Kernel parameters
The kernel parameters are in form of an ASCII text string of up to 895 characters. If the boot device is the z/VM® reader, the string can also be encoded in EBCDIC.
Individual kernel parameters are single keywords or keyword/value pairs of the form keyword=<value> with no blank. Blanks are used to separate consecutive parameters.
You specify kernel parameters when you create your boot configuration with GRUB 2. Depending on your boot method, you can add kernel parameters when starting the boot process.
Important: Do not specify parameters that prevent SUSE Linux® Enterprise Server 15 SP5 from booting. See Avoid parameters that break GRUB 2.