Ubuntu
Discussion List
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OCI: Ubuntu Instance Failed To Boot Due to Secure Boot EnabledApplies To: Oracle Cloud Infrastructure Goal: Ubuntu Instance was stuck during the boot process as it required a username and password during the instance boot process. … -
mount.ocfs2: Cluster name is invalid while trying to join the groupSummary: 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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OCI: Unable to SSH to Ubuntu Instance Using PasswordAPPLIES TO Oracle Cloud Infrastructure - Version N/A and later Linux OS – Ubuntu 22.04 SYMPTOMS: Unable to ssh to the instance with password even after setting PasswordA…
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ubuntu image questionSummary: ubuntu linux updates Content (please ensure you mask any confidential information): hi all i created an Ubuntu Linux server using an 22.04 image ( Canonical-Ubu… -
OCI: How To Change ssh Port Number in UbuntuApplies To: Oracle Cloud Infrastructure Ubuntu OS Goal: This document explains steps to change the ssh port number of an Ubuntu instance from Port 2222 to 22. Solution: …
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Can't connect to my website - ERR_CONNECTION_TIMED_OUTI tried to make a website on my free account ubuntu instance, I used Nginx for the website, added port 80 to the ingress rule, yet if I try to connect via a web browser …
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I can't connect to my instance using an ssh connecion - It times outThe Shape I'm using is Oracle ubuntu . Previously, I used t connecti via ssh just fine, but now, this happened : ' PS C:\Users\Ehssan> ssh -i C:\Users\Ehssan.ssh\da-serv…
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OCI - How to Recover Ubuntu Instance SSH AccessApplies to: Oracle Cloud Infrastructure - Version Ubuntu 22.04 and later Goal: This CCC document is intended to explain how to recover Ubuntu instance's SSH access if no…
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OCI: Password Authentication on Ubuntu Throws Error: No supported authentication methods availableApplies To: Oracle Cloud Infrastructure - Version N/A and later Linux x86-64 on Oracle Public Cloud Symptoms: On Ubuntu 20.04, if the parameter “PasswordAuthentication y…
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OCI- How to upgrade/Install kernel in Ubuntu 22.04.2 LTSAPPLIES TO: Oracle Cloud Infrastructure Linux OS Ubuntu Goal Upgrade the kernel version from Linux 5.15.0-1034-oracle x86_64 to latest generic kernel which is kernel 5.1…Baisakhi Mahapatra -Oracle 245 views 0 comments 0 points Started by Baisakhi Mahapatra -Oracle Linux
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Oracle Linux – "ls -l or du" Commands Hung in NFS ShareAPPLIES TO: Linux OS – Version Oracle Linux 7.0 to Oracle Linux 9.0 [Release OL7 to OL9] Linux x86_64 on Oracle Public Cloud SYMPTOMS: NFS share mounted on Oracle Linux …
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OCI: How To Copy All Data Across Two Filesystems Using "rsync" CommandApplies To Oracle Cloud Infrastructure Linux OS Goal Two different filesystems are mounted in a Linux system, for example: /mnt1 /mnt2 There is a need to copy all the da…
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Postfix Cannot Start Due to "fatal: parameter inet_interfaces: no local interface found for ::1"Applies to: Linux OS - Version Oracle Linux 7.0 and later Oracle Cloud Infrastructure - Version N/A and later Linux x86-64 Symptoms postfix.service cannot start due to t…Alejandro Rodriguez L.-Oracle 41 views 0 comments 0 points Started by Alejandro Rodriguez L.-Oracle Linux -
OCI Ubuntu: "apt update" Returns "Could not resolve 'security.ubuntu.com'"Applies To: Oracle Cloud Infrastructure - Version N/A and later Linux x86-64 Symptoms: When executing "apt update" or "apt-get update" on Ubuntu, the command can return …
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OCI: Ubuntu Instance Fails to Boot With Kernel Panic “Not syncing: VFS: Unable to mount root fsAPPLIES TO: Oracle Cloud Infrastructure Linux x86-64 SYMPTOMS On OCI Ubuntu Instance, After Installing a new Kernel the Instance no longer boots using the latest kernel,…
