Red Hat Bugzilla – Bug 604151
Kdump initrd should have only firmware for the drivers packed in initrd
Last modified: 2013-09-29 22:17:00 EDT
Description of problem:
Currently we seem to be packing all the firmware blobs in kdump initrd by default and this led to increase in size of kdump initrd from 3.3 MB to 8 MB. If we can modify "mkdumprd" to include only firmware for the drivers packed into initrd, it can reduce the size of initrd and reduce the memory requirement for kdump kernel.
Version-Release number of selected component (if applicable):
Steps to Reproduce:
This request was evaluated by Red Hat Product Management for inclusion in a Red
Hat Enterprise Linux major release. Product Management has requested further
review of this request by Red Hat Engineering, for potential inclusion in a Red
Hat Enterprise Linux Major release. This request is not yet committed for
It seems that using udev is the only way to know which driver needs which firmware.
modinfo can tell you all the firmware files that a given module can request
(In reply to comment #5)
> modinfo can tell you all the firmware files that a given module can request
Ah, got it. thanks.
Created attachment 425051 [details]
Please try if this patch addresses your concern.
On my system, this reduces kdump initrd from 9.1M to 4.4M, more than 50%!
Red Hat Enterprise Linux 6.0 is now available and should resolve
the problem described in this bug report. This report is therefore being closed
with a resolution of CURRENTRELEASE. You may reopen this bug report if the
solution does not work for you.