Hi Christopher,
Thanks for the explanation between the test/basic-confirm and
confirm-hash differences. I didn't realize the distinction, but it
clarifies a number of things for me for the mobile app (visible in the
store now:
https://itunes.apple.com/app/adafruit-mynewt-manager/id1272085812?mt=8)
I'll try with the newtmgr commands again on a clean machine. It may well
be that the error message is an artifact of some previous system or tool
configuration.
Kevin
On 22/08/17 20:00, Christopher Collins wrote:
Hi Kevin,
On Wed, Aug 16, 2017 at 11:45:52PM +0200, Kevin Townsend wrote:
I'm doing some tests with newtmgr over serial since this is the lowest
cost mechanism for many users (no J-Link required), and the update
process as I understand it is as follows:
- $ newtmgr -c serial1 image upload mysignedimage.img
^ This will write the new image in slot=1 with no flags set
- $ newtmgr -c serial1 image test
4d0ff81e083f8cc9d428e8bb70ed86ae98f237ce8dd59bfd33f7493874addd1d
^ This will set the flags to 'pending' and when you reset, the image
will be moved into slot 0 and the old image will be switched to slot 1
- $ newtmgr -c serial1 reset
^ Wait for the flash switch to finish ...
The new image is now marked as 'active' but the old image has the
'confirmed' flag set so resetting again will cause the device to revert
to the old image if no action is taken,
All correct.
so first we need to ...
- $ newtmgr -c serial1 image confirm
4d0ff81e083f8cc9d428e8bb70ed86ae98f237ce8dd59bfd33f7493874addd1d
^ This will 'confirm' the new image (I don't think the hash is
necessary though), and then the old image will no longer be marked as
'confirmed' and resetting will maintain the new image. Notice no more
'confirmed' flag on slot 1 here, and slot 0 is now 'confirmed'
$ newtmgr -c serial1 image list
Images:
slot=0
version: 0.7.0
bootable: true
flags: active confirmed
hash:
4d0ff81e083f8cc9d428e8bb70ed86ae98f237ce8dd59bfd33f7493874addd1d
slot=1
version: 0.6.0
bootable: true
flags:
hash:
9a8fce478019c5e806253c307d32ddeab559ff6dc2577670ff6e0b1cb72f929b
Split status: N/A (0)
What confused me is that no matter if I use the has or not with 'image
confirm' I always get 'Error: 1' in the output, which is confusing.
$ newtmgr -c serial1 image confirm
4d0ff81e083f8cc9d428e8bb70ed86ae98f237ce8dd59bfd33f7493874addd1d
Error: 1
$ newtmgr -c serial1 image confirm
Error: 1
Is there a logical explanation for this? I'm running the 1.1 binaries
installed via brew on OS X 10.11.6.
The "image confirm" command behaves differently if you specify the hash
argument:
* Confirm-without-hash: This is the "safe" version of the command. It
confirms the currently-running image. This can only be used when you
are "testing out" an image (i.e., slot 0 is active but not confirmed,
slot 1 is confirmed but not active).
* Confirm <hash>: This is the unsafe version. It allows you to bypass
the "image test" step. Say you have the following image state:
slot 0: active confirmed, hash=xxx
slot 1: <no flags>, hash=yyy
If you issue an "image confirm <slot-1>" command and reset the device,
the image state will look like this:
slot 0: active confirmed, hash=yyy
slot 1: <no flags>, hash=xxx
In other words, this version of "image confirm" permanently swaps to an
untested image. This might be useful for upgrading lots of devices
to a known-good image.
Regarding the "Error: 1" message - I'm afraid I don't have an
explanation. Are you sending the confirms immediately after the "image
list" commands? That is, is the board in the (slot0: active confirmed,
slot1: <no flags>) state when you get the error? If so, I am not able
to reproduce that behavior:
[ccollins@ccollins-mac:~/repos/mynewt/core]$ newtmgr -c bhd-oic --name c5
image list
Images:
slot=0
version: 5.5.5.5
bootable: true
flags: active confirmed
hash: ec4044b698f06f9d3128b2b900c4da0d15a500b77f0378a2bad5f87b43c1bd42
slot=1
version: 0.0.0
bootable: true
flags:
hash: 59477eca25d3deb4edc0b1ef80f1f517f37b90d127ef33597d21ba171446d693
Split status: N/A (0)
[ccollins@ccollins-mac:~/repos/mynewt/core]$ newtmgr -c bhd-oic --name c5
image confirm
Images:
slot=0
version: 5.5.5.5
bootable: true
flags: active confirmed
hash: ec4044b698f06f9d3128b2b900c4da0d15a500b77f0378a2bad5f87b43c1bd42
slot=1
version: 0.0.0
bootable: true
flags:
hash: 59477eca25d3deb4edc0b1ef80f1f517f37b90d127ef33597d21ba171446d693
Split status: N/A (0)
[ccollins@ccollins-mac:~/repos/mynewt/core]$ newtmgr -c bhd-oic --name c5
image confirm ec4044b698f06f9d3128b2b900c4da0d15a500b77f0378a2bad5f87b43c1bd42
Images:
slot=0
version: 5.5.5.5
bootable: true
flags: active confirmed
hash: ec4044b698f06f9d3128b2b900c4da0d15a500b77f0378a2bad5f87b43c1bd42
slot=1
version: 0.0.0
bootable: true
flags:
hash: 59477eca25d3deb4edc0b1ef80f1f517f37b90d127ef33597d21ba171446d693
Split status: N/A (0)
Chris
