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OCI: How To Audit User Activities in sudo su – sessionAPPLIES TO Oracle Cloud Infrastructure - Version N/A and later Information in this document applies to any platform. GOAL This document describes how to record command l… -
Oracle Linux: SSH Connection Failure Due to Missing /var/empty/sshd DirectoryApplies To: Oracle Cloud Infrastructure Linux x86-64 Symptoms: Attempts to establish an ssh connection to the instance fail with the following error :ssh_exchange_identi…
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OCI: NFS Mount Point Shows Ownership as "nobody"Applies To: Oracle Linux Cloud Service - Version Oracle Linux 7.0 and later Oracle Cloud Infrastructure Symptoms: NFS mount point shows the below ownership. $ ls -ld /dr…
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OCI: Oracle Linux Instance Fails to Boot with "Warning: /dev/mapper/ocivolume-root does not exist"APPLIES TO Oracle Cloud Infrastructure - Version N/A and later Linux x86-64 SYMPTOMS Oracle Linux 8 Instance fails to boot with error below and dracut shell shows up: [ …
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Oracle Linux: chroot: failed to run command ‘/bin/bash’: Exec format errorAPPLIES TO: Linux OS - Version Oracle Linux 7.0 and later Linux x86-64 SYMPTOMS When attempting to run chroot /mnt on the debug instance resulted in the following error.…
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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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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…
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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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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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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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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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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: 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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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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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 Upgrade Oracle Linux 9 to Oracle Linux 10 using leappNote: 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 Orac…