X-Git-Url: https://pintos-os.org/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=INSTALL.Linux;h=652911865a22e6103163967fdae3a3e172866871;hb=7446f1480bb27ccb63feab066d901cc940d52462;hp=aadac73f438ae1bcd821d02a35080bc5d2f7e485;hpb=30746a1b6a9758a58d6f9a7a85830512aa0e114f;p=openvswitch

diff --git a/INSTALL.Linux b/INSTALL.Linux
index aadac73f..65291186 100644
--- a/INSTALL.Linux
+++ b/INSTALL.Linux
@@ -2,8 +2,8 @@
                  ====================================
 
 This document describes how to build and install Open vSwitch on a
-generic Linux host host.  If you want to install Open vSwitch on a
-Citrix XenServer 5.5.0, see INSTALL.XenServer instead.
+generic Linux host.  If you want to install Open vSwitch on a Citrix
+XenServer version 5.5.0, see INSTALL.XenServer instead.
 
 This version of Open vSwitch should be built manually with "configure"
 and "make".  Debian packaging for Open vSwitch is also included, but
@@ -27,8 +27,15 @@ you will need the following software:
       connections from an Open vSwitch to an OpenFlow controller.  To
       enable, configure with --enable-ssl=yes.
 
-To compile the kernel module (which is required for operation), you
-must also install the following:
+    - libpcre, the Perl Compatible Regular Expression library, is
+      optional but recommended.  Without it, OVSDB will not be able to
+      validate regular-expression based contraints.
+
+To compile the kernel module, you must also install the following.  If
+you cannot build or install the kernel module, you may use the
+userspace-only implementation, at a cost in performance.  The
+userspace implementation may also lack some features.  Refer to
+INSTALL.userspace for more information.
 
     - A supported Linux kernel version.  Please refer to README for a
       list of supported versions.
@@ -58,12 +65,14 @@ If you are working from a Git tree or snapshot (instead of from a
 distribution tarball), or if you modify the Open vSwitch build system,
 you will also need the following software:
 
-    - Autoconf version 2.60 or later.
+    - Autoconf version 2.63 or later.
 
     - Automake version 1.10 or later.
 
     - pkg-config.  We test with version 0.22.
 
+    - Python 2.x, for x >= 4.
+
 Installation Requirements
 -------------------------
 
@@ -75,6 +84,9 @@ following software:
     - libssl compatible with the libssl used for build, if OpenSSL was
       used for the build.
 
+    - libpcre compatible with the libpcre used for build, if PCRE was
+      used for the build.
+
     - The Linux kernel version configured as part of the build.
 
     - For optional support of ingress policing, the "tc" program from
@@ -161,16 +173,14 @@ respectively.
 
 At runtime, you may make ovs-vswitchd reload its configuration file
 and update its configuration accordingly by sending it a SIGHUP
-signal.  The ovs-appctl utility can also be used to do this with a
-command such as:
+signal.  The ovs-appctl utility can also be used to do this:
 
-    % ovs-appctl -t <pid> -e vswitchd/reload
+    % ovs-appctl vswitchd/reload
 
-where <pid> is ovs-vswitchd's process ID.  In the latter case,
-ovs-appctl will not exit until the reload and reconfiguration is
-complete.
+In the latter case, ovs-appctl will wait for ovs-vswitchd to finish
+reloading before it exits.
 
 Bug Reporting
 -------------
 
-Please report problems to ovs-bugs@openvswitch.org.
+Please report problems to bugs@openvswitch.org.