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Linux
Discussion List
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Oracle Linux: Unable to Rename VG with Error “Device /dev/sdb3 has active LVs, deactivate first"APPLIES TO: Oracle Cloud Infrastructure - Version N/A and later Linux x86-64 GOAL: This document is intended to explain why the error “Device /dev/sdb3 has active LVs, d… -
Oracle Linux: After Leapp Upgrade from OL7 to OL8 the Running Kernel is UEK6Applies to: Oracle Cloud Infrastructure - Version N/A and later Oracle Linux 8 Symptoms After a successful upgrade from Oracle Linux 7 to Oracle Linux 8 the runtime kern… -
Oracle Linux: How to Enable an AppStream Module Via DNFApplies To: Oracle Cloud Infrastructure Oracle Linux 8 and above Goal DNF introduces the concepts of modules, streams, and profiles for managing different versions of so…
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OSMH - failed to start osmh-agent with [validate image failed, checksums are not equal]Applies to: Oracle Cloud Infrastructure - Version N/A and later Oracle Linux 7/8/9 Goal: Restore OSMH plugin back to a working state Symptoms: 1. /var/log/oracle-cloud-a…
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Oracle Linux: ASM Drives got Disconnected After System RebootAPPLIES TO: Linux OS–Version Oracle Linux 7.0 to Oracle Linux 9.0 [Release OL7 to OL9] Oracle Cloud Infrastructure - Version N/A and later SYMPTOMS: Oracle Linux instanc…
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OCI: Linux Instance Login Fails with "Network error: Connection refused"Applies to: Oracle Linux Server release 7/8 Symptoms: While attempting to log in to the Linux instance results in the following error: Network error: Connection refused …
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OSMH–Onprem instance registration fails error “The registration attempt failed with HTTP Status 403"Applies to:Oracle Cloud Infrastructure Linux x86-64 Symptoms: The customer is registering on premise client instance with OSMH management station. But failed with the fo…
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OCI: Linux Compute Instance Boots to UEFI SHELL after Removing shim PackageAPPLIES TO: Oracle Cloud Infrastructure Linux x86-64 Symptoms After removing the shim package from an Oracle Linux compute instance to resolve a package conflict encount…
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Oracle Linux-How to Check users percentage of open files, processes and pending signalsAPPLIES TO: Linux OS–Version Oracle Linux 7.0 to Oracle Linux 9.0 [Release OL7 to OL9] Linux x86_64 on Oracle Public Cloud Oracle Cloud Infrastracture GOAL: This documen…
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OCI: Oracle Linux Instance Boot Failed with Error "Warning: /dev/mapper/ocivolume-root does not exisAPPLIES TO: Oracle Cloud Infrastructure Linux x86-64 SYMPTOMS Oracle Linux 8 Instance hosted in OCI fails to boot with error and landing to dracut shell Warning: /dev/ma…
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ALX: Autonomous Linux Patching Notification Email Not Being ReceivedApplies To: Oracle Cloud Infrastructure Autonomous Linux (ALX) OS Management Hub (OSMH) Goal: It was observed that OSMH Autonomous Linux service is not sending email not…
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OCI: mysql RPM Install Fails With Error “/sbin/service is needed by“ on DBCS InstanceApplies To: Oracle Cloud Infrastructure - Version N/A and later Oracle Linux x86-64 (DBCS) Symptoms Unable to install mysql package on DBCS Oracle Linux 8 instances and …
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OSMH: Issues Connecting To Management Agent Cloud Service and Oracle OSMH EndpointsApplies To: Oracle Cloud Infrastructure OS Management Hub (OSMH) Goal For an Oracle Linux client using the FUTURE crypto policy, there are issues negotiating connections…
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Oracle Linux: Leapp Upgrade Failure Due to Immutable Attribute set on Repository filesAPPLIES TO: Linux OS - Version Oracle Linux 7.0 and later Linux x86-64 Oracle Cloud Infrastructure SYMPTOMS: Leapp upgrade fails with below error: Risk Factor: high (err…
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OCI How to disable yum repos from the command lineNote: "Please register a free account to access the full content and also to participate in Q&A in the community” Applies to: Oracle Cloud Infrastructure - Version N/A a…
