{"id":1281,"date":"2020-01-08T10:25:19","date_gmt":"2020-01-08T02:25:19","guid":{"rendered":"http:\/\/iqotom.com\/?p=1281"},"modified":"2020-02-27T09:46:04","modified_gmt":"2020-02-27T01:46:04","slug":"linux-centos%e6%94%af%e6%8c%81%e5%a4%9a%e4%b8%b2%e5%8f%a3%e7%9a%84%e6%96%b9%e6%b3%95","status":"publish","type":"post","link":"http:\/\/iqotom.com\/?p=1281","title":{"rendered":"Linux Centos\u652f\u6301\u591a\u4e32\u53e3\u7684\u65b9\u6cd5"},"content":{"rendered":"\n<h2 class=\"wp-block-heading\">\u524d\u8a00<\/h2>\n\n\n\n<p> \u3000\u3000\u6700\u8fd1\u53d1\u73b0\u57286\u4e32\u53e3\u7684\u4e3b\u677f\u5b89\u88c5Centos 7\u540e\uff0c\u4e32\u53e3\u53ea\u80fd\u8bc6\u522b4\u4e2a\uff0cUbuntu\u548cwindows\u6ca1\u6709\u6b64\u95ee\u9898\uff0c\u901a\u8fc7\u7f51\u4e0a\u67e5\u627e\u76f8\u5173\u8d44\u6599\u540e\u89e3\u51b3\uff0c\u8fd9\u91cc\u8bb0\u5f55\u4e0b\u89e3\u51b3\u65b9\u6cd5\u3002\u4e3a\u4e86\u65b9\u4fbf\u8fd9\u91cc\u7528\u865a\u62df\u673a\u6f14\u793a\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>\u67e5\u770b\u4e32\u53e3\u60c5\u51b5<\/strong><\/h2>\n\n\n\n<pre class=\"wp-block-code\"><code>dmesg|grep tty<\/code><\/pre>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter\"><img loading=\"lazy\" decoding=\"async\" width=\"511\" height=\"102\" src=\"http:\/\/iqotom.com\/wp-content\/uploads\/2020\/01\/centos_tty_01.png\" alt=\"\" class=\"wp-image-1282\" srcset=\"http:\/\/iqotom.com\/wp-content\/uploads\/2020\/01\/centos_tty_01.png?v=1585627804 511w, http:\/\/iqotom.com\/wp-content\/uploads\/2020\/01\/centos_tty_01-300x60.png?v=1585627804 300w\" sizes=\"(max-width: 511px) 100vw, 511px\" \/><figcaption>centos tty<\/figcaption><\/figure><\/div>\n\n\n\n<pre class=\"wp-block-code\"><code>dmesg|grep serial<\/code><\/pre>\n\n\n\n<p class=\"has-text-color has-vivid-red-color\">\u5982\u679c\u7269\u7406\u673a\u8d85\u8fc74\u4e2a\u4e32\u53e3\uff0c\u8fd9\u91cc\u591a\u51fa\u7684\u4e32\u53e3\u4f1a\u663e\u793adisable<\/p>\n\n\n\n<p><strong>\u4ea7\u751f\u539f\u56e0\uff1a\u5f88\u591aLinux\u53d1\u884c\u7248\u76848250\u4e32\u53e3\u9a71\u52a8\u9ed8\u8ba4\u9650\u5236\u4e86\u80fd\u591f\u4f7f\u7528\u7684\u6700\u5927\u4e32\u53e3\u6570\u91cf\u4e3a4<\/strong><\/p>\n\n\n\n<p><strong>\u67e5\u8be2\u5185\u6838\u4e32\u53e3\u914d\u7f6e<\/strong><\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>cat \/boot\/config-'uname-r'|grep 8250<\/code><\/pre>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter\"><img loading=\"lazy\" decoding=\"async\" width=\"610\" height=\"259\" src=\"http:\/\/iqotom.com\/wp-content\/uploads\/2020\/01\/centos_tty_02.png\" alt=\"\" class=\"wp-image-1283\" srcset=\"http:\/\/iqotom.com\/wp-content\/uploads\/2020\/01\/centos_tty_02.png?v=1585627803 610w, http:\/\/iqotom.com\/wp-content\/uploads\/2020\/01\/centos_tty_02-300x127.png?v=1585627803 300w\" sizes=\"(max-width: 610px) 100vw, 610px\" \/><figcaption>runtime_uarts<\/figcaption><\/figure><\/div>\n\n\n\n<p>\u914d\u7f6e\u9879<strong>RUNTIME_UARTS=4<\/strong>\u9650\u5236\u4e86\u4f60\u6700\u591a\u53ea\u80fd\u540c\u65f6\u4f7f\u75284\u4e2a\u4e32\u53e3\u8bbe\u5907\uff0c\u5982\u679c\u4f60\u67096\u4e2a\u4e32\u53e3\uff0c\u90a3\u4e48\u53ea\u80fd\u8bc6\u522b\u51fa4\u4e2a\uff0c\u53e6\u4e24\u4e2a\u662fdisable\u72b6\u6001<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u89e3\u51b3\u529e\u6cd5<\/h2>\n\n\n\n<p>1\u3001\u914d\u7f6e\u5185\u6838\u91cd\u65b0\u7f16\u8bd1\uff0c\u592a\u8d39\u65f6\u4e0d\u63a8\u8350<\/p>\n\n\n\n<p>2\u3001GRUB\u6dfb\u52a0\u5185\u6838\u542f\u52a8\u53c2\u6570 <code>8250.nr_uarts=?