The 2.4 kernel could not be built with both CONFIG_MAGIC_SYSRQ and CONFIG_DUMMY_KEYB enabled. This configuration should be possible since we can use Magic SysRq with serial driver. Here is a patch. diff -u linux-mips/drivers/char/dummy_keyb.c linux/drivers/char/dummy_keyb.c --- linux-mips/drivers/char/dummy_keyb.c Thu Jun 12 10:14:55 2003 +++ linux/drivers/char/dummy_keyb.c Fri Jan 9 17:28:37 2004 @@ -140,3 +140,7 @@ { printk("Dummy keyboard driver installed.\n"); } +#ifdef CONFIG_MAGIC_SYSRQ +unsigned char kbd_sysrq_key; +unsigned char kbd_sysrq_xlate[128]; +#endif --- Atsushi Nemoto