![]() As an alternative to installing sudo on the minimal version, you can switch users as needed with the su command to run commands that require root privileges. On the minimal version, you must install sudo with tdnf if you want to use it. The sudo program comes with the full version of Photon OS. This guide assumes that you are logged in to Photon OS with the root account and running commands as root. The Root Account and the sudo and su Commands Since troubleshooting with tdnf differs from using yum, a later section of this guide describes how to solve problems with packages and repositories by using tdnf commands. On Photon OS, tdnf is the default package manager for installing new packages. Tdnf keeps the operating system as small as possible while preserving yum's robust package-management capabilities. Instead, systemd uses a dependency tree of targets to determine which services to start when.īecause the systemd commands differ from those of an init.d-based Linux system, a section later in this guide illustrates how to troubleshoot by using systemctl commands instead of init.d-style commands. In contrast to a SysVinit system, systemd defines no such runlevels. A SysVinit runlevel defines a state in which a process or service runs. With SLES 11, for instance, SysVinit-style init programs control how the system starts up and shuts down. Two characteristics of Photon OS stand out: It manages services with systemd, and it manages packages with its own open source, yum-compatible package manager called tdnf, for Tiny DNF.īy using systemd, Photon OS adopts a contemporary Linux standard to bootstrap the user space and concurrently start services-an architecture that differs from traditional Linux systems such as SUSE Linux Enterprise Server 11.Ī traditional Linux system contains an initialization system called SysVinit. The guide also demonstrates how to access the system's log files.įor information on how to install and manage Photon OS, see the Photon OS Administration Guide. The guide includes a quick tour of the tools that you can use for troubleshooting and provides examples along the way. This guide covers the basics of troubleshooting systemd, packages, network interfaces, services such as SSH and Sendmail, the file system, and the Linux kernel. An open-source minimalist Linux operating system from VMware, Photon OS is optimized for cloud computing platforms, VMware vSphere deployments, virtual appliances, and applications native to the cloud. This guide describes the fundamentals of troubleshooting problems on Photon OS. Investigating the Guest Kernel When You Cannot Log.Installing the Packages for tcpdump and netcat with.Inspecting the Status of Network Links with.Use ip and ss Commands Instead of ifconfig and.Using Systemd Commands Instead of Init.d.Linux Troubleshooting Tools Not on Photon.Other Troubleshooting Tools Installed by.Fixing Sendmail If Installed Before an FQDN Was.Remotely Upgrade Multiple Photon OS Machines With Lightwave Client and Photon Management Daemon Installed Remotely Upgrade a Single Photon OS Machine With Lightwave Client and Photon Management Daemon Installed Installing the Photon Management Daemon on a Lightwave Client Installing the Lightwave Client on a Photon Image and Joining the Client to a Domain Installing the Lightwave Server and Configuring It as a Domain Controller on a Photon Image Installing and Using Lightwave on Photon OS Running container applications between bootable images Installing a Photon RPM-OStree host against a custom server repositoryĪutomated install of a custom host via kickstart Why am I unable to install, update or delete packages? Querying for commit, file and package metadata Installing a Photon RPM-OSTree host against default server repository Photon with RPM-OSTree installation profiles Network Configuration Manager - Python API Photon Network Manager Command-line Interface (netmgr) Photon Management Daemon Command-line Interface (pmd-cli) Running Photon OS on Google Compute Engine
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