X-Git-Url: http://git.annexia.org/?p=libguestfs.git;a=blobdiff_plain;f=README;h=0877775f9ca36263708a253334241ac4b586ae77;hp=d56d21ee77e9edf458320491b7266967c139f109;hb=03cd3050b342cecbc6f657e85637d1d16dbc60ab;hpb=b3595c5553035798b7b33d05c9326f7e8dd55e69

diff --git a/README b/README
index d56d21e..0877775 100644
--- a/README
+++ b/README
@@ -48,6 +48,12 @@ Requirements
 
 - squashfs-tools (mksquashfs only)
 
+- genisoimage / mkisofs
+
+- libxml2
+
+- (Optional) FUSE to build the FUSE module
+
 - (Optional) Augeas (http://augeas.net/)
 
 - perldoc (pod2man, pod2text) to generate the manual pages and
@@ -58,9 +64,14 @@ Requirements
 - (Optional) 'reged' program from chntpw to decode Windows registry
   entries (http://home.eunet.no/~pnordahl/ntpasswd/)
 
+- (Optional) xmllint to validate virt-inspector RELAX NG schema
+
 - (Optional) OCaml if you want to rebuild the generated files, and
   also to build the OCaml bindings
 
+- (Optional) OCaml xml-light, only needed if you want to rebuild the
+  virt-inspector bindings from virt-inspector.rng.
+
 - (Optional) local Fedora mirror
 
 - (Optional) Perl if you want to build the perl bindings
@@ -145,16 +156,9 @@ qemu
 By far the most common problem is with broken or incompatible
 qemu releases.
 
-First of all, you need qemu >= 0.10.4, which contains a vmchannel
-implementation.  There are several, conflicting, incompatible things
-called 'vmchannel' which at one time or another have been added or
-proposed for qemu/KVM.  The _only_ one we support is this one:
-
-  http://lists.gnu.org/archive/html/qemu-devel/2009-02/msg01042.html
-
-Secondly, different versions of qemu have problems booting the
-appliance for different reasons.  This varies between versions of
-qemu, and Linux distributions which add their own patches.
+Different versions of qemu have problems booting the appliance for
+different reasons.  This varies between versions of qemu, and Linux
+distributions which add their own patches.
 
 If you find a problem, you could try using your own qemu built from
 source (qemu is very easy to build from source), with a 'qemu
@@ -181,6 +185,32 @@ On some systems, the chmod will not survive a reboot, and you will
 need to make edits to the udev configuration.
 
 
+vmchannel
+----------------------------------------------------------------------
+
+Previous versions of libguestfs required something called "vmchannel".
+Vmchannel is a special device given to virtual machines which allows
+them to communicate in some way with the host, often (but not always)
+without using a traditional network device.  In reality, there is no
+one thing called "vmchannel".  This idea has been reimplemented
+several times under the name vmchannel, and other hypervisors have
+their own incompatible implementation(s) too.
+
+In libguestfs <= 1.0.71, we required a specific vmchannel which is
+properly known as "guestfwd" and has been upstream in qemu since here:
+
+  http://lists.gnu.org/archive/html/qemu-devel/2009-02/msg01042.html
+
+In libguestfs >= 1.0.71 we don't require any vmchannel implementation,
+as long as qemu has been compiled with support for SLIRP (user mode
+networking, or "-net user"), which is almost always the case.
+
+However we still offer the ability to use vmchannel, and in future we
+may add support for other types of qemu, which is useful in a few
+cases, specifically where qemu packagers decide to compile out support
+for SLIRP (qemu packagers: please don't do this).
+
+
 Supermin appliance
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