{"id":2094,"date":"2017-09-25T12:48:27","date_gmt":"2017-09-25T07:18:27","guid":{"rendered":"https:\/\/pheonixsolutions.com\/blog\/?p=2094"},"modified":"2026-09-10T09:12:12","modified_gmt":"2026-09-10T03:42:12","slug":"fix-cpanel-installation-error-could-not-fetch-tiers-file","status":"publish","type":"post","link":"https:\/\/pheonixsolutions.com\/blog\/fix-cpanel-installation-error-could-not-fetch-tiers-file\/","title":{"rendered":"Fix for Cpanel installation error (FATAL): The system could not fetch the TIERS file."},"content":{"rendered":"\n<h2 class=\"wp-block-heading\">Introduction<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">While installing cPanel\/WHM on a CentOS 7 server, you may encounter the following error message:<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">2017-09-24 13:24:41 1173 ( INFO): The installation process will now import GPG keys for yum.\n2017-09-24 13:24:41 1068 (DEBUG):   Retrieving http:\/\/httpupdate.cpanel.net\/cpanelsync\/TIERS to the TIERS file...\n2017-09-24 13:24:51 1073 (FATAL): The system could not fetch the TIERS file.\nRemoving \/root\/installer.lock.<\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">This error prevents the cPanel installer from downloading the required TIERS file and completing the installation process. In most cases, the issue is related to incorrect DNS configuration or network connectivity problems on the server.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">This guide explains the cause of the error and provides a simple solution to resolve it.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Why Does This Error Occur?<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">The cPanel installer must connect to cPanel&#8217;s update servers to download installation files. If the server cannot resolve hostnames due to an incorrect or unreachable DNS server, the installer fails with the &#8220;could not fetch the TIERS file&#8221; error.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Common causes include:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Invalid DNS server entries in <code>\/etc\/resolv.conf<\/code><\/li>\n\n\n\n<li>Network connectivity issues<\/li>\n\n\n\n<li>Firewall restrictions preventing outbound connections<\/li>\n\n\n\n<li>Temporary DNS resolution failures<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">How to Fix the Error<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">Step 1: Edit the DNS Configuration<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Log in to the server as the root user or a user with sudo privileges and open the <code>resolv.conf<\/code> file:<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">vi \/etc\/resolv.conf<\/pre>\n\n\n\n<h3 class=\"wp-block-heading\">Step 2: Add a Public DNS Server<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Add a public DNS server such as Google DNS (<code>8.8.8.8<\/code>) along with your existing DNS configuration.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Example:<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">search localdomain example.com\n# Generated by NetworkManager\nnameserver 8.8.8.8\nnameserver 192.168.55.2<\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">You may also use:<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">nameserver 4.2.2.2\nnameserver 4.2.2.1<\/pre>\n\n\n\n<h3 class=\"wp-block-heading\">Step 3: Save and Exit<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Save the file and exit the editor.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Step 4: Restart the cPanel Installation<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Run the installer again:<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">sh latest<\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">The installer should now be able to resolve the cPanel update servers and continue the installation successfully.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Additional Troubleshooting<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">If the issue persists, verify DNS resolution and network connectivity:<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">ping google.com<\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">or<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">nslookup httpupdate.cpanel.net<\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">If these commands fail, investigate your network configuration, firewall settings, or upstream DNS provider.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Conclusion<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">The &#8220;The system could not fetch the TIERS file&#8221; error is typically caused by DNS resolution problems during cPanel installation. Updating the <code>\/etc\/resolv.conf<\/code> file with a reliable public DNS server such as Google DNS usually resolves the issue quickly. After correcting the DNS settings, rerun the installer and the installation should proceed normally.