how to recover root password
1. reboot system
under GRUB, press ', choose kernel, press ?again, 
choose the kernerl line and press to edit it. 
in the final of the line, press space and type in ?' 
(single?or ?can also work here).
press enter, then press b to boot
2. after boot , passwd, change the password, reboot then ok.

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I am an IT specialist with over 10 year experience - years on Automation, on-Premise or Azure.

I am happy to develop however never want be a full time developer. Only do what I have to do. If it has to be PowerShell,HTML, PHP, CSS, C#, VBS or JS, front end or backend, so be it, doesn't matter!

Spent years with Windows, SCCM, SharePoint, SQL and Exchange servers. For last several years, I have been actively working under On Premise > Azure environment.

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