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Description of problem:

/etc/defaut/grub doesn't exist but according to the man page of grubby, "if the ALL argument is used the variable  GRUB_CMDLINE_LINUX in /etc/default/grub is updated with the latest kernel argument list".

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


How reproducible:
always

Steps to Reproduce:
1.
2.
3.

Actual results:


Expected results:


Additional info:

Cosmetic docs change.

--update-kernel=kernel-path
              The entries for kernels matching kernel-path are updated. Currently the only items that can be updated is the  kernel
              argument  list,  which is modified via the --args and --remove-args options. If the ALL argument is used the variable
              GRUB_CMDLINE_LINUX in /etc/default/grub is updated with the latest kernel argument list, unless the --no-etc-grub-up‐
              date option is used or the file does not exist (e.g., on s390x).

Setting Verified: Tested

Checked that fixed version landed in compose

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 (grubby 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-2022:8339