Is my Amazon EC 2 running Amazon Linux or Ubuntu?

问题:

I am a little confused here. I created a Amazon EC2 instance with Ubuntu Linux 64-bit 12.04 LTS, now when I SSH into it I get the following

but on Amazon Management console I get the following

What is wrong here?

回答1:

This is definitely Amazon Linux (CentOS based), not Ubuntu. Another hint is that the default username in Amazon Linux is usually "ec2-user" while in Ubuntu it is "ubuntu" (at least if you use the default stock AMI). I don't know how it can be different from what you selected when you created it, but I guess it's either a human error or a weird bug.

Edit: For the record, the problem was that he was using an old EBS volume (which had Amazon AMI) as root volume.

回答2:

ami-acf6b0fe is indeed an official Ubuntu 12.04 LTS Precise AMI in Amazon EC2's ap-southeast-1 (Singapore) region.

The welcome message you list is indeed for Amazon Linux.

This means that the EC2 instance listed in your AWS console is not the EC2 instance you are connecting to with ssh.

You should double check IP addresses, hostnames, instance ids, AWS accounts, and EC2 regions.