Look in /dev/fs/9fat.
 [rsc] --rwxrwxr-x M 374841 glenda sys 367 Nov 28 07:08 rc/bin/9fat:
	/n/sourcesdump/2005/1128/plan9/rc/bin/9fat::1,7 - 
	/n/sourcesdump/2005/1129/plan9/rc/bin/9fat::1,7
	  #!/bin/rc
	  
	  rfork e
	- part=`{ls /dev/sd*/9fat >[2]/dev/null}
	+ part=`{ls /dev/fs/9fat /dev/sd*/9fat >[2]/dev/null}
	  if(~ $#part 0) {
	  	echo 'no 9fat partition found' >[1=2]
	  	exit no.9fat

Add -A option.
 [rsc] --rw-rw-r-- M 374841 glenda sys 3202 Nov 28 07:25 sys/man/4/import
	/n/sourcesdump/2005/1128/plan9/sys/man/4/import:61,66 - 
	/n/sourcesdump/2005/1129/plan9/sys/man/4/import:61,70
	  .I file
	  is a directory.
	  .TP
	+ .B -A
	+ Skip the authentication protocol.
	+ This is useful for connecting to foreign systems like Inferno.
	+ .TP
	  .B -B
	  Run in ``backwards'' mode, described below.
	  .TP
 [rsc] --rw-rw-r-- M 374841 glenda sys 7028 Nov 28 07:25 sys/src/cmd/import.c
	/n/sourcesdump/2005/1128/plan9/sys/src/cmd/import.c:23,28 - 
	/n/sourcesdump/2005/1129/plan9/sys/src/cmd/import.c:23,29
	  char		*aan = "/bin/aan";
	  AuthInfo 	*ai;
	  int		debug;
	+ int		doauth = 1;
	  
	  int	connect(char*, char*, int);
	  int	passive(void);
	/n/sourcesdump/2005/1128/plan9/sys/src/cmd/import.c:74,79 - 
	/n/sourcesdump/2005/1129/plan9/sys/src/cmd/import.c:75,83
	  	oldserver = 0;
	  	mntflags = MREPL;
	  	ARGBEGIN{
	+ 	case 'A':
	+ 		doauth = 0;
	+ 		break;
	  	case 'a':
	  		mntflags = MAFTER;
	  		break;
	/n/sourcesdump/2005/1128/plan9/sys/src/cmd/import.c:264,278 - 
	/n/sourcesdump/2005/1129/plan9/sys/src/cmd/import.c:268,284
	  	if((fd = dial(na, 0, dir, 0)) < 0)
	  		sysfatal("can't dial %s: %r", system);
	  
	- 	if(oldserver)
	- 		authp = "p9sk2";
	- 	else
	- 		authp = "p9any";
	+ 	if(doauth){
	+ 		if(oldserver)
	+ 			authp = "p9sk2";
	+ 		else
	+ 			authp = "p9any";
	+ 	
	+ 		ai = auth_proxy(fd, auth_getkey, "proto=%q role=client %s", authp, keyspec);
	+ 		if(ai == nil)
	+ 			sysfatal("%r: %s", system);
	+ 	}
	  
	- 	ai = auth_proxy(fd, auth_getkey, "proto=%q role=client %s", authp, keyspec);
	- 	if(ai == nil)
	- 		sysfatal("%r: %s", system);
	- 
	  	n = write(fd, tree, strlen(tree));
	  	if(n < 0)
	  		sysfatal("can't write tree: %r");
	/n/sourcesdump/2005/1128/plan9/sys/src/cmd/import.c:295,300 - 
	/n/sourcesdump/2005/1129/plan9/sys/src/cmd/import.c:301,310
	  {
	  	int fd;
	  
	+ 	/*
	+ 	 * Ignore doauth==0 on purpose.  Is it useful here?
	+ 	 */
	+ 
	  	ai = auth_proxy(0, auth_getkey, "proto=p9any role=server");
	  	if(ai == nil)
	  		sysfatal("auth_proxy: %r");
	/n/sourcesdump/2005/1128/plan9/sys/src/cmd/import.c:314,320 - 
	/n/sourcesdump/2005/1129/plan9/sys/src/cmd/import.c:324,330
	  void
	  usage(void)
	  {
	- 	fprint(2, "usage: import [-abcC] [-E clear|ssl|tls] [-e 'crypt auth'|clear] [-k keypattern] [-p] host remotefs [mountpoint]\n");
	+ 	fprint(2, "usage: import [-abcC] [-A] [-E clear|ssl|tls] [-e 'crypt auth'|clear] [-k keypattern] [-p] host remotefs [mountpoint]\n");
	  	exits("usage");
	  }
	  

