Linux – Fixing Error sudo: /usr/bin/sudo must be owned by uid.
Here is another interesting issue I had to solve very recently. If you have ever used a linux based operating system like Ubuntu, I assume you have had run into problems which happens suddenly, and you have no idea what caused it :)This is the error I got,
sudo: /usr/bin/sudo must be owned by uid 0 and have the setuid bit set
Now I’m going to tell you how I got the above error and how I fixed it.
I searched in many forums about this, and I found that there are two reasons for getting this error.
01. Directory “/usr/bin/sudo“ is not having permission 755. This happens if you run a command like “sudo chmod –R 777 /usr/” - which will set the permission to 777 for all the directories recursively.
My issue was due to reason 01, and I solved it by following the below steps.
First restart your pc, and press the SHIFT key while Ubuntu is booting.
This will bring you up the boot menu.
Select Advanced Options.
Select your OS version in (recovery mode), and press Enter Key.
Ex : Ubuntu 14.04 (recovery mode)
It will bring you up another screen. Now select “Drop to root shell prompt” and press Enter.
It will load a command line at the bottom of the screen.
Now run each of the following commands.
mount -o remount,rw /
mount --all
chown root:root /usr/bin/sudo
chmod 4755 /usr/bin/sudo
restart
Now your pc will restart. Once you log in, you will find that you can use the sudo command again :)
Please leave a comment if this worked for you.
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It worked for me...Thanks...
ReplyDeleteI'm glad to hear that S@C|-|!/\/. Thanks for the feedback! appreciate it.
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Didnt work for me
ReplyDeleteIs this the same error you are getting? If you follow the above steps correctly, it should solve the issue. But if not, maybe the issue you have is different. Please let me know after you tried it again..thank you for taking time to leave feedback.
ReplyDeleteIt works. Very Good.
ReplyDeleteThanks for the feedback Anonymous...I'm glad it worked for you..
DeleteThanks brother, it works for me
ReplyDeleteHi Rio Oktafianto, Thank you very much for the feedback. I'm glad it helped :)
Deletehy guys,
ReplyDeleteit didn't work fo me,
i only change chmod 777 directory /usr/bin/ , then i follow the above steps. untill restart, but still didn't work.
Any suggestion for me?
Did you find the solution? I changed the permission of /usr/bin and now cannot resolve
DeleteHi,
ReplyDeleteThanks, worked fine for me.
You are welcome..Thanks for the feedback :)
DeleteHi Thanks..
ReplyDeleteWorked for me..
Thanks for the feedback Anupama.
DeleteThis comment has been removed by the author.
ReplyDeleteI removed this comment as I was doing one silly mistake while following your steps.
DeleteIt worked. Thanks.
ReplyDeleteIt worked for me, thank you!
ReplyDeleteThank you.. It was helpfull.. :)
ReplyDeletemine never worked.instead of the pc restarting it brings an error that it failed to disable graphics turbo
ReplyDeleteHi Herman Musungu, are you sure that this is the same error you've been getting? and have you followed the given codes as it is? It has worked for many. Please see the above comments. I cannot guarantee it to work, but it's really sad to hear that it didn't work for you.
DeleteI was lost 3 hour to find problem this. Thank you so much.
ReplyDeleteNot work for me :-(
ReplyDeleteWorked great. For some reason had to follow ALL the instructions though. Go figure :-)
ReplyDeleteIt really works! Thumbs Up!! I have fixed this issue on my computer and of my friend's too.. by following your steps and it worked like a charm!
ReplyDeleteThanks a lot, one important thing:
If anyone can't go to the Recovery mode easily just Turn off your computer and then Start it again.
After getting BIOS loaded (just before the ubuntu logo) press SHIFT Key and then Select "Advance option" then "Recovery Mode" ...
thank you very much buddy it worked for me on Ubuntu 15.10
ReplyDeleteIt's work for me but when I log-in to ubuntu about 1minute it back to login page. I don't know why.
ReplyDeleteThank you so much buddy.... it worked for me on Ubuntu 16.04
ReplyDeletethank so much, buddy. You save my day.
ReplyDeletetks! It's work for me
ReplyDeleteWorked for me too! :)
ReplyDeletePretty easy to do and worked well. Thank you.
