On Fri, 5 Oct 2012, SCHAER Frederic wrote:

Hi,

I'm trying to install some software which requires a jdk, and the latest one is 
 set to be installed... but installation fails
because I have enabled gpg signature check, and that rpm isn't signed : is this 
a bug, or a feature ?

Error :
# yum install jdk.x86_64
(...)
Package jdk-1.6.0_35-fcs.x86_64.rpm is not signed

If this is a feature, do how should security updates be applied using yum ?

It is a "feature".

Sun/Oracle build these packages, not SL,
and they are built with rpm version 3 which cannot be (re)signed (there is/was some work around for the 32bit rpms,
but no known solution for the x86_64 packages).

I would assume it is a security risk to disable gpg check on erratas, isn't it ?

I would agree.
I hand-install these packages with yum --nogpgcheck

--
Dr. Andrew C. Aitchison         Computer Officer, DPMMS, Cambridge
[email protected]   http://www.dpmms.cam.ac.uk/~werdna

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