{"id":42946,"date":"2024-10-04T10:26:28","date_gmt":"2024-10-04T02:26:28","guid":{"rendered":"https:\/\/server.hk\/cnblog\/42946\/"},"modified":"2024-10-04T10:26:28","modified_gmt":"2024-10-04T02:26:28","slug":"centos-7-2-%e4%b8%8b-kvm-%e8%99%9b%e6%93%ac%e5%8c%96%e9%85%8d%e7%bd%ae%e4%bb%a5%e5%8f%8a%e5%b8%b8%e7%94%a8%e6%93%8d%e4%bd%9c","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/42946\/","title":{"rendered":"CentOS 7.2 \u4e0b KVM \u865b\u64ec\u5316\u914d\u7f6e\u4ee5\u53ca\u5e38\u7528\u64cd\u4f5c"},"content":{"rendered":"<h1 id=\"centos-7-2-%e4%b8%8b-kvm-%e8%99%9b%e6%93%ac%e5%8c%96%e9%85%8d%e7%bd%ae%e4%bb%a5%e5%8f%8a%e5%b8%b8%e7%94%a8%e6%93%8d%e4%bd%9c-HtIwzFHwTB\">CentOS 7.2 \u4e0b KVM \u865b\u64ec\u5316\u914d\u7f6e\u4ee5\u53ca\u5e38\u7528\u64cd\u4f5c<\/h1>\n<p>\u96a8\u8457\u865b\u64ec\u5316\u6280\u8853\u7684\u5feb\u901f\u767c\u5c55\uff0cKVM\uff08Kernel-based Virtual Machine\uff09\u6210\u70ba\u4e86\u8a31\u591a\u4f3a\u670d\u5668\u7ba1\u7406\u8005\u7684\u9996\u9078\u3002KVM \u662f\u4e00\u7a2e\u958b\u6e90\u865b\u64ec\u5316\u6280\u8853\uff0c\u80fd\u5920\u5c07 Linux \u5167\u6838\u8f49\u8b8a\u70ba\u4e00\u500b\u865b\u64ec\u6a5f\u76e3\u63a7\u5668\uff08Hypervisor\uff09\u3002\u5728\u9019\u7bc7\u6587\u7ae0\u4e2d\uff0c\u6211\u5011\u5c07\u63a2\u8a0e\u5982\u4f55\u5728 CentOS 7.2 \u4e0a\u914d\u7f6e KVM \u865b\u64ec\u5316\u4ee5\u53ca\u4e00\u4e9b\u5e38\u7528\u64cd\u4f5c\u3002<\/p>\n<h2 id=\"%e4%b8%80%e3%80%81%e7%92%b0%e5%a2%83%e6%ba%96%e5%82%99-HtIwzFHwTB\">\u4e00\u3001\u74b0\u5883\u6e96\u5099<\/h2>\n<p>\u5728\u958b\u59cb\u4e4b\u524d\uff0c\u78ba\u4fdd\u4f60\u7684\u4f3a\u670d\u5668\u652f\u6301\u865b\u64ec\u5316\u6280\u8853\u3002\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\u6aa2\u67e5 CPU \u662f\u5426\u652f\u6301\u865b\u64ec\u5316\uff1a<\/p>\n<pre><code>egrep -c '(vmx|svm)' \/proc\/cpuinfo<\/code><\/pre>\n<p>\u5982\u679c\u8fd4\u56de\u7684\u6578\u5b57\u5927\u65bc 0\uff0c\u5247\u8868\u793a\u652f\u6301\u865b\u64ec\u5316\u3002\u63a5\u4e0b\u4f86\uff0c\u66f4\u65b0\u7cfb\u7d71\u4e26\u5b89\u88dd\u5fc5\u8981\u7684\u8edf\u4ef6\u5305\uff1a<\/p>\n<pre><code>yum update -y\nyum install -y qemu-kvm libvirt libvirt-python libguestfs-tools virt-install<\/code><\/pre>\n<h2 id=\"%e4%ba%8c%e3%80%81%e5%95%9f%e7%94%a8%e5%92%8c%e9%85%8d%e7%bd%ae-libvirt-HtIwzFHwTB\">\u4e8c\u3001\u555f\u7528\u548c\u914d\u7f6e Libvirt<\/h2>\n<p>\u5b89\u88dd\u5b8c\u6210\u5f8c\uff0c\u555f\u7528\u4e26\u555f\u52d5 Libvirt \u670d\u52d9\uff1a<\/p>\n<pre><code>systemctl start libvirtd\nsystemctl enable libvirtd<\/code><\/pre>\n<p>\u63a5\u4e0b\u4f86\uff0c\u6aa2\u67e5 Libvirt \u662f\u5426\u6b63\u5e38\u904b\u884c\uff1a<\/p>\n<pre><code>systemctl status libvirtd<\/code><\/pre>\n<h2 id=\"%e4%b8%89%e3%80%81%e5%89%b5%e5%bb%ba%e8%99%9b%e6%93%ac%e6%a9%9f-HtIwzFHwTB\">\u4e09\u3001\u5275\u5efa\u865b\u64ec\u6a5f<\/h2>\n<p>\u4f7f\u7528 <code>virt-install<\/code> \u547d\u4ee4\u4f86\u5275\u5efa\u865b\u64ec\u6a5f\u3002\u4ee5\u4e0b\u662f\u4e00\u500b\u5275\u5efa\u865b\u64ec\u6a5f\u7684\u7bc4\u4f8b\u547d\u4ee4\uff1a<\/p>\n<pre><code>virt-install \n--name myvm \n--ram 2048 \n--disk path=\/var\/lib\/libvirt\/images\/myvm.img,size=20 \n--vcpus 2 \n--os-type linux \n--os-variant centos7.0 \n--network network=default \n--graphics none \n--location 'http:\/\/mirror.centos.org\/centos\/7\/os\/x86_64\/' \n--extra-args 'console=ttyS0,115200n8 serial'<\/code><\/pre>\n<p>\u9019\u500b\u547d\u4ee4\u5c07\u5275\u5efa\u4e00\u500b\u540d\u70ba <code>myvm<\/code> \u7684\u865b\u64ec\u6a5f\uff0c\u5206\u914d 2GB \u7684\u5167\u5b58\u548c 