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How to Easily Check I/O Usage by Process in LinuxApplies to: Oracle Cloud Infrastructure - Version N/A and later Linux x86-64 Goal Linux systems do not generally log past I/O activity per process. It is however quite s…
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Manage OpenSSH server from CLI and configure SSH to automatically start during system boot [Linux]Summary: Manage OpenSSH server from CLI and configure SSH to automatically start during system boot Content: Install SSH service $ sudo apt-get install ssh Status from t… -
linux default usersSummary: Hi all I want to know if it is safe to delete the Unix default oci users, opc for Oracle Linux and ubuntu for Ubuntu machines it does not affect any oci process…
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Using apt or yum Fails with Error: "503 Service Unavailable" or "FAILED: Trying other mirror"Applies to: Oracle Cloud Infrastructure - Version N/A and later Linux x86-64 - Ubuntu and CentOS Symptoms: Contacting official repositories for Ubuntu or CentOS intances…
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update ubuntu private instanceSummary: hi all I created a private Ubuntu instance using the Canonical-Ubuntu-22.04-Minimal-2023.08.27-0 image the image is connected to an public subnet and the vcn ha…
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OCI – Ubuntu 22 .04 LTS Instance Stops Responding 20 Minutes After BootApplies to: Oracle Cloud Infrastructure - Version N/A and later Ubuntu 22.04 LTS Symptoms Twenty minutes after being started, the instance stops responding completely – …
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Ubuntu Instance Can't connect to MQTT service on port 1883APPLIES TO: Oracle Cloud Infrastructure - Version N/A and later Information in this document applies to any platform. SYMPTOMS Oracle cloud server running a MQTT service…
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OCI: How to Run a Script During Boot in Ubuntu Linux 22.04Applies to: Oracle Cloud Infrastructure - Version N/A and later Ubuntu Linux x86-64 Goal There is a need to run a custom script to execute a set of commands during the s…
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Oracle Linux – How to set up a new SSH key for Ubuntu/Oracle Linux Instance (Previous SSH is lost)APPLIES TO: Oracle Cloud Infrastructure - Version N/A and later Linux x86-64 GOAL: This document describes how to create a new SSH key in case the previous SSH key had b…
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OCI: IPv6 Address Not Assigned to OCI Ubuntu Instance by DHCPApplies to Oracle Cloud Infrastructure Ubuntu Linux 22.04 LTS Symptoms An IPv6 Address is created in a IPv6 enabled VCN and then assigned to an Ubuntu 22.04 LTS OCI inst…
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How do I reset an instance to default image?Summary: Resetting an instance to default supplied image Content (required): I created an instance with image imported from oracle supplied image for Ubuntu. The instanc…
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OCI : Ubuntu instance is not accessible as router IP doesn't persist after rebootApplies TO: Oracle Cloud Infrastructure Linux OS SYMPTOMS Unable to access the ubuntu 22.04 instance as it loses router IP provided by DHCP for every reboot CAUSE Ubuntu…
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Problem switching from networkd to NetworkManager on Ubuntu 22.04On an Ubuntu 22.04 instance on Google Cloud, switching from networkd to NetworkManager is easy: $ sudo apt install network-manager $ sudo nano /etc/netplan/50-cloud-init…
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OCI: ifcfg-ensN File is Empty After the Reboot with Error “Device name does not seem to be present”APPLIES TO: Oracle Cloud Infrastructure - Version N/A and later Linux x86-64 SYMPTOMS: Oracle Linux Instance network configuration file “/etc/sysconfig/network-scripts/i…
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OCI: How to Increase Root Partition of Ubuntu InstanceApplies To: Oracle Cloud Infrastructure Ubuntu Linux - x86-64 Goal: To Increase the root partition size of an Ubuntu instance in OCI. Solution To resize the root partiti…