New systemd 248 feature 'extension images' updates immutable file systems without really updating them
Plus other improvements to the Linux service manager Tim Anderson Thu 1 Apr 2021 // 11:03 UTC Share Copy Version 248 of systemd, a widely used system and service manager for Linux, adds a feature called system extension images, designed to allow system files to be added, or appear to be added, even on read-only file systems. As developer Lennart Poettering explained: "When a system extension image is activated, its /usr/ and /opt/ hierarchies and os-release information are combined via overlayfs with the file system hierarchy of the host OS." The primary use case for s...
Source: theregister.com