Record the production rootfs size for tracking with autotest

Record the production rootfs size for tracking with autotest

[sosa, 2010-01-14 03:30:46]

lgtm, but i'd check about placement with other people.  I understand you're
worried that pushing the file and installing an image may overwrite some other
places, but I believe you should put this on the stateful partition and not in
/root.  I'd suggest /var/log/metrics.

Sadly this would require changing your autotest test

http://codereview.chromium.org/536057/diff/1/2
File src/scripts/mod_for_test_scripts/000recordRootFsSize (right):

http://codereview.chromium.org/536057/diff/1/2#newcode13
src/scripts/mod_for_test_scripts/000recordRootFsSize:13:
FILE="/root/bytes-rootfs-prod"
Can't you just put this under /var/log/metrics?  I haven't seen much other
things placed in /root

[kmixter1, 2010-01-14 23:07:47]

http://codereview.chromium.org/536057/diff/1/2
File src/scripts/mod_for_test_scripts/000recordRootFsSize (right):

http://codereview.chromium.org/536057/diff/1/2#newcode13
src/scripts/mod_for_test_scripts/000recordRootFsSize:13:
FILE="/root/bytes-rootfs-prod"
On 2010/01/14 03:30:46, sosa wrote:
> Can't you just put this under /var/log/metrics?  I haven't seen much other
> things placed in /root

The stateful partition isn't created as part of rootfs creation (when
mod_image_for_test runs), and we want to capture the size before
mod_image_for_test runs, so storing it in the rootfs seems most appropriate.

[sosa, 2010-01-14 23:09:10]

LGTM