Linux
Discussion List
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OCI: How to Enable Password Based Authentication on Ubuntu 22.04 InstanceApplies To: Oracle Cloud Infrastructure - Version Ubuntu 22.04 and later Goal: Enable password authentication on OCI Compute Ubuntu Instance. Solution: Login to OCI Comp… -
How To Migrate A System From Oracle Linux Manager (OLM) To OS Management Hub(OSMH)Applies to: Oracle Linux Manager OS Management Service OS Management Hub Goal: Oracle Linux Manager (OLM) has been a common management solution for Oracle Linux customer…
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OCI: User Exceeded Maximum Active ConnectionsApplies to Oracle Cloud Infrastructure Linux x86-64 Symptoms The following is seen in the /var/log/messages logs: Apr 26 08:58:42 usiadecnobiap01 dbus-daemon[1675]: [sys…
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OCI: How to add secondary AD servers in SSSDAPPLIES TO: Oracle Cloud Infrastructure Linux x86-64 GOAL: By default SSSD only allows a primary and a secondary AD using ad_server_primary ad_server_backup To add more … -
OCI: Yum Update Is Ending Up With Error Error Package tuned-profiles-oci (@ol7_optional_latest)Applies to: OCI Compute - Version N/A and later Linux OS - Version Oracle Linux 7.0 and later Symptoms: #yum update Loaded plugins: langpacks, ulninfo Resolving Dependen…
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OCI: OL8 ARM Instance rpm process high memory usage followed by OOM and hungApplies To: Oracle Cloud Infrastructure Linux x86-64 Symptoms: OL8 ARM Instance rpm process consumed high memory usage followed by OOM and hung. rpm-4.14.3-26.0.1.el8.a…
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OCI: Port 80 and 443 Became Inaccessible After RebootAPPLIES TO Oracle Cloud Infrastructure - Version N/A and later Linux x86-64 SYMPTOMS 3rd party Web Application Site became inaccessible after server reboot even the port…
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OCI: How to change or add a label to an XFS file systemAPPLIES TO: Oracle Cloud Infrastructure Linux x86-64 GOAL: Some systems use LABELS instead of UUIDs to mount their file systems. This is particularly true with Exadata s…
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Oracle Linux 7/8: iscsid Service Fails When Using Oracle Ksplice and SELinux in Enforcing ModeApplies to: Linux OS - Version Oracle Linux 7.0 to Oracle Linux 8.0 [Release OL7 to OL8] Oracle Cloud Infrastructure Linux x86-64 Linux ARM 64-bit Symptoms Starting the …
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OCI/EXACC: After Upgrading to ExaData 23.1 (OL8-based) SSH Logins Fail with "Authentication failed."Applies To: Oracle Cloud Infrastructure - Version N/A and later Linux x86-64 Exadata CC Symptoms: After uprading to Exadata 23.1, logins via ssh Fail with the following …
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OCI: mkfs.btrfs does not always trigger an entry in /dev/disk/by- uuidApplies to: Oracle Cloud Infrastructure Linux x86-64 Symptoms: Unable to mount brtfs filesystem intermittently via fstab using UUID $ mount -av mount: /aplm/scratch does…
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Oracle Linux: "ABORT_TASK: Sending TMR" Messages Caused System Crash or HangApplies to: Linux OS - Version Oracle Linux 6.0 to Oracle Linux 7.9 [Release OL6 to OL7U9] Linux x86-64 Symptoms: The system is experiencing crashes or hangs and "ABORT_…
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Unknown Log File /.service Using Up Disk Space in Root FilesystemApplies to: Oracle Cloud Infrastructure - Version N/A and later Linux x86-64 Symptoms It is observed that an unknown file is present in the root filesystem: cd / ls -alt…
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OCI – How to install/update specific CVE and ELSA in Oracle Linux using yum commandsAPPLIES TO: Oracle Cloud Infrastructure Linux OS SYMPTOMS How to install/update specific CVE & ELSA number in Linux using yum command Solution Follow the below commands …
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OCI: How to update OpenJDK Java on Oracle Linux 7 or LaterIn order to update the version of OpenJDK installed on an instance running Oracle Linux (OL) 7 or later, use the following steps: 1). Ensure the yum repository or softwa… -
Oracle Linux: Installation of compat-libstdc Fails with "Unable to find a match: compat-libstdc"An application on Oracle Linux 8 requires the "compat-libstdc++-33" library, however when installing through the available yum repos: [root@hostname~]# yum install compa…
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Oracle Linux: Yum Update Fails With Duplicate Package ErrorWhen trying to use yum to update packages on a system, it fails with an error such as the following: pkg.v.el7.x86_64" is a duplicate with "pkg.v1.el7.x86_64 To fix this…
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OCI: Leapp Pre-Upgrade Fails With Error “Title: DNF execution failed with non zero exit code.”Attempting to run the "leapp preupgrade" command fails with the following error output: $ sudo leapp preupgrade --oci ….. Leapp Pre-Upgrade fails with error: Risk Factor…
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OL8: SSH User Session and Process Killed “systemd-logind: Session of user <user> is idle, stopping"On Oracle Linux 8, SSH sessions of users and their processes are killed automatically after some time, with the following systemd-logind error seen in the logs: --/var/l…
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OCI: Unable to run sudo to root with error "sudo: no valid sudoers sources found, quitting"Applies To Oracle Cloud Infrastructure Linux x86-64 Symptoms Unable to run “sudo su –“ command due to issues seen in files located the /etc/sudoers.d / directory $ sudo …
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OCI: Instance unable to boot due to missing /etc/fstab fileApplies to Oracle Cloud Infrastructure - Version N/A and later Linux x86-64 Symptoms The instance fails to boot normally and instead booted to maintenance mode and the r…
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OCI: ssh to instance fail with error "packet_write_wait: Connection to IP port 22: Broken pipe"Applies To: Oracle Cloud Infrastructure - Version N/A and later Linux x86-64 Symptoms: When trying to ssh into an instance, it fails with the error below: $ ssh packet…
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OCI: Unable To Mount OCFS2 Filesystem Due To Unavailability of Port 7777Applies To: Oracle Cloud Infrastructure - Version N/A and later Linux x86-64 on Oracle Public Cloud Symptoms: OCFS2 cannot be mounted. [root@test]# mount /s10 mount.ocfs…
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OCI: ABRT:OL7:iscsiadm segfaults when run as non-root user and with iscsi block volumesApplies To: Oracle Cloud Infrastructure - Version N/A and later Linux x86-64 Symptoms Executing the ‘iscsiadm -m session’ with the ‘orarom’ user on OL7 below fails with …