defaults: update EXTRA_PKGS comments

EXTRA_PKGS comments used to be xen specific, and also a bit outdated.
With this patch we make them hypervisor agnostic, and then we provide
some sane defaults for different hypervisors/distro. Moreover we no
longer state that lenny doesn't have xen support for amd64, as it does.

Reviewed-by: iustinp

diff --git a/defaults b/defaults
index 3e9e128..de52e11 100644 (file)
--- a/defaults
+++ b/defaults
@@ -24,16 +24,18 @@
 # could be unstable, etch, etc.:
 # SUITE="lenny"
 
-# EXTRA_PKGS: depending on the suite and architecture you are using,
-# different extra packages are needed for Xen support; if you are not
-# using Xen, then Xen packages should not be installed and you should
-# use a different, if any, value for it
-
-# for etch/lenny i386:
+# EXTRA_PKGS: depending on the suite and architecture you are using, different
+# extra packages are needed for different hypervisors. For example:
+#
+# Xen, for etch/lenny i386:
 # EXTRA_PKGS="linux-image-xen-686,libc6-xen"
-
-# for etch amd64 (lenny doesn't have xen support in amd64):
+# Xen, for etch/lenny amd64:
 # EXTRA_PKGS="linux-image-xen-amd64"
+# KVM, for lenny i386:
+# EXTRA_PKGS="acpi-support-base,console-tools,udev,linux-image-686"
+# KVM, for lenny amd64:
+# EXTRA_PKGS="acpi-support-base,console-tools,udev,linux-image-amd64"
+#
 
 # GENERATE_CACHE: if set to yes (the default), create new cache files;
 # any other value will disable the generation of cache files (but they