Fix double-free.
 [rsc] --rw-rw-r-- M 374841 glenda sys 16904 Nov 28 07:26 sys/src/lib9p/srv.c
	/n/sourcesdump/2005/1128/plan9/sys/src/lib9p/srv.c:806,811 - 
	/n/sourcesdump/2005/1129/plan9/sys/src/lib9p/srv.c:806,813
	  	for(i=0; i<r->nflush; i++)
	  		respond(r->flush[i], nil);
	  	free(r->flush);
	+ 	r->flush = nil;
	+ 	r->nflush = 0;
	  
	  	if(r->pool)
	  		closereq(r);

Clean up plumbopen, try to create ports that don't exist.
 [rsc] --rw-rw-r-- M 374841 glenda sys 7080 Nov 28 07:17 sys/src/libplumb/mesg.c
	/n/sourcesdump/2005/1128/plan9/sys/src/libplumb/mesg.c:8,37 - 
	/n/sourcesdump/2005/1129/plan9/sys/src/libplumb/mesg.c:8,54
	  plumbopen(char *name, int omode)
	  {
	  	int fd, f;
	- 	char *s;
	- 	char buf[128];
	+ 	char *s, *plumber;
	+ 	char buf[128], err[ERRMAX];
	  
	  	if(name[0] == '/')
	  		return open(name, omode);
	- 	snprint(buf, sizeof buf, "/mnt/plumb/%s", name);
	+ 		
	+ 	/* find elusive plumber */
	+ 	if(access("/mnt/plumb/send", OWRITE) >= 0)
	+ 		plumber = "/mnt/plumb";
	+ 	else if(access("/mnt/term/mnt/plumb/send", OWRITE) >= 0)
	+ 		plumber = "/mnt/term/mnt/plumb";
	+ 	else{
	+ 		/* last resort: try mounting service */
	+ 		plumber = "/mnt/plumb";
	+ 		s = getenv("plumbsrv");
	+ 		if(s == nil)
	+ 			return -1;
	+ 		f = open(s, ORDWR);
	+ 		if(f < 0)
	+ 			return -1;
	+ 		if(mount(f, -1, "/mnt/plumb", MREPL, "") < 0){
	+ 			close(f);
	+ 			return -1;
	+ 		}
	+ 		if(access("/mnt/plumb/send", OWRITE) < 0)
	+ 			return -1;
	+ 	}
	+ 
	+ 	snprint(buf, sizeof buf, "%s/%s", plumber, name);
	  	fd = open(buf, omode);
	  	if(fd >= 0)
	  		return fd;
	- 	snprint(buf, sizeof buf, "/mnt/term/mnt/plumb/%s", name);
	- 	fd = open(buf, omode);
	+ 
	+ 	/* try creating port; used by non-standard plumb implementations */
	+ 	rerrstr(err, sizeof err);
	+ 	fd = create(buf, omode, 0600);
	  	if(fd >= 0)
	  		return fd;
	- 	/* try mounting service */
	- 	s = getenv("plumbsrv");
	- 	if(s == nil)
	- 		return -1;
	- 	f = open(s, ORDWR);
	- 	if(f < 0)
	- 		return -1;
	- 	if(mount(f, -1, "/mnt/plumb", MREPL, "") < 0)
	- 		return -1;
	- 	snprint(buf, sizeof buf, "/mnt/plumb/%s", name);
	- 	return open(buf, omode);
	+ 	errstr(err, sizeof err);
	+ 
	+ 	return -1;
	  }
	  
	  static int

Parse new /dev/swap.
 [rsc] --rwxrwxr-x M 374841 rsc sys 1996 Nov 28 09:12 sys/lib/dist/pc/inst/fmtfossil
	/n/sourcesdump/2005/1128/plan9/sys/lib/dist/pc/inst/fmtfossil:58,64 - 
	/n/sourcesdump/2005/1129/plan9/sys/lib/dist/pc/inst/fmtfossil:58,64
	  	}
	  	if(~ $do yes){
	  		fossil/flfmt -y $f
	- 		n=`{cat /dev/swap | sed 's/^[0-9]+\/([0-9]+) .*/\1/'}
	+ 		n=`{cat /dev/swap | grep ' user' | sed 's/^[0-9]+\/([0-9]+) .*/\1/'}
	  		if(test $n -gt 32768)
	  			m=3000	# if have at least 128 user MB, use 24MB for fossil
	  		if not if(test $n -gt 16384)

