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Description of problem:

(Thanks to Marek Goldmann for additional testing)

virt-what doesn't detect EC2 Xen instances.  Fedora running on
these does not have any /proc/xen directory.

Instead /sys/hypervisor/type contains the string "xen" (sans quotes).

Version-Release number of selected component (if applicable):

1.6

Additional info:

This is the official way to detect variations of Xen:
http://lxr.xensource.com/lxr/source/tools/misc/xen-detect.c

(In reply to comment #0)
> virt-what doesn't detect EC2 Xen instances.  Fedora running on
> these does not have any /proc/xen directory.

Sorry, there is a /proc/xen directory but it is empty.

Fixed upstream in:

http://git.annexia.org/?p=virt-what.git;a=commitdiff;h=55cf13ae4a00c30b55fe508f544406dce05bdb8d
http://git.annexia.org/?p=virt-what.git;a=commitdiff;h=75a67daafc9a2aa6ec614a0aabb3be9236910cae
http://git.annexia.org/?p=virt-what.git;a=commitdiff;h=a70ac5e9809724a80edb633dc23df512fdffab5e

Richard, how can we have access to an instance of the EC2? We don't have such resource to do the verification test.

(In reply to comment #9)
> I'm happy anyway that for 6.1 it at least detects the
> EC2 is virtualized and is a variant of Xen.  And we
> can look at fixing the rest for the next version.

Cloned this as bug 681464, so we can fix this properly
for 6.2 or later.

An advisory has been issued which should help the problem
described in this bug report. This report is therefore being
closed with a resolution of ERRATA. For more information
on therefore solution and/or where to find the updated files,
please follow the link below. You may reopen this bug report
if the solution does not work for you.

http://rhn.redhat.com/errata/RHEA-2011-0604.html