Linux
Discussion List
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OCI: How To Disable IPv6 Listening on Port 80 for NginxApplies To: Oracle Cloud Infrastructure Linux x86-64 Goal: In a OCI Oracle Linux instance where both IPv4 and IPv6 are enabled by default, when installing and starting n… -
How to Mount Object Storage Bucket as Filesystem During the Boot Using fstab EntryApplies To: Oracle Cloud Infrastructure Oracle Linux (All Platforms) Goal This document explains steps to mount object storage bucket as a filesystem using the /etc/fsta…
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OCI: How to Use sudo/su in Combination with xhost and x11forwardingApplies to Oracle Cloud Infrastructure Linux OS - Version Oracle Linux 7.0 to Oracle Linux 7.9 [Release OL7 to OL7U9] Linux x86-64 Goal How to use sudo/su in combination…
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Oracle Linux – How to rollback an OSMH updateAPPLIES TO: Oracle Cloud Infrastructure OS Management Hub Linux OS GOAL: How to rollback an OSMH update. SOLUTION: Even when using OSMH for packet management and securit…
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OCI: Java Version shows Different than What is Installed on the SystemApplies To: Oracle Cloud Infrastructure - Version N/A and later Linux x86-64 on Oracle Public Cloud Symptoms: The java version shows 1.8.0_401-b10 but installed package …
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OCI – Image Builder - build failureAPPLIES TO: Linux OS – Version Oracle Linux 8 Linux x86_64 on Oracle Public Cloud SYMPTOMS: The following is observed in OS journal logs in regards to the osbuild-compos…
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OCI: RPM Rebuild Fails With Error "warning: waiting for transaction lock on /var/lib/rpm/.rpm.lock"Applies To: Oracle Cloud Infrastructure - Version N/A and later Linux x86-64 Symptoms: Rebuilding RPMDB gets this error: # rpm --rebuilddb warning: waiting for transacti…
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OCI: How To Retrieve RPM Information Using RepoWatchApplies to: Linux x86-64 Goal This document provides more details on how RepoWatch can be used to retrieve RPM information. Solution The RepoWatch uses the yum repo meta…
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OCI - How to Install mysql-shell v8.4Applies to: Oracle Cloud Infrastructure - Version N/A and later Linux x86-64 Oracle Linux 8 or later version Goal: This document outlines the steps required to enable th…
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OCI - OSMH Unable to Register Instance due to "No Profile Available"Applies to: Oracle Cloud Infrastructure - Version N/A and later Linux x86-64 Oracle Linux 7 Symptoms While attempting to register an OCI instance with OSMH via the Conso…
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perl -V Command Fails with "Can't locate Config.pm: /usr/local/lib64/perl5/Config.pm"APPLIES TO Oracle Cloud Infrastructure - Version N/A and later Linux x86-64 on Oracle Public Cloud SYMPTOMS perl -V command fails with error below: root@test# Perl -V Ca…
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oracle network latency linuxSummary: Oracle network latency Content (please ensure you mask any confidential information): Hi all , we have all of our infrastructure on frankfurt center ( eu-frankf… -
OSMH : Profile not Listed for Instance Upgraded using LeappApplies to: OS Management Hub - Version OS Management Hub 2.0 to OS Management Hub 2.0 [Release OSMH2] Linux x86-64 Symptoms On OSMH, matching OS version profiles not li…
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OCI - How to Recover Ubuntu Instance SSH AccessApplies to: Oracle Cloud Infrastructure - Version Ubuntu 22.04 and later Goal: This CCC document is intended to explain how to recover Ubuntu instance's SSH access if no…
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Crontab entry is failingApplies to: Oracle Cloud Infrastructure - Version N/A and later Linux x86-64 Symptoms A crontab entry looks like this, it can refer to any command, in this example, the …
