grub 起動時に起動オプションを変更する場合、日本語キーボード配列ではなくストレスたまるので、grub.conf にこれを書いてあげましょう。
setkey at bracketleft setkey doublequote at setkey ampersand caret setkey quote ampersand setkey parenleft asterisk setkey parenright parenleft setkey tilde parenright setkey equal underscore setkey plus colon setkey colon quote setkey asterisk doublequote setkey bracketleft bracketright setkey braceleft braceright setkey bracketright backslash setkey braceright bar setkey backslash equal setkey underscore plus setkey backslash bracketleft setkey bar braceleft setkey F9 equal setkey F10 bracketleft setkey equal k73 setkey bracketleft k7d
