Sudo: /usr/bin/sudo must be owned by uid 0 and have setuid bit set

Question

Help I'm stuck. My login page was looping I checked online came here and most solutions didn't work for instance I didn't have the .Xauthority file listed when I ran the command ls -lah, so I stumbled on a solution which people said worked , chown -R $HOME:$HOME sudo so now if I type commands like ls -ld /usr /usr/bin I get drwxr-xr-x 10 Mickey Mickey and drwxr-xr-x 2 Mickey mickey, and my computer is in low graphics mode I can only access it through tty3. Please I don't want to loose my files.

Videonauth · Answer 1 · 2016-06-06T15:05:27.690

0

O.k. since you're able to TTY login do the following:

sudo chown -R <your-user-name>:<your-user-name> /home/<your-user-name>

After that make sure .Xauthority is renewed when you next log in delete it or rename it.

mv /home/<your-user-name>/<your-user-name>{,.disabled}

But if you're indeed changed the owner of all files around your computer to your user you might be better off, saving your files to an external drive and reinstalling since reworking the proper users would be a pain and give you for sure a big headache in the long run.

If you having troubles getting your files onto an other drive this way you as well can use a live USB/CD and choose try Ubuntu and go from there.

edited Jun 06 '16 at 15:05

answered Jun 06 '16 at 14:48

Videonauth

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I can't execute the first command it gives me the error I put as my topic – temiloluwa adesina Jun 06 '16 at 14:59
Added another option to at least get your hand onto your files, so you can backup and reinstall. – Videonauth Jun 06 '16 at 15:06
So I can use the second command to backup my files to my external hard drive ? – temiloluwa adesina Jun 06 '16 at 15:09
Please how can I back up my files from TTY login, thank you – temiloluwa adesina Jun 06 '16 at 15:18
No you have to boot as first from a live USB/CD and from there use a external drive to backup your data/files. the above commands only work if you messed up your own user directory, but as it looks now you're messed up your whole installation. See as well here http://askubuntu.com/questions/452860/usr-bin-sudo-must-be-owned-by-uid-0-and-have-the-setuid-bit-set?rq=1 – Videonauth Jun 06 '16 at 15:20
Can you still ls -a /home/<your-user-name>/ ? – Videonauth Jun 06 '16 at 15:23
But I only have an external hard drive so are you saying I can't back up now – temiloluwa adesina Jun 06 '16 at 15:24
Yes I can see files in my home dir – temiloluwa adesina Jun 06 '16 at 15:26
I didn't say you cant back up your files. – Videonauth Jun 06 '16 at 15:37
Oh okay , please how can I do that using only an external hard drive – temiloluwa adesina Jun 06 '16 at 15:38

Sudo: /usr/bin/sudo must be owned by uid 0 and have setuid bit set

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