我有点糊涂了这里。我创建了一个Amazon EC2实例在Ubuntu Linux 64位12.04 LTS，现在当我SSH到它，我得到以下

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

但在亚马逊管理控制台我得到以下

but on Amazon Management console I get the following

什么是错在这里？

推荐答案

这绝对是亚马逊的Linux操作系统（基于CentOS的），而不是Ubuntu的。另一个线索是，在亚马逊的Linux默认的用户名通常是EC2用户，而在Ubuntu是（至少如果你使用默认的股票AMI）Ubuntu的。我不知道怎么会这样，从当你创建它是你选择的不同，但我想这是任何一个人为错误或一个奇怪的问题。

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.

修改：为了记录在案，问题是，他使用的是旧EBS卷（其中有亚马逊AMI）作为根卷

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