{"id":1526,"date":"2023-01-24T01:41:55","date_gmt":"2023-01-23T20:11:55","guid":{"rendered":"https:\/\/trysiteprice.com\/blog\/?p=1526"},"modified":"2023-01-24T01:41:55","modified_gmt":"2023-01-23T20:11:55","slug":"how-to-on-enable-kernel-crash-dump-on-debian-linux","status":"publish","type":"post","link":"https:\/\/trysiteprice.com\/blog\/how-to-on-enable-kernel-crash-dump-on-debian-linux\/","title":{"rendered":"How to on enable kernel crash dump on Debian Linux"},"content":{"rendered":"<p>Enabling kernel crash dump on Debian Linux involves several steps, here is an overview of the process:<\/p>\n<ol>\n<li>Install the <code>kexec-tools<\/code> package:<\/li>\n<\/ol>\n<div class=\"bg-black mb-4 rounded-md\">\n<div class=\"flex items-center relative text-gray-200 bg-gray-800 px-4 py-2 text-xs font-sans\"><\/div>\n<div class=\"p-4 overflow-y-auto\"><code class=\"!whitespace-pre-wrap hljs language-sql\">sudo apt <span class=\"hljs-keyword\">update<\/span><br \/>\nsudo apt install kexec<span class=\"hljs-operator\">-<\/span>tools<br \/>\n<\/code><\/div>\n<\/div>\n<ol start=\"2\">\n<li>Configure the kernel to use the <code>kdump<\/code> feature by adding the following line to the <code>\/etc\/default\/grub<\/code> file:<\/li>\n<\/ol>\n<div class=\"bg-black mb-4 rounded-md\">\n<div class=\"flex items-center relative text-gray-200 bg-gray-800 px-4 py-2 text-xs font-sans\"><\/div>\n<div class=\"p-4 overflow-y-auto\"><code class=\"!whitespace-pre-wrap hljs language-makefile\">GRUB_CMDLINE_LINUX_DEFAULT=<span class=\"hljs-string\">\"crashkernel=128M\"<\/span><br \/>\n<\/code><\/div>\n<\/div>\n<ol start=\"3\">\n<li>Update the grub configuration:<\/li>\n<\/ol>\n<div class=\"bg-black mb-4 rounded-md\">\n<div class=\"flex items-center relative text-gray-200 bg-gray-800 px-4 py-2 text-xs font-sans\"><\/div>\n<div class=\"p-4 overflow-y-auto\"><code class=\"!whitespace-pre-wrap hljs language-sql\">sudo <span class=\"hljs-keyword\">update<\/span><span class=\"hljs-operator\">-<\/span>grub<br \/>\n<\/code><\/div>\n<\/div>\n<ol start=\"4\">\n<li>Configure the <code>kdump<\/code> service by editing the <code>\/etc\/default\/kdump-tools<\/code> file. For example, to configure the service to save core dumps to the <code>\/var\/crash<\/code> directory, set the <code>USE_KDUMP<\/code> variable to <code>1<\/code> and the <code>KDUMP_COREDIR<\/code> variable to <code>\/var\/crash<\/code>.<\/li>\n<li>Start the <code>kdump<\/code> service:<\/li>\n<\/ol>\n<div class=\"bg-black mb-4 rounded-md\">\n<div class=\"flex items-center relative text-gray-200 bg-gray-800 px-4 py-2 text-xs font-sans\"><\/div>\n<div class=\"p-4 overflow-y-auto\"><code class=\"!whitespace-pre-wrap hljs language-sql\">sudo systemctl <span class=\"hljs-keyword\">start<\/span> kdump<br \/>\n<\/code><\/div>\n<\/div>\n<ol start=\"6\">\n<li>Enable the <code>kdump<\/code> service to start automatically at boot time:<\/li>\n<\/ol>\n<div class=\"bg-black mb-4 rounded-md\">\n<div class=\"flex items-center relative text-gray-200 bg-gray-800 px-4 py-2 text-xs font-sans\"><\/div>\n<div class=\"p-4 overflow-y-auto\"><code class=\"!whitespace-pre-wrap hljs language-bash\">sudo systemctl <span class=\"hljs-built_in\">enable<\/span> kdump<br \/>\n<\/code><\/div>\n<\/div>\n<p>Once the service is enabled and running, the kernel will automatically save a crash dump in the specified directory in case of a crash.<\/p>\n<p>Please note that this is just a basic setup, in order to use it in production environment you should consider security and performance configurations. Also enabling kernel crash dump requires some memory for the crash kernel, so ensure that you have enough memory available.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Enabling kernel crash dump on Debian Linux involves several steps, here is an overview of the process: Install the kexec-tools package: sudo apt update sudo apt install kexec-tools Configure the kernel to use the kdump feature by adding the following line to the \/etc\/default\/grub file: GRUB_CMDLINE_LINUX_DEFAULT=&#8221;crashkernel=128M&#8221; Update the grub configuration: sudo update-grub Configure the kdump &#8230; <a title=\"How to on enable kernel crash dump on Debian Linux\" class=\"read-more\" href=\"https:\/\/trysiteprice.com\/blog\/how-to-on-enable-kernel-crash-dump-on-debian-linux\/\" aria-label=\"Read more about How to on enable kernel crash dump on Debian Linux\">Read more<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-1526","post","type-post","status-publish","format-standard","hentry","category-best-tutorial"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v23.9 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>How to on enable kernel crash dump on Debian Linux - TrySitePrice<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/trysiteprice.com\/blog\/how-to-on-enable-kernel-crash-dump-on-debian-linux\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"How to on enable kernel crash dump on Debian Linux - TrySitePrice\" \/>\n<meta property=\"og:description\" content=\"Enabling kernel crash dump on Debian Linux involves several steps, here is an overview of the process: Install the kexec-tools package: sudo apt update sudo apt install kexec-tools Configure the kernel to use the kdump feature by adding the following line to the \/etc\/default\/grub file: GRUB_CMDLINE_LINUX_DEFAULT=&quot;crashkernel=128M&quot; Update the grub configuration: sudo update-grub Configure the kdump ... 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