Category 631
Discussion List
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Oracle Linux - How to remove old unused kernels (UEK and RHCK)Applies to: Oracle Cloud Infrastructure - Version N/A and later Linux x86-64 Oracle Linux 8 – Oracle Linux 9. Goal: Remove old unused kernels to avoid /boot partition to…Alejandro Rodriguez L.-Oracle 4K views 2 comments 0 points Most recent by Govinda-OL_OCI-Oracle Linux -
MakefileException Exception String: Error in invoking target 'libasmclntsh19.ohso libasmperl19.ohsoSummary: Content (please ensure you mask any confidential information): Version (include the version you are using, if applicable): Code Snippet (add any code snippets t… -
Oracle Linux: Error "kernel: i40e : Module type unrecognized" are reported for NIC InterfacesApplies To Linux OS - Version Oracle Linux 8.0 and later Linux x86-64 Symptom /var/log/messages reports the below errors for multiple NIC interfaces: kernel: : Module …
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OSMH–Onprem instance registration fails error “The registration attempt failed with HTTP Status 403"Applies to:Oracle Cloud Infrastructure Linux x86-64 Symptoms: The customer is registering on premise client instance with OSMH management station. But failed with the fo…
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NetworkManager Fails with Errors "NM_CONTROLLED: command not found" and "invalid line ignored"Applies To: Oracle Cloud Infrastructure Linux x86-64 Symptoms: After rebooting the OCI instance, NetworkManager.service does not start automatically. As a result, Networ…
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OSMH: kexec-tools: Interrupted by header callback: Inconsistent server dataApplies To: Oracle Cloud Infrastructure - Version N/A and later OS Management Hub (OSMH) Symptoms: Oracle Linux instance under OSMH control reports the following error d…
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Oracle Linux: rhn-plugin Error Observed on Oracle Linux Instance Registered to OS Management HubApplies To Linux OS - Oracle Linux 7.0 and above. Summary Instance is managed via OS Management Hub in Oracle Cloud Infrastructure (OCI) and the below error occurs durin…
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OCI: How To Restrict a Package to a Fixed Version Using yumApplies To: Oracle Cloud Infrastructure - Version N/A and later Oracle Linux x86-64 Goal This document describes how to lock a package to a fixed version so that it can …
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OCI: ExaCC Linux Instance Crashed with "Kernel Panic: NULL Pointer Dereference" in trailing_symlinkApplies: Oracle Cloud Infrastructure - Version N/A and later Oracle Linux Server Release 7/8 Symptoms: ExaCC instance with UEK6 kernel version 5.4.17-2136.336.5.3.2.el8u…
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Oracle Linux – Cloud Shell connection no longer works after OS Hardening Applies to: Oracle CloudApplies to: Oracle Cloud Infrastructure - Version N/A and later Oracle Linux 7/8/9 Goal: Restore Cloud Shell connection to a working state after applying an OS hardening…Alejandro Rodriguez L.-Oracle 4.8K views 1 comment 1 point Most recent by Narasimharao Popuri-Oracle Linux
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OCI How to disable yum repos from the command lineNote: "Please register a free account to access the full content and also to participate in Q&A in the community” Applies to: Oracle Cloud Infrastructure - Version N/A a…
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OCI: SSH Login Failure with "Permission Denied (Publickey)" Error on Ubuntu InstanceApplies To: All Users Oracle Cloud Infrastructure - Version N/A and later Symptoms: The SSH login to the Ubuntu instance using the ubuntu user is failing with the follow…
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OCI: In Oracle Linux 7/CentOS 7 Instances, /etc/resolv.conf Gets Wiped After the First RebootApplies To: Oracle Cloud Infrastructure Oracle Linux Server release 7 Symptoms: The /etc/resolv.conf file is wiped out after the first reboot in Oracle Linux 7 /CentOS 7…
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Oracle Linux: Boot Volume Resize in OCI Does Not Reflect Increased Size in the OSApplies To: Oracle Linux 7, 8, and 9 Oracle Cloud Infrastructure Symptoms: After increasing the boot volume size in OCI, the instance still shows the old disk capacity. …
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Oracle Linux: systemctl shows 'Authorization not available'(DBus/Polkit/Journald recovery after OOM)Applies To: Oracle Cloud Infrastructure Oracle Linux 7 and later Symptoms: • Running 'systemctl daemon-reload' prints: Authorization not available. Check if polkit servi…
