Bug 163951

Summary: updateDiskless does not always include all necessary kernel modules in initrd
Product: Red Hat Enterprise Linux 3 Reporter: bastiaan
Component: redhat-config-netbootAssignee: Jason Vas Dias <jvdias>
Status: CLOSED ERRATA QA Contact:
Severity: low Docs Contact:
Priority: medium    
Version: 3.0   
Target Milestone: ---   
Target Release: ---   
Hardware: All   
OS: Linux   
Whiteboard:
Fixed In Version: RHBA-2005-486 Doc Type: Bug Fix
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 2005-09-28 19:38:35 UTC Type: ---
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Embargoed:
Bug Depends On:    
Bug Blocks: 156320, 164012    
Attachments:
Description Flags
adds kernel modules /lib subdir to initrd to solve unloadable pcnet32.o problem none

Description bastiaan 2005-07-22 12:00:58 UTC 
Description of problem:
updateDiskless copies all network driver modules from the client root into the
initrd, but fails to include dependency modules outside the /drivers/net subdir. 
For example the pcnet32 modules requires 'crc32.o', which is located in /lib and
thefore won't be copied into the initrd.
The result is that the diskless client will not boot because it cannot load the
kernel module for its network card. 

Version-Release number of selected component (if applicable):
redhat-config-netboot-0.1.18-1_EL3

How reproducible:
always

Steps to Reproduce:
1. setup a diskless client with a pcnet32 network card, following the
intructions in the Sytem Administrator Guide
2. boot the client.
3.
  
Actual results:
Kernel panic at boot, because the NFS root fs could not be mounted due to
failure to load the pcnet32 netwerk module.

Expected results:
The diskless system should have booted properly.

Additional info:
In this instance the problem can be solved easily by including
/lib/modules/`uname -r`/kernel/lib in the the initrd.
Comment 1 bastiaan 2005-07-22 12:00:58 UTC 
Created attachment 117051 [details]
adds kernel modules /lib subdir to initrd to solve unloadable pcnet32.o problem
Comment 2 Jason Vas Dias 2005-07-22 20:39:25 UTC 
This is now fixed with redhat-config-netboot-0.1.20-1_EL3, which now uses 
modules.dep to determine any modules on which the default modules in the 
initrd depend that are missing in the initrd, and will then copy them to 
the initrd - there were a few other missing module dependencies (such as
pcmcia_core for various drivers/net modules).

Please download the new version from:
   http://people.redhat.com/~jvdias/redhat-config-netboot/
and let me know of any further issues with it - thank you!
Comment 5 bastiaan 2005-08-01 11:02:52 UTC 
Using modules.dep is a much better solution indeed. 
redhat-config-netboot-0.1.20-1_EL3 fixes the problem (in my test setup), thanks!
Comment 6 Red Hat Bugzilla 2005-09-28 19:38:35 UTC 
An advisory has been issued which should help the problem
described in this bug report. This report is therefore being
closed with a resolution of ERRATA. For more information
on the solution and/or where to find the updated files,
please follow the link below. You may reopen this bug report
if the solution does not work for you.

http://rhn.redhat.com/errata/RHBA-2005-486.html