This is the patch for Linux 1.0.x's ramdisk.c that allows you to switch in
a different floppy before loading the ramdisk.

*** ramdisk.c.orig	Mon Nov 29 19:09:22 1993
--- ramdisk.c	Sat Dec  4 04:08:49 1993
***************
*** 27,32 ****
--- 27,34 ----
  int	rd_length = 0;
  static int rd_blocksizes[2] = {0, 0};
  
+ extern void wait_for_keypress(void);
+ 
  static void do_rd_request(void)
  {
  	int	len;
***************
*** 110,115 ****
--- 112,124 ----
  
  	/* If no RAM disk specified, give up early. */
  	if (!rd_length) return;
+ 
+         /* Pat's ugly hack */
+ 	printk("\nPlease remove the boot kernel disk from your floppy drive,\n");
+         printk("insert a disk to be loaded into the ramdisk, and press\n");
+         printk("[enter] to continue.\n\n");
+ 	wait_for_keypress();
+ 
  	printk("RAMDISK: %d bytes, starting at 0x%x\n",
  					rd_length, (int) rd_start);