On Wed, Aug 31, 2022 at 12:01 PM Jeff Gazso <jeff.ga...@gmail.com> wrote: > > Just out of curiosity, how much pain is this likely to cause existing > installations that will need to migrate from a split-usr setup to a > merged-usr setup?
We haven't deployed this to users, so feedback is limited thus far. At least a handful of Gentoo devs have successfully migrated real systems from split-usr to merged-usr without any major problems. It's a relatively simple process: move the existing files (see sys-apps/merge-usr), flip the split-usr USE flag off, and then run "emege --update --deep --changed-use @world". The only pain point I see is for users with /usr on a separate filesystem and that are not using an appropriate initramfs. This has been an "unsupported" configuration on Gentoo for several years, but there are probably some users who do it anyway.