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OSMH: OCA Agent Service Reports "PAM Account Management Error: Permission Denied" During SudoApplies To: Oracle Cloud Infrastructure Oracle Linux Symptoms: The Oracle Linux instance is not reported under 'OS Management Hub'. Furthermore, the 'oracle-cloud-agent'…
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OCI: Unable to SSH to the instance Following Deletion of Critical System Directory /usr/bin on OL8Applies To: Oracle Cloud Infrastructure - Version N/A and later Linux x86-64 on Oracle Public Cloud Symptoms: In this scenario the system critical directory /usr/bin is …
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Yum remove Fails w/ Error "The operation would result in removing the following protected packages"NOTE: Please register a free account to access the full content and also to participate in Q&A in the community. Applies To: Oracle Cloud Infrastructure - Version N/A an…
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OSMH: OnPrem Instance Registration Failed w/ Error “The Instance did not successfully register ..."Note: Please register a free account to access the full content and also to participate in Q&A in the community Applies To: Oracle Cloud Infrastructure OS management Hub…
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OSMH: dnf update Fails With “Received HTTP code 504 from proxy after CONNECT” in Onpremise instanceNOTE: Please register a free account to access the full content and also to participate in Q&A in the community. Applies to: Oracle Cloud Infrastructure Linux x86-64 Sym…
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Oracle Linux: Leapp Upgrade failed with error “TypeError: read_config() takes exactly 2 arguments"Note: Please register a free account to access the full content and also to participate in Q&A in the community Applies To: Oracle Cloud Infrastructure Oracle Linux x86_…
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OCI Oracle Linux Instance Shows Warning Message “trace_printk() being used. Allocating extra memory"NOTE: Please register a free account to access the full content and also to participate in Q&A in the community. Applies To: Oracle Cloud Infrastructure Oracle Linux x86…
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OSMH: On-Prem Oracle Linux 7 to 8 Leapp upgrade with OSMH Agent Version 3.1.1 or HigherNOTE: Please register a free account to access the full content and also to participate in Q&A in the community. Applies To: Oracle Cloud Infrastructure OS Management Hu…
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OSMH: On-Prem Oracle Linux 8 to 9 Leapp Upgrade with OSMH Agent Version 3.1.1 or HigherNOTE: Please register a free account to access the full content and also to participate in Q&A in the community. Applies To: Oracle Cloud Infrastructure OS Management Hu…
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Oracle Linux: Create a Proxy which Intercepts SSL Connections and Injects its own CertificateApplies To: Oracle Cloud Infrastructure Oracle Linux Goal: The goal is to create a squid proxy which intercepts ssl connections and injects its own certificate. Solution…
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OSMH: On-Prem Software Source is only available in OCIApplies To: Oracle Cloud InfrastructureOS Management Hub (OSMH) Problem: A software source cannot be synced to an on-prem osmh management station, and "Vendor software s…
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Oracle Linux : Unable to rebuild the initramfs with "dracut module 'network-legacy' cannot be found"Note: "Please register a free account to access the full content and also to participate in Q&A in the community” APPLIES TO: Oracle Linux 8 (x86_64) Oracle Linux 9 (x86…
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OSMH: OL7 Job Update Process Fails with Error “package ksplice-tools is not installed”Note: "Please register a free account to access the full content and also to participate in Q&A in the community” APPLIES TO: Linux OS– Oracle Linux 7.0 and later Oracle…
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OSMH : Quick Setup Of OSMH For OCI InstancesApplies To: OS Management Hub Oracle Cloud Infrastructure Autonomous Linux Goal: To Setup OS Management Hub on a newly created OCI instance or an existing OCI instance. …
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OCI: leapp upgrade failed with error: file #### from install of ####Applies To: Oracle Cloud Infrastructure - Version N/A and later Linux x86-64 on Oracle Public Cloud Symptoms: Leapp upgrade from OL7 to OL8 fails with below error and th…
