Pointers to troubleshoot freeze during rpi3 upload task?

[samuelventura]

Pointers to troubleshoot freeze during rpi3 upload task?

[samuelventura]

From time to time I also get write verification errors. This below happened at around 35%. Using the generated scrript makes no difference. SD card is totally new.

samuel@build:~/src/athasha/terminal$ MIX_TARGET=rpi3 mix upload athasha-ee0c
==> nerves
==> athasha_terminal

Nerves environment
  MIX_TARGET:   rpi3
  MIX_ENV:      dev

Path: /home/samuel/src/athasha/terminal/_build/rpi3_dev/nerves/images/athasha_terminal.fw
UUID: 88d57e66-f46d-5280-bdf9-7b1ecf8d25c3


Uploading to athasha-ee0c...

fwup: Upgrading partition B
fwup: write verification failed at offset 26476544
** (Mix) Unexpected exit from ssh (:epipe)

This is known to happen when ssh interactively prompts you for a
passphrase. The following are workarounds:

1. Load your private key identity into the ssh agent by running
   `ssh-add`

2. Use the `upload.sh` script. Create one by running
   `mix firmware.gen.script`.

And a success after that:

samuel@build:~/src/athasha/terminal$ MIX_TARGET=rpi3 mix upload athasha-ee0c
==> nerves
==> athasha_terminal

Nerves environment
  MIX_TARGET:   rpi3
  MIX_ENV:      dev

Path: /home/samuel/src/athasha/terminal/_build/rpi3_dev/nerves/images/athasha_terminal.fw
UUID: 88d57e66-f46d-5280-bdf9-7b1ecf8d25c3


Uploading to athasha-ee0c...

fwup: Upgrading partition B
100% [====================================] 24.73 MB in / 26.76 MB out       
Success!
Elapsed time: 5.733 s

[fhunleth]

@samuelventura I've only seen this happen with bad MicroSD cards and with MicroSD card sockets that have really been used a lot. There is one brand that had many failures reported a year ago and that was Kootion. We never figured out why. I haven't heard issues with the major brands. I primarily use Kingston and Sandisk. What brand are you using?

[samuelventura]

I am using ADATA and SanDisk mainly. I manually uploaded the fw file and ran fwup from nerves shell with same results. This is definitely hw related. I'm closing. Thank you.

Extra observations:

• Each attempt gets a little farther
• scp failed to transfer the fw file but successfully transferred a small text file
• sftp successfully transferred the fw file

iex(5)> cmd "fwup -aU -i /tmp/athasha_terminal.fw -d /dev/mmcblk0 -t upgrade"
fwup: Upgrading partition B
 51% [==================                  ] 11.68 MB in / 13.67 MB out143    
iex(6)> cmd "fwup -aU -i /tmp/athasha_terminal.fw -d /dev/mmcblk0 -t upgrade"
fwup: Upgrading partition B
 61% [=====================               ] 14.34 MB in / 16.33 MB out143    
iex(7)> cmd "fwup -aU -i /tmp/athasha_terminal.fw -d /dev/mmcblk0 -t upgrade"
fwup: Upgrading partition B
 65% [=======================             ] 15.42 MB in / 17.41 MB out143    
iex(8)> cmd "fwup -aU -i /tmp/athasha_terminal.fw -d /dev/mmcblk0 -t upgrade"
fwup: Upgrading partition B
100% [====================================] 24.73 MB in / 26.77 MB out       
Success!
Elapsed time: 5.665 s