kernel showopts

Today , I notice the kernel parameter :showopts

According to:

Answer: when using grub put the options before grub keyword showopts in the file /boot/grub/menu.lst.

An example of a grub line showing options on the boot prompt:

kernel (hd0,10)/boot/vmlinuz root=/dev/hda11 showopts ide=nodma apm=off \
vga=normal noresume selinux=0 barrier=off nosmp noapic maxcpus=0 3

The options won't be shown if the showopts keyword is moved to the end of line:

kernel (hd0,10)/boot/vmlinuz root=/dev/hda11 ide=nodma apm=off \

vga=normal noresume selinux=0 barrier=off nosmp noapic maxcpus=0 3 showopts

test it :

after move showopts  :

 

so , showopts  only influence the grub graphic interface , to text mode is invalid.