Category 631
Discussion List
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Oracle Linux: sysctl Command Hangs While Increasing HugepagesApplies To: Oracle Cloud Infrastructure Symptom: The sysctl command hangs when attempting to increase the number of hugepages. Cause: The system's memory has become frag… -
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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RSA Key pair generation in windows 11 for Object storage connectivitySummary: Hi Team, we are trying to generate RSA Key pairs(public and private) to add an api key to OCI that enables connectivity to Object storage from OIC. We were usin…Kasthuri Haridass-Oracle 1 view 0 comments 0 points Started by Kasthuri Haridass-Oracle OCI - General
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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…Baisakhi Mahapatra -Oracle 128 views 0 comments 0 points Started by Baisakhi Mahapatra -Oracle Linux
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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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Unable to SSH to ubuntu EC2 instance.Summary: After restarting the EC2 instance from OCI console. I'm not able to access it through SSH and getting following error "Network error: Connection timed out". But…
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Oracle Linux yum/dnf Diagnostic GuideApplies To: Oracle Linux 8 and 9 Goal: This is a guide to diagnose common YUM/DNF problems. Solution: Known problem and solution for DNF/Yum. DB Corruption Refer to disc…
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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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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- 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…
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Oracle Linux - How to troubleshoot NFS mount timeout?APPLIES TO: Oracle Cloud Infrastructure Linux OS SYMPTOMS When attempting to mount an NFS share, the connection times out or says no route to host. Example: mount.nfs: m…
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OSMH: Instance Configuration Failed With Error “Invalid Managed Instance archType”Applies To: OS Management Hub (OSMH) Oracle Cloud Infrastructure Symptoms OSMH Instance registration failed with error: ERROR: failed to update managed instance: Error r…
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OSMH: The Jobs Failing With [Errno 14] HTTPS Error 404 - Not Found Trying Other Mirror.APPLIES TO Oracle Cloud Infrastructure Oracle Linux OSMH SYMPTOMS While migrating from OSMS to OSMH, the jobs are failing with below error. $ yum repolist Loaded plugins…
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OCI: Yum Update fails due to Incorrect Plugin ConfigurationApplies To: Oracle Cloud Infrastructure - Version N/A and later Linux x86-64 Symptoms: Unable to perform yum update due to legacy configurations in place. $ sudo yum upd…
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OCI: Unable To Update kernel-uekApplies to: Oracle Cloud Infrastructure Linux x86-64 Symptoms Performing command to update only kernel-uek does not do anything $ sudo yum update kernel-uek Dependencies…
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OSMH: High CPU usage for Windows osmh ProcessApplies to: Oracle Cloud Infrastructure - Version N/A and later Windows 2016 and Above Symptoms There is a high CPU load on the OSMH managed instance. The top 10 CPU hog…
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OCI : YUM Command Fails with Error “No module named sqlitecachec”Applies to: Oracle Cloud Infrastructure - Version N/A and later Linux x86-64 Symptoms The below error is seen while running the dnf update command. [root@xxxx]# yum Ther…
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OCI: SELinux Unable to relabel filesystemApplies To: Oracle Cloud Infrastructure Linux x86-64 Symptoms: Unable to login to the instance due to issues with selinux labels. Multiple "avc: denied" messages detecte…
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PV versus iscsiHi Team, Can some one help us yo verify whether our storage is iscsi or PV from below output. [root@restore ~]# dmesg | grep -i iscsi [ 0.000000] Command line: BOOT_IMAG…
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OCI Linux: Not Able Access Instance due to /etc Directory Permission Change (chmod -R 777 /etc)Applies to: Linux OS - Version Oracle Linux 7.9 and later Linux x86-64 Symptoms: /etc directory permission was accidentally changed to 777 by running command below and u…
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Oracle Linux: Resolving VM Hang Due to Memory Exhaustion Caused by Fluentd OOM ErrorsApplies To: Oracle Cloud Infrastructure Linux OS Symptoms: The VM became inaccessible via PuTTY/SSH and appeared to hang. Critical processes (such as SSSD for authentica…