1 grub信息
2 kernel信息
3 application 信息
后面两个信息可以通过在grub中传递 CONSOLE=/dev/null 和 console=/dev/null实现屏蔽，但是从grub启动后仍然会出现如
引用:"Booting Gentoo Linux 2.6.23 r3"
root (hd0,0)
kernel /boot/kernle-2.6.23-gentoo-r3 root=/dev/sda3
Linux setup size
等字样
因为这是grub打印出来的信息，所以只能从grub自身着手，修改grub 代码，不输出这部分信息
首先去除 Booting字样，这是在grub/stage2/stage2.c boot_entry: 段落中输出
引用:{
if (config_entries)
printf (" Booting Lynn Linux,pls waiting ^_^ \n");
// printf (" Booting1 \'%s\'\n\n",
// get_entry (menu_entries, first_entry + entryno, 0));
else
printf (" Booting Lynn Linux ,pls waiting ^_^\n");
// printf (" Booting1 command-list\n\n");
把grub_printf注释掉，就可以了
在stage2/cmdline.c中
引用:builtin = find_command (heap);
if (! builtin)
{
// grub_printf ("%s\n", old_entry);
continue;
}
if (! (builtin->flags & BUILTIN_NO_ECHO))
// grub_printf ("%s\n", old_entry);
/* If BUILTIN cannot be run in the command-line, skip it. */
if (! (builtin->flags & BUILTIN_CMDLINE))
{
errnum = ERR_UNRECOGNIZED;
continue;
}
/* Invalidate the cache, because the user may exchange removable
disks. */
buf_drive = -1;
这样，就屏蔽了第二部分信息
第三部分信息是在 stage2/boot.c中
引用:if (! big_linux
&& text_len > linux_data_real_addr - (char *) LINUX_ZIMAGE_ADDR)
{
grub_printf (" linux 'zImage' kernel too big, try 'make bzImage'\n");
errnum = ERR_WONT_FIT;
}
else if (linux_data_real_addr + LINUX_SETUP_MOVE_SIZE
> RAW_ADDR ((char *) (mbi.mem_lower 10)))
errnum = ERR_WONT_FIT;
else
{
// grub_printf(" lynn linux image \n");
// grub_printf (" [Linux-%s, setup=0x%x, size=0x%x]\n",
// (big_linux ? "bzImage" : "zImage"), data_len, text_len);
/* Video mode selection support. What a mess! */
/* NOTE: Even the word "mess" is not still enough to
represent how wrong and bad the Linux video support is,
but I don't want to hear complaints from Linux fanatics
any more. -okuji */
这样，通过修改grub代码和穿参数给kernel，就可以屏蔽linux 启动信息了，当然如果你甚至不想要grub菜单出现，那么也是可以实现的，因为菜单是通过grub打印的，所以也只有修改grub 代码可以做到，这里就不再介绍了。