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Oracle Linux: System RAM does not Match with the Value in OCI ConsoleApplies to: Oracle Cloud Infrastructure - Version N/A and later Oracle Linux 7 and later Goal: Understand why Oracle Linux does not show the same amount of Memory (RAM) …Alejandro Rodriguez L.-Oracle 20 views 0 comments 0 points Started by Alejandro Rodriguez L.-Oracle Linux
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Oracle Linux: SSH login delay (~30s)Applies To: Oracle Linux 7 and later Symptoms: Users report SSH takes ~20–30 seconds to log in after boot, even though the OS finishes booting quickly. systemd-analyze b…
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how can we mount the boot volume backup on same server in oel 9Summary: We have taken backup of boot volume and trying to mount on same server for data restoration. unable to mount. getting mount: /old_boot: unknown filesystem type …
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Oracle Linux: How to Downgrade Multiple RPM Packages to Match a Good Known SystemApplies to: Oracle Cloud Infrastructure - Version N/A and later Oracle Linux 8 and later Goal: This document explains steps to downgrade multiple RPM Packages to match a…Alejandro Rodriguez L.-Oracle 15 views 0 comments 0 points Started by Alejandro Rodriguez L.-Oracle Linux
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Oracle Linux: Install and Access Cockpit using Root AccountApplies to: Oracle Cloud Infrastructure - Version N/A and later Oracle Linux 8 and later versions Goal: Access Cockpit to facilitate the administration of the system usi…Alejandro Rodriguez L.-Oracle 17 views 0 comments 0 points Started by Alejandro Rodriguez L.-Oracle Linux
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After Adding a New GRUB_CMDLINE_LINUX to /etc/default/grub System Is Not Booting as ExpectedApplies To: Oracle Linux 7 and Later Symptoms: A new GRUB_CMDLINE_LINUX line was added to enable "audit=1", in /etc/default/grub After that, the boot change and the netw…
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Oracle Linux: How To Setup a OCFS2 on LVM in a Corosync/Pacemaker clusterApplies To: Oracle Linux 8 Oracle Cloud Infrastructure Goal: This Document will describe how to set up a clustered filesystem accessible simultaneously on both nodes usi…
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Oracle Linux: Active Directory User Fails to Login with Error "Permission Denied"Applies to: Oracle Linux Symptoms: While trying to login as an Active Directory user, the user is unable to login and receives a "Permission Denied" message. /var/log/se…
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Oracle Linux – Using GNU Parallel command to improve backup(s) to an NFS ServerAPPLIES TO Oracle Cloud Infrastructure - Version N/A and later Oracle Linux 7/8/9 GOAL Improve network throughput and reduce times to backup important data/information t…Alejandro Rodriguez L.-Oracle 3 views 0 comments 0 points Started by Alejandro Rodriguez L.-Oracle Linux
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Oracle Linux: "adcli: couldn't connect to <realm> domain: Failed to create kerberos context:"Applies to: Linux OS - Version Oracle Linux 7.0 and later Symptoms: Joining a Microsoft Active Directory domain fails: # adcli -v join -U * Using domain name: * Calcu…
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Oracle Linux: How to Create New systemd TimersApplies To: Oracle Cloud Infrastructure - Version N/A and later Oracle Linux 7/8/9 Goal: This article is to document how to create new systemd timers, a systemd way of r…Alejandro Rodriguez L.-Oracle 3 views 0 comments 0 points Started by Alejandro Rodriguez L.-Oracle Linux
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Oracle Linux: Using _netdev In Local Filesystem Can Cause Systemd Dependencies ProblemsApplies To: Oracle Linux 8 Symptoms: If “_netdev” is specified as an option on /etc/fstab for a local (non-network mounted) filesystem in /etc/fstab, it can cause system…
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Oracle Linux: How to Use the Options disp_qos and dispatcher in /etc/audit/auditd.confApplies To Linux OS - Version Oracle Linux 7.0 to Oracle Linux 9.0 [Release OL7 to OL9] Summary To understand the usage of the options disp_qos and dispatcher in /etc/au…
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Oracle Linux: Understanding "installonly_limit" Parameter Used with YUM/DNFApplies To Linux OS - Version Oracle Linux 7.0 and later Summary This document is intended to provide understanding on the use of the parameter "installonly_limit" in /e…
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Oracle Linux - How to Allow new users or existing user login via SSHApplies to: Oracle Linux 7 to Oracle Linux 9 Linux x86_64 on Oracle Public Cloud Goal: This document is intended to provide steps to allow new users or existing users(be…