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OCI: pam_lsass Can Deny Users Login Access with Denied AccessApplies To: Oracle Cloud Infrastructure - Version N/A and later Linux x86-64 Symptoms: Local and AD users cannot login even with the correct credentials. Login attempts …
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OCI: Warning “systemd-udevd: worker /devices/virtual/block/dm-x is taking a long timeApplies To: Oracle Cloud Infrastructure Oracle Linux x86_64 Symptoms: Seeing following intermittent warning in /var/log/messages. There is no system performance issue no…
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OCI : Grubby commands fail with error "/usr/bin/grub2-editenv: error: invalid environment block"Applies to: Oracle Cloud Infrastructure - Version N/A and later Linux x86-64 Oracle Linux 8 – Oracle Linux 9 Symptoms: Failed to change the default kernel [root@xxxx ~]#…
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OCI: Daylight Saving Time Not working on Instance With TimeZone “Africa/Cairo (EET, +0200)”APPLIES TO: Oracle Cloud Infrastructure Linux x86-64 Symptoms Daylight Saving Time changes are not taking effect in one of the instances whereas other instances are show…
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Oracle Linux – Oracle Linux is not able to mount a NFS ShareApplies to: Oracle Cloud Infrastructure Linux x86-64 Goal: Mount a NFS Share not working on an Oracle Linux system. NFS Server and NFS Client are in the same Network Seg…Alejandro Rodriguez L.-Oracle 142 views 0 comments 0 points Started by Alejandro Rodriguez L.-Oracle Linux -
OCI: Password Authentication on Ubuntu Throws Error: No supported authentication methods availableApplies To: Oracle Cloud Infrastructure - Version N/A and later Linux x86-64 on Oracle Public Cloud Symptoms: On Ubuntu 20.04, if the parameter “PasswordAuthentication y…
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OCI: How To Relocate Logical Volumes To A New Block Volume And Increase The SizeApplies to: Oracle Cloud Infrastructure Linux x86-64 Goal: Move a Logical Volume to a new block volume and grow the same filesystem Solution: Execute below steps as root…Alejandro Rodriguez L.-Oracle 11 views 0 comments 0 points Started by Alejandro Rodriguez L.-Oracle Linux
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OCI - How to Create a Recovery Instance for use in OL8 Boot Volume RecoveryApplies to: Oracle Cloud Infrastructure - Version N/A and later Linux x86-64 Oracle Linux 8 Goal: This document outlines the steps required to create a temporary Oracle …
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OCI: SAR report “/var/log/sa/” not generating after upgrading instance to Oracle Linux 8APPLIES TO: Oracle Cloud Infrastructure Linux x86-64 SYMPTOMS Why is SAR report “/var/log/sa/” not generating after upgrading to OL8? CAUSE Required sysstat services are…
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OCI: Instance Crashes After Exiting From Single User ModeApplies to: Oracle Cloud Infrastructure Linux x86-64 Symptoms After booting to single user mode by adding "init=/bin/bash" to the kernel command line. On finishing the s…
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OCI: After OL8 upgrade instances becomes inaccessible in network and need a rebootAPPLIES TO: Oracle Cloud Infrastructure Linux x86-64 SYMPTOMS After upgrading the instance from OL7 to OL8, the instance is not accessible via ssh frequently and it must…
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OCI: Instance Unable to boot with error “Warning: /dev/mapper/ocivolume-root does not exist”APPLIES TO Oracle Cloud Infrastructure Linux x86-64 SYMPTOMS Instance is not booting after a reboot, and it reports error below in the console log [ 208.548561] dracut-i…
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OCI: Differences in Size Reported by Object Storage Bucket "s3fs" in OL7 and OL9 Instance.APPLIES TO: Oracle Cloud Infrastructure - Version N/A and later Linux x86-64 GOAL: Difference in the size reported by the object storage bucket "s3fs" in Oracle Linux 7 …
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Oracle Linux - OCI-How To Run a xfs_repair On a non-root FilesystemApplies to: Oracle Cloud Infrastructure - Version N/A and later Linux x86-64 Goal: If an XFS file system cannot be mounted, the xfs_repair command can be used to repair …