20GB \u7684\u78c1\u789f\u7a7a\u9593\uff0c\u4e26\u4f7f\u7528 CentOS 7 \u7684\u5b89\u88dd\u6620\u50cf\u3002<\/p>\n<h2 id=\"%e5%9b%9b%e3%80%81%e7%ae%a1%e7%90%86%e8%99%9b%e6%93%ac%e6%a9%9f-HtIwzFHwTB\">\u56db\u3001\u7ba1\u7406\u865b\u64ec\u6a5f<\/h2>\n<p>\u5275\u5efa\u865b\u64ec\u6a5f\u5f8c\uff0c\u53ef\u4ee5\u4f7f\u7528 <code>virsh<\/code> \u547d\u4ee4\u4f86\u7ba1\u7406\u865b\u64ec\u6a5f\u3002\u4ee5\u4e0b\u662f\u4e00\u4e9b\u5e38\u7528\u7684 <code>virsh<\/code> \u547d\u4ee4\uff1a<\/p>\n<ul>\n<li><code>virsh list --all<\/code>\uff1a\u5217\u51fa\u6240\u6709\u865b\u64ec\u6a5f\u3002<\/li>\n<li><code>virsh start myvm<\/code>\uff1a\u555f\u52d5\u865b\u64ec\u6a5f\u3002<\/li>\n<li><code>virsh shutdown myvm<\/code>\uff1a\u95dc\u9589\u865b\u64ec\u6a5f\u3002<\/li>\n<li><code>virsh destroy myvm<\/code>\uff1a\u5f37\u5236\u95dc\u9589\u865b\u64ec\u6a5f\u3002<\/li>\n<li><code>virsh console myvm<\/code>\uff1a\u9023\u63a5\u5230\u865b\u64ec\u6a5f\u7684\u63a7\u5236\u53f0\u3002<\/li>\n<\/ul>\n<h2 id=\"%e4%ba%94%e3%80%81%e8%99%9b%e6%93%ac%e6%a9%9f%e7%9a%84%e5%bf%ab%e7%85%a7%e7%ae%a1%e7%90%86-HtIwzFHwTB\">\u4e94\u3001\u865b\u64ec\u6a5f\u7684\u5feb\u7167\u7ba1\u7406<\/h2>\n<p>\u5feb\u7167\u662f\u865b\u64ec\u6a5f\u7684\u4e00\u500b\u91cd\u8981\u529f\u80fd\uff0c\u53ef\u4ee5\u5728\u7279\u5b9a\u6642\u9593\u9ede\u4fdd\u5b58\u865b\u64ec\u6a5f\u7684\u72c0\u614b\u3002\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\u5275\u5efa\u5feb\u7167\uff1a<\/p>\n<pre><code>virsh snapshot-create-as myvm snapshot1 \"Snapshot description\"<\/code><\/pre>\n<p>\u8981\u5217\u51fa\u865b\u64ec\u6a5f\u7684\u5feb\u7167\uff0c\u53ef\u4ee5\u4f7f\u7528\uff1a<\/p>\n<pre><code>virsh snapshot-list myvm<\/code><\/pre>\n<p>\u6062\u5fa9\u5230\u67d0\u500b\u5feb\u7167\u7684\u547d\u4ee4\u5982\u4e0b\uff1a<\/p>\n<pre><code>virsh snapshot-revert myvm snapshot1<\/code><\/pre>\n<h2 id=\"%e7%b8%bd%e7%b5%90-HtIwzFHwTB\">\u7e3d\u7d50<\/h2>\n<p>\u5728 CentOS 7.2 \u4e0a\u914d\u7f6e KVM \u865b\u64ec\u5316\u662f\u4e00\u500b\u76f8\u5c0d\u7c21\u55ae\u7684\u904e\u7a0b\uff0c\u901a\u904e\u4e0a\u8ff0\u6b65\u9a5f\uff0c\u4f60\u53ef\u4ee5\u8f15\u9b06\u5730\u5275\u5efa\u548c\u7ba1\u7406\u865b\u64ec\u6a5f\u3002KVM \u7684\u9748\u6d3b\u6027\u548c\u9ad8\u6548\u6027\u4f7f\u5176\u6210\u70ba\u8a31\u591a\u4f01\u696d\u548c\u958b\u767c\u8005\u7684\u7406\u60f3\u9078\u64c7\u3002\u5982\u679c\u4f60\u6b63\u5728\u5c0b\u627e\u9ad8\u6548\u7684 <a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a> \u89e3\u6c7a\u65b9\u6848\uff0cServer.HK \u63d0\u4f9b\u591a\u7a2e\u9078\u64c7\uff0c\u6eff\u8db3\u4e0d\u540c\u9700\u6c42\u7684\u7528\u6236\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Learn how to configure KVM virtualization on CentOS 7.2 and explore essential operations for efficient management and deployment.<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[4924],"tags":[],"class_list":["post-42946","post","type-post","status-publish","format-standard","hentry","category-setup-tutorials"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/42946","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/comments?post=42946"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/42946\/revisions"}],"predecessor-version":[{"id":42947,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/42946\/revisions\/42947"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=42946"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=42946"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=42946"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}