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Oracle Linux - Remove debris from /var/cache/uptrack directoryAPPLIES TO: Oracle Cloud Infrastructure - Version N/A and later Linux x86-64 GOAL: This document explains how clean the Ksplice cache directory, the UEK kernel is instal…
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create mount pointSummary: Content (please ensure you mask any confidential information): Version (include the version you are using, if applicable): Code Snippet (add any code snippets t…
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OSMH: Windows Instance Showing "there is no updates available" In OSMH ConsoleApplies To: Oracle Cloud Infrastructure OS Management Hub (OSMH) Goal On the OSMH console, it shows "there is no updates available" But from the Windows Update in OS sid…
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OCI: Application error: "invalid SSH version: OpenSSH version must be greater or equal to <number>"Applies To: Oracle Cloud Infrastructure - Version N/A and later Oracle Linux x86-64 Symptoms: While executing a 3rd party application in a Oracle Linux 9 instance in OCI…
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Oracle Linux: SSHD Service Failed Start With Error "sshd[ ]: OpenSSL version mismatch."APPLIES TO Oracle Cloud Infrastructure Oracle Linux SYMPTOMS The SSH service cannot come up with below error. --$ journalctl -xeu sshd.service sshd[37600]: OpenSSL versi…
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Oracle Linux – OSMH Update Fails due to OL7 Package Dependency ConflictAPPLIES TO: Oracle Cloud Infrastructure OS Management Hub (OSMH) SYMPTOMS: OSMH update job fails with the following error: exit status 1: Error: transaction check vs dep…
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Oracle Linux - How to Allow new users or existing user login via SSHApplies to: Oracle Linux 7 to Oracle Linux 9 Linux x86_64 on Oracle Public Cloud Goal: This document is intended to provide steps to allow new users or existing users(be…
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Oracle Linux: How To Change Default Module StreamApplies to: Oracle Cloud Infrastructure Oracle Linux 8 and Later Goal: This document explains steps to change default module stream. Solution: By default, the dnf utilit…
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OL8: How To List All Modules via DNF in OL8 And Check If They Are Enabled or Disabled?Applies to: Oracle Cloud Infrastructure Oracle Linux 8 and Later Goal Oracle Linux 8 (OL8) distributes sets of related RPM packages that form a logical unit (such as dif…
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OCI: How to Configure Static Routes at Boot Time in Oracle LinuxAPPLIES TO Oracle Cloud Infrastructure - Version N/A and later Linux x86-64 GOAL This document describes how to configure static routes at boot time in Oracle Linux. SOL…
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OCI: Oracle Linux Instances Can Observe High Usage Inside /var/tmpApplies To: Linux x86-64 Oracle Cloud Infrastructure Symptoms: Frequently, on Oracle Linux instance, the /var/tmp directory can be seen as taking up a lot of space. Caus…
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Oracle Linux - Cannot find Ksplice Uptrack information for your kernel versionAPPLIES TO: • Oracle Linux running UEK kernel • Systems using Ksplice and managed by OSMH SYMPTOMS: Ksplice fails with the following error during patching or OSMH job: e…
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OCI: OL7 Leapp Preupgrade Shows Error “Inhibitor (High) for BTRFS RAID detected” in the LogfileAPPLIES TO: Oracle Cloud Infrastructure Linux x86-64 SYMPTOMS While performing the pre-upgrade check for an OL7 instance before upgrading to OL8 via leapp, the following…
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OCI: Resizing the EXT filesystem fails with “resize2fs: Permission denied to resize filesystem"Applies To: Oracle Linux Cloud Service - Version Oracle Linux 6.0 and later Oracle Cloud Infrastructure Information in this document applies to any platform. Symptoms: R…
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OSMH – Reboot needed flag doesn’t show yes after the patching on OSMH instancesAPPLIES TO Oracle Cloud Infrastructure Linux x86-64 SYMPTOMS The customer applied patches (yum/dnf update) via OSMH. But reboot needed flag doesn’t show ‘yes’ CAUSE OSMH…
