經過圖形界面「虛擬機管理器」添加虛擬磁盤
vim
2.字符界面:centos
添加一塊qcow2bash
[root@localhost ~]# qemu-img create -f qcow2 kvm-clone.qcow2 2G Formatting 'kvm-clone.qcow2', fmt=qcow2 size=2147483648 encryption=off cluster_size=65536
在配置文件添加磁盤:ide
[root@localhost ~]# virsh edit centos-virt-clone virsh edit centos-virt-clone <disk type='file' device='disk'> <driver name='qemu' type='qcow2' cache='none'/> <source file='/root/kvm-clone-add.qcow2' /> <target dev='vdb' bus='virtio'/> </disk>
開啓虛擬機,發生錯誤:rest
[root@localhost ~]# virsh start centos-virt-clone 錯誤:開始域 centos-virt-clone 失敗 錯誤:internal error Process exited while reading console log output: char device redirected to /dev/pts/2 2015-02-02T11:13:45.039620Z qemu-kvm: -drive file=/root/kvm-clone.qcow2,if=none,id=drive-virtio-disk3,format=qcow2,cache=none: could not open disk p_w_picpath /root/kvm-clone.qcow2: Permission denied
重啓「libvirtd」orm
vim /etc/libvir user = "root" # The group for QEMU processes run by the system instance. It can be # specified in a similar way to user. group = "root" dynamic_ownership = 0 [root@localhost ~]# /etc/init.d/libvirtd restart
開啓虛擬機:blog
[root@localhost ~]# virsh start centos-virt-clone 域 centos-virt-clone 已開始
3.在線添加虛擬磁盤:ip
virsh attach-disk oeltest02 /data/test02_add01.qcow2 sdb --cache=none --subdriver=qcow2
查看磁盤分區:ci