Error installing dkms in Raspberry Pi 4

[acdcjavier]

Hello I've followed all the steps for installing the latest drive into my Raspberry Pi 4, but I got thos error when I performed sudo ./dkms-install.sh

pi@raspberrypi:~/rtl8812au $ sudo ./dkms-install.sh
About to run dkms install steps...

Creating symlink /var/lib/dkms/rtl8812au/5.6.4.2/source ->
                 /usr/src/rtl8812au-5.6.4.2

DKMS: add completed.
Error! echo
Your kernel headers for kernel 4.19.86-v7l+ cannot be found at
/lib/modules/4.19.86-v7l+/build or /lib/modules/4.19.86-v7l+/source.
Error! echo
Your kernel headers for kernel 4.19.86-v7l+ cannot be found at
/lib/modules/4.19.86-v7l+/build or /lib/modules/4.19.86-v7l+/source.
Finished running dkms install steps.

Using make installation got this error:

`pi@raspberrypi:~/rtl8812au $ sudo make

make ARCH=arm CROSS_COMPILE= -C /lib/modules/4.19.86-v7l+/build M=/home/pi/rtl8812au modules make[1]: *** /lib/modules/4.19.86-v7l+/build: No existe el fichero o el directorio. Alto. make: *** [Makefile:2245: modules] Error 2 `

Any solution? thanks

[ZerBea]

Kernel headers are missing and you have to install them. Assuming you're running Raspian, read more here https://www.raspberrypi.org/documentation/linux/kernel/headers.md I suggest to install Arch: https://archlinuxarm.org/platforms/armv8/broadcom/raspberry-pi-4 and you will learn much about Linux

[acdcjavier]

Kernel headers are missing and you have to install them. Assuming you're running Raspian, read more here https://www.raspberrypi.org/documentation/linux/kernel/headers.md I suggest to install Arch: https://archlinuxarm.org/platforms/armv8/broadcom/raspberry-pi-4 and you will learn much about Linux

Thanks but headers already are installed

[ZerBea]

Do they match to the installed kernel? $ uname -r vs $ ls -la /lib/modules

or $ dpkg -s raspberrypi-kernel | grep Version vs $ dpkg -s raspberrypi-kernel-headers | grep Version

[acdcjavier]

Do they match to the installed kernel? $ uname -r vs $ ls -la /lib/modules

or $ dpkg -s raspberrypi-kernel | grep Version vs $ dpkg -s raspberrypi-kernel-headers | grep Version

The first one got it:

`root@javier:/home/pi# uname -r 4.19.86-v7l+ root@javier:/home/pi# ls -la /lib/modules total 40 drwxr-xr-x 10 root root 4096 dic 5 20:52 . drwxr-xr-x 18 root root 4096 dic 5 20:50 .. drwxr-xr-x 3 root root 4096 dic 6 11:45 4.19.75+ drwxr-xr-x 3 root root 4096 dic 6 11:45 4.19.75-v7+ drwxr-xr-x 3 root root 4096 dic 6 11:45 4.19.75-v7l+ drwxr-xr-x 3 root root 4096 dic 5 17:56 4.19.75-v8+ drwxr-xr-x 3 root root 4096 dic 5 20:52 4.19.86+ drwxr-xr-x 3 root root 4096 dic 5 20:53 4.19.86-v7+ drwxr-xr-x 3 root root 4096 dic 5 20:52 4.19.86-v7l+ drwxr-xr-x 3 root root 4096 dic 5 20:52 4.19.86-v8+ root@javier:/home/pi#

`

The second:

`root@javier:/home/pi# dpkg -s raspberrypi-kernel | grep Version

Version: 1.20190925+1-1

root@javier:/home/pi# dpkg -s raspberrypi-kernel-headers | grep Version Version: 1.20190925+1-1 root@javier:/home/pi# `

[ZerBea]

That's looking good. Now we have to check for the sub directories (build and/or source). Does one of them exists? $ ls -la /lib/modules/4.19.86-v7l+/