<\/code>(\u6570\u91cf\u6839\u636e\u81ea\u5df1\u771f\u5b9e\u60c5\u51b5\u8f93\u5165)\uff0c\u63a8\u8350<\/p>\n\n\n\n<p><strong>\u7b2c\u4e8c\u79cd\u65b9\u6cd5\u89e3\u51b3\u6b65\u9aa4<\/strong><\/p>\n\n\n\n<ol><li>\u6253\u5f00<code>\/etc\/default\/grub<\/code>\uff0c \u4fee\u6539<strong><code>GRUB_CMDLINE_LINUX<\/code><\/strong>\u884c\uff0c\u6dfb\u52a0 <code>8250.nr_uarts= 6<\/code><\/li><li><code>grub2-mkconfig -o \/boot\/grub2\/grub.cfg<\/code>\u6267\u884c\u66f4\u65b0<\/li><\/ol>\n\n\n\n<p class=\"has-text-color has-vivid-red-color\"> \u6ce8\u610fUEFI \u7cfb\u7edf\u4e0a\u7684\u6307\u4ee4\u662f&nbsp;<strong><code>grub2-mkconfig -o \/boot\/efi\/EFI\/centos\/grub.cfg<\/code><\/strong><\/p>\n\n\n\n<p>\u91cd\u542f\u7535\u8111\u540e\uff0c\u8f93\u5165<code>cat \/proc\/cmdline<\/code>\u67e5\u770b\u5185\u6838\u8f93\u51fa\u53c2\u6570\uff0c\u5982\u679c\u6709\u521a\u6dfb\u52a0\u76848250\u5373\u8bf4\u660e\u914d\u7f6e\u6210\u529f\uff0c\u8fd9\u68376\u4e2a\u4e32\u53e3\u5c31\u90fd\u80fd\u4f7f\u7528\u4e86<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u524d\u8a00 \u3000\u3000\u6700\u8fd1\u53d1\u73b0\u57286\u4e32\u53e3\u7684\u4e3b\u677f\u5b89\u88c5Centos 7\u540e\uff0c\u4e32\u53e3\u53ea\u80fd\u8bc6\u522b4\u4e2a\uff0cUbuntu\u548cwindows\u6ca1\u6709\u6b64\u95ee\u2026 <span class=\"read-more\"><a href=\"http:\/\/iqotom.com\/?p=1281\">Read More &raquo;<\/a><\/span><\/p>\n","protected":false},"author":1,"featured_media":1285,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[5,95],"tags":[25,18],"_links":{"self":[{"href":"http:\/\/iqotom.com\/index.php?rest_route=\/wp\/v2\/posts\/1281"}],"collection":[{"href":"http:\/\/iqotom.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/iqotom.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/iqotom.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/iqotom.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=1281"}],"version-history":[{"count":3,"href":"http:\/\/iqotom.com\/index.php?rest_route=\/wp\/v2\/posts\/1281\/revisions"}],"predecessor-version":[{"id":1336,"href":"http:\/\/iqotom.com\/index.php?rest_route=\/wp\/v2\/posts\/1281\/revisions\/1336"}],"wp:featuredmedia":[{"embeddable":true,"href":"http:\/\/iqotom.com\/index.php?rest_route=\/wp\/v2\/media\/1285"}],"wp:attachment":[{"href":"http:\/\/iqotom.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1281"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/iqotom.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=1281"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/iqotom.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=1281"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}