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Yum repository for PowerVC install through RHN and make sure that the following repos are enabled.

AppStream
BaseOS
Supplementary
High Availability (HA repo is not available with standard RHEL subscription. For subscription details, see Red Hat® Enterprise Linux® High Availability Add-On ).
Codeready Builder (CRB) (for RHEL 9.x only) with these RPMs, libknet1 and mysql-libs.

I installed PowerVC x86 on VMware

Note: PowerVC uses the default network interface: eth0. To use a different network interface, set the environment variable, HOST_INTERFACE, before running the install script. For example: export HOST_INTERFACE=eth1.

Once Redhat 8.4 is installed, change the ethernet adapter name

Change from ens192 to eth0

[root@ibmpvc01 ~]# lshw -class network -short
H/W path             Device      Class          Description
===========================================================
/0/100/16/0          ens192      network        VMXNET3 Ethernet Controller

Add the option net.ifnames=0 into file /etc/default/grub, and rebuild grub, then reboot

[root@ibmpvc01 ~]# cat /etc/default/grub
...
GRUB_CMDLINE_LINUX="crashkernel=auto resume=/dev/mapper/rhel-swap rd.lvm.lv=rhel/root rd.lvm.lv=rhel/swap rd.lvm.lv=rhel/usr net.ifnames=0 rhgb quiet"

[root@ibmpvc01 ~]# grub2-mkconfig -o /boot/grub2/grub.cfg
[root@ibmpvc01 ~]# init 6

After reboot

[root@ibmpvc01 ~]# lshw -class network -short
H/W path             Device      Class          Description
===========================================================
/0/100/16/0          eth0        network        VMXNET3 Ethernet Controller

Required repositories

• AppStream
• BaseOS
• ansible-automation-platform-setup-bundle (downloaded from Redhat)
• Redhat HA

Extract the package powervc-install-x86-rhel-2.0.0.0.tgz

[root@ibmpvc01 software]# cd powervc-opsmgr
[root@ibmpvc01 powervc-opsmgr]# ./setup_opsmgr.sh
################################################################################
Starting the PowerVC:setup_prepnode 2.0.2 installation on:
2021-09-23T12:23:39+02:00
################################################################################
International Program License Agreement

Part 1 - General Terms

BY DOWNLOADING, INSTALLING, COPYING, ACCESSING, CLICKING ON
AN "ACCEPT" BUTTON, OR OTHERWISE USING THE PROGRAM,
LICENSEE AGREES TO THE TERMS OF THIS AGREEMENT. IF YOU ARE
ACCEPTING THESE TERMS ON BEHALF OF LICENSEE, YOU REPRESENT
AND WARRANT THAT YOU HAVE FULL AUTHORITY TO BIND LICENSEE
TO THESE TERMS. IF YOU DO NOT AGREE TO THESE TERMS,

