{"id":104418,"date":"2022-06-15T21:37:34","date_gmt":"2022-06-15T19:37:34","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/dostupen-monolitnyj-distributiv-ubuntu-core-22"},"modified":"2022-06-15T21:37:34","modified_gmt":"2022-06-15T19:37:34","slug":"dostupen-monolitnyj-distributiv-ubuntu-core-22","status":"publish","type":"post","link":"https:\/\/prohoster.info\/en\/blog\/news\/dostupen-monolitnyj-distributiv-ubuntu-core-22","title":{"rendered":"The monolithic distribution of Ubuntu Core 22 is available.","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

Canonical has released Ubuntu Core 22, a compact version of the Ubuntu distribution tailored for use on Internet of Things (IoT) devices, containers, consumer, and industrial equipment. Ubuntu Core is delivered as an indivisible monolithic image of the base system, without the use of separate deb packages. Ubuntu Core 22 images, which are synchronized with the package base of Ubuntu 22.04, are prepared for x86_64, ARMv7, and ARMv8 systems. The support time for this release is 10 years. <\/p>\n

Ubuntu Core serves as the foundation for running additional components and applications, which are packaged as self-contained extensions in snap format. Components of Ubuntu Core, including the base system, Linux kernel, and system extensions, are also delivered in snap format and managed by the snapd toolset. The Snappy technology allows the system image to be formed as a whole, without breaking it into separate packages. <\/p>\n

Instead of incremental updates at the level of individual deb packages, Ubuntu Core employs an atomic update mechanism for snap packages and the base system, similar to Atomic, ChromeOS, Endless, CoreOS, and Fedora Silverblue. When updating the base environment and snap packages, there is an option to roll back to a previous state in case any issues are detected post-update. Currently, there are over 4.5 thousand snap packages in the SnapCraft directory. <\/p>\n

To ensure security, each system component is verified by a digital signature, which protects the distribution from unauthorized modifications or the installation of unverified snap packages. The components delivered in the Span format are isolated using AppArmor and Seccomp, creating an additional line of defense for the system in case of compromise of individual applications. The base system includes only the minimal set of necessary applications, which not only reduces the size of the system environment but also enhances security by decreasing potential attack vectors. <\/p>\n

The basic file system is mounted in read-only mode. There is an option to use data encryption on the drive with TPM. Updates are released regularly, delivered over-the-air (OTA) and synchronized with the Ubuntu 22.04 composition. To minimize traffic, updates are provided in a compressed format and include only changes relative to the previous update (delta updates). The automation of update installations addresses security maintenance issues when used on embedded devices. <\/p>\n

By logically separating the base system from applications, the maintenance of the Ubuntu Core codebase is handled by Ubuntu developers, while the relevance of additional applications is supported by application developers. This approach allows for reduced maintenance costs for products built on the Ubuntu Core foundation, as their manufacturers need not engage in releasing and delivering system updates, focusing instead solely on their specific components. <\/p>\n

Key innovations: <\/p>\n