安装了 MAAS 1.7 并成功部署了几个 Trusty 镜像；但是，无法部署任何 utopic 镜像。通过以下方式添加了 utopic 存储库http://maas.ubuntu.com/docs/bootsources.html，现在我的启动源如下所示：
$ maas maas17 boot-sources read $CLUSTER_UUID
[
{
"url": "http://maas.ubuntu.com/images/ephemeral-v2/daily/",
"keyring_data": "",
"resource_uri": "/MAAS/api/1.0/boot-sources/1/",
"keyring_filename": "/usr/share/keyrings/ubuntu-cloudimage-keyring.gpg",
"id": 1
}
]
在部署期间，选择了 utopic 图像，我得到以下信息：
...
Gave up waiting for root device. Common problems:
- Boot args (cat /proc/cmdline)
- Check rootdelay= (did the system wait long enough?)
- Check root= (did the system wait for the right device?)
- Missing modules (cat /proc/modules; ls /dev)
ALERT! /dev/disk/by-path/ip-10.0.0.17:3260-iscsi-iqn.2004-05.com.ubuntu:maas:ephemeral-ubuntu-amd64-generic-utopic-daily-lun-1 does not exist. Dropping to a shell!
BusyBox v1.22.1 (Ubuntu 1:1.22.0-8ubuntu1) built-in shell (ash)
Enter 'help' for a list of built-in commands.
(initramfs) [ 99.600706] random: nonblocking pool is intialized
对于如何部署 utopic 镜像，您有什么想法吗？
谢谢，
编辑 1：似乎是一个已知问题https://bugs.launchpad.net/maas/+bug/1391354 编辑2：目前，解决方法是不要使用“使用快速安装程序”选项进行部署。