Category 631
Discussion List
-
Unable to SSH to ubuntu EC2 instance.Summary: After restarting the EC2 instance from OCI console. I'm not able to access it through SSH and getting following error "Network error: Connection timed out". But… -
Oracle Linux yum/dnf Diagnostic GuideApplies To: Oracle Linux 8 and 9 Goal: This is a guide to diagnose common YUM/DNF problems. Solution: Known problem and solution for DNF/Yum. DB Corruption Refer to disc…
-
OCI: OSMH Plugin not available “Plugin OS Management Hub Agent not present for instance ocid”Applies To: Oracle Cloud Infrastructure OS Management Hub (OSMH) Symptoms Oracle Cloud Agent or OS Management shows OS Management Hub agent not available for an existing…
-
Oracle Linux - Unable To Access Samba Share Due To Kerberos "Preauthentication failed"APPLIES TO Linux OS - Version Oracle Linux 7.9 and later Linux x86-64 Oracle Cloud Infrastructure SYMPTOMS Unable to access samba share from Linux instance where the beh…
-
OCI: Oracle Linux Instance Stops With “reboot: Power down” After BootApplies to: Oracle Cloud Infrastructure - Version N/A and laterLinux x86-64 Symptoms System stops immediately after booting: [[0;32m OK [0m] Stopped Monitoring of LVM2 m…
-
OSMH: The Update Job Fails “Job marked as FAILED by service - timeout 24 hours waiting IN_PROGRESS"Applies To: Oracle Cloud Infrastructure Oracle Linux Symptoms While performing patching of an instance through OSMH, the job fails with below error. Job marked as FAILED…
-
Useradd and usermod fail to flush the sssd cache with DB version too old for domain implicit_filesApplies to: Linux OS - Version Oracle Linux 7.0 and later Linux x86-64 Symptoms After sssd upgrade, useradd and usermod fail to flush the sssd cache with "DB version too…
-
OCI- Kdump service is not starting in an Oracle Linux 8 System when secure boot enabledAPPLIES TO Oracle Cloud Infrastructure Linux OS SYMPTOMS Kdump service failed and is not starting up in an Oracle Linux 8 System when secure boot enabled on the system $…
-
OCI- yum update Fails with [Errno 14] curl#7 - "Failed connect to 10.x.x.x:80; Connection refused"Applies To: Oracle Cloud Infrastructure Linux OS Symptoms Server is trying to access a local YUM repository but is unable to connect to it due to a Connection refused. #…
-
OCI: Kdump Service Fails to Start on Oracle Linux 8 ServerAPPLIES TO: Oracle Cloud Infrastructure Linux OS Symptoms kdump service fails to start with the following error messages. [root@xxxxx ~]#systemctl status kdump ● kdump.s…
-
How to Test Port[TCP/UDP] Connectivity from a Linux ServerApplies To: Oracle Cloud Infrastructure Oracle Linux Goal Procedure to check port [TCP/UDP] connectivity from a Linux server Solution Telnet and nc are common tools used…
-
Oracle Linux - How to troubleshoot NFS mount timeout?APPLIES TO: Oracle Cloud Infrastructure Linux OS SYMPTOMS When attempting to mount an NFS share, the connection times out or says no route to host. Example: mount.nfs: m…
-
OSMH: Instance Configuration Failed With Error “Invalid Managed Instance archType”Applies To: OS Management Hub (OSMH) Oracle Cloud Infrastructure Symptoms OSMH Instance registration failed with error: ERROR: failed to update managed instance: Error r…
-
OSMH: The Jobs Failing With [Errno 14] HTTPS Error 404 - Not Found Trying Other Mirror.APPLIES TO Oracle Cloud Infrastructure Oracle Linux OSMH SYMPTOMS While migrating from OSMS to OSMH, the jobs are failing with below error. $ yum repolist Loaded plugins…
-
OCI: Yum Update fails due to Incorrect Plugin ConfigurationApplies To: Oracle Cloud Infrastructure - Version N/A and later Linux x86-64 Symptoms: Unable to perform yum update due to legacy configurations in place. $ sudo yum upd…
