Add user to sudoers again
Xen
list at xenhideout.nl
Wed Apr 12 16:52:55 UTC 2017
Enrique Villalobos schreef op 12-04-2017 17:58:
> Hello,
>
> I run this command:
>
> sudo usermod -G www-data myuser
>
> I forgot the "-a":
>
> sudo usermod -a -G www-data myuser
>
> Now myuser is not a sudoer so I can't add it to sudoers and I have no
> root password since I never needed it before.
>
> Can it be fixed somehow?
Depending on what still works these days you can also:
in the Grub prompt, add "init=/bin/bash" to the kernel command line
parameters (the line that also says quiet or splash or whatever,
vmlinuz)
then the system boots but not much will work. You get a root prompt. You
have to change the filesystem to read-write first:
# mount -o rw,remount /
Then you can simply run passwd for your root user
# passwd
After that you can reboot and login to root with the new password and
fix it.
Regards.
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