X-Git-Url: http://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?p=elogind.git;a=blobdiff_plain;f=README;h=c72209262e6c53b2c323a0d00cf7f636fb672a2c;hp=dcb300b3347ce34b607f32a265a4ba1f919494b4;hb=40672b99c7da7efd317fc31612504fe7d5ab0b65;hpb=a509e0e6946aee5c3dd51bc3a6f40d0a623c9e2c

diff --git a/README b/README
index dcb300b33..c72209262 100644
--- a/README
+++ b/README
@@ -30,15 +30,13 @@ AUTHOR:
 
 LICENSE:
         LGPLv2.1+ for all code
-        - except sd-readahead.[ch] which is MIT
         - except src/shared/MurmurHash2.c which is Public Domain
         - except src/shared/siphash24.c which is CC0 Public Domain
         - except src/journal/lookup3.c which is Public Domain
         - except src/udev/* which is (currently still) GPLv2, GPLv2+
 
 REQUIREMENTS:
-        Linux kernel >= 3.0
-        Linux kernel >= 3.3 for loop device partition support features with nspawn
+        Linux kernel >= 3.7
         Linux kernel >= 3.8 for Smack support
 
         Kernel Config Options:
@@ -53,14 +51,14 @@ REQUIREMENTS:
           CONFIG_PROC_FS
           CONFIG_FHANDLE (libudev, mount and bind mount handling)
 
-        Udev will fail to work with the legacy layout:
+        udev will fail to work with the legacy sysfs layout:
           CONFIG_SYSFS_DEPRECATED=n
 
         Legacy hotplug slows down the system and confuses udev:
           CONFIG_UEVENT_HELPER_PATH=""
 
-        Userspace firmware loading is deprecated, will go away, and
-        sometimes causes problems:
+        Userspace firmware loading is not supported and should
+        be disabled in the kernel:
           CONFIG_FW_LOADER_USER_HELPER=n
 
         Some udev rules and virtualization detection relies on it:
@@ -70,8 +68,11 @@ REQUIREMENTS:
         create additional symlinks in /dev/disk/ and /dev/tape:
           CONFIG_BLK_DEV_BSG
 
-        Required for PrivateNetwork in service units:
+        Required for PrivateNetwork and PrivateDevices in service units:
           CONFIG_NET_NS
+          CONFIG_DEVPTS_MULTIPLE_INSTANCES
+        Note that systemd-localed.service and other systemd units use
+        PrivateNetwork and PrivateDevices so this is effectively required.
 
         Optional but strongly recommended:
           CONFIG_IPV6
@@ -84,6 +85,9 @@ REQUIREMENTS:
           CONFIG_CGROUP_SCHED
           CONFIG_FAIR_GROUP_SCHED
 
+        Required for CPUQuota in resource control unit settings
+          CONFIG_CFS_BANDWIDTH
+
         For systemd-bootchart, several proc debug interfaces are required:
           CONFIG_SCHEDSTATS
           CONFIG_SCHED_DEBUG
@@ -108,8 +112,9 @@ REQUIREMENTS:
 
         glibc >= 2.14
         libcap
+        libmount >= 2.20 (from util-linux)
         libseccomp >= 1.0.0 (optional)
-        libblkid >= 2.20 (from util-linux) (optional)
+        libblkid >= 2.24 (from util-linux) (optional)
         libkmod >= 15 (optional)
         PAM >= 1.1.2 (optional)
         libcryptsetup (optional)
@@ -122,6 +127,7 @@ REQUIREMENTS:
         libqrencode (optional)
         libmicrohttpd (optional)
         libpython (optional)
+        libidn (optional)
         gobject-introspection > 1.40.0 (optional)
         elfutils >= 158 (optional)
         make, gcc, and similar tools
@@ -129,11 +135,8 @@ REQUIREMENTS:
         During runtime, you need the following additional
         dependencies:
 
-        util-linux >= v2.19 (requires fsck -l, agetty -s),
-                      v2.21 required for tests in test/
+        util-linux >= v2.25 required
         dbus >= 1.4.0 (strictly speaking optional, but recommended)
-        sulogin (from util-linux >= 2.22 or sysvinit-tools, optional but recommended,
-                 required for tests in test/)
         dracut (optional)
         PolicyKit (optional)
 
@@ -175,14 +178,9 @@ USERS AND GROUPS:
         During runtime, the journal daemon requires the
         "systemd-journal" system group to exist. New journal files will
         be readable by this group (but not writable), which may be used
-        to grant specific users read access.
-
-        It is also recommended to grant read access to all journal
-        files to the system groups "wheel" and "adm" with a command
-        like the following in the post installation script of the
-        package:
-
-        # setfacl -nm g:wheel:rx,d:g:wheel:rx,g:adm:rx,d:g:adm:rx /var/log/journal/
+        to grant specific users read access. In addition, system
+        groups "wheel" and "adm" will be given read-only access to
+        journal files using systemd-tmpfiles.service.
 
         The journal gateway daemon requires the
         "systemd-journal-gateway" system user and group to
@@ -201,6 +199,27 @@ USERS AND GROUPS:
         Similarly, the kdbus dbus1 proxy daemon requires the
         "systemd-bus-proxy" system user and group to exist.
 
+NSS:
+        systemd ships with three NSS modules:
+
+        nss-myhostname resolves the local hostname to locally
+        configured IP addresses, as well as "localhost" to
+        127.0.0.1/::1.
+
+        nss-resolve enables DNS resolution via the systemd-resolved
+        DNS/LLMNR caching stub resolver "systemd-resolved".
+
+        nss-mymachines enables resolution of all local containers
+        registered with machined to their respective IP addresses.
+
+        To make use of these NSS modules, please add them to the
+        "hosts: " line in /etc/nsswitch.conf. The "resolve" module
+        should replace the glibc "dns" module in this file.
+
+        The three modules should be used in the following order:
+
+                hosts: files mymachines resolve myhostname
+
 WARNINGS:
         systemd will warn you during boot if /etc/mtab is not a
         symlink to /proc/mounts. Please ensure that /etc/mtab is a
@@ -227,3 +246,8 @@ WARNINGS:
         (e.g. ./configure CPPFLAGS='... -DVALGRIND=1'). Otherwise,
         false positives will be triggered by code which violates
         some rules but is actually safe.
+
+ENGINEERING AND CONSULTING SERVICES:
+        ENDOCODE <https://endocode.com/> offers professional
+        engineering and consulting services for systemd. Please
+        contact Chris Kühl <chris@endocode.com> for more information.