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Getting Mali Graphics Debugger to run with Samsung S2

Bodo Pfeifer
Note: This was originally posted on 6th June 2013 at http://forums.arm.com

Hi,

we like to use the Mali Graphics Debugger with a Samsung S2.

There is a problem:

According to the readme we have to copy 2 files to the device.

* Pushing them to /sdcard/ works fine

but
* cp mgddaemon /system/bin/mgddaemon fails

Message: "cp: can't create '/system/bin/mgddaemon': Read-only file system

FYI: I am super user. Tried to chmod the directory but this gives me the same message.

Can anyone help me here?


Thanks in advance,
Bodo
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  • Arm Employee Badge
    Note: This was originally posted on 7th June 2013 at http://forums.arm.com

    Hi Bodo,

    it might be that the partition on which the "bin" directory resides is mounted read-only, in which case even root (superuser) can't write until it is remounted read-write.

    If you did something like

    adb shell

    to open a shell on the device, and then

    mount

    you can see what partitions are mounted. If there is one listed for "system" then you could try something like this (once you have become superuser):

    mount -o remount, rw /system

    If "system" isn't listed in the mounted partitions then you may need to remount the whole root filesystem read-write instead:

    mount -o remount, rw /

    HTH, Pete
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  • Arm Employee Badge
    Note: This was originally posted on 7th June 2013 at http://forums.arm.com

    Hi Bodo,

    it might be that the partition on which the "bin" directory resides is mounted read-only, in which case even root (superuser) can't write until it is remounted read-write.

    If you did something like

    adb shell

    to open a shell on the device, and then

    mount

    you can see what partitions are mounted. If there is one listed for "system" then you could try something like this (once you have become superuser):

    mount -o remount, rw /system

    If "system" isn't listed in the mounted partitions then you may need to remount the whole root filesystem read-write instead:

    mount -o remount, rw /

    HTH, Pete
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