To ensure that questions get required attention from community members and are NOT left unanswered, it’s important for the author to indicate (by selecting “Yes” or “No” when prompted) whether the question was answered. (newly added) Please note that it is also important to respond to EACH comment your question receives. Your Yes or No response ensures an accurate status for your question.
For more information, please refer to this announcement explaining best practices for getting answers to questions.
For more information, please refer to this announcement explaining best practices for getting answers to questions.
Linux
Discussion List
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OSMH: On-Prem Oracle Linux 7 to 8 Leapp upgrade with OSMH Agent Version 3.1.1 or HigherNOTE: 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 OS Management Hu… -
OSMH: On-Prem Oracle Linux 8 to 9 Leapp Upgrade with OSMH Agent Version 3.1.1 or HigherNOTE: 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 OS Management Hu…
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Oracle Linux: Create a Proxy which Intercepts SSL Connections and Injects its own CertificateApplies To: Oracle Cloud Infrastructure Oracle Linux Goal: The goal is to create a squid proxy which intercepts ssl connections and injects its own certificate. Solution…
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OSMH: On-Prem Software Source is only available in OCIApplies To: Oracle Cloud InfrastructureOS Management Hub (OSMH) Problem: A software source cannot be synced to an on-prem osmh management station, and "Vendor software s…
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Oracle Linux : Unable to rebuild the initramfs with "dracut module 'network-legacy' cannot be found"Note: "Please register a free account to access the full content and also to participate in Q&A in the community” APPLIES TO: Oracle Linux 8 (x86_64) Oracle Linux 9 (x86…
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OSMH: OL7 Job Update Process Fails with Error “package ksplice-tools is not installed”Note: "Please register a free account to access the full content and also to participate in Q&A in the community” APPLIES TO: Linux OS– Oracle Linux 7.0 and later Oracle…
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OSMH : Quick Setup Of OSMH For OCI InstancesApplies To: OS Management Hub Oracle Cloud Infrastructure Autonomous Linux Goal: To Setup OS Management Hub on a newly created OCI instance or an existing OCI instance. …
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OCI: leapp upgrade failed with error: file #### from install of ####Applies To: Oracle Cloud Infrastructure - Version N/A and later Linux x86-64 on Oracle Public Cloud Symptoms: Leapp upgrade from OL7 to OL8 fails with below error and th…
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OMSH: Registering a Non-OCI Instance Where Management Station uses a Proxy That Injects Its Own CertNote!!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 OS Management Hub…
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OSMH: On-Prem Leapp Upgrade to OL9, mgmt_agent Fails to Start After UpgradeNote!!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 OS Management Hub…
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OCI: Handling Deprecated SSH Cipher Alerts in Environments Using Active DirectoryApplies To: Oracle Cloud Infrastructure Oracle Linux x86_64 Symptoms: During a vulnerability scan, the system was flagged with QID: 38739 – Deprecated SSH Cryptographic …
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OSMH:Quick Setup of a Management Station Installation with a Proxy which Injects its own CertificateApplies To: Oracle Cloud Infrastructure OS Management Hub (OSMH) Goal: To install a new management station for on-premises clients, when using a proxy which injects its …
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OSMH:OL9 Job Update Process Fails with Ksplice user space patchesAPPLIES TO: Linux OS– Oracle Linux 9.0 [OL9] Oracle Cloud Infrastructure - Version N/A and later SYMPTOMS: New Oracle Linux 9 instance with OSMH service working as expec…
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OSMH – How to Check OSMH Agent Services on OCI WindowsApplies to: Windows 2016 and Later Platform x64 Goal: How to do basic check for Windows instances OSMH agent services SOLUTION: Login to the instance via Microsoft Remot…
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OCI: SSH Connection to Instance Fails with Error "Server Refused Our Key"Applies To: Oracle Linux Cloud Service - Version Oracle Linux 7.0 and later Oracle Cloud Infrastructure Information in this document applies to any platform. Symptoms Un…
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OSMH: On-prem Management Agent Install Fails with "The registration attempt failed due to javax.net"Applies To: OS Management Hub (OSMH) Oracle Cloud Infrastructure Symptoms: In this scenario the on-premise management station is configured with a proxy to reach the oci…
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Oracle Linux: How to Generate and Use Auth Token/Secret Key for ULNApplies to: Linux OS - Version Oracle Linux 7.0 and laterLinux x86-64 Goal This document provides details about Auth Token/Secret Key feature in ULN and how to generate,…
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Kernel panic During Boot Due to Corrupted LibrariesApplies To: Oracle Cloud Infrastructure Oracle Linux Symptoms Oracle Linux instance showed instability and after a graceful reboot it shows the following kernel panic [[… -
Preventing Duplication of Remote Syslog Log Entries in /var/log/messagesApplies to: Oracle Cloud Infrastructure Linux x86-64 Symptoms Syslog records received from remote systems are being logged in both the dedicated log file (rsyslog--%HOST…
