[Spacewalk-list] RHEL 6 client fails to apply errata

[Pierre Casenove]

Hello list,
My setup: Spacewalk 1.7 server. RHEL 6 Client with spacewalk 1.7
packages installed.
My problem is that some erratas, imported by rhn-clone-errata are
marked as needed in spacewalk UI, but fails to apply on my client with
error code:
Client execution returned "Error while executing packages action:
empty transaction [[6]]" (code -1)

The errata that fails to apply is: RHSA-2012:1054. This errata is
associated to these packages:
 libtiff-3.9.4-6.el6_3-i686
libtiff-3.9.4-6.el6_3-x86_64
 libtiff-devel-3.9.4-6.el6_3-i686
libtiff-devel-3.9.4-6.el6_3-x86_64

On my client, I have these packages already installed:

~ $ rpm -qa | grep libtiff
libtiff-3.9.4-5.el6_2.x86_64 --> So the package should be updated

~$ yum update libtiff
Loaded plugins: product-id, rhnplugin, security, subscription-manager
Updating certificate-based repositories.
Unable to read consumer identity
Setting up Update Process
No Packages marked for Update

And finally, here is the trace when scheduling errata deployment and
running rhn_check -vvvv

D: rpcServer: Calling XMLRPC errata.getErrataInfo
D: Called update[['libtiff', '3.9.4', '6.el6_3', '', 'x86_64']]
D: opening  db environment /var/lib/rpm cdb:mpool:joinenv
D: opening  db index       /var/lib/rpm/Packages rdonly mode=0x0
D: loading keyring from pubkeys in /var/lib/rpm/pubkeys/*.key
D: couldn't find any keys in /var/lib/rpm/pubkeys/*.key
D: loading keyring from rpmdb
D: opening  db index       /var/lib/rpm/Name rdonly mode=0x0
D:  read h#     685 Header sanity check: OK
D: added key gpg-pubkey-37017186-45761324 to keyring
D:  read h#     686 Header sanity check: OK
D: added key gpg-pubkey-fd431d51-4ae0493b to keyring
D:  read h#     687 Header sanity check: OK
D: added key gpg-pubkey-2fa658e0-45700c69 to keyring
D:  read h#     688 Header sanity check: OK
D: added key gpg-pubkey-0608b895-4bd22942 to keyring
D:  read h#     689 Header sanity check: OK
D: added key gpg-pubkey-b3892132-4c63febc to keyring
D:  read h#     690 Header sanity check: OK
D: added key gpg-pubkey-863a853d-4f55f54d to keyring
D:  read h#     691 Header sanity check: OK
D: added key gpg-pubkey-66fd4949-4803fe57 to keyring
D: Using legacy gpg-pubkey(s) from rpmdb
D:  read h#     133 Header sanity check: OK
D: closed   db index       /var/lib/rpm/Name
D: closed   db index       /var/lib/rpm/Packages
D: closed   db environment /var/lib/rpm
D: Sending back response((6,), 'Error while executing packages action:
empty transaction', {})

Thanks in advance for your help,

Pierre