-
OCI: Unable To Update kernel-uekApplies to: Oracle Cloud Infrastructure Linux x86-64 Symptoms Performing command to update only kernel-uek does not do anything $ sudo yum update kernel-uek Dependencies…
-
OSMH: High CPU usage for Windows osmh ProcessApplies to: Oracle Cloud Infrastructure - Version N/A and later Windows 2016 and Above Symptoms There is a high CPU load on the OSMH managed instance. The top 10 CPU hog…
-
OCI : YUM Command Fails with Error “No module named sqlitecachec”Applies to: Oracle Cloud Infrastructure - Version N/A and later Linux x86-64 Symptoms The below error is seen while running the dnf update command. [root@xxxx]# yum Ther…
-
OCI: SELinux Unable to relabel filesystemApplies To: Oracle Cloud Infrastructure Linux x86-64 Symptoms: Unable to login to the instance due to issues with selinux labels. Multiple "avc: denied" messages detecte…
-
PV versus iscsiHi Team, Can some one help us yo verify whether our storage is iscsi or PV from below output. [root@restore ~]# dmesg | grep -i iscsi [ 0.000000] Command line: BOOT_IMAG…
-
OCI Linux: Not Able Access Instance due to /etc Directory Permission Change (chmod -R 777 /etc)Applies to: Linux OS - Version Oracle Linux 7.9 and later Linux x86-64 Symptoms: /etc directory permission was accidentally changed to 777 by running command below and u…
-
Oracle Linux: Resolving VM Hang Due to Memory Exhaustion Caused by Fluentd OOM ErrorsApplies To: Oracle Cloud Infrastructure Linux OS Symptoms: The VM became inaccessible via PuTTY/SSH and appeared to hang. Critical processes (such as SSSD for authentica…
-
OCI: Mounting NFS Filesystem Fails With Error "mount.nfs No such device."Applies To: Oracle Cloud Infrastructure Linux OS Symptoms: Unable to mount NFS share, getting this error: # mount x.x.x.x:/NFS/Share /mountpoint -vvv ... mount.nfs: time…
-
restoring block volme to new serverHi Experts, This is a compute machine having OracleLinux 8 version of os. We have a created a block volume from block volume backup. We are attaching it to new instance …
-
OCI: Latest Installed Kernel Fails to BootApplies to: Oracle Cloud Infrastructure - Version N/A and later Linux x86-64 Symptoms Instance fails to boot after updating to the latest UEKR7 kernel. The console log s…
-
Autonomous Linux patching fails with error ”fork/exec /usr/bin/ksplice: no such file or directory:”Applies to: Oracle Cloud Infrastructure OS Management Hub(OSMH) Autonomous Linux Symptoms: Autonomous Linux patching fails with following error in OSMH failed job log fo…
-
OSMH:Unable to Update Packages on OCI OS Management Hub Instance using OCI CLI commandsApplies To: Service: OS Management Hub (OSMH) Version: N/A and later Platform: Linux x86-64 Symptoms When attempting to update packages on an instance using the OCI CLI …
-
OCI - How to Change UUID of NetworkManager Connection ProfileApplies To: Oracle Cloud Infrastructure Oracle Linux Goal There is a need to change the UUID of a NetworkManager connection profile. SOLUTION It is possible to generate …
-
Linux: How To Authenticate docker/Podman CLI Using Auth Token Feature in Oracle Container RegistryApplies to: Linux OS Oracle Cloud Infrastructure Goal This document provides details about Auth Token feature in Oracle Container Registry and how to generate, delete et…
-
OCI: Autonomous Linux Patching Fails due to conflicts with Firefox PackageApplies to: Linux OS - Version Oracle Linux 7.9 and later Linux x86-64 Symptoms: Autonomous Linux patching fails with following error file /usr/bin/firefox from install …