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OCI: ALX - Uptrack is Unable to Determine your Effective Kernel VersionApplies to: Oracle Cloud Infrastructure - Version N/A and later Oracle Autonomous Linux Symptoms: These messages are shown when a SSH connection is initialized. Using us… -
OCI- unable to SSH node with error Permission denied (publickey,gssapi-keyex,gssapi-with-mic)Applies to: Oracle Cloud Infrastructure Linux OS Symptoms: [root@xxxxxx ~]# ssh 172.X.X.X.X Permission denied (publickey,gssapi-keyex,gssapi-with-mic). Secure log : sshd…
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OCI - Getting "EXT4-fs warning: mounting fs with errors, running e2fsck is recommended."APPLIES TO: Oracle Cloud Infrastructure Linux OS SYMPTOMS While mounting the filesystem a warning message such as one of the following is triggered in the messages: kern…
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OCI: SSH Connection Fails After Upgrading from Oracle Linux 8 to Oracle Linux 9Applies To: Oracle Cloud Infrastructure Oracle Linux OS Symptoms After upgrading from Oracle Linux 8 to Oracle Linux 9, the system was not reachable via SSH (PuTTY) due …
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OCI: How To Check Next Runtime For SAR Log Generation In Oracle Linux 8Applies to: Oracle Cloud Infrastructure Oracle Linux x86_64 Goal This article is intended to provide an overview of systemd timers to check the next date:time of the sar…
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OCI - Kernel fails to boot with error: "core perfctr but no constraints; unknown hardware!"Applies To: Oracle Cloud Infrastructure Linux OS Symptoms Console history shows below error : [ 0.054021] Performance Events: [ 0.054490] core perfctr but no constraints…
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OCI: /var/log/messages log messages generates only a single line ,no new lineApplies To: Oracle Cloud Infrastructure - Version N/A and later Linux x86-64 Symptoms: OCI Linux instance (OL8) /var/log/messages log messages generates only a single li…
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OCI: Oracle Linux Instance Stops With “reboot: Power down” After BootApplies to: Oracle Cloud Infrastructure - Version N/A and laterLinux x86-64 Symptoms System stops immediately after booting: [[0;32m OK [0m] Stopped Monitoring of LVM2 m…
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Useradd and usermod fail to flush the sssd cache with DB version too old for domain implicit_filesApplies to: Linux OS - Version Oracle Linux 7.0 and later Linux x86-64 Symptoms After sssd upgrade, useradd and usermod fail to flush the sssd cache with "DB version too…
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OCI- yum update Fails with [Errno 14] curl#7 - "Failed connect to 10.x.x.x:80; Connection refused"Applies To: Oracle Cloud Infrastructure Linux OS Symptoms Server is trying to access a local YUM repository but is unable to connect to it due to a Connection refused. #…
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How to Test Port[TCP/UDP] Connectivity from a Linux ServerApplies To: Oracle Cloud Infrastructure Oracle Linux Goal Procedure to check port [TCP/UDP] connectivity from a Linux server Solution Telnet and nc are common tools used…
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OSMH: 'dnf/yum update' Fails with "Segmentation fault" When Using Large Custom Software Source(CSS)NOTE: Please register a free account to access the full content and also to participate in Q&A in the community. APPLIES TO Oracle Linux 8 OS Management Hub (OSMH) SUMMA…
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Oracle Linux: Logrotate Cron Not Working - "Job `cron.daily' Locked By Another Anacron - Skipping"Note: "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 Linux x86-64 Sy…
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OCI: Firewall Failing After Leapp UpgradeNote: "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 Linux x86-64 Sym…
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ExaCC: Random NFS Mount Point Drops During RMAN BackupsExaCC: Random NFS Mount Point Drops During RMAN BackupsEnvironment Platform: Oracle Exadata Cloud@Customer X10M-2 OS: Oracle Linux 8.0 Database: Oracle 19c Enterprise Ed…
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Oracle Linux: Cannot Use sudo As opc UserNote!!Please register a free account to access the full content and also to participate in Q&A in the community Applies To: Linux OS – Version Oracle Linux 8 Linux x86_6…
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Oracle Linux - Leapp Upgrade fails in ALX7 due to packages conflictNote!!Please register a free account to access the full content and also to participate in Q&A in the community Applies to: Linux OS – Version Oracle Autonomous Linux 7 …
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OCI: Leapp Upgrade Fails from Oracle Linux 8 to Oracle Linux 9 on EBS 12.2 ServerNote!!Please register a free account to access the full content and also to participate in Q&A in the community Applies To: Linux OS – Version Oracle Linux 8 Linux x86_6…
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Oracle Linux - How to install the Leapp package in Oracle Autonomous Linux 7 that is using OSMHNote!!Please register a free account to access the full content and also to participate in Q&A in the community Applies to: Linux OS – Oracle Autonomous Linux 7. Oracle …
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OCI: How to Change the UUID of a XFS FilesystemNote!!Please register a free account to access the full content and also to participate in Q&A in the community Applies To: Linux OS - Oracle Linux 7 and later Oracle Cl…
