Linux
Discussion List
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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… -
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: /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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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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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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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: 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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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: 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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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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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…
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OCI: Mounting NFS Filesystem Fails With Error "mount.nfs No such device."Applies To: Oracle Cloud Infrastructure Linux OS Symptoms: Unable to mount NFS share, getting this error: # mount x.x.x.x:/NFS/Share /mountpoint -vvv ... mount.nfs: time…
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restoring block volme to new serverHi Experts, This is a compute machine having OracleLinux 8 version of os. We have a created a block volume from block volume backup. We are attaching it to new instance …
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Linux: How To Authenticate docker/Podman CLI Using Auth Token Feature in Oracle Container RegistryApplies to: Linux OS Oracle Cloud Infrastructure Goal This document provides details about Auth Token feature in Oracle Container Registry and how to generate, delete et…
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OCI: Autonomous Linux Patching Fails due to conflicts with Firefox PackageApplies to: Linux OS - Version Oracle Linux 7.9 and later Linux x86-64 Symptoms: Autonomous Linux patching fails with following error file /usr/bin/firefox from install …
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Linux: Resolving "/lib64/libstdc++.so.6: version 'GLIBCXX_3.4.xx' not found" ErrorApplies to: Oracle Cloud Infrastructure Linux x86-64 Symptoms: When attempting to install or run an application, you may encounter errors similar to the following: /lib6…
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Linux: Installing 3rd Party Package Fails with Missing Dependency Errors for libc.so.6Applies To: Oracle Cloud Infrastructure Oracle Linux ARM64 Symptom Installing a 3rd party RPM package in Oracle Linux 7 OCI instance results in dependency errors: $ rpm …
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Oracle Linux : Re-configuring Curl to Use OpenSSL Instead of NSS on Oracle Linux Servers.Applies To: Oracle Cloud Infrastructure Oracle Linux Goal: This document outlines the support status of Curl usage with OpenSSL instead of NSS on Oracle Linux servers. S…
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Unable to login to Linux/Ubuntu using SSH Don't have SSH KeysSummary: Having trouble logging into Linux/Ubuntu using SSH. I no longer have access to my laptop that had the SSH keys. Tried to follow "Oracle Linux – How to set up a …
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Oracle Linux - Leapp Upgrade Fails due to python3-pyasn1-0.3.7-6.el8.noarch packages conflictApplies to: Oracle Linux 7 Symptoms: Oracle Linux 7 to Oracle Linux 8 Leapp Upgrade Fails due to python packages conflict. Leapp upgrade report shows: Risk Factor: high …
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Oracle Linux - ssh_genkeytypes set to null in /etc/cloud/cloudApplies To: Oracle Cloud Infrastructure Oracle Linux Symptoms: While performing an update by executing sudo yum update this message is shown: warning: /etc/cloud/cloud.c… -
How to Use top Command to Check Swap UsageApplies to: Oracle Cloud Infrastructure - Version N/A and later Linux x86-64 Goal: This document outlines the steps required to use the top command to check swap usage f…
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OCI : How To Manually Install Oracle-Cloud-Agent on Ubuntu InstanceApplies to: Oracle Cloud Infrastructure - Version N/A and later Linux x86-64 Goal: This document explains steps to Install Oracle-Cloud-Agent on Ubuntu Instance. Solutio…
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OCI : dnf Command Fails with Error “/lib64/librpm.so.8: file too short”Applies to: Oracle Cloud Infrastructure - Version N/A and later Linux x86-64 Symptoms: Below error is seen while running the dnf update command. [root@xxxx]# dnf update …
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OCI: sftp or ssh Connections Failing With "ssh_exchange_identification: Connection closed by remote"Applies To: Oracle Cloud Infrastructure Linux OS Symptoms: Intermittently unable to ssh to the server. The following error shows: # ssh server.example.com ssh_exchange_i…