Linux
Discussion List
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How To Create an Ubuntu Instance Using Oracle Cloud Infrastructure (OCI) Platform ImagesYou can create an instance running Ubuntu in OCI by selecting any of the available Ubuntu Platform Images when creating the instance. For more details on the current Pla… -
How to Configure KDUMP On Linux to Collect Kernel Panic Data from A Hung/Crashed SystemWhen a Linux system experiences a kernel panic and crashes unexpectedly or hangs, it can be configured to collect a crash dump of the system state and kernel calls leadi…
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How To Install & Configure KDUMP on Oracle Linux 61). Install the kexec-tools package: # yum install kexec-tools 2). Configure the amount of memory reserved for the kdump kernel in /boot/grub/grub.conf by adding the cra…
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How to configure KDUMP on Oracle Linux 71). Install the kexec-tools package if not already installed: To use the kdump service, you must have the kexec-tools package installed. To do so, type the following at …
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How to Configure KDUMP on Oracle Linux 8 and 91). If the kdump package is not already installed on your system, install it: # dnf install kexec-tools 2). With the proper administrative privileges, edit the /etc/defa…
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OCI: The “df -hT” Command HangsApplies to: Oracle Cloud Infrastructure - Version N/A and later Symptoms: OS level command like df -hT are hanging or provide no output. Cause The issue is due to a deco… -
Hello, what is the problem with "Oracle Cloud Infrastructure DNS | Multiple Regions | CN-1061707"? HSummary:Hello, what is the problem with "Oracle Cloud Infrastructure DNS | Multiple Regions | CN-1061707"? How long does it take to fix it? My business is all suspended.…
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Hello, what is the problem with "Oracle Cloud Infrastructure DNS | Multiple Regions | CN-1061707"? H总结：Hello, what is the problem with "Oracle Cloud Infrastructure DNS | Multiple Regions | CN-1061707"? How long does it take to fix it? My business is all suspended. C…
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Upgrade to the Latest Version of Oracle Java JRE/ JDKApplies to: Oracle Cloud Infrastructure - Version N/A and later Linux x86-64 Symptoms Below paths are showing as vulnerable and need to be updated in Oracle Linux: Oracl…
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Ksplice Patch Releases for Unbreakable Enterprise Kernel (UEK)This document provides list of recent ksplice releases patches for UEK. On systems that have "autoinstall = yes" in /etc/uptrack/uptrack.conf, these updates will be inst…
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kernel panic - not syncing: VFS:unable to mount root fs on unknown-block in oracle linux server 6.10Summary: I am not been able to boot on single mode. L tried all the list of kernel i.e. the options that it shows for boot mode but none of it help me Content (required)… -
How to Download RPMs Locally from Oracle Linux RepositoriesApplies to: Oracle Cloud Infrastructure - Version N/A and later Linux x86-64 Goal There is a need to download RPMs from Oracle Linux repositories to then be applied to o…
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Reset user password on remote instanceHi. I have been struggling recently to log into my compute instance, as the password for my user no longer seems to work. (note, I have not changed it, it worked just fi…
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OCI: Instance Without Networking Is Unable to Ping Subnet GatewayApplies to: Oracle Cloud Infrastructure - Version N/A and later Linux x86-64 Symptoms OCI Compute OL7 instance suddenly unreachable. When accessing from serial console i…
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OCI: Yum Unable to Find oracle-cloud-agent RPM package in OL7 InstanceApplies to: Oracle Cloud Infrastructure - Version N/A and later Linux x86-64 Symptoms In a OCI OL7 instance where oracle-cloud-agent is not installed, when trying to ins…
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OCI:oci-growfs Utility Failed with Error “Unable to expand /dev/sda3. No partitions expanded, exit.”APPLIES TO: Oracle Cloud Infrastructure - Version N/A and later Linux x86-64 SYMPTOMS: Unable to increase the size of root filesystem from default size and it reports fo…
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OCI Linux: Intermittent User Lookup Failure For Local or Remote Users While Using AD AuthenticationApplies to: Oracle Cloud Infrastructure - Version N/A and later Linux x86-64 Symptoms Oracle Linux server integrated with AD user is experiencing slow latency and connec…
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How to Change the Value for ARG_MAX in Oracle LinuxApplies to: Oracle Cloud Infrastructure - Version N/A and later Linux x86-64 Goal In Oracle Linux, the POSIX compliant ARG_MAX parameter determines the possible length i…
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How to Enable zram in Ubuntu 20.04Applies to: Oracle Cloud Infrastructure - Version N/A and later Ubuntu 20.04 and later Goal Enable zram module in ubuntu 20.04 Solution In order to enable zram on Ubuntu…
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How to Reduce an Instance Boot or Block Volume Disk SizeAPPLIES TO: Oracle Cloud Infrastructure - Version N/A and later Linux x86-64 GOAL How to reduce an OCI Instance Boot or Block Volume Disk Size, i.e from 100GB to 50GB or…
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OCI: Instance 20 Second Delay After Bad Password Login Attempt in SSHApplies to Oracle Cloud Infrastructure - Version N/A and later Linux x86-64 Symptoms When a wrong password is used when logging into an instance using SSH password authe…
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Oracle Linux: CRNG Entropy Value in Oracle Linux with UEKr5 Update 5 or UEKr6 Update 2 and laterApplies to Linux OS - Version Oracle Linux 7.9 with Unbreakable Enterprise Kernel [5.4.17] and later Linux x86-64 Goal When using UEKr5 Update 5 ( 4.14.35-2047.517.1.el7…
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Oracle Linux: uptrack-update Fails with "Error processing ksplice- pxyfnay6.tar.gz"Applies to: Oracle Cloud Infrastructure - Version N/A and later Linux x86-64 Symptoms Running uptrack-update returns the following error, $ uptrack-upgrade -y ..... Inst…
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Users With nologin Shell Unable to Login to FTPApplies to: Oracle Cloud Infrastructure - Version N/A and later Linux x86-64 Symptoms Users with default shell /sbin/nologin configured in /etc/passwd, are not able to l…
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OL7 upgradeSummary: Hi, the only way to upgrade OL7 (to OL8) is using leapp ? Using yum tool is not allowed ? thanks. Content (required): I need to perform this upgrade since curre…
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Oracle Ksplice Zero-Downtime Patching for Ubuntu InstancesOracle Cloud Infrastructure users has Oracle Ksplice support to Ubuntu instances on Oracle Cloud Infrastructure at no additional cost. With Oracle Ksplice support, you c… -
Managing DHCP Options For Linux Instances in a VCNTo specify DHCP options for a linux instance, you need to set the DHCP options for the specific subnet in the virtual cloud network (VCN) that your linux instance is usi…
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How to Configure RDP on an Ubuntu 20.04 InstanceThe following steps show how to install a Gnome 3 desktop and xrdp on a standard Ubuntu 20.04 instance. This will allow the Ubuntu instance to work with the RDP protocol…
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Using port 8008 for HTTP service on Oracle LinuxSummary: I have a Compute instance running Oracle Linux 8.6 server. I use it to run nginx proxying to a couple of web apps on the backend. I have port 80 working. But tr…