[gentoo-dev] [PATCH] 2022-12-01-systemd-usrmerge: add news item

[Mike Gilbert]

Signed-off-by: Mike Gilbert <floppym@g.o>
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 .../2022-12-01-systemd-usrmerge.en.txt        | 35 +++++++++++++++++++
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 create mode 100644 2022-12-01-systemd-usrmerge/2022-12-01-systemd-usrmerge.en.txt

diff --git a/2022-12-01-systemd-usrmerge/2022-12-01-systemd-usrmerge.en.txt b/2022-12-01-systemd-usrmerge/2022-12-01-systemd-usrmerge.en.txt
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+Title: /usr merge for systemd users
+Author: Mike Gilbert <floppym@g.o>
+Posted: 2022-12-01
+Revision: 1
+News-Item-Format 2.0
+Display-If-Installed: sys-apps/systemd
+
+In the latter half of 2023, systemd will drop support for
+split-usr/unmerged-usr systems [1]. All Gentoo systems running systemd
+will need to be migrated to merged-usr.
+
+Migrating to merged-usr will move all data from /bin, /sbin, and /lib
+into the /usr/bin and /usr/lib directories. The directories in / are
+replaced with symlinks.
+
+To facilitate this, a new set of sub-profiles has been created, and a
+script is availble to perform the actual migration.
+
+To migrate a system to merged-usr, follow this procedure:
+
+1. Ensure your system backups are up to date.
+
+2. Install sys-apps/merge-usr.
+
+3. Run the merge-usr script. The --dryrun option may be used to
+   check for error conditions before running the script for real.
+
+4. Switch to a merged-usr profile.
+     eg. eselect profile set default/linux/amd64/17.1/systemd/merged-usr
+
+5. Run emerge with the --newuse or --changed-use option to rebuild
+   any packages that have a "split-usr" USE flag.
+     eg. emerge -uDN @world
+
+[1] https://lists.freedesktop.org/archives/systemd-devel/2022-September/048352.html
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