Linux
Discussion List
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How To Setup Cluster NFS Service with LVM For Corosyn&PacemakerApplies to:Corosync/Pacemaker Oracle Linux 8 and 9 Goal: This Document will describe how to setup a clustered NFS service on a Corosync/Pacemaker cluster using shared st… -
OCI - How to Avoid the Prelogin Messages on SSH Session: ssh opc@x.x.x.x “\S Kernel \r on an \m"APPLIES TO: Oracle Cloud Infrastructure Oracle Linux x86_64 SYMPTOMS: When using ssh to log in to a server, the following messages are showing before password prompt. lo…
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Oracle Linux Cloud Developer 8 compute instance image on OCI always free refuses ssh connectionSummary: Hello, I am having trouble connecting to a newly created compute instance of Oracle Linux Cloud Developer 8. I have waited about 30 minutes and still cannot con…
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Oracle Linux: Resolving Missing Repositories During Oracle Linux 7 to 8 Upgrade Using LeappApplies to: Linux OS - Version Oracle Linux 7.9 Linux x86-64 Symptoms: After running the `leapp preupgrade --oci` command, the following errors and inhibitors appear in …
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OCI: How To Install Tomcat on Oracle LinuxApplies to: Oracle Cloud Infrastructure – Linux OS - Version Oracle Linux 7.0 and later Goal Steps for installing Tomcat and Apache on Oracle Linux Solution For Oracle C…
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Steps to changing the SSH port on Ubuntu and Oracle Linux compute instance on OCI Always Free?Summary: Attempting to change the SSH port on a newly created instance of Oracle Linux vm on the Oracle Cloud Infrastructure (OCI) Always Free tier using the VM.Standard…
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OSMH: “The registration attempt failed due to java.net.SocketException: Connection reset”Applies To: OS Management Hub (OSMH) Oracle Cloud Infrastructure Symptoms: OSMH On-Prem client instance registration failed with error below: # /opt/oracle/mgmt_agent/ag…
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OCI: YUM Commands Fail with KeyError: 'X-RHN-Auth-Expire-Offset'Applies to: Oracle Cloud Infrastructure - Version N/A and later Linux x86-64 Symptoms: When attempting to execute yum commands such as 'yum update -y', the following err…
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Oracle Linux: Post Leapp Upgrade, Server Gets Stuck During Final Reboot.APPLIES TO: Oracle Cloud Infrastructure Oracle Linux SYMPTOMS: Leapp Pre-Upgrade and Upgrade steps where successfully completed, no errors or unexpected inhibitors repor…
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OCI : Docker Service Failing To Start After Leapp Upgrade from OL7 to OL8Applies to: Oracle Cloud Infrastructure - Version N/A and later Linux x86-64 Symptoms Docker service Start Failing with below error [root@xxxx ~]# systemctl status docke…
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OCI: Instance Stuck at Boot Showing TianoCore LogoApplies To: Oracle Cloud Infrastructure - Version N/A and later All Platforms Symptoms: Instance is unreachable and rebooting it does not restore access. Instance detail…
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OCI – How To Open Network Ports in UbuntuApplies to: Oracle Cloud Infrastructure Linux x86-64 Goal: In OCI Ubuntu instances (image Ubuntu-22.04) opening anetwork port in UFW don’t work. Solution: Note: Ubuntu i…
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OCI : Network Service Fails To Start with Error "No such file or directory" and "command not found"Applies to: Oracle Cloud Infrastructure - Version N/A and later Oracle Linux x86-64 Goal To start the network service successfully without failure Symptoms Below error i…
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OCI: "mount: /mnt: unknown filesystem type 'LVM2_member'APPLIES TO: Oracle Cloud Infrastructure Linux OS - Version Oracle Linux 8.0 and later SYMPTOMS When attempting to mount a boot volume backup attached as an additional vo…
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OCI: How to Check if DBCS is Using iSCSI or Paravirtualized StorageApplies To Oracle Cloud Infrastructure Linux OS - Version Oracle Linux 7.0 and later Goal To verify whether a (DBCS) instance in Oracle Cloud Infrastructure (OCI) is uti…