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After Disabling OS Management Service cannot enable OSMHSummary: We have disabled OSMS using below doc and still facing issue to enable OSMH. https://community.oracle.com/customerconnect/discussion/654635/oci-how-to-disable-t…
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OSMH: Instance Registration Error “failed to start plugin:[oci-osmh] err: Failed to start plugin:Applies To: Oracle Cloud Infrastructure OS Management Hub (OSMH) Autonomous Linux Goal: Attempt to register an Instance with OS Management Hub (OSMH)Autonomous Linux fai…
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OSMH: Enabling OSMH plugin fails with "plugin oci-osmh waits when plugin osms is enabled"NOTE: Please register a free account to access the full content and also to participate in Q&A in the community Applies To: OS Management Hub (OSMH) Version: N/A Linux x…
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dmidecode Reports Incorrect Thread Counts on a VM InstanceNote!! 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 – N/A and later L…
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OCI: Ksplice Update Fails "Ksplice was unable to patch the process due to an internal error"Note!!Please register a freeaccount to access the full content and also to participate in Q&A in thecommunity Applies To: Oracle Linux Cloud Service Oracle Cloud Infrast…
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OCI: DNF/YUM Failure Due to Missing Python Bytecode Files and Broken DependenciesNOTE: 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 Oracle Linux 8 Sy…
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OCFS2-"Checking O2CB cluster "ociocfs2": Offline" is not coming online.Summary: HI Team, We are setting up OCFS2 on OCI Console Compute instance having oel 8 (Red Hat Enterprise Linux release 8.10 (Ootpa) but somehow Cluster is not coming o…
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Oracle Linux - Leapp Pre-Upgrade Fails Due to Unsupported OS VersionApplies To: Oracle Cloud Infrastructure Oracle Linux 7 Symptom: The leap upgrade command #sudo leapp preupgrade --oci for Oracle Linux 7 to Oracle Linux 8 reports the fo…
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OSMH: No Repositories are Listed in the Instance After Enabling the Plugin SuccessfullyNOTE: Please register a free account to access the full content and also to participate in Q&A in the community Applies To: Oracle Linux 7 and later Symptoms Running the…
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OCI: Yum Fails with Error "Unable to detect release version"NOTE: Please register a free account to access the full content and also to participate in Q&A in the community. APPLIES TO Oracle Linux Cloud Service - Version Oracle L…
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OCI: sudo: /etc/<sudo file> is owned by uid 1000, should be 0NOTE: 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 and…
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OCI - Oracle OS Management Service (OSMS) is DeprecatedApplies to: Oracle Cloud Infrastructure OS Management Service OS Management Hub Announcement Date Announced: April 23, 2024 Details: On April 23, 2025, OS Management Ser…
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SELinux Blocking Execution of /usr/lib/oci-linux-config/oci-dhclient.sh on OL9 InstancesNote: 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 – Oracle linux 9…
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OSMH: How to Configure OCI Windows Instance OSMH Agent and Bootstrapper for DebuggingNote!!Please register a free account to access the full content and also to participate in Q&A in the community. APPLIES TO: Windows 2016 and Later Platform x64 GOAL Thi…
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Oracle Linux - auditd Rule Load Failure – Immutable Mode EnabledNote!!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 Linux OS SYMPTOM…
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OCI: How to Subscribe Oracle Linux Extended Support Yum Channels on Oracle Linux 7Applies To Oracle Cloud Infrastructure Oracle Linux Goal: How to subscribe Oracle Linux Extended Support yum channels on Oracle Linux 7 instances running on OCI. Solutio…
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OSMH: How to Filter Advisories by Severity in OS Management HubApplies To: Oracle Cloud Infrastructure OSMH GOAL: To identify advisories with a specific severity (e.g., CRITICAL) in OS Management Hub without manually checking each a…
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OCI: Troubleshooting and Resolving CIFS Mount After Exadata UpgradeApplies To: Oracle Cloud Infrastructure (OCI) Exadata Compute Node running Oracle Linux 8 (Image 24.x) CIFS/SMB Mount Scenarios Symptoms: After upgrading the Exadata ima…
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When will the latest Oracle Linux AMIs be posted on AWS?Summary: The Public AMIs for Oracle Enterprise Linux on AWS are a few minor versions back. When will the latest AMIs be made available? Content (please ensure you mask a…
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OCI:PCP Service pmcd Fails to Start with Error "pmcd.service: Failed with result 'exit-code'"Applies to: Oracle Cloud Infrastructure Oracle Linux 8 and later Symptoms pmcd service fails to start with the following errors. [root@alejanarol9 ~]# systemctl status p…
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OCI: What are the Minimum Required Software Sources for Various Oracle Linux flavours.Applies To: Oracle Linux Cloud Service - Version Oracle Linux 7.0 and later Oracle Cloud Infrastructure Goal This document provides the minimum required software sources…