[LU-3770] lustre-client-modules rpm 'Requires: kernel' dependency always satisified by kernel-debug via YUM

• Status: Resolved
• Project: Lustre
• Affects Version/s: Lustre 2.4.0
• Type: Bug
• Priority: Major
• Reporter: Scott Nolin
• Assignee: WC Triage
• Resolution: Incomplete

Environment

RHEL 6.4

• Severity: 1

Description

lustre-client-modules-2.4.0-2.6.32_358.6.2.el6.x86_64_gd3f91c4.x86_64.rpm

has a kernel requirement -

Requires: kernel = 2.6.32-358.6.2.el6

If installed via yum, yum always resolves the dependency with the debug kernel.

lustre-client-modules-2.4.0-2.6.32_358.6.2.el6.x86_64_gd3f91c4.x86_64 requires: kernel = 2.6.32-358.6.2.el6
--> Processing Dependency: kernel = 2.6.32-358.6.2.el6 for package: lustre-client-modules-2.4.0-2.6.32_358.6. 2.el6.x86_64_gd3f91c4.x86_64
Searching pkgSack for dep: kernel
Building updates object
up:simple updates time: 0.304
up:obs time: 0.006
up:condense time: 0.000
updates time: 3.922
TSINFO: Marking kernel-debug-2.6.32-358.6.2.el6.x86_64 as install for lustre-client-modules-2.4.0-2.6.32_358. 6.2.el6.x86_64_gd3f91c4.x86_64
--> Running transaction check
---> Package kernel-debug.x86_64 0:2.6.32-358.6.2.el6 will be installed

This is a bug in yum or rpm I think. I made a simple rpm package that just requires a kernel and it does the same thing. I played with the spec file but couldn't figure out a way to work around this with an rpm.

It is not a huge deal, but we have to work around it for automated installs.

Comments

[Brian Murrell (Inactive)]

Yes, I believe this to be a RH bug/quirk also. It might be good to get this reported upstream. If somebody reports it, please post the upstream bug number here.

[Dmitry Eremin (Inactive)]

Could you show the list of already installed kernel packages by using following command "rpm -qa | grep kernel"?

[Scott Nolin]

kernel-2.6.32-358.14.1.el6.x86_64
kernel-2.6.32-358.11.1.el6.x86_64

(omitted kernel-devel and headers packages)

Scott

[Scott Nolin]

I think, but am not certain, that this is because linux treats all kernels, include kernel-debug, kernel-devel, and so on as the 'kernel' package with the -debug string being a revision. So more than one kernel can satisfy the version dependency.

I do not think this is something that can be reported or fixed by RedHat upstream..

The workaround is to change the lustre-client-modules spec file to require not the package 'kernel' as it's too ambiguous, but a file with the version name in it, for example:

/boot/vmlinuz-2.6.32-358.6.2.el6.x86_64

-the debug kernel contains vmlinuz-2.6.32-358.6.2.el6.x86_64.debug

Scott

[Keith Mannthey (Inactive)]

I have seen this same thing with a Luster 2.3 kernel. kernel*.debug.rpm was installed and yum installed did not correctly pull down the standard kenrel. The correct kernel had to be installed manually.