openStack images概念及维护

更改以创建镜像的属性　　glance image-update img-uuid --property architecture=arm --property
hypervisor_type=qemu

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canonical maintain

gunzip -cd  windows_server_2012_r2_standard_eval_hyperv_20131031.vhd.gz | \

glance image-create --property hypervisor_type=hyperv --name "Windows Server 2012 R2 Std Eval" \

--container-format bare --disk-format vhd

 

 auto_disk_config=True is set as a property on the image in the image registry  (Compute service automatically adjusts the partition
and file system for your instance on boot)

 

sudo yum install libguestfs-tools

On Debian/Ubuntu:

sudo apt-get install libguestfs-tools

Open a disk image:

guestfish --ro -i -a disk.img

1, use `qemu-img` create empty image
qemu-img create -f qcow2 /data/ruiy-centos-6.4.qcow2 15G

2, use virt-install start up a virtual machine 

显示虚拟机的vnc
virsh vncdisplay VMI_id

permission defined
权限对ssh password less的正确配置是至关重要的
一般~/.ssh/下的所有文件的权限为700
~/.ssh的上一级目录的权限为751
如果权限配置不正确,你的ssh password less是搞不定 的!