{"id":537,"date":"2018-09-14T07:53:51","date_gmt":"2018-09-13T23:53:51","guid":{"rendered":"https:\/\/ihongchao.com\/?p=537"},"modified":"2018-10-12T10:52:16","modified_gmt":"2018-10-12T02:52:16","slug":"linux-centos-7-x-%e5%a6%82%e4%bd%95%e4%bf%ae%e6%94%b9%e5%86%85%e6%a0%b8%e5%90%af%e5%8a%a8%e9%bb%98%e8%ae%a4%e9%a1%ba%e5%ba%8f","status":"publish","type":"post","link":"https:\/\/ihongchao.com\/post\/537\/","title":{"rendered":"Linux CentOS 7.X \u5982\u4f55\u4fee\u6539\u5185\u6838\u542f\u52a8\u9ed8\u8ba4\u987a\u5e8f"},"content":{"rendered":"<p>\u6211\u4eec\u77e5\u9053\uff0ccentos 6.x\u662f\u901a\u8fc7\/etc\/grub.conf\u5c31\u884c\u5185\u6838\u542f\u52a8\u987a\u5e8f\u4fee\u6539\u7684\uff0c\u800c\u4e14\u6bd4\u8f83\u76f4\u89c2\u67e5\u770b\u3002\u4f46centos 7\u7684\u7cfb\u7edf\u548c6\u5c31\u4e0d\u4e00\u6837\u4e86\uff0c\u662f\u901a\u8fc7grub2\u4e3a\u5f15\u5bfc\u7a0b\u5e8f\u3002\u4e0b\u8fb9\u7b80\u5355\u8bf4\u4e0bcentos 7\u7684\u5185\u6838\u542f\u52a8\u987a\u5e8f\u5982\u4f55\u4fee\u6539\u3002<br \/>\n<strong>1\uff0c\u9996\u5148\u67e5\u770b\u5f53\u524d\u7cfb\u7edf\u6709\u51e0\u4e2a\u5185\u6838<\/strong>\u3002\u6bd4\u5982\uff1a<\/p>\n<pre class=\"lang:sh decode:true\">[root@local ~]# cat \/boot\/grub2\/grub.cfg |grep menuentry\r\n \r\nif [ x\"${feature_menuentry_id}\" = xy ]; then\r\n  menuentry_id_option=\"--id\"\r\n  menuentry_id_option=\"\"\r\nexport menuentry_id_option\r\nmenuentry 'CentOS Linux (4.18.7-1.el7.elrepo.x86_64) 7 (Core)' --class centos --class gnu-linux --class gnu --class os --unrestricted $menuentry_id_option 'gnulinux-3.10.0-693.el7.x86_64-advanced-45670b90-30b7-4e8e-90b0-986d83e21345' {\r\nmenuentry 'CentOS Linux (4.18.6-1.el7.elrepo.x86_64) 7 (Core)' --class centos --class gnu-linux --class gnu --class os --unrestricted $menuentry_id_option 'gnulinux-3.10.0-693.el7.x86_64-advanced-45670b90-30b7-4e8e-90b0-986d83e21345' {\r\nmenuentry 'CentOS Linux (4.18.5-1.el7.elrepo.x86_64) 7 (Core)' --class centos --class gnu-linux --class gnu --class os --unrestricted $menuentry_id_option 'gnulinux-3.10.0-693.el7.x86_64-advanced-45670b90-30b7-4e8e-90b0-986d83e21345' {\r\nmenuentry 'CentOS Linux (3.10.0-862.11.6.el7.x86_64) 7 (Core)' --class centos --class gnu-linux --class gnu --class os --unrestricted $menuentry_id_option 'gnulinux-3.10.0-693.el7.x86_64-advanced-45670b90-30b7-4e8e-90b0-986d83e21345' {\r\nmenuentry 'CentOS Linux (3.10.0-693.el7.x86_64) 7 (Core)' --class centos --class gnu-linux --class gnu --class os --unrestricted $menuentry_id_option 'gnulinux-3.10.0-693.el7.x86_64-advanced-45670b90-30b7-4e8e-90b0-986d83e21345' {\r\nmenuentry 'CentOS Linux (0-rescue-eb40493c64db490f836ebe78373ca0f2) 7 (Core)' --class centos --class gnu-linux --class gnu --class os --unrestricted $menuentry_id_option 'gnulinux-0-rescue-eb40493c64db490f836ebe78373ca0f2-advanced-45670b90-30b7-4e8e-90b0-986d83e21345' {<\/pre>\n<p><strong>2\uff0c\u8bbe\u7f6e\u9ed8\u8ba4\u7684\u542f\u52a8\u5185\u6838\u3002<\/strong>\u6bd4\u5982\u6211\u4eec\u9009\u62e9\u4e0a\u8fb9\u4e2d\u7684\u201cCentOS Linux (4.18.7-1.el7.elrepo.x86_64) 7 (Core)\u201d\u8fd9\u4e2a\u5185\u6838\u4e3a\u9ed8\u8ba4\u542f\u52a8\u3002<\/p>\n<div class=\"cnblogs_Highlighter\">\n<pre class=\"lang:sh decode:true\">[root@local ~]# grub2-set-default \"CentOS Linux (4.18.7-1.el7.elrepo.x86_64) 7 (Core)\" \u914d\u7f6e\u9ed8\u8ba4\u5185\u6838<\/pre>\n<\/div>\n<p>\u9a8c\u8bc1\u662f\u5426\u4fee\u6539\u6210\u529f\uff1a<\/p>\n<div class=\"cnblogs_Highlighter\">\n<pre class=\"lang:sh decode:true\">[root@local ~]# grub2-editenv list \r\nsaved_entry=CentOS Linux (4.18.7-1.el7.elrepo.x86_64) 7 (Core)<\/pre>\n<\/div>\n<p>&nbsp;<\/p>\n<p><strong>3\uff0c\u91cd\u542f\u673a\u5668\u89c2\u5bdf\u3002<\/strong><br \/>\n\u91cd\u542f\u6210\u529f\u4ee5\u540e\u67e5\u770b\u4e0b\u673a\u5668\u7684\u5185\u6838\u662f\u4e0d\u662f\u8be5\u5185\u6838\uff1a<\/p>\n<pre class=\"lang:sh decode:true\">[root@local ~]# uname -r\r\n4.18.5-1.el7.elrepo.x86_64<\/pre>\n","protected":false},"excerpt":{"rendered":"<p>\u6211\u4eec\u77e5\u9053\uff0ccentos 6.x\u662f\u901a\u8fc7\/etc\/grub.conf\u5c31\u884c\u5185\u6838\u542f\u52a8\u987a\u5e8f\u4fee\u6539\u7684\uff0c\u800c\u4e14\u6bd4\u8f83\u76f4\u89c2\u67e5\u770b\u3002\u4f46c &hellip; <a href=\"https:\/\/ihongchao.com\/post\/537\/\" class=\"more-link\">\u7ee7\u7eed\u9605\u8bfb<span class=\"screen-reader-text\">Linux CentOS 7.X \u5982\u4f55\u4fee\u6539\u5185\u6838\u542f\u52a8\u9ed8\u8ba4\u987a\u5e8f<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[31],"tags":[36,44,100],"_links":{"self":[{"href":"https:\/\/ihongchao.com\/wp-json\/wp\/v2\/posts\/537"}],"collection":[{"href":"https:\/\/ihongchao.com\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/ihongchao.com\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/ihongchao.com\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/ihongchao.com\/wp-json\/wp\/v2\/comments?post=537"}],"version-history":[{"count":6,"href":"https:\/\/ihongchao.com\/wp-json\/wp\/v2\/posts\/537\/revisions"}],"predecessor-version":[{"id":577,"href":"https:\/\/ihongchao.com\/wp-json\/wp\/v2\/posts\/537\/revisions\/577"}],"wp:attachment":[{"href":"https:\/\/ihongchao.com\/wp-json\/wp\/v2\/media?parent=537"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/ihongchao.com\/wp-json\/wp\/v2\/categories?post=537"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/ihongchao.com\/wp-json\/wp\/v2\/tags?post=537"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}