💻 Software
Lost sudo/su on Amazon EC2 instance
Fresh5 days ago
Mar 15, 20267155 viewsConfidence Score0%
0%
Problem
I have an Amazon EC2 instance. I can login just fine, but neither "su" nor "sudo" work now (they worked fine previously): "su" requests a password, but I login using ssh keys, and I don't think the root user even has a password. "sudo " does this: I probably did "chown ec2-user /etc/sudoers" (or, m…
Error Output
sudo: /etc/sudoers is owned by uid 222, should be 0 sudo: no valid sudoers sources found, quitting
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Fix for: Lost sudo/su on Amazon EC2 instance
Low Risk
In that kind of situation I think you should be able to use a second instance to fix the problem: Detach the EBS disk containing the broken system Create another EC2 instance Attach & mount the disk to the new instance Fix the permissions Umount, de…
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