Eric H. Johnson on 30 Jan 2017 14:35:52 -0800

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[PLUG] Adding admin account back to sudoers

Hi all,


This happened to me the last time I ported accounts to a new machine, and I cannot figure out what I did to fix it. Both the old and new machines are running Ubuntu 16.04. After porting all of the user accounts to the new computer, I lost the use of sudo in the administrator account. If I try to use sudo, I get the error that the account is not in sudoers. I booted to recovery mode, mounted the drive read/write, and tried:


adduser administrator sudo


Which said “administrator is already a member of the sudo group”.


I checked /etc/sudoers, and it agrees with what my source ( says it should say.


Another source said to try:


sudo usermod –a –G sudo administrator


The command ran without error, but did not fix the problem.


Any ideas?





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