Since there is no option to reset the root password with VCSA running, we need to restart the VCSA in single-user mode. To do that, restart the VCSA, and when the PhotonOS logo is displayed, press e on your keyboard to edit the boot loader. Locate the line starting with linux, and at the end of the line add the following:
If you have just upgraded VMware VCSA to v7.0.1, but cannot log in, even though the root password is correct, you have probably locked the root user out. You can of course wait or you can proceed with the unlock procedure.
To reset the root password on the VCSA 6.x we need to boot the system into single user mode. Since v6, VMware requires users to enter the root password to modify the GRUB boot menu options. Here you can find instructions on how to remove GRUB password. Continue reading “How to reset the root password on VCSA 6.x”
This article provides step-by-step instruction on how to break GRUB password on VMwre VCSA 6.x. Attach live Linux distro to the VCSA VM and boot the VM on the live Linux image. For the purpose of the manual, I use Knoppix v7.0.5. Continue reading “How to break GRUB password on VCSA 6.x”
In order to reset forgotten root password in VMware vCenter Appliance 6.5 do the following: Continue reading “How to reset forgotten root password in VMware vCenter Appliance 6.5”
When you try to log in on the domain (Active Directory) computer, you get an error “The trust relationship between this workstation and the primary domain failed“. Reason for this error is that either there is another computer with the same name that has been joined the same Active Directory, or computer account has not been used in long time, so the computer account password has expired. You can of course still disjoin computer from the AD and join it again, but there is more simple way and requires less administrative effort. Continue reading “How to reset computer account in Active Directory without disjoining computer from the AD”
To reset the domain admin password you will need physical access to the server or access to the virtual environment. In this example I will cover Windows 2012 procedure. Place installation DVD in your server or mount ISO file using your virtual machine settings. Continue reading “How to reset Active Directory domain administrator password”
First we need to boot into recovery mode. To do so, restart server and hold Shift down to call up the boot menu. Then select (recovery mode) for the image you are using. Once you get Recovery menu, select root and press Enter. You will be redirected to recovery console.
At this point we need to mount file system, since it is in RO (read-only) mode. To do so, type the following:
Continue reading “How to reset root password on Linux server”