How to authorize adb service from boot

[Jose Vidal]

Hi everyone,

I need to porting userdata.img

I have a freescale connected to ubuntu host via serial port using minicom.

>From my host, when I put

$ adb shell

I get like response:

error: device unauthorized. Please check the confirmation dialog on your device.

I need to access adb service for porting userdata.

Can I to activate adb from init, boot or somewhere?



I hope for your help

Thanks in advance.


Best regards,

jvidalsm

[Dave Hylands]

Hi Jose,

I think that you probably need to disable adb secure mode.

I think that you need to set ro.adb.secure=0 in the properties file which is used when the phone boots into recovery mode.

I'm not sure how you actually go about doing this, but I suspect its part of the initramfs image of the recovery kernel.

I haven't messed with this - I just took a look at the the adb source code (in system/core/adb).

Alternatively, you could modify the source so that the daemon never starts up in secure mode. Search for ro.adb.secure in the directory above.

Dave Hylands

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[Jose Vidal]

Hi Dave,

Thanks for your response,

I have a default.prop file inside the initramfs.cpio.gz file of boot.img:

========= initramfs.cpio.gz =============

#

# ADDITIONAL_DEFAULT_PROPERTIES

#

ro.secure=0

ro.allow.mock.location=1

ro.debuggable=1

persist.sys.usb.config=mtp,adb

====================================

Mainly, I need to porting userdata,img and I can not make that because I can not to access via adb.

What do you think ?

How  I can porting userdata.img image?

Thanks in advance

Best regards,

jvidalsm

[Dave Hylands]

Hi Jose,

That looks reasonable. I'm not sure why adb wouldn't be running.

Does your /init.rc have commands to start it?

[Jose Vidal]

Hi Dave,

Do you have reason.

I changed in init.rc file

#  Enable adb security for JB4.2.2

    setprop ro.adb.secure 0

by

#  Enable adb security for JB4.2.2

    setprop ro.adb.secure 1

Now, I can to access from adb

$ adb shell

Thanks so much.

Best regards,

jvidalsm

[Dave Hylands]

Hi Jose,

----- Original Message -----
> From: "Jose Vidal" <jvid...@gmail.com>
> To: "Dave Hylands" <dhyl...@mozilla.com>
> Cc: mozilla...@lists.mozilla.org
> Sent: Monday, March 31, 2014 4:10:32 PM
> Subject: Re: [b2g] How to authorize adb service from boot
>
> Hi Dave,
>

> Do you have reason.

Seems totally counterintuitive to me.

You'd probably need to debug adbd (or add a bunch of prints/log statments) to figure out what its really doing.

> I changed in init.rc file
>
> # Enable adb security for JB4.2.2
> setprop ro.adb.secure 0
>
> by
>
> # Enable adb security for JB4.2.2
> setprop ro.adb.secure 1
>
> Now, I can to access from adb
>
> $ adb shell

This looks like a shell user shell. What you really want is a root user shell (which will have a # prompt).

There may be rules in the init.rc (or other .rc files) which are starting adb when ro.adb.secure is set to 1?

Dave Hylands

[Jose Vidal]

Hi Dave,

Sorry... 

Really I changed the init.rc file like:

#  Enable adb security for JB4.2.2
     setprop ro.adb.secure 1

 by

 #  Enable adb security for JB4.2.2

     setprop ro.adb.secure 0

(I copied it very fast :D )

Best regards.

jvidalsm

[Shawn Huang]

I have seen similar problem. The authentication dialog never shows up, even if I revoke adb authentication. My workaround is to delete .android folder under your home directory on your linux desktop (I suggest you backup it first), i guess this is probably related to $HOME/.android/adbkey.pub. Since the RSA public key was copied into /data/misc/adb/adb_keys on target device.

Another way is to change init.rc and make secure=0 as Dave mentioned, however, init.rc is part of ramdisk.img and boot.img=kernel+ramdisk.img. I guess you might not flash boot.img after you modified your init.rc.

[Jose Vidal]

Hi Shawn,

I modified init.rc, built a new boot.img y I flashed without problem.
I modified init.rc temporally only to copy Gaia using adb. I don't know if will permanently.

Best regards.

jvidalsm