Kernel Option "showopts"

user2304 · January 7, 2009, 10:18pm

Hello to everyone,

maybe a simple question, but i found nothing here in the forum nor by searching with google:

What means the boot option “showopts”?

Regards,

pepun

ken_yap · January 7, 2009, 10:56pm

It’s a special grub option, see here:

user2304 · January 8, 2009, 12:39am

Thanks.

Regards,
Pepun

rob-fortune · June 16, 2010, 4:39pm

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