EC2小到微实例降级问题

Question

有一些应用程序,EC2小实例,太大了.因此,微型实例的宣布正是医生所要求的.

我想获取一个小实例的EBS卷,将其分离,并将其与微实例配对.在某些时候,走另一条路并将微型实例升级到小型或更高级别可能会很棒.

对于这个失败的实验,我试过:

1. 使用Alestic Ubuntu 10.04 32位AMI(ami-1234de7b)创建一个新的小实例.靴子就像一个魅力.
2. 关闭我刚刚铸造的微型实例,分离在上一步中为我创建的音量.
3. 将小实例的卷附加到微实例.
4. 充电.
5. 纳达.

奇怪的是,在我断电之前没有控制台日志输出.然后我看到了一切.

[    0.000000] Reserving virtual address space above 0xf5800000
[    0.000000] Initializing cgroup subsys cpuset
[    0.000000] Initializing cgroup subsys cpu
...
[    1.221261] VFS: Mounted root (ext3 filesystem) readonly on device 8:1.
[    1.221261] VFS: Mounted root (ext3 filesystem) readonly on device 8:1.
[    1.222164] devtmpfs: mounted
[    1.222202] Freeing unused kernel memory: 216k freed
[    1.223409] Write protecting the kernel text: 4328k
[    1.223760] Write protecting the kernel read-only data: 1336k
init: console-setup main process (63) terminated with status 1
%Ginit: plymouth main process (45) killed by SEGV signal
init: plymouth-splash main process (196) terminated with status 2
cloud-init running: Thu, 09 Sep 2010 17:37:54 +0000. up 2.61 seconds
mountall: Disconnected from Plymouth
init: hwclock-save main process (291) terminated with status 1
Checking for running unattended-upgrades:  * Asking all remaining processes to terminate...       
[80G 
[74G[ OK ]
 * All processes ended within 1 seconds....       
[80G 
[74G[ OK ]
 * Deconfiguring network interfaces...       
[80G 
[74G[ OK ]
 * Deactivating swap...       
[80G 
[74G[ OK ]
 * Unmounting local filesystems...       
[80G 
[74G[ OK ]
 * Will now halt
[  185.599636] System halted.

这种交换方法在过去相同大小的实例之间运行良好,这是我第一次尝试在不同大小之间进行此操作.这是不可能的,还是我错过了EC2知识的基本内容？

Answer 1

即使这可能会迁移到服务器故障,我今天早些时候遇到了与此实例完全相同的问题.

看来这个图像假设存在短暂存储,当微实例上没有时.要解决此问题,请在/ etc/fstab中注释掉以下行:

/dev/sda2   /mnt    auto    defaults,comment=cloudconfig    0   0

这应该可以防止实例在启动时挂起,或者至少它对我来说是ami-1234de7b.