Oracle Linux
Discussion List
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OSMH: Setting Up Dependency Jobs in OS Management HubAPPLIES TO Oracle Cloud Infrastructure OS Management Hub (OSMH) GOAL Explain job dependency limitations in OSMH. SOLUTION OS Management Hub does not currently support di… -
Oracle Linux: Serial Console Displaying Grub Error "you need to load the kernel first"Applies to: Oracle Cloud Infrastructure Oracle Linux 8 / Oracle Linux 9 Goal: To Restore Oracle Linux to a working state Symptoms: Error messages below are displayed whe…Alejandro Rodriguez L.-Oracle 14 views 0 comments 0 points Started by Alejandro Rodriguez L.-Oracle Linux -
Oracle Linux - Unable to Boot - Warning: /dev/mapper/ocivolume-root does not existApplies To: Oracle Cloud Infrastructure Oracle Linux 7 / 8 / 9 Symptoms: Oracle Linux fails to boot ; Landing in Dracut shell. Console history shows : [ 193.309821] drac…
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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 [[… -
Linux: Tigervnc Configuration Fails With Error "No user configured for display"Applies To: Oracle Cloud Infrastructure Oracle Linux Symptoms: Tigervnc Configuration Fails With Error $ systemctl start vncserver@\:1.service Job for vncserver@:1.servi…
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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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OCFS2 Mount Fails with 'Cluster name is invalid while trying to join the group' ErrorApplies to: Oracle Cloud Infrastructure Linux x86-64 Symptoms: When a secondary network interface is being used for the heartbeat, the OCFS2 service does not mount the s…
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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…Alejandro Rodriguez L.-Oracle 12 views 0 comments 0 points Started by Alejandro Rodriguez L.-Oracle Linux
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OCI Oracle Linux: rescan command is failed on Linux after scaling up disk space from consoleSummary: we need to resize for OCI instance disk space, because /dev/sdb for mount point /u01/install/APPS is 100% full in this case, we are expanding an existing volume…
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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 – Error Updating Package tuned-profiles-oci-2.22.1-4.0.1.el8_10Applies to: Oracle Cloud Infrastructure - Version N/A and later Oracle Linux 8 Symptoms While performing a dnf update, the following error occurs: Error: Problem: packag…
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OCI: Resolving Ksplice Update Failure Due to a Running Modified KernelApplies To: Oracle Cloud Infrastructure Oracle Linux Symptom: When applying Ksplice patches, the following error occurs: Cause: The osquery program was running on the se…
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OCI: uptrack-upgrade Reports "Cannot find Ksplice Uptrack information for your kernel version“Applies To: Oracle Cloud Infrastructure Linux OS Symptoms Running the uptrack-upgrade command reports no updates available as shown below. [root@XXXX ~]# # uptrack-upgra…
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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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Looking for rationale why versioned OSMH sources aren't available for OSMH groupsSummary: I have multiple customers who would love versioned OSMH sources that can be used with OSMH groups. The lifecycle environment approach isn't feasible because we … -
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:Leapp Preupgrade Reports 'Oracle RDMA detected, but OL9 RDMA repository has not been enabled"Applies To: Oracle Cloud Infrastructure Oracle Linux 8 Symptoms The leapp preupgrade for Oracle Linux 8(OL8) to Oracle Linux9(OL9) reports the following risk: /var/log/l…
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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: CIFS VFS: Close unmatched openAPPLIES TO: Oracle Cloud Infrastructure Linux OS SYMPTOMS On the system, /var/log/message log shows below error related to cifs -- cat /var/log/messages|grep -i cifsJan …
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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: OSMH Plugin not available “Plugin OS Management Hub Agent not present for instance ocid”Applies To: Oracle Cloud Infrastructure OS Management Hub (OSMH) Symptoms Oracle Cloud Agent or OS Management shows OS Management Hub agent not available for an existing…
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Oracle Linux - Unable To Access Samba Share Due To Kerberos "Preauthentication failed"APPLIES TO Linux OS - Version Oracle Linux 7.9 and later Linux x86-64 Oracle Cloud Infrastructure SYMPTOMS Unable to access samba share from Linux instance where the beh…
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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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OSMH: The Update Job Fails “Job marked as FAILED by service - timeout 24 hours waiting IN_PROGRESS"Applies To: Oracle Cloud Infrastructure Oracle Linux Symptoms While performing patching of an instance through OSMH, the job fails with below error. Job marked as FAILED…
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OCI- Kdump service is not starting in an Oracle Linux 8 System when secure boot enabledAPPLIES TO Oracle Cloud Infrastructure Linux OS SYMPTOMS Kdump service failed and is not starting up in an Oracle Linux 8 System when secure boot enabled on the system $…
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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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OCI: Kdump Service Fails to Start on Oracle Linux 8 ServerAPPLIES TO: Oracle Cloud Infrastructure Linux OS Symptoms kdump service fails to start with the following error messages. [root@xxxxx ~]#systemctl status kdump ● kdump.s…
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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…