let kfs use more buffers.

Reference: /n/atom/patch/applied/instamd64buf
Date: Mon Jun 23 13:21:34 CES 2014
Signed-off-by: quanstro@quanstro.net

--- /sys/lib/dist/amd64/install/copydistk	Mon Jun 23 13:21:23 2014
+++ /sys/lib/dist/amd64/install/copydistk	Mon Jun 23 13:21:23 2014
@@ -8,7 +8,7 @@
 }
 
 fn copydistkfs {
-	kfs -b 8192 -r -f $disk/fs	|| fail
+	kfs -B 5000 -b 8192 -r -f $disk/fs	|| fail
 	mount -c /srv/kfs.inst /n/inst	|| fail
 	mount -c /srv/boot /n/atom		|| fail
 	kfscmd allow			|| fail
--- /sys/lib/dist/amd64/mkboot-install	Mon Jun 23 13:21:23 2014
+++ /sys/lib/dist/amd64/mkboot-install	Mon Jun 23 13:21:23 2014
@@ -19,7 +19,7 @@
 }
 9fs -a atom 			|| fail
 bind /amd64 /n/atom/plan9/amd64	|| fail
-disk/kfs -b 8192 -r -f $1/fs		|| fail
+disk/kfs -B5000 -b 8192 -r -f $1/fs		|| fail
 mount -c /srv/kfs /n/kfs		|| fail
 disk/kfscmd allow			|| fail
 disk/mkfs -kU -s /n/atom/plan9 -d /n/kfs proto/users	|| fail