Error after sudo-ing "sudo: must be setuid root"

Posted by Kaustubh P on Ask Ubuntu See other posts from Ask Ubuntu or by Kaustubh P
Published on 2011-01-17T06:30:53Z Indexed on 2011/01/17 6:59 UTC
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On a colleagues computer, everytime I use a sudo command, I get this error:

sudo: must be setuid root

I tried various things mentioned on the internet, like changing the permissions to 4755 from a live cd, but even this command from a live-cd

sudo chmod 4755 /media/device/usr/bin/sudo

gives the same error.

EDIT: The colleague told me that he executed this command, god knows why :/

sudo chmod -R 777 / or sudo chmod -R 777 He isnt exactly sure.

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