[elrepo] centos8 megaraid_sas module not working for LSI MegaRAID SAS-3 3008 [Fury]

[jeff stevens]

hi everyone,
have spent 1.5 days on this now and am confused-- seems like there are
several options on how to get this driver working, but i can't seem to make
any of them happen. can someone point me in the right direction? here's the
most relevant of what i've tried so far:

- was following a conversation with Akemi Yagi (
https://access.redhat.com/discussions/3722151), where they talk about
mpt3sas and megaraid. i tried installing mpt3sas from elrepo:
Installed:
  kmod-mpt3sas-28.100.00.00-2.el8_1.elrepo.x86_64

rebooted and the module wasn't loaded. did an insmod mpt3sas and the module
loaded, but lshw still says the card is UNCLAIMED and there's no driver for
it.

installed kmod-megaraid_sas from elrepo:
Installed:
  kmod-megaraid_sas-07.707.51.00-1.el8_1.elrepo.x86_64

rebooted, and again mpt3sas was not loaded; also, megaraid_sas seems to be
the same version that was loaded before:
modinfo megaraid_sas
filename:
/lib/modules/4.18.0-147.5.1.el8_1.x86_64/weak-updates/megaraid_sas/megaraid_sas.ko
description:    Broadcom MegaRAID SAS Driver
author:         megaraidlinux.pdl at broadcom.com
version:        07.707.51.00-rc1
license:        GPL
rhelversion:    8.1
srcversion:     1CDFF574D9202A94AABD3E9

now when i do a "modprobe megaraid_sas" i see these in /var/log/messages:
Mar 17 17:17:41 bfg-9000 kernel: megasas: 07.707.51.00-rc1
Mar 17 17:17:41 bfg-9000 kernel: megaraid_sas 0000:81:00.0: Waiting for FW
to come to ready state
Mar 17 17:17:41 bfg-9000 kernel: megaraid_sas 0000:81:00.0: Failed from
megasas_init_fw 5914

questions:
- do i need to get rid of the old megaraid_sas kernel module? i think it's
the stock one in the centos8 kernel.
- am i missing a kernel recompile step? or dracut?
- do i need to install both mpt3sas and megaraid_sas?




totally separate path-- got drivers and install doc from Broadcom:
went ahead and installed kmod-megaraid
- according to the MegaRAID SAS Device Driver Installation User Guide,
section 3.3.1, i can
install kmod-megaraid_sas-07.712.02.00_el8.0-1.x86_64.rpm (downloaded from
Broadcom). the problem with that is (same as above?) that there is already
a megaraid_sas kernel module, and after the rpm install and reboot the old
one is still loaded. do i need to remove the old one? can't figure out how
to do that. do i need to run dracut to make the new module part of the
kernel? the doc doesn't say that, but other sources talk about it.

thanks for any help you can give-- i used to configure and build my own
kernels, but that was many years ago. would like to get this working so i
can get back to what i'm _supposed_ to be doing! :D

thanks,
jeff
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