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man: add man page for systemd-sysext

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Lennart Poettering
2021-01-19 13:41:42 +01:00
parent 205e5bcc1c
commit 7a87fb6119
3 changed files with 249 additions and 0 deletions
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docs/ENVIRONMENT.md
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@@ -267,3 +267,15 @@ systemd-firstboot and localectl:
* `SYSTEMD_LIST_NON_UTF8_LOCALES=1` – if set non-UTF-8 locales are listed among
the installed ones. By default non-UTF-8 locales are suppressed from the
selection, since we are living in the 21st century.
systemd-sysext:
* `SYSTEMD_SYSEXT_HIERARCHIES` – if set to a colon-separated list of absolute
paths this variable may be used to override which hierarchies to manage with
`systemd-sysext`. By default only `/usr/` and `/opt/` are managed. With this
environment variable this list may be changed, in order to add or remove
directories from this list. This should only reference "real" file systems
and directories that only contain "real" file systems as submounts — do not
specify API file systems such as `/proc/` or `/sys/` here, or hierarchies
that have them as submounts. In particular, do not specify the root directory
`/` here.