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Description of problem:
When the ksdevice= boot argument is used on the kernel command line, the installer prints the following warning:

...
[    9.023243] dracut-cmdline[329]: Warning: 'ksdevice=bootif' 
[    9.024750] dracut-cmdline[329]: Warning: ksdevice has been deprecated. All usage of Anaconda boot arguments without 'inst.' prefix have been deprecated and will be removed in a future major release. Please use inst.ks.device instead. 
...

Although the "ksdevice" has been marked as deprecated, it still can be used. On the other hand, the recommended "inst.ks.device" argument is not implemented at all. The user gets an incorrect recommendation and if the recommendation is applied, it could lead to a regression.

Version-Release number of selected component (if applicable):
RHEL-8.4 GA

How reproducible:
Always

Steps to Reproduce:
1. Boot the installer with the ksdevice= argument - for example "ksdevice=bootif"

Actual results:
The installer recommends to use "inst.ks.device" instead, but the argument is not implemented at all.

Expected results:
The warning doesn't suggest using an unimplemented argument.

The same problem should be fixed in RHEL-9, see bug 2000140.

https://github.com/rhinstaller/anaconda/pull/3593

The change from comment 6 was successfully tested by QE - the warning is not shown any more.

anaconda-33.16.5.5-1.el8 is present in RHEL-8.5.0-20210921.n.0, moving to VERIFIED.

Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.

For information on the advisory (anaconda bug fix and enhancement update), and where to find the updated
files, follow the link below.

If the solution does not work for you, open a new bug report.

https://access.redhat.com/errata/RHBA-2021:4254