|  |  | 
|  | #define INITRD_MINOR 250 /* shouldn't collide with /dev/ram* too soon ... */ | 
|  |  | 
|  | /* 1 = load ramdisk, 0 = don't load */ | 
|  | extern int rd_doload; | 
|  |  | 
|  | /* 1 = prompt for ramdisk, 0 = don't prompt */ | 
|  | extern int rd_prompt; | 
|  |  | 
|  | /* starting block # of image */ | 
|  | extern int rd_image_start; | 
|  |  | 
|  | /* 1 if it is not an error if initrd_start < memory_start */ | 
|  | extern int initrd_below_start_ok; | 
|  |  | 
|  | /* free_initrd_mem always gets called with the next two as arguments.. */ | 
|  | extern unsigned long initrd_start, initrd_end; | 
|  | extern void free_initrd_mem(unsigned long, unsigned long); | 
|  |  | 
|  | extern unsigned int real_root_dev; |