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I was tinkering with the /etc/passwd file when accidentaly changed the root UID and GID. When I enter into the recovery mode, I still have no superuser powers, as any user exists on the passwd file with UID and GID 0. I read something about booting the pc from a live cd and mounting a partition, but I don't fully understand what does this mean. Maybe you can give me a solution and a link to a tutorial or just explain it here step by step. Thank you in advance :)
Something like this
– xenoid – 2017-06-27T08:23:12.493