828063 - B2G emulator doesn't sem to have a properly formatted SDCard

Status: RESOLVED FIXED

(Firefox OS Graveyard :: GonkIntegration, defect)

Description

[Dave Hylands [:dhylands]]

Attachment: adb logcat

I built an emulator image with Marionette support enabled (so I could run xpcshell tests).

I noticed that when I did run-emulator.sh that the sdcard volume doesn't get mounted properly.

STR:
- ./run-emulator.sh

Epected:
- sdcard will transition to the Mounted State.

Observed:
- AutoMounter tries to mount sdcard 3 times, and it fails each time.

This will make it hard to test some of the updater changes that we're trying to get running.

Also, I observed:

00:18:39.924  43/84                AutoMounter  E   Unable to open file '/sys/devices/virtual/usb_composite/usb_mass_storage/enable' for reading
00:18:39.924  43/84                AutoMounter  E   Unable to open file '/sys/devices/virtual/switch/usb_configuration/state' for reading


These errors are expeced as the emulator has no USB support.

Comment 1

[Dave Hylands [:dhylands]]

Attachment: Create an empty sdcard when running the emulator

You can use a more persistent sdcard image and/or size by overriding the SDCARD_IMG or SDCARD_SIZE environment variables before running run-emulator.sh

Comment 2

[Dave Hylands [:dhylands]]

Attachment: Create an empty sdcard when running the emulator. v2

Realized I was using a linux specific path to get to mksdcard. Updated to use the calculated tool path instead.

Comment 3

[Michael Wu [:mwu]]

Comment on attachment 712694 [details] [diff] [review]
Create an empty sdcard when running the emulator. v2

Looks good!

(I was making a comment about TOOLS_PATH as you posted a new patch..)

Comment 4

[Dave Hylands [:dhylands]]

https://github.com/mozilla-b2g/B2G/commit/ed9ebcc0aade985dd8ff3e3e0a28f5c28c18aa8c

Comment 5

[Dave Hylands [:dhylands]]

Added dev-doc-needed since the ability to provide a the SDCARD image location and size can be overridden (and should be documented whereever it is that we talk about the emulator).

The first way is to override in the environment:

export SDCARD_SIZE=1024M
export SDCARD_IMG=${HOME}/mysdcard.img
./run-emulator.sh

or on the command line to run-emulator.sh

SDCARD_SIZE=1024M SDCARD_IMG=${HOME}/mysdcard.img ./run-emulator.sh