On Wed, Apr 20, 2011 at 05:18:50PM +1000, James Cameron wrote:
> There is one small problem left to fix; Q3A64 fs-update displays an
> error at the end because the total number of blocks written has not
> agreed with the number of blocks specified at the top of the file. I
> propose to fix that somehow, but I've yet to decide on exactly how.
> It was introduced by -r2186, where on your request Mitch changed the
> check from last block written to number of blocks written. It does
> not happen with Q3A62.
I've fixed this locally and tested with my sparse .zd file, and
os860.zd. The patch is attached for review.
I've changed the ?all-written check, which happens after the blocks are
written, so that it reports a warning if either:
- the highest block written is below the end of the image, and/or;
- the lowest block written is not zero.
For an fs-update of a sparse .zd file, using a partial download, the
first warning appears after "Short read of zdata file".
For an fs-update of a zero block last .zd file, using a partial
download, both warnings shall appear.
This changes the meaning of the #image-eblocks value from a count of
blocks expected, to a count of blocks in the original image from which
the .zd was made.
(Also, in the previous code, #eblocks-written was not reset when
fs-update started, so I suspect a second fs-update would have generated
a spurious warning.)
Do you have a sample of your "write zero block last" .zd file? I've
looked at os16.zd2.zsp but it writes zero block first. I really should
set up an F14 builder here. Got any checklist?
--
James Cameron
http://quozl.linux.org.au/
Index: cpu/x86/pc/olpc/via/fsupdate.fth
===================================================================
--- cpu/x86/pc/olpc/via/fsupdate.fth (revision 2191)
+++ cpu/x86/pc/olpc/via/fsupdate.fth (working copy)
@@ -8,16 +8,30 @@
push-hex $number pop-base " Bad number" ?nand-abort
;
-0 value #eblocks-written
+0 value min-eblock#
+0 value max-eblock#
+: written ( eblock# -- )
+ dup
+ max-eblock# max to max-eblock# ( eblock# )
+ min-eblock# min to min-eblock#
+;
+
: ?all-written ( -- )
- #eblocks-written #image-eblocks <> if
+ max-eblock# 1+ #image-eblocks <> if
cr
red-letters
- ." WARNING: The file specified " #image-eblocks .d
- ." chunks but wrote only " #eblocks-written .d ." chunks" cr
+ ." WARNING: The file said highest block " #image-eblocks .d
+ ." but wrote only as high as block " max-eblock# .d cr
black-letters
then
+ min-eblock# 0 <> if
+ cr
+ red-letters
+ ." WARNING: The file did not write a zero block, "
+ ." but wrote only as low as block " min-eblock# .d cr
+ black-letters
+ then
;
0 value secure-fsupdate?
@@ -57,6 +71,8 @@
?compare-spec-line
get-hex# to /nand-block
get-hex# to #image-eblocks
+ #image-eblocks to min-eblock#
+ 0 to max-eblock#
" size" $call-nand #image-eblocks /nand-block um* d<
" Image size is larger than output device" ?nand-abort
#image-eblocks show-init
@@ -200,8 +216,8 @@
swap-buffers ( eblock# )
\ then
+ dup written ( eblock# )
show-written ( )
- #eblocks-written 1+ to #eblocks-written ( )
show-temperature
hdd-led-toggle
;
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