RPi - dtoverlay

**awiouy** · May 18, 2016 at 5:00 PM Official Post

Hello,

On LE 7.0.0 on RPi2, I am trying to use the dtoverlay command to dynamically enable the onboard ALSA audio interface, but it fails:

Code

dtoverlay dtparam audio=on
sh: dtc: not found
* Failed to read active DTB

Am I doing something wrong, or is there something missing, e.g., dtc?

Incidentally, dtc is not in LE target, but is in LE build (e.g., in build.LibreELEC-RPi2.arm-8.0-devel/linux-4.6-rc7/scripts/dtc/dtc). What package puts it there? Could this package be modfified to copy dtc to target?

Thank you in advance for any help

V10lator · May 30, 2016 at 8:58 PM

With 7.0.1 it's even worse:

Code

LibreELEC:~ # dtoverlay dtparam audio=on
* Failed to find overlays directory

and indeed there's no such directory:

Code

LibreELEC:~ # ls /flash/
FSCK0000.REC         FSCK0017.REC         FSCK0034.REC         FSCK0051.REC         FSCK0068.REC
FSCK0001.REC         FSCK0018.REC         FSCK0035.REC         FSCK0052.REC         FSCK0069.REC
FSCK0002.REC         FSCK0019.REC         FSCK0036.REC         FSCK0053.REC         FSCK0070.REC
FSCK0003.REC         FSCK0020.REC         FSCK0037.REC         FSCK0054.REC         FSCK0071.REC
FSCK0004.REC         FSCK0021.REC         FSCK0038.REC         FSCK0055.REC         SYSTEM
FSCK0005.REC         FSCK0022.REC         FSCK0039.REC         FSCK0056.REC         SYSTEM.md5
FSCK0006.REC         FSCK0023.REC         FSCK0040.REC         FSCK0057.REC         bcm2709-rpi-2-b.dtb                                                                                                   
FSCK0007.REC         FSCK0024.REC         FSCK0041.REC         FSCK0058.REC         bcm2710-rpi-3-b.dtb                                                                                                   
FSCK0008.REC         FSCK0025.REC         FSCK0042.REC         FSCK0059.REC         bootcode.bin
FSCK0009.REC         FSCK0026.REC         FSCK0043.REC         FSCK0060.REC         cmdline.txt
FSCK0010.REC         FSCK0027.REC         FSCK0044.REC         FSCK0061.REC         config.txt
FSCK0011.REC         FSCK0028.REC         FSCK0045.REC         FSCK0062.REC         fixup.dat
FSCK0012.REC         FSCK0029.REC         FSCK0046.REC         FSCK0063.REC         kernel.img
FSCK0013.REC         FSCK0030.REC         FSCK0047.REC         FSCK0064.REC         kernel.img.md5
FSCK0014.REC         FSCK0031.REC         FSCK0048.REC         FSCK0065.REC         start.elf
FSCK0015.REC         FSCK0032.REC         FSCK0049.REC         FSCK0066.REC
FSCK0016.REC         FSCK0033.REC         FSCK0050.REC         FSCK0067.REC

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**lrusak** · May 30, 2016 at 9:01 PM Official Post

Quote from V10lator

With 7.0.1 it's even worse:

Code

LibreELEC:~ # dtoverlay dtparam audio=on
* Failed to find overlays directory

and indeed there's no such directory:

Code

LibreELEC:~ # ls /flash/
FSCK0000.REC         FSCK0017.REC         FSCK0034.REC         FSCK0051.REC         FSCK0068.REC
FSCK0001.REC         FSCK0018.REC         FSCK0035.REC         FSCK0052.REC         FSCK0069.REC
FSCK0002.REC         FSCK0019.REC         FSCK0036.REC         FSCK0053.REC         FSCK0070.REC
FSCK0003.REC         FSCK0020.REC         FSCK0037.REC         FSCK0054.REC         FSCK0071.REC
FSCK0004.REC         FSCK0021.REC         FSCK0038.REC         FSCK0055.REC         SYSTEM
FSCK0005.REC         FSCK0022.REC         FSCK0039.REC         FSCK0056.REC         SYSTEM.md5
FSCK0006.REC         FSCK0023.REC         FSCK0040.REC         FSCK0057.REC         bcm2709-rpi-2-b.dtb                                                                                                   
FSCK0007.REC         FSCK0024.REC         FSCK0041.REC         FSCK0058.REC         bcm2710-rpi-3-b.dtb                                                                                                   
FSCK0008.REC         FSCK0025.REC         FSCK0042.REC         FSCK0059.REC         bootcode.bin
FSCK0009.REC         FSCK0026.REC         FSCK0043.REC         FSCK0060.REC         cmdline.txt
FSCK0010.REC         FSCK0027.REC         FSCK0044.REC         FSCK0061.REC         config.txt
FSCK0011.REC         FSCK0028.REC         FSCK0045.REC         FSCK0062.REC         fixup.dat
FSCK0012.REC         FSCK0029.REC         FSCK0046.REC         FSCK0063.REC         kernel.img
FSCK0013.REC         FSCK0030.REC         FSCK0047.REC         FSCK0064.REC         kernel.img.md5
FSCK0014.REC         FSCK0031.REC         FSCK0048.REC         FSCK0065.REC         start.elf
FSCK0015.REC         FSCK0032.REC         FSCK0049.REC         FSCK0066.REC
FSCK0016.REC         FSCK0033.REC         FSCK0050.REC         FSCK0067.REC

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You have filesystem corruption.

V10lator · May 30, 2016 at 9:04 PM

Quote from lrusak

You have filesystem corruption.

Now this is a bad news as I just finished installing/configuring which took 12+ hours. Is there a way to fix that without doing everything from scratch?

//EDIT: I copied files from raspberrypi git and now everything seems to work. Is it save to remove the FSCK*.REC files now?

RPi - dtoverlay

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