[LU-1032] Add dkms support for kernel modules

• Type: Improvement
• Resolution: Fixed
• Priority: Blocker
• Fix Version/s: Lustre 2.6.0, Lustre 2.8.0, Lustre 2.10.0
• Labels: prz
• Assignee: Bruno Faccini (Inactive)
• Reporter: Guy Coates

Description

dkms is a cross distro mechanism for the building and maintenance of out-of-tree kernel modules.
(http://linux.dell.com/dkms/) The attached patch adds dkms support to the debian/ubuntu packaging infrastructure.

The current debian/ubuntu kernel module package uses module-assistant, which produces a deb which is tied to a specific kernel version, requiring the user to manually rebuild packages when the kernel is changed.

The dkms package allows modules for multiple kernel versions to be packaged together into a single deb. Once installed, the package contains triggers so that when a new kernel is installed for which no pre-built lustre modules exists, dkms will automatically build and install them. This reduces maintenance overhead on client machines.

dkms also works on redhat and sles; it should be possible to fold dkms support into the rpm build process.

Issue Links

• is duplicated by: LU-6393 dkms build of client modules requires zfs/spl libraries
• is related to: LU-5465 Enhancements to Lustre DKMS RPM
• is related to: LU-2391 warning messages for missing symbols when lustre-modules::osd_zfs.ko installed on a system without zfs-modules installed

Comments

[Gerrit Updater]

Oleg Drokin ([e-mail]) merged in patch https://review.whamcloud.com/26358/
Subject: LU-1032 build: fix typo in lustre-dkms.spec changelog
Project: fs/lustre-release
Branch: master
Current Patch Set:
Commit: 74fb19ec4b12e9fb416c2d8fbe98825bfdd05846

[Gerrit Updater]

Andreas Dilger ([e-mail]) uploaded a new patch: https://review.whamcloud.com/26358
Subject: LU-1032 build: fix typo in lustre-dkms.spec changelog
Project: fs/lustre-release
Branch: master
Current Patch Set: 1
Commit: 166a49ce2a1d7b5a4491a33e3ebac0aef72006b0

[Gerrit Updater]

-Andreas Dilger ([e-mail]) uploaded a new patch: https://review.whamcloud.com/26356-
Subject: LU-1032 build: fix typo in lustre-dkms.spec changelog
Project: fs/lustre-release
Branch: master
Current Patch Set: 1
Commit: c7b3fc6ea51887183efbbfda106fb6f804a29c89

[Gerrit Updater]

Oleg Drokin ([e-mail]) merged in patch http://review.whamcloud.com/12347/
Subject: LU-1032 build: DKMS RPM for Lustre Client modules
Project: fs/lustre-release
Branch: master
Current Patch Set:
Commit: 549c57e77b7f3a4cae5a7381d612a499c2ca3dcc

[Peter Jones]

Bruno I think that it would be better to create a new ticket that is linked to this one

[Bruno Faccini (Inactive)]

I am adding this comment in this closed/fixed JIRA since it has been the main ticket to track issues around the Lustre modules DKMS RPMs creation, so patch to implement the necessary stuff to allow for a Lustre Client (only) modules DKMS RPM is at http://review.whamcloud.com/12347.