Linux
Discussion List
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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 … -
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 154 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 12 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 …
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OCI: How to Deallocate HugepagesApplies to: Oracle Cloud Infrastructure - Version N/A and later Linux x86-64 Goal: This document outlines the steps required to deallocate Hugepages if they are not bein…
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Oracle Linux - Postfix - showq: bad command startupAPPLIES TO: Oracle Linux 7 to Oracle Linux 9 Linux x86_64 on Oracle Public cloud SYMPTOMS: The command mailq hangs and no output is sent STDOUT. $sudo systemctl status p…
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OLAM: SSH Connectivity Issues From OLAM WebUI to Managed Hosts With Error "No route to host"APPLIES TO: Linux OS – Version Oracle Linux 8.0 to Oracle Linux 9.0 Linux x86_64 SYMPTOMS: ssh connectivity from "OLAM" WebUI to managed hosts while running playbook fai…
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OCI- Unable to ssh to instance with error "[FAILED] Failed to start Login Service"APPLIES TO: Oracle Cloud Infrastructure Linux OS SYMPTOMS Console history shows below error : [FAILED] Failed to start Login Service. See 'systemctl status systemd-login…
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OCI: Unable to Start pmcd.service with "status=2/INVALIDARGUMENT"Applies To: Oracle Cloud Infrastructure - Version N/A and later Linux x86-64 Symptoms: pmcd.service failed to start. From the "journalctl" output, it revealed an error m…
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OSMH: Instance Registration Failed with Error “Http Status Code: 404. Error Code: NotAuthorizedOrNotAPPLIES TO OS Management Hub (OSMH) Oracle Cloud Infrastructure SYMPTOMS Enabling OSMH Plugin fails with error below: failed to start osmh-agent with lookup image failed…
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OSMH: Managed Instance Fails to Download Packages with Error "Status code: 502"Applies To: OS Management Hub (OSMH) Oracle Cloud Infrastructure Information in this document applies to any platform. SYMPTOMS The OSMH managed instance is registered w…
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OCI: Yum/DNF Command Failed With Error "Curl error (6): Couldn't resolve host name for https://yum..APPLIES TO Oracle Cloud Infrastructure Linux OS SYMPTOMS “yum” command fails as it cannot resolve the URL contained in the “repo” file $ yum update Oracle Linux 8 BaseOS…Baisakhi Mahapatra -Oracle 468 views 0 comments 0 points Started by Baisakhi Mahapatra -Oracle Linux
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Oracle Linux – "ls -l or du" Commands Hung in NFS ShareAPPLIES TO: Linux OS – Version Oracle Linux 7.0 to Oracle Linux 9.0 [Release OL7 to OL9] Linux x86_64 on Oracle Public Cloud SYMPTOMS: NFS share mounted on Oracle Linux …
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OCI: How to Disable IPv6 on Oracle LinuxApplies To: Oracle Linux Cloud Service - Version Oracle Linux 7.0 and later Oracle Cloud Infrastructure Goal: This document explains steps to disable IPV6 in Oracle Linu…
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OCI: Sudo Fail With Error "sudo:unable to write log file:/var/log/sudo.log: No space left on device"APPLIES TO: Linux OS Oracle Cloud Infrastructure SYMPTOMS: Oracle Linux instance with no space left in the root filesystem “/” showing up sudo errors: $ sudo su - sudo: …
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OCI: Non-Root User Unable to Create Files in OCIFS FilesystemApplies to: Oracle Cloud Infrastructure Linux x86-64 Symptoms For this case, the bucket name is bucket1 and is mounted on /ocifsmnt filesystem. Non-root user "opc" is un…
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OCI - Error messages in log file /var/log/messages "scsid: iscsid: session with sid 1 not found"Applies To Oracle Cloud Infrastructure Linux OS Symptoms var/log/message file is showing below messages multiple times. $ cat /var/log/message: iscsid: iscsid: session w…
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OCI/Linux – faillock Command Does Not Display AnythingApplies To: Oracle Cloud Infrastructure Linux OS Symptoms: faillock(8) command does not display any output for individual users. [root@XXXX ~]# faillock [root@XXXX ~]# C…