RHEL Engineering is moving the tracking of its product development work on RHEL 6 through RHEL 9 to Red Hat Jira (issues.redhat.com). If you're a Red Hat customer, please continue to file support cases via the Red Hat customer portal. If you're not, please head to the "RHEL project" in Red Hat Jira and file new tickets here. Individual Bugzilla bugs in the statuses "NEW", "ASSIGNED", and "POST" are being migrated throughout September 2023. Bugs of Red Hat partners with an assigned Engineering Partner Manager (EPM) are migrated in late September as per pre-agreed dates. Bugs against components "kernel", "kernel-rt", and "kpatch" are only migrated if still in "NEW" or "ASSIGNED". If you cannot log in to RH Jira, please consult article #7032570. That failing, please send an e-mail to the RH Jira admins at rh-issues@redhat.com to troubleshoot your issue as a user management inquiry. The email creates a ServiceNow ticket with Red Hat. Individual Bugzilla bugs that are migrated will be moved to status "CLOSED", resolution "MIGRATED", and set with "MigratedToJIRA" in "Keywords". The link to the successor Jira issue will be found under "Links", have a little "two-footprint" icon next to it, and direct you to the "RHEL project" in Red Hat Jira (issue links are of type "https://issues.redhat.com/browse/RHEL-XXXX", where "X" is a digit). This same link will be available in a blue banner at the top of the page informing you that that bug has been migrated.

Document URL: 
https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/8/html/performing_an_advanced_rhel_8_installation/kickstart-and-advanced-boot-options_installing-rhel-as-an-experienced-user#storage-boot-options_kickstart-and-advanced-boot-options

Section Number and Name: 
16.7. Storage boot options (RHEL-8)
1.7. Storage boot options (RHEL-9)

Describe the issue: 
There is a new boot option inst.wait_for_disks= implemented in RHEL-8.9/9.3, see bug 1770969 and bug 2171811.

Suggestions for improvement:
A proposed text to be added to the installation guide:

============
inst.wait_for_disks=
Use the inst.wait_for_disks= option to specify the number of seconds the installer should wait for disk devices to appear at the beginning of the installation. This option is useful when an OEMDRV labeled device is used to automatically load a kickstart file or the kernel drivers, but the OEMDRV device takes a long time to appear during the boot process. The installer waits at least 5 seconds by default. Use 0 seconds to minimize the delay.
============


Additional information: 
Note that this boot option will be available since 8.9 and 9.3, so this should be noted in the installation guide as well.

RNs and other document is published. Hence no more work is pending on this issue. 

https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/9/html-single/boot_options_for_rhel_installer/index#storage-boot-options_kickstart-and-advanced-boot-options

Closing the issue for now. In case any more updates are required, feel free to reopen this ticket or create a new one. 

thank you :)