将EBS添加到Ubuntu EC2实例。

I'm having problem connecting EBS volume to my Ubuntu EC2 Instance.

我无法连接EBS卷到我的Ubuntu EC2实例。

Here's what I did:

这是我所做的:

From the Amazon AWS Console, I created a EBS 150GB volume and attached it to an Ubuntu 11.10 EC2 instance. Under the EBS volume properties, "Attachment" shows: "[my Ubuntu instance id]:/dev/sdf (attached)"

在Amazon AWS控制台，我创建了一个EBS 150GB的卷，并将它附加到一个Ubuntu 11.10 EC2实例上。在EBS卷属性下，“附件”显示:“(我的Ubuntu实例id):/dev/sdf(附加)”
Tried mounting the drive on the Ubuntu box, and it told me "mount: /dev/sdf is not a block device"

尝试在Ubuntu框上安装驱动器，它告诉我“安装:/dev/sdf不是块设备”

sudo mount /dev/sdf /vol

sudo /dev/sdf山/卷
So I checked with fdisk and tried to mount from the new location and it told me it wasn't the right file system.

所以我用fdisk检查并尝试从新的位置安装，它告诉我这不是正确的文件系统。

sudo fdisk -l

sudo fdisk - l

sudo mount -v -t ext4 /dev/xvdf /vol

sudo挂载-v -t ext4 /dev/xvdf /vol

the error:

错误:

mount: wrong fs type, bad option, bad superblock on /dev/xvdf, missing codepage or helper program, or other error In some cases useful info is found in syslog - try dmesg | tail or so

挂载:错误的fs类型、错误的选项、/dev/xvdf上的错误超块、丢失的代码页或辅助程序，或者在某些情况下在syslog中发现的其他错误——请尝试dmesg | tail之类的

"dmesg | tail" told me it gave the following error:

“dmesg | tail”告诉我它给出了以下错误:

EXT4-fs (sda1): VFS: Can't find ext4 filesystem

ext4 -fs (sda1): VFS:无法找到ext4文件系统。

I also tried putting the configurations into /etc/fstab file as instructed on http://www.webmastersessions.com/how-to-attach-ebs-volume-to-amazon-ec2-instance, but still gave same not the right file system error.

我还尝试按照http://www.webmastersessions.com/howto -attach- ebs-volumeto -amazon-ec2实例的指示，将配置放入/etc/fstab文件，但仍然给出了不正确的文件系统错误。

Questions:

问题:

Q1: Based on point 1 (above), why was the volume mapped to 'dev/sdf' when it's really mapped to '/dev/xvdf'?

Q1:基于点1(上面)，为什么当它被映射到'/dev/xvdf'时，它被映射到'dev/sdf' ?

Q2: What else do I need to do to get the EBS volume loaded? I thought it'll just take care of everything for me when I attach it to a instance.

问2:我还需要做什么才能装载EBS卷?我想当我把它附加到一个实例时，它会帮我处理所有的事情。

2 个解决方案

#1

322

Since this is a new volume, you need to format the EBS volume (block device) with a file system between step 1 and step 2. So the entire process with your sample mount point is:

由于这是一个新的卷，您需要在步骤1和步骤2之间使用文件系统格式化EBS卷(块设备)。所以你的样本安装点的整个过程是:

Create EBS volume.

创建EBS卷。
Attach EBS volume to /dev/sdf (EC2's external name for this particular device number).

将EBS卷附加到/dev/sdf(此特定设备号的EC2外部名称)。
Format file system /dev/xvdf (Ubuntu's internal name for this particular device number):

格式化文件系统/dev/xvdf (Ubuntu这个特定设备号的内部名称):
```
sudo mkfs.ext4 /dev/xvdf
```
Only format the file system if this is a new volume with no data on it. Formatting will make it difficult or impossible to retrieve any data that was on this volume previously.

只有当这是一个没有数据的新卷时才格式化文件系统。格式化将使以前检索这个卷上的任何数据变得困难或不可能。
Mount file system (with update to /etc/fstab so it stays mounted on reboot):

挂载文件系统(更新到/etc/fstab，使其在重新启动时保持挂载):
```
sudo mkdir -m 000 /vol
echo "/dev/xvdf /vol auto noatime 0 0" | sudo tee -a /etc/fstab
sudo mount /vol
```

#2

-2

Step 1: create volume
step 2: attach to your instance root volume
step 3: run sudo resize 2fs -p /dev/xvde
step 4: restart apache2 sudo service apache2 restart
step 4: run df -h

步骤1:创建卷步骤2:附加到实例根卷步骤3:运行sudo resize 2fs -p /dev/xvde步骤4:重启apache2 sudo服务apache2重启步骤4:运行df -h

You can see total volume attached to your instance.

您可以看到附加到实例的总容量。

#1

322