Bug 1875940

Summary: Dkms creates wrong symlinks for previous kernel [solved]
Product: [Fedora] Fedora Reporter: knossos456
Component: dkmsAssignee: Simone Caronni <negativo17>
Status: CLOSED ERRATA QA Contact: Fedora Extras Quality Assurance <extras-qa>
Severity: unspecified Docs Contact:
Priority: unspecified    
Version: 32CC: mhjacks, negativo17
Target Milestone: ---Keywords: Reproducer, Upgrades
Target Release: ---   
Hardware: Unspecified   
OS: Unspecified   
Whiteboard:
Fixed In Version: dkms-2.8.4-1.fc33 dkms-2.8.4-1.fc32 dkms-2.8.4-1.el8 dkms-2.8.4-1.el7 Doc Type: ---
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 2020-12-09 01:15:31 UTC Type: Bug
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Embargoed:

Description knossos456 2020-09-04 16:42:35 UTC 
I've build Dkms in Fedora I've used before under Ubuntu for my DVB cards.

Fedora use weak-updates for previous kernel module loading, and this contains wrong symlinks to the newest Kernel module instead the relevant kernel module.

Example, I got update to kernel 5.8 today. The module for kernel 5.8 works , but i have, as example for previous kernel :
ls -l /lib/modules/5.7.17-200.fc32.x86_64/weak-updates
lrwxrwxrwx. 1 root root 54 4 sept. 10:21 stb0899.ko.xz -> /lib/modules/5.8.4-200.fc32.x86_64/extra/stb0899.ko.xz
instead:
lrwxrwxrwx. 1 root root 54 4 sept. 10:21 stb0899.ko.xz -> /lib/modules/5.7.17-200.fc32.x86_64/extra/stb0899.ko.xz (module is in correct place but wrong symlink)

So when i boot to previous kernel, modules loading fails .
I know i can manually change the symlinks of each line at each kernel update, but this is not the purpose of dkms ,isen't it ?

Can you correct the dkms routine ?
Comment 1 knossos456 2020-09-14 06:32:50 UTC 
No Answer ?
Comment 2 knossos456 2020-09-18 14:03:06 UTC 
I've found the solution for my modules. Thanks to the internet because no help from Fedora teams nor DKMS manual pages.
The normal way is to not use weak-updates for DKMS.
As Fedora /CentOs and I presume Redhat use weak-updates as default conf, you have to add in each dkms.conf a line :
NO_WEAK_MODULES="true" or NO_WEAK_MODULES="yes"
Tested this morning for kernel updates, ow previous kernel modules are loading

If a maintainer comes here please tell the dev team to update the dkms manual page!
Comment 3 Fedora Update System 2020-11-30 09:33:34 UTC 
FEDORA-2020-f876bb28c8 has been submitted as an update to Fedora 32. https://bodhi.fedoraproject.org/updates/FEDORA-2020-f876bb28c8
Comment 4 Fedora Update System 2020-11-30 09:33:39 UTC 
FEDORA-EPEL-2020-6c6bb5bdfc has been submitted as an update to Fedora EPEL 8. https://bodhi.fedoraproject.org/updates/FEDORA-EPEL-2020-6c6bb5bdfc
Comment 5 Fedora Update System 2020-11-30 09:33:41 UTC 
FEDORA-2020-3776969d93 has been submitted as an update to Fedora 33. https://bodhi.fedoraproject.org/updates/FEDORA-2020-3776969d93
Comment 6 Fedora Update System 2020-11-30 09:33:44 UTC 
FEDORA-EPEL-2020-ad3fed49e0 has been submitted as an update to Fedora EPEL 7. https://bodhi.fedoraproject.org/updates/FEDORA-EPEL-2020-ad3fed49e0
Comment 7 Fedora Update System 2020-12-01 01:59:53 UTC 
FEDORA-2020-f876bb28c8 has been pushed to the Fedora 32 testing repository.
In short time you'll be able to install the update with the following command:
`sudo dnf upgrade --enablerepo=updates-testing --advisory=FEDORA-2020-f876bb28c8`
You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-2020-f876bb28c8

See also https://fedoraproject.org/wiki/QA:Updates_Testing for more information on how to test updates.
Comment 8 Fedora Update System 2020-12-01 02:08:11 UTC 
FEDORA-EPEL-2020-6c6bb5bdfc has been pushed to the Fedora EPEL 8 testing repository.

You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-EPEL-2020-6c6bb5bdfc

See also https://fedoraproject.org/wiki/QA:Updates_Testing for more information on how to test updates.
Comment 9 Fedora Update System 2020-12-01 02:13:26 UTC 
FEDORA-2020-3776969d93 has been pushed to the Fedora 33 testing repository.
In short time you'll be able to install the update with the following command:
`sudo dnf upgrade --enablerepo=updates-testing --advisory=FEDORA-2020-3776969d93`
You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-2020-3776969d93

See also https://fedoraproject.org/wiki/QA:Updates_Testing for more information on how to test updates.
Comment 10 Fedora Update System 2020-12-01 02:13:29 UTC 
FEDORA-EPEL-2020-ad3fed49e0 has been pushed to the Fedora EPEL 7 testing repository.

You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-EPEL-2020-ad3fed49e0

See also https://fedoraproject.org/wiki/QA:Updates_Testing for more information on how to test updates.
Comment 11 Fedora Update System 2020-12-09 01:15:31 UTC 
FEDORA-2020-3776969d93 has been pushed to the Fedora 33 stable repository.
If problem still persists, please make note of it in this bug report.
Comment 12 Fedora Update System 2020-12-09 01:22:30 UTC 
FEDORA-2020-f876bb28c8 has been pushed to the Fedora 32 stable repository.
If problem still persists, please make note of it in this bug report.
Comment 13 knossos456 2020-12-09 15:32:44 UTC 
I've got finally updated dkms with updated manual, definitively solved !
Comment 14 Fedora Update System 2020-12-16 00:54:26 UTC 
FEDORA-EPEL-2020-6c6bb5bdfc has been pushed to the Fedora EPEL 8 stable repository.
If problem still persists, please make note of it in this bug report.
Comment 15 Fedora Update System 2020-12-16 01:14:17 UTC 
FEDORA-EPEL-2020-ad3fed49e0 has been pushed to the Fedora EPEL 7 stable repository.
If problem still persists, please make note of it in this bug report.