X-Git-Url: http://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?p=elogind.git;a=blobdiff_plain;f=README;h=96fdc5f3152462649190cff3d1038ac6fd4c0f50;hp=e38c19b191e1107f56f0c9737d1bbdd8589001d8;hb=64af1b6207e4062e43f049a4f322ffa4de9dd87f;hpb=fc00b89add541b52c7f9ca2dbc2f10d8c697f509

diff --git a/README b/README
index e38c19b19..96fdc5f31 100644
--- a/README
+++ b/README
@@ -27,12 +27,60 @@ AUTHOR:
         Lennart Poettering with major support from Kay Sievers
 
 REQUIREMENTS:
-        Linux kernel >= 2.6.30 (with autofs4, devtmpfs, cgroups)
+        Linux kernel >= 2.6.30 (with devtmpfs, cgroups; optional but strongly recommended: autofs4, ipv6)
         libudev >= 163
         dbus >= 1.4.0
-        vala >= 0.10
-        util-linux > v2.18 (requires fsck -l, agetty -s)
-        sulogin (from sysvinit-tools)
-        gtk+ >= 2.20
         libcap
+        gtk+ >= 2.20 (optional)
         PAM >= 1.1.2 (optional)
+        libcryptsetup (optional)
+        libaudit (optional)
+        libselinux (optional)
+        tcpwrappers (optional)
+        libnotify (optional)
+
+        When you build from git you need the following additional dependencies:
+
+        vala >= 0.10
+        docbook-xsl
+        xsltproc
+        automake
+        autoconf
+        libtool
+        make, gcc, and similar tools
+
+        During runtime you need the following dependencies:
+
+        util-linux > v2.18 (requires fsck -l, agetty -s)
+        sulogin (from sysvinit-tools, optional but recommended)
+        plymouth (optional)
+        dracut (optional)
+
+WARNINGS:
+        systemd will warn you during boot if /etc/mtab is not a
+        symlink to /proc/mounts. Please ensure that /etc/mtab is a
+        proper symlink.
+
+        systemd will warn you during boot if /usr is on a different
+        file system than /. While in systemd itself very little will
+        break if /usr is on a separate partition many of its
+        dependencies very likely will break sooner or later in one
+        form or another. For example udev rules tend to refer to
+        binaries in /usr, binaries that link to libraries in /usr or
+        binaries that refer to data files in /usr. Since these
+        breakages are not always directly visible systemd will warn
+        about this, since this kind of file system setup is not really
+        supported anymore by the basic set of Linux OS components.
+
+        For more information on this issue consult
+        http://freedesktop.org/wiki/Software/systemd/separate-usr-is-broken
+
+ENGINEERING AND CONSULTING SERVICES:
+        ProFUSION <http://profusion.mobi> offers professional
+        engineering and consulting services for systemd for embedded
+        and other use. Please contact Gustavo Barbieri
+        <barbieri@profusion.mobi> for more information.
+
+        Disclaimer: This notice is not a recommendation or official
+        endorsement. However, ProFUSION's upstream work has been very
+        beneficial for the systemd project.