* DO NOT DOWNLOAD, INSTALL, COPY, ACCESS, CLICK ON AN
"ACCEPT" BUTTON, OR USE THE PROGRAM; AND

* PROMPTLY RETURN THE UNUSED MEDIA, DOCUMENTATION, AND

Press Enter to continue viewing the license agreement, or
enter "1" to accept the agreement, "2" to decline it, "3"
to print it, "4" to read non-IBM terms, or "99" to go back
to the previous screen.
1
2021-09-23T12:23:43.92+02:00 [INFO]:[] License accepted.
Configuring Yum repository...
2021-09-23T12:24:25.67+02:00 [INFO]:[VALIDATION] BASE DIRECTORY : /opt/ibm/powervc-opsmgr
2021-09-23T12:24:25.72+02:00 [INFO]:[VALIDATION] INSTALL SCRIPT : /software/powervc-opsmgr/setup_opsmgr.sh
2021-09-23T12:24:25.73+02:00 [INFO]:[VALIDATION] LOG FILE : /opt/ibm/powervc-opsmgr/log/prep_node/prep_node_2021-09-23-1223.log
2021-09-23T12:24:26.09+02:00 [INFO]:[VALIDATION] OPERATING SYSTEM: Red Hat Enterprise Linux.
2021-09-23T12:24:26.09+02:00 [INFO]:[VALIDATION] RHEL_VERSION : 84
2021-09-23T12:24:26.10+02:00 [INFO]:[VALIDATION] User ID : root
2021-09-23T12:24:33.36+02:00 [INFO]:[INSTALL_ANSIBLE] Ansible available for installation is 2.9
2021-09-23T12:24:33.36+02:00 [INFO]:[INSTALL_ANSIBLE] Ansible version 2.9 is not in repo, finding in additional repo of RHEL8
2021-09-23T12:24:34.58+02:00 [INFO]:[INSTALL_ANSIBLE] Ansible 2.9 installation started .....
2021-09-23T12:24:43.48+02:00 [INFO]:[INSTALL_ANSIBLE] Ansible packages installed successfully.
2021-09-23T12:24:45.05+02:00 [INFO]:[INSTALL_ANSIBLE] Ansible 2.9 installation completed .....
2021-09-23T12:24:45.05+02:00 [INFO]:[INSTALL_ANSIBLE] Installing PowerVC Ops. Manager...
2021-09-23T12:24:45.06+02:00 [INFO]:[INSTALL_POWERVC_OPSMGR] POWERVC OPSMGR PACKAGES : sshpass python3-netaddr rsync python3-oslo-i18n python3-powervc-opsmgr
2021-09-23T12:24:49.08+02:00 [INFO]:[INSTALL_POWERVC_OPSMGR] PowerVC Opsmgr packages installed successfully.
################################################################################
PowerVC:setup_prepnode installation completed at 2021-09-23T12:24:49+02:00.
Refer to
/opt/ibm/powervc-opsmgr/log/prep_node/prep_node_2021-09-23-1223.log
for more details.
################################################################################

Check if configuration exists

[root@ibmpvc01 ~]# powervc-opsmgr inventory -l
Error: No cluster/inventory found

IBM documentation tell to use install it the bad command

[root@ibmpvc01 powervc]# powervc-opsmgr install -c PowerVC
Error: Cluster/Inventory does not exist for PowerVC

Use instaed inventory to populate info, and create a cluster

[root@ibmpvc01 powervc]# powervc-opsmgr inventory -c PowerVC
*********************************************************
Install Private cloud edition(y/n): n
Enable Monitoring (y/n): y
Configure Firewall (y/n): y
*********************************************************
Enter the number of nodes: 1
*********************************************************
INFO: First node specified will be considered as primary host/node
*******************************************************
Enter IP/Hostname for Node 1: ibmpvc01
Enter Username for Node 1: root
Enter Password for Node 1: xxxxx
*********************************************************
Enter Virtual IP/Hostname: ibmpvc01-vip
Establishing passwordless connection

PLAY [Configure SSH Keys] ******************************************************

TASK [Gathering Facts] *********************************************************
Friday 24 September 2021  09:01:46 +0200 (0:00:00.027)       0:00:00.027 ******
ok: [ibmpvc01]
...
Inventory file generated successfully at /opt/ibm/powervc-opsmgr/ansible/inventory/PowerVC

[root@ibmpvc01 usr]# powervc-opsmgr inventory -l
Cluster name: PowerVC
Hosts: ['ibmpvc01']
Edition: powervc
Firewall Config: True
Monitoring: True
Primary host: ibmpvc01
Virtual IP: 10.1.38.60
---End of cluster PowerVC---

Once all repositories are available you can start the installation

logs are located in /opt/ibm/powervc-opsmgr/ansible/artifacts/

[root@ibmpvc01 usr]# powervc-opsmgr install -c PowerVC

PLAY [Precheck] ****************************************************************
Friday 24 September 2021  09:05:33 +0200 (0:00:00.061)       0:00:00.061 ******
ok: [ibmpvc01]

TASK [Gathering Facts] *********************************************************
ok: [ibmpvc01]
Friday 24 September 2021  09:05:34 +0200 (0:00:01.578)       0:00:01.639 ******
changed: [ibmpvc01]

If need to restart the installation use the option -f

[root@ibmpvc01 ~]# powervc-opsmgr install -c PowerVC -f
Powervc Install exists skipping precheck to rerun

Do not forget to rotate logs !

https://www.ibm.com/docs/en/powervc-cloud/2.2.0?topic=problems-powervc-log-management