Red Hat Bugzilla – Bug 480084
Upgrade of rhel4.6 FV (xen) guest with kmod-xenpv to 4.7 or later will create wrong xen-*.ko dependencies in modules.dep
Last modified: 2012-06-20 12:05:23 EDT
Description of problem:
If a rhel4.6 fully-virtualized guest that also has the (asynch) xenpv kmod installed is upgraded to rhel4.7 or later, the module dependencies in /lib/modules/<rhel4.7>/modules.dep for xen-vbd.ko and xen-vnif.ko will be incorrect.
Version-Release number of selected component (if applicable):
Steps to Reproduce:
1. Install a RHEL4.6 FV guest on xen-based rhel5 dom0 system
2. Boot up rhel4.6 FV guest & add xenpv kmod pkg to rhel4.6 FV guest
3. Upgrade/add/install RHEL4.7 kernel pkg to rhel4.6 FV installation
xen-vbd.ko and xen-vnif.ko dependencies will be pointing to old,
xenpv kmod xen-platform-pci.ko (under weak-updates directory).
These modules should be dependent on the xen-platform-pci.ko that
is now included in rhel4.7 (& beyond).
Proper dependencies as explained above.
Solution: Upgrade the m-i-t pkg in rhel4.6 guest *first* to the rhel4.7 (or greater) version.
But, xenpv kmod pkg has an rpm Requires on rhel4.6 modversions pkg;
the latter pkg is Obsoleted by the rhel4.7 m-i-t pkg since modversions is included in 4.7 m-i-t (and has the bug fix for this problem). Thus, trying to
solely update the m-i-t package can't succeed unless the xenpv kmod pkg
dependency/Requires is changed.
So, need to change the xenpv kmod pkg to rhel4.7's m-i-t package and
*remove* the modversions Requires.
Then, an update of both packages can be done, after which, an upgrade
to rhel4.7 (or later) with xenpv drivers will create a proper set of
dependencies in modules.dep, and all work correctly.
NOTE: this is only a problem with updates, not fresh installs,
and the rhel4 system must also have the xenpv kmod pkg installed as well.
Created attachment 355469 [details]
Patch to xenpv-kmodtool for RHEL4 kmod-xenpv pkg
Should add, brew build:
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