[acdcjavier]

ls -la /lib/modules/4.19.86-v7l+/

Hello

Yes, it exists

`pi@javier:~ $ ls -la /lib/modules/4.19.86-v7l+/

total 2140 drwxr-xr-x 3 root root 4096 dic 5 20:52 . drwxr-xr-x 10 root root 4096 dic 5 20:52 .. drwxr-xr-x 11 root root 4096 dic 5 20:52 kernel -rw-r--r-- 1 root root 543018 dic 5 20:52 modules.alias -rw-r--r-- 1 root root 561702 dic 5 20:52 modules.alias.bin -rw-r--r-- 1 root root 12111 dic 5 20:52 modules.builtin -rw-r--r-- 1 root root 13379 dic 5 20:52 modules.builtin.bin -rw-r--r-- 1 root root 185405 dic 5 20:52 modules.dep -rw-r--r-- 1 root root 256726 dic 5 20:52 modules.dep.bin -rw-r--r-- 1 root root 302 dic 5 20:52 modules.devname -rw-r--r-- 1 root root 62689 dic 5 20:52 modules.order -rw-r--r-- 1 root root 379 dic 5 20:52 modules.softdep -rw-r--r-- 1 root root 233253 dic 5 20:52 modules.symbols -rw-r--r-- 1 root root 286483 dic 5 20:52 modules.symbols.bin

pi@javier:~ $ `

[ZerBea]

Unfortunately neither "build" nor "source" exists in your tree. So dkms isn't able to build the driver. For example my tree: drwxr-xr-x 21 zerobeat users 500 8. Dez 19:05 build 1 zerobeat users 0 8. Dez 19:05 extramodules drwxr-xr-x 9 zerobeat users 180 2. Dez 18:49 kernel -rw-r--r-- 1 zerobeat users 638541 2. Dez 18:52 modules.alias -rw-r--r-- 1 zerobeat users 661826 2. Dez 18:52 modules.alias.bin -rw-r--r-- 1 zerobeat users 9376 30. Nov 19:55 modules.builtin -rw-r--r-- 1 zerobeat users 11541 2. Dez 18:52 modules.builtin.bin -rw-r--r-- 1 zerobeat users 276137 2. Dez 18:52 modules.dep -rw-r--r-- 1 zerobeat users 372137 2. Dez 18:52 modules.dep.bin -rw-r--r-- 1 zerobeat users 226 2. Dez 18:52 modules.devname -rw-r--r-- 1 zerobeat users 89309 30. Nov 19:55 modules.order -rw-r--r-- 1 zerobeat users 379 2. Dez 18:52 modules.softdep -rw-r--r-- 1 zerobeat users 247964 2. Dez 18:52 modules.symbols -rw-r--r-- 1 zerobeat users 303841 2. Dez 18:52 modules.symbols.bin

As you can see, the headers are present here: drwxr-xr-x 21 zerobeat users 500 8. Dez 19:05 build

[ZerBea]

looks that your installation is broken: https://github.com/raspberrypi/linux/issues/3279 https://github.com/respeaker/seeed-voicecard/issues/190

[ZerBea]

Take a look here: https://archlinuxarm.org/packages/armv7h/linux-raspberrypi4-headers Download the header package http://mirror.archlinuxarm.org/armv7h/core/linux-raspberrypi4-headers-4.19.86-1-armv7h.pkg.tar.xz Unpack and take a look inside the build tree. Now you can imagine what files you're missing: rwxr-xr-x 3 zerobeat users 4096 30. Nov 19:53 arch drwxr-xr-x 3 zerobeat users 4096 30. Nov 19:53 block drwxr-xr-x 2 zerobeat users 4096 30. Nov 19:53 certs -rw-r--r-- 1 zerobeat users 178453 30. Nov 19:53 .config drwxr-xr-x 4 zerobeat users 4096 30. Nov 19:53 crypto drwxr-xr-x 131 zerobeat users 4096 30. Nov 19:53 drivers drwxr-xr-x 63 zerobeat users 4096 30. Nov 19:53 fs drwxr-xr-x 29 zerobeat users 4096 30. Nov 19:53 include drwxr-xr-x 2 zerobeat users 4096 30. Nov 19:53 init -rw-r--r-- 1 zerobeat users 563 30. Nov 19:53 Kconfig drwxr-xr-x 10 zerobeat users 4096 30. Nov 19:53 kernel drwxr-xr-x 4 zerobeat users 4096 30. Nov 19:53 lib -rw-r--r-- 1 zerobeat users 60216 30. Nov 19:53 Makefile drwxr-xr-x 2 zerobeat users 4096 30. Nov 19:53 mm -rw-r--r-- 1 zerobeat users 933550 30. Nov 19:53 Module.symvers drwxr-xr-x 63 zerobeat users 4096 30. Nov 19:53 net drwxr-xr-x 2 zerobeat users 4096 30. Nov 19:53 samples drwxr-xr-x 14 zerobeat users 4096 30. Nov 19:53 scripts drwxr-xr-x 10 zerobeat users 4096 30. Nov 19:53 security drwxr-xr-x 25 zerobeat users 4096 30. Nov 19:53 sound drwxr-xr-x 2 zerobeat users 4096 30. Nov 19:53 .tmp_versions drwxr-xr-x 2 zerobeat users 4096 30. Nov 19:53 usr drwxr-xr-x 4 zerobeat users 4096 30. Nov 19:53 virt

