依上,解释-u参数,当指定-b backing file时,当不使用-u参数时,backing file会被打开验证文件是否合法;当使用-u参数时,表示开启了unsafe backing file mode模式,意味着甚至当backing file文件不予指定时,也可以create一个基于不存在backing file(只是指定文件名,该文件可以不存在)的img文件,但a matching backing fil...
使用qemu-img create -f qcow2 -b cirros.qcow2 vmhost.img 20G创建虚拟机磁盘出现以下报错,报错内容:qemu-img: vmhost.img: Backing file specified without backing format Detected format of qcow2. [root@ecs images]# qemu-img create -f qcow2 -b cirros.qcow2 vmhost.img 20G qemu-img: vmhost...
# 基于backing_file创建大小为20G的镜像, 使用-b参数, -F用于指定backing_file的格式 qemu-img create -F qcow2 -b /path/to/backing-kvm.img -f qcow2 /path/to/target.qcow2 20G # 基于backing_file创建大小为20G的镜像, 使用-o参数, 都在-o参数内指定 qemu-img create -f qcow2 -o backing_f...
[root@localhost ~]# qemu-img create /root/test/diff2.img -b /root/test/diff1.img -f qcow2 Formatting '/root/test/diff2.img', fmt=qcow2 size=10737418240 backing_file='/root/test/diff1.img' encryption=off cluster_size=65536 lazy_refcounts=off [root@localhost ~]# qemu-img info /ro...
qemu-img create -f qcow2 -o backing_file=rhel6u3.img,size=20G rhel6u3-2.qcow2 qemu-img create -f qcow2 ubuntu.qcow2 10G 3、convert [-c] [-f fmt] [-O output_fmt] [-o options] filename output_filename #将fmt格式的filename镜像文件根据options选项转换为格式为output_fmt的名为outpu...
qemu-imgcreate创建磁盘 qemu-img⼯具是qemu软件的⼀部分，更加详细的使⽤wiki可以参考qemu官⽹，以下在pve下操作，⾸先查看man qemu-img，如下：注意size 默认单位为byte，⽐如size为10 表⽰⽂件⼤⼩10byte 10M表⽰⽂件⼤⼩10M 依上，解释-u参数，当指定-b backing file时，当不使...
$ sudo qemu-img create -f qcow2 -b /guests/F21server.img /guests/F21server.qcow2.snap Formatting '/guests/F21server.qcow2.snap', fmt=qcow2 size=21474836480 backing_file='/guests/F21server.img' encryption=off cluster_size=65536 lazy_refcounts=off ...
Line 1683 (after edit): command = [qemu_img_path, "create", "-o", "backing_file={}".format(disk_image), "-f", "qcow2", "-F", "qcow2", disk] See that "-F", "qcow2",? It makes the trick. I should warn you, all my images are qcow2, so it's quite safe for me ...
When running vagrant package it seems like qemu-img is doing rebase but with empty backing file. Moreover it looks likebackingvariable is not used at all, thus it causes error. https://github.com/pradels/vagrant-libvirt/blame/master/lib/vagrant-libvirt/action/package_domain.rb#L37 ...
对create命令的演⽰如下所⽰，其中包括查询qcow2格式⽀持的选项、创建有backing_file的qcow2格式的镜像⽂件、创建没有backing_file 的10GB⼤⼩的qcow2格式的镜像⽂件。[root@jay-linux kvm_demo]# qemu-img create -f qcow2 -o ? temp.qcow Supported options:size Virtual disk size compat ...