Compatibility & Considerations Linux Kernel Required Kernel Versions for Advanced Features Key-Value store clang+LLVM iproute2 Firewall Rules Mounted eBPF filesystem Privileges Upgrade Guide Running pre-flight and motivation. Installation Quick Installation Installation using Helm Advanced Installation Considerations on node pool taints and unmanaged pods Observability Setting up Hubble Observability Inspecting ensure application pods will only be scheduled/executed once Cilium is ready to manage them (see Considerations on node pool taints and unmanaged pods for more details), however this is not an option on AKS

Compatibility & Considerations Linux Kernel Required Kernel Versions for Advanced Features Key-Value store clang+LLVM iproute2 Firewall Rules Mounted eBPF filesystem Privileges Upgrade Guide Running pre-flight and motivation. Installation Quick Installation Installation using Helm Advanced Installation Considerations on node pool taints and unmanaged pods Observability Setting up Hubble Observability Inspecting ensure application pods will only be scheduled/executed once Cilium is ready to manage them (see Considerations on node pool taints and unmanaged pods for more details), however this is not an option on AKS

are several ways to upgrade from one Ubuntu release to another. This section gives an overview of the recommended upgrade method. 4.1. do-release-upgrade The recommended way to upgrade a Server Edition Edition installation is to use the do-release-upgrade utility. Part of the update-manager-core package, it does not have any graphical dependencies and is installed by default. Debian based systems can also using apt dist-upgrade. However, using do-release-upgrade is recommended because it has the ability to handle system configuration changes sometimes needed between releases. To upgrade to a newer release

configuration with Docker-Compose 2 Software 3 package-management Package management 3 upgrade-introduction Upgrade 3 third-party-apt-repositories Third party APT repositories 3 reporting-bugs Reporting u-kvm vGPU with QEMU/KVM 0 1 explanation Explanation 2 Software 3 about-apt-upgrade-and-phased-updates About apt upgrade and phased updates 3 changing-package-files Changing package files 2 Network ubuntu-advantage-tools If you already have ubuntu-advantage-tools installed, this install command will upgrade the package to the latest version. 27 Step 2: Attach your subscription Once you have the latest

released every six months and upgrades to new releases are free of charge. Users are encouraged to upgrade with each new release in order to enjoy the latest features and applications. Its versions are named with limited options to personalise • Paid for additional applications Data Storage • Easy to upgrade and downgrade • User data stored in home directory • Easy to migrate and replicate user data and release cycle also makes it very easy for users to have access to all the latest applications. An upgrade from one release to the next is free and fully supported. Microsoft scheduled releases are less frequent

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57 2.3.6 System wide upgrade . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58 2.4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69 2.7.3 Automatic download and upgrade of packages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70 2.7.4 Updates and Backports packages • Focus on stability and security with easy access to the security updates • Focus on smooth upgrade to the latest software packages in the testing archives • Large number of supported hardware architectures

Centos6.x 升级至 7.2 前言： Centos6.x 的系统版本只能直接升级到 centos7.2 的版本，因为 centos7.3 开始，其安装 镜像文件里就没有 upgrade.img 等文件，无法直接升级了，所以要想从 6.x 升级到 7.8 等新 的版本，也要先升级至 7.2，再在 7.2 里 yum update 升级至最新版本。 Centos6 的小版本（如 6.4 本文档先以 centos6.5 最小化安装版本 为例讲一下通常的升级步骤： 1.下载 redhat-upgrade-tool 升级工具及相关依赖包 2.下载 centos7.2 的安装包.iso 文件，并上传到目标服务器（运行 centos6.x 的） 3.安装 redhat-upgrade-tool 及依赖包，运行升级检查命令 4.检查后无重大问题，则可升级 5.升级完成，若能正常进入新系统 个包：（建议放在同一目录下，如 /centos6_upgrade_tools ） 2.如果目标服务器不能访问互联网，则要准备 centos6.10 的安装镜像 iso 文件，需要用到里 面的 18 个依赖包（可以提取出来，也可不提取，直接把 6.10 的 iso 挂载目录做成 Yum 源） 也可到这里下载：https://limaofu.github.io/centos6_upgrade_depens.zip 上面

Features Key-Value store clang+LLVM iproute2 Firewall Rules Mounted eBPF filesystem Privileges Upgrade Guide Running pre-flight check (Required) Upgrading Cilium Version Specific Notes Advanced Configuration installed Cilium via helm install, you may enable Hubble Relay and UI with the following command: helm upgrade cilium cilium/cilium --version 1.9.18 \ --namespace $CILIUM_NAMESPACE \ --reuse-values \ the installed Cilium version is 1.9.2 or newer. Users of Cilium 1.9.0 or 1.9.1 are encouraged to upgrade to a newer version by applying the most recent Cilium quick-install.yaml first. Alternatively, it

libdb2 debconf # apt-get install apt apt-utils dselect dpkg 接下來請升級系統到 Woody。 # apt-get upgrade # apt-get dist-upgrade 2.2 升 升 升級 級 級前 前 前的 的 的準 準 準備 備 備 您可以透過網路安裝來升級目前的發行版本到另外一個。以下說明完成的方法。 首先取得 stable 以上動作會更新檔案庫中最新的套件列表 • aptitude upgrade (或 apt-get upgrade 或 aptitude dist-upgrade 或 apt-get dist-upgrade) 這樣會跟隨testing版本 — 他們會安裝目前testing版本上可提供升級的套件以及其相 依的軟體。 2 • apt-get dselect-upgrade 這會跟隨testing版本 — 上述指令 4-1 安裝 foo 套件的特定版本 2.2.4-1 。 2upgrade與dist-upgrade不 同 的 地 方 是 對 於 那 些 升 級 套 件 的 相 依 性 問 題 的 處 理 方 式 。 請 參 閱apt-get(8)來了解更多細節。 aptitude upgrade 和 aptitude dist-upgrade 是aptitude 的組合指 令。按下 e可以全螢幕顯示。 Chapter

Distribu�on Compa�bility Matrix Linux Kernel Key-Value store clang+LLVM iproute2 Firewall Rules Privileges Upgrade Guide Running a pre-flight DaemonSet Upgrading Micro Versions Upgrading Minor Versions Rolling Back purpose, the Cilium pod is scheduled to run in the host networking namespace directly. Upgrade Guide This upgrade guide is intended for Cilium 1.3 or later running on Kubernetes. It is assuming that Cilium consult the documenta�on from that release. Running a pre-flight DaemonSet When rolling out an upgrade with Kubernetes, Kubernetes will first terminate the pod followed by pulling the new image version