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OCI - Server Hangs Due To Third Party McAfee Module "mfe_fileaccess"APPLIES TO Oracle Cloud Infrastructure Linux OS SYMPTOMS Server hangs due to third party McAfee module "mfe_fileaccess" CAUSE Server hangs with below Call Trace from mes…
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OSMH: Failed to Update tuned-profiles-oci Packages in OCIApplies to: Oracle Cloud Infrastructure Oracle Linux 7 or 8 OS Management Hub Symptoms When updating packages in Oracle Linux using OSMH, the following error is seen: pa…
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OCI – Problem with glibc libraries - relocation errorApplies to: Oracle Cloud Infrastructure - Version N/A and later Linux x86-64 Symptoms $ sudo ls -ltr /lib64l/ibc.so.6* ls: relocation error: /lib64/libc.so.6: symbol _dl…
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OCI: OSMH Unable to Promote Software Source to a Lifecycle StageApplies To Oracle Cloud Infrastructure - Version N/A and later Linux x86-64 Symptom Unable to promote a software source to Lifecycle stage as shown below. Cause Software…
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OCI: Incorrect permissions on pacct fileApplies To: Oracle Cloud Infrastructure - Version N/A and later Linux x86-64 Symptoms: Users are able to list and run ”lastcomm” command that should be disallowed by def…
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OCI: sar Command Fails After Leapp UpgradeAPPLIES TO: Oracle Cloud Infrastructure Linux OS SYMPTOMS The sar command fails after upgrading the OS via Leapp utility: # sar Invalid system activity file: /var/log/sa…
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OCI - Instance Unable to Boot Due to Missing Symlinks (softlinks)Applies to: Oracle Cloud Infrastructure - Version N/A and later Linux x86-64 Symptoms The system fails to boot and the following is seen at the serial console: [ OK ] St…
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linux dns nameSummary: use another dns name instead of. .subnet.vcn.oraclevcn.com Content (please ensure you mask any confidential information): hi all we have an dns name , lets say … -
OCI: Leapp Upgrade Fails with the Error "DNF execution failed with non zero exit code"Applies To Oracle Cloud Infrastructure - Version N/A and later Linux OS - Version Oracle Linux 7.0 and later Symptoms: Leapp upgrade from Oracle Linux 7 to Oracle Linux …
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OCI: Why Do I see ocid.service accessing Public IPs In OCI Linux InstanceApplies To: Oracle Cloud Infrastructure Linux x86-64 Goal Need to know why ocid.service is accessing public IPs in OCI Linux Instance Symptoms Confirm what service is ac…
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OCI: Server Fails to Boot due to File System CorruptionApplies To Oracle Cloud Infrastructure Linux OS Symptoms Due to block volume file system corruption, access to the instance fails and the server fails to come up after r…
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Oracle Linux: "mount error(2): No such file or directory CIFS VFS: cifs_mount failed w/return code"Applies to: Oracle Cloud Infrastructure - Version N/A and later Linux OS - Version Oracle Linux 7 and later Linux x86-64 Symptoms Mounting CIFS filesystem fails with fol…
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OCI : OS Image Version not Updated On Instance Details Page after Leapp UpgradeApplies to: Oracle Cloud Infrastructure - Version N/A and later Linux x86-64 Symptoms: The Instance image version is not updating on Instance Details Page in OCI after L…
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OCI: leapp Upgrade Fails Due to Incorrect Directory StructureAPPLIES TO Oracle Cloud Infrastructure - Version N/A and later Linux x86-64 SYMPTOMS The leap upgrade fails and upon checking the leap-report.txt, the following is seen:…
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oci-network-config show oci-network-config: command not foundSummary: Content (please ensure you mask any confidential information): Version (include the version you are using, if applicable): Code Snippet (add any code snippets t…