Unlike with traditional update tools, such as yum and apt-get, KernelCare patches the Linux kernel as a binary in memory. KernelCare patches are custom-built for each supported kernel version, and distributed as atomic binary packages.
64 bit raspberry pi os aws Patch#
When instructed by the agent, a kernel module handles the patching, pausing and restarting the kernel’s processes to perform the patch in memory. It can be a dedicated cloud server, or one that runs in-house.Ī small agent program installed on the device or instance to be patched periodically checks the patch server for new patches at specified intervals. It can be accessed directly, or through a firewall. This includes Amazon EC2 instances, on which KernelCare functions in its usual way, delivering security patches through its three components:Ī patch server stores patches for each kernel version. Last year, the KernelCare team successfully created a proof-of-concept for live patching systems powered by ARM processors, and today KernelCare works the same way with any server that uses an ARM processor.įrom Raspberry Pi to IoT devices and edge gateways, to enterprise servers any device with an ARM chip can have its Linux kernel patched by KernelCare. Within EC2, the Graviton2 processors also power video encoding workloads, hardware acceleration for compression workloads, and support for CPU-based machine learning inference.ĭoes KernelCare do anything differently to patch kernels on EC2 servers with Graviton2 processors? No, because it doesn’t have to. In these instances, the chips power a wide variety of workloads that include application servers, micro-services, high-performance computing, electronic design automation, open-source databases, and in-memory caches. Whether the OS is Amazon Linux 2, Ubuntu, RHEL, CentOS, Fedora, Debian, or others Amazon EC2 instances use the Graviton2 processors. They contain four times as many cores, memory that’s five times faster, and caches that are twice as large, all of which enable them to be seven times faster. Compared to its first-generation Graviton chips, they deliver even better performance.
These new generation processors power Amazon EC2, M6g, C6g, and R6g instances.
It does this because these chips, custom-built by AWS using 64-bit ARM Neoverse cores, offer more flexibility, versatility, and better performance. How does KernelCare patch Linux kernels on AWS EC2 servers? Read on to find out.Īmazon uses its own Graviton2 ARM64 processors on many of its EC2 instance types. CloudLinux is an Amazon Web Services (AWS) Advanced Technology Partner, and our live patching system, KernelCare, is currently being used to patch AWS Elastic Compute Cloud (EC2) systems.
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