Cache size has already been determined.
 [rsc] --rwxrwxr-x M 374841 rsc sys 2511 Nov 28 09:12 sys/lib/dist/pc/inst/mountfossil
	/n/sourcesdump/2005/1128/plan9/sys/lib/dist/pc/inst/mountfossil:20,26 - 
	/n/sourcesdump/2005/1129/plan9/sys/lib/dist/pc/inst/mountfossil:20,26
	  	if(! ps | grep -s ' fossil$'){
	  		echo 'srv -p fscons' > /env/fossilconf
	  		echo 'srv -AP fossil' >> /env/fossilconf
	- 		fossil/conf $fossil | sed 's/^fsys main open .*/& -c 100 -AWVP/' |
	+ 		fossil/conf $fossil | sed 's/^fsys main open .*/& -AWVP/' |
	  			sed 's/^fsys main snaptime .*//' >> /env/fossilconf
	  		if(! logprog fossil/fossil -c .' /env/fossilconf'>>[2]/srv/log){
	  			echo 'fossil: '^$status

Better DMA handling.
 [rsc] --rw-rw-r-- M 374841 glenda sys 2466 Nov 28 09:22 sys/lib/dist/pc/sub/termrc
	/n/sourcesdump/2005/1128/plan9/sys/lib/dist/pc/sub/termrc:18,27 - 
	/n/sourcesdump/2005/1129/plan9/sys/lib/dist/pc/sub/termrc:18,27
	  for(disk in /dev/sd??) {
	  	if(test -f $disk/data && test -f $disk/ctl){
	  		disk/fdisk -p $disk/data >$disk/ctl >[2]/dev/null
	- 		if(~ $#nosddma 0)
	- 			echo dma on >$disk/ctl
	- 		if(~ $#nosdrwm 0)
	- 			echo rwm on >$disk/ctl
	+ #		if(~ $#nosddma 0)
	+ #			echo dma on >$disk/ctl
	+ #		if(~ $#nosdrwm 0)
	+ #			echo rwm on >$disk/ctl
	  	}
	  }
	  
	/n/sourcesdump/2005/1128/plan9/sys/lib/dist/pc/sub/termrc:70,76 - 
	/n/sourcesdump/2005/1129/plan9/sys/lib/dist/pc/sub/termrc:70,76
	  if(~ $dmamode yes)
	  	for(i in /dev/sd*/ctl)
	  		if(test -f $i)
	- 			{echo dma on; echo rwm on} >$i
	+ 			{echo dma on; echo rwm on >[2]/dev/null} >$i
	  
	  if(~ $installmode ask){
	  	echo -n 'install mode is (text, graphics)[graphics]: '

Handle Voodoo 3dfx card.
 [rsc] --rw-rw-r-- M 374841 glenda sys 3833 Nov 28 17:52 sys/src/9/pc/vga3dfx.c
 [rsc] --rw-rw-r-- M 374841 glenda sys 13797 Nov 28 17:52 sys/src/9/pc/screen.c
	/n/sourcesdump/2005/1128/plan9/sys/src/9/pc/screen.c:454,459 - 
	/n/sourcesdump/2005/1129/plan9/sys/src/9/pc/screen.c:454,465
	  	 * Scan for largest memory region on card.
	  	 * Some S3 cards (e.g. Savage) have enormous
	  	 * mmio regions (but even larger frame buffers).
	+ 	 * Some 3dfx cards (e.g., Voodoo3) have mmio
	+ 	 * buffers the same size as the frame buffer,
	+ 	 * but only the frame buffer is marked as
	+ 	 * prefetchable (bar&8).  If a card doesn't fit
	+ 	 * into these heuristics, its driver will have to
	+ 	 * call vgalinearaddr directly.
	  	 */
	  	best = -1;
	  	for(i=0; i<nelem(p->mem); i++){
	/n/sourcesdump/2005/1128/plan9/sys/src/9/pc/screen.c:461,467 - 
	/n/sourcesdump/2005/1129/plan9/sys/src/9/pc/screen.c:467,475
	  			continue;
	  		if(p->mem[i].size < 640*480)	/* not big enough */
	  			continue;
	- 		if(best==-1 || p->mem[i].size > p->mem[best].size)
	+ 		if(best==-1 
	+ 		|| p->mem[i].size > p->mem[best].size 
	+ 		|| (p->mem[i].size == p->mem[best].size && (p->mem[i].bar&8)))
	  			best = i;
	  	}
	  	if(best >= 0){
 [rsc] --rw-rw-r-- M 374841 glenda sys 3833 Nov 28 17:52 sys/src/9/pc/vga3dfx.c