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Frequently Asked Questions (FAQ)<\/h2>\n\n\n\n<h4 class=\"wp-block-heading\">1. What is the TIERS file in cPanel installation?<\/h4>\n\n\n\n<p class=\"wp-block-paragraph\">The TIERS file contains information about cPanel release tiers and update channels. The installer downloads this file from cPanel&#8217;s update servers to determine which packages and updates should be installed.<\/p>\n\n\n\n<h4 class=\"wp-block-heading\">2. How can I verify that DNS resolution is working on my server?<\/h4>\n\n\n\n<p class=\"wp-block-paragraph\">You can test DNS resolution using:<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">nslookup httpupdate.cpanel.net<\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">or<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">dig httpupdate.cpanel.net<\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">If these commands return valid IP addresses, DNS resolution is functioning correctly.<\/p>\n\n\n\n<h4 class=\"wp-block-heading\">3. Will modifying <code>\/etc\/resolv.conf<\/code> permanently fix the issue?<\/h4>\n\n\n\n<p class=\"wp-block-paragraph\">In some environments, NetworkManager or DHCP services may overwrite <code>\/etc\/resolv.conf<\/code>. If the problem reoccurs after a reboot, update the DNS settings within NetworkManager or your network configuration to make the changes persistent.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Related Articles<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\"><a href=\"https:\/\/pheonixsolutions.com\/blog\/configure-multiple-php-litespeed-cpanel-server\/\">Configure Multiple PHP Versions with LiteSpeed on cPanel Server<\/a><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><a href=\"https:\/\/pheonixsolutions.com\/blog\/fix-cpanel-installation-error-system-detected-installer-lock-file-rootinstaller-lock\/\">Fix cPanel Installation Error: Installer Lock File (<\/a><code><a href=\"https:\/\/pheonixsolutions.com\/blog\/fix-cpanel-installation-error-system-detected-installer-lock-file-rootinstaller-lock\/\">\/root\/installer.lock<\/a><\/code><a href=\"https:\/\/pheonixsolutions.com\/blog\/fix-cpanel-installation-error-system-detected-installer-lock-file-rootinstaller-lock\/\">)<\/a><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><a href=\"https:\/\/pheonixsolutions.com\/blog\/dns-cluster-setup-cpanel-servers\/\">DNS Cluster Setup Between cPanel Servers<\/a><\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Talk to our experts<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Looking for the right technology solution for your business? Our team of experts can help you with development, cloud, DevOps, design, and a wide range of other technology needs. Get in touch with our team&nbsp;<a href=\"https:\/\/pheonixsolutions.com\/contact\" target=\"_blank\" rel=\"noreferrer noopener\">here<\/a>.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Introduction While installing cPanel\/WHM on a CentOS 7 server, you may encounter the following error message: This error prevents the [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":false,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2},"jetpack_post_was_ever_published":false},"categories":[1019],"tags":[],"class_list":["post-2094","post","type-post","status-publish","format-standard","hentry","category-cloud-aws","psol-cat-cloud-aws"],"jetpack_publicize_connections":[],"jetpack_shortlink":"https:\/\/wp.me\/phn2x7-xM","jetpack_sharing_enabled":true,"jetpack_featured_media_url":"","_links":{"self":[{"href":"https:\/\/pheonixsolutions.com\/blog\/wp-json\/wp\/v2\/posts\/2094","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/pheonixsolutions.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/pheonixsolutions.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/pheonixsolutions.com\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/pheonixsolutions.com\/blog\/wp-json\/wp\/v2\/comments?post=2094"}],"version-history":[{"count":1,"href":"https:\/\/pheonixsolutions.com\/blog\/wp-json\/wp\/v2\/posts\/2094\/revisions"}],"predecessor-version":[{"id":11605,"href":"https:\/\/pheonixsolutions.com\/blog\/wp-json\/wp\/v2\/posts\/2094\/revisions\/11605"}],"wp:attachment":[{"href":"https:\/\/pheonixsolutions.com\/blog\/wp-json\/wp\/v2\/media?parent=2094"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/pheonixsolutions.com\/blog\/wp-json\/wp\/v2\/categories?post=2094"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/pheonixsolutions.com\/blog\/wp-json\/wp\/v2\/tags?post=2094"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}