type passwd
type the ne password …
reboot it from che vsphere’s power option or type reboot
that’s it