ReplyDeleteThank you guy for help, it's work very well.
ReplyDeleteThanks a lot for the post! What does each of the commands do?
ReplyDelete```mount -o remount,rw /
mount --all
chown root:root /usr/bin/sudo
chmod 4755 /usr/bin/sudo
restart```
Hey anon, thanks for asking. It's not doing much of a complicated thing. First it remounts the root (/) with read & write access on to the root of the file system. Then with mount --all, it mounts all of the mount points given in the fstab. After that you simply change the owner of the /usr/bin/sudo back to root and set it's permissions :) restart will take you back to the boot process where you can log in normally. Hope its clear.
DeleteThanks man, it worked for me !!!!
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Fantastic it,s working
ReplyDeleteThank you very much for sharing this info, works on ubuntu 17.0
ReplyDeleteMerci la solution marche pour moi
ReplyDeleteThis comment has been removed by the author.
ReplyDeleteI'm using Ubuntu 18.04 and my problem was due to case 2 where I changed permission on /var/lib. You saved my ass. Thanks
ReplyDeleteIt replied:
ReplyDeletemount_apfs: unrecognized option 'remount'
mount_apfs: [-o options] [-u UID] [-g GID] [-c [-r] | [-C|-F ]] [-s snapshot]
Ora freezer on restart processo?
ReplyDeleteThanks. It worked for me. My problem was due to case 1. You saved me from reinstall the whole virtual Ubuntu.
ReplyDeleteThis comment has been removed by the author.
ReplyDeleteIt worked to me. I changed permissions with chmod 4755 and all just turned back and is running well again. I ran that chmod -R 777 you said because there was some installation that needed to overwrite some folders in /usr and it wasn't granted to do that. I couldn't even log in as root user! Thank you so much!
ReplyDeleteGreat
ReplyDeleteThank you for your explanation. Above solution worked for me but I have executed one more command because I was not able to access sudo command from terminal.
ReplyDeletechmod 644 /usr/lib/sudo/sudoers.so
You saved my life!
ReplyDeleteThanks.
ReplyDeleteIt works for me.
se il comando shift non funziona provate con esc.
ReplyDeleteHa funzionato per me.
Hey thanks a lot its works for me
ReplyDeletemount: only root can use "--options" option
ReplyDeleteiam getting this error
It worked. saved my life, thanks!
ReplyDeleteWill this delete the data on computer ?
ReplyDeletesame question
DeleteNo, still the same
DeleteHi, i want to change all files in a specific directory for this i used below command
ReplyDeletesudo find /everglitz.in -type f -exec chmod 664 {} \;
sudo: /usr/bin/sudo must be owned by uid 0 and have the setuid bit set
But i unable to resolve can u please help me
Funcionou aqui...muito obrigado!!!
ReplyDeleteWorked for me too. Thanks!!
ReplyDeleteWill this work for ubuntu 18.04 ?
ReplyDeleteFuncionou certinhoo, valeu!
ReplyDeleteIt works for me in Ubuntu 16.04, but I don't remember the root password, so I login as root using the info here https://linuxconfig.org/how-to-reset-lost-root-password-on-ubuntu-16-04-xenial-xerus-linux#h5-reboot-system and run the code that's in this post. Thank you.
ReplyDeleteThis doesn't work to me 😢
ReplyDeletewill this flash data from hard drive?
ReplyDeleteIt worked for me...Thanks...
ReplyDeleteThanksss bro
ReplyDeleteThank you. It works for me. :)
ReplyDeleteIt works for me. Thank you
ReplyDeleteIt works for me. Great !
ReplyDeleteThank you
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Thank you,it worked
ReplyDeleteit worked!! thank youuuu :)
ReplyDeleteIt works! Thank you.
ReplyDeleteMy distro is linux mint 18.1.
The difference is replacing restart by reboot :D
Thank You so Much
ReplyDeleteI havent run any chmod commands.. But still I am facing the error.. Please help
ReplyDeleteit still work, thank you so much bruh!!!!!!!!
ReplyDeleteI can't enter boot setup and i get this error after trying to update grub (so i can get to boot up my windows)
ReplyDeleteAny other ways to solve it?
yes this worked perfectly. thank you. someday i will know what im doing... hopefully
ReplyDeleteThanks. it worked!
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