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OCI: Unable to Remove Python2 Packages After Upgrading from OL7 to OL8Applies To: Oracle Cloud Infrastructure Oracle Linux 8 Symptoms: Attempting to remove python2 rpm using DNF results in a dependency error: #sudo dnf remove python2 Error…
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OCI: Memory discrepancy for the Linux Instance between OCI console and the ‘free’ OutputApplies To: Oracle Cloud Infrastructure Oracle Linux Symptoms Below are the instance details on the OCI Console: "Shape":"VM.Standard.E2.1.Micro", "OCPUs":1,"Memory (MB)…
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Issue with apt-get on Ubuntu 22.04 LTS running on ARM64 (Ampere) platformI have been running Ubuntu 22.04 LTS instance on ARM64 Ampere platform for a while and kept Ubuntu up to date using the following command: sudo bash -c 'for i in update …
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Unable to connect to Oracle Linux 7.9 using the serial console connection for cloud sheelHi Team, We are trying to reset the key pair for opc user and following the document from Oracle i.e. Troubleshooting Instances Using Instance Console Connections but wh…
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OCI: DST Timezone Change is Not Taking Effect on Linux InstancesApplies To: Oracle Cloud Infrastructure Oracle Linux Symptoms: After the Daylight Saving Time (DST) transition, the system time on OCI Linux instances remains unchanged …
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OCI: How To Convert iptables to nftablesApplies to: Oracle Cloud Infrastructure Linux x86-64 Oracle Linux 8 and above Goal: This document outlines the steps required to convert iptables rules to use nftables. …
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How To Change OSMH checkUpdatesInterval valueApplies To: Oracle Cloud Infrastructure OS Management Hub (OSMH) Goal: How to : How To Change OS Management Hub checkUpdatesInterval value. Solution: The default checkUp…
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OCI: sudo Dails in Ubuntu Instance with "sudo: /etc/sudo.conf is owned by uid 1001, should be 0”APPLIES TO: Oracle Cloud Infrastructure - Version N/A and later Linux x86-64 SYMPTOMS Unable to run sudo using ubuntu user in OCI ubuntu instance ubuntu@:~$ sudo su - su…
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OCI: Instance Reporting iscsi Error "Connection Failed, Connection Refused"Note: "Please register a free account to access the full content and also to participate in Q&A in the community” Applies to: Oracle Cloud Infrastructure Linux x86-64 Sy…
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OSMH: Available ELSA/ELBA or Updates Missing From a Managed InstanceNote!!Please register a free account to access the full content and also to participate in Q&A in the community Applies To: Oracle Cloud Infrastructure OS Management Hub…
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OSMH: Management Agent Installation Fails with Error: "Job for mgmt_agent.service failed"Note!! Please register a free account to access the full content and also to participate in Q&A in the community Applies To: Oracle Cloud Infrastructure - Version N/A an…
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OCI: YUM Commands Fails with Error “ ImportError: libgnutls.so.30: cannot open shared object file"Applies To: Oracle Cloud Infrastructure Oracle Linux Symptoms: While performing the commands like yum, its fails with the following error: [root@localhost ~]# yum repoli…
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OSMH: "Plugin oci-osmh waits when plugin osms is enabled."Note!! Please register a free account to access the full content and also to participate in Q&A in the community Applies To: Oracle Cloud Infrastructure OS Management Hu…
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OCI: Error “systemd[1]: Started Crash recovery kernel arming” in the System LogsNote!! Please register a free account to access the full content and also to participate in Q&A in the community Applies To: Oracle Cloud Infrastructure Oracle Linux Sym…
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OCI: How to Configure Password Authentication in Oracle Linux 9Note!! Please register a free account to access the full content and also to participate in Q&A in the community Applies To: Oracle Cloud Infrastructure Oracle Linux 9 G…