The following reply was made to PR install/37521; it has been noted by GNATS.

From: Izumi Tsutsui <tsutsui@ceres.dti.ne.jp>
To: sborrill@netbsd.org
Cc: gson@gson.org, gnats-bugs@netbsd.org, tsutsui@ceres.dti.ne.jp
Subject: Re: install/37521: qemu install from NetBSD-current install floppiesfails
Date: Wed, 12 Dec 2007 22:45:13 +0900

 sborrill@netbsd.org wrote:
 
 > Yes, it would be best to use -DSMALL when building /boot for floppies. I
 > suspect we are using the same /boot throughout (though I've not
 > checked). Or as Izumi suggests, we detect the target file system type
 > and return early from parsebootconf().
 
 Could you please take this PR?
 
 (My too ugly patch attached)
 ---
 Izumi Tsutsui
 
 
 Index: boot2.c
 ===================================================================
 RCS file: /cvsroot/src/sys/arch/i386/stand/boot/boot2.c,v
 retrieving revision 1.16
 diff -u -r1.16 boot2.c
 --- boot2.c	23 Nov 2007 13:47:03 -0000	1.16
 +++ boot2.c	12 Dec 2007 13:38:16 -0000
 @@ -52,6 +52,9 @@
  #include <libi386.h>
  #include "devopen.h"
  
 +#ifdef SUPPORT_USTARFS
 +#include "ustarfs.h"
 +#endif
  #ifdef SUPPORT_PS2
  #include <biosmca.h>
  #endif
 @@ -298,6 +301,26 @@
  	int fd, err, off;
  	struct stat st;
  	char *value, *key;
 +#ifdef SUPPORT_USTARFS
 +	void *op_open;
 +#endif
 +
 +	/* don't try to open BOOTCONF if the target fs is ustarfs */
 +#ifdef SUPPORT_USTARFS
 +#if !defined(LIBSA_SINGLE_FILESYSTEM)
 +	fd = open("boot", 0);	/* assume we are loaded as "boot" from here */
 +	if (fd < 0)
 +		op_open = NULL;	/* XXX */
 +	else {
 +		op_open = files[fd].f_ops->open;
 +		close(fd);
 +	}
 +#else
 +	op_open = file_system[0].open;
 +#endif	/* !LIBSA_SINGLE_FILESYSTEM */
 +	if (op_open == ustarfs_open)
 +		return;
 +#endif	/* SUPPORT_USTARFS */
  
  	/* Clear bootconf structure */
  	bzero((void *)&bootconf, sizeof(bootconf));
 @@ -305,14 +328,16 @@
  	/* Set timeout to configured */
  	bootconf.timeout = boot_params.bp_timeout;
  
 -	err = stat(BOOTCONF, &st);
 -	if (err == -1)
 -		return;
 -
  	fd = open(BOOTCONF, 0);
  	if (fd < 0)
  		return;
  	
 +	err = fstat(fd, &st);
 +	if (err == -1) {
 +		close(fd);
 +		return;
 +	}
 +
  	bc = alloc(st.st_size + 1);
  	if (bc == NULL) {
  		printf("Could not allocate memory for boot configuration\n");