[acdcjavier]

looks that your installation is broken: raspberrypi/linux#3279 respeaker/seeed-voicecard#190

I've perfomed a fresh Rasbian Installation but still got error:

pi@raspberrypi:~/rtl8812au $ sudo ./dkms-install.sh

About to run dkms install steps...

Creating symlink /var/lib/dkms/rtl8812au/5.6.4.2/source ->
                 /usr/src/rtl8812au-5.6.4.2

DKMS: add completed.

Kernel preparation unnecessary for this kernel.  Skipping...

Building module:
cleaning build area...
'make' -j4 KVER=4.19.75-v7l+ KSRC=/lib/modules/4.19.75-v7l+/build...(bad exit status: 2)
Error! Bad return status for module build on kernel: 4.19.75-v7l+ (armv7l)
Consult /var/lib/dkms/rtl8812au/5.6.4.2/build/make.log for more information.

Kernel preparation unnecessary for this kernel.  Skipping...

Building module:
cleaning build area...
'make' -j4 KVER=4.19.75-v7l+ KSRC=/lib/modules/4.19.75-v7l+/build....(bad exit status: 2)
Error! Bad return status for module build on kernel: 4.19.75-v7l+ (armv7l)
Consult /var/lib/dkms/rtl8812au/5.6.4.2/build/make.log for more information.
Finished running dkms install steps.

[ZerBea]

You're on a wrong kernel version: 4.19.75-v7l+ Actual kernel is 4.19.86-v7l+

Please attach /var/lib/dkms/rtl8812au/5.6.4.2/build/make.log to see what's going on there.

Or avoid complete dkms stuff. Compile driver and copy it to modules directory

[ZerBea]

dkms is a never ending story. If you not want to avoid it: https://raspberrypi.stackexchange.com/questions/93677/install-drivers-for-rtl8812au-for-raspibian-kernel-4-14-79-v7-or-4-14-79-87-v7 and/or https://github.com/aircrack-ng/rtl8812au/issues/408

[acdcjavier]

Finally i've installed the driver succesfull Thanks for your help

[ZerBea]

Good to hear that. This chipset isn't bad and the driver has big potential.

[acdcjavier]

Good to hear that. This chipset isn't bad and the driver has big potential.

Yes, I already know this chipset, because I use it on my PC using Ubuntu 19, and recenlty i've bought a raspberry

[ZerBea]

And the Raspberry is a nice system, too. I'm running several of them, Pi 1: A+, B+, Zero wh and Zero. https://github.com/ZerBea/hcxdumptool/wiki/Penetration-testing-system-2

[turbofiesta]

I have a similar problem. I try tried many solutions but failed Thanks for your help

System: Raspberry Pi 4 Kernel 4.19.81-Re4son-v8l+ Description: Kali GNU/Linux Rolling Release: 2019.4

sudo ./dkms-install.sh
About to run dkms install steps...

Creating symlink /var/lib/dkms/rtl8812au/5.6.4.2/source ->
                 /usr/src/rtl8812au-5.6.4.2

DKMS: add completed.
Error! echo
Your kernel headers for kernel 4.19.81-Re4son-v8l+ cannot be found at
/lib/modules/4.19.81-Re4son-v8l+/build or /lib/modules/4.19.81-Re4son-v8l+/source.
You can use the --kernelsourcedir option to tell DKMS where it's located.
Error! echo
Your kernel headers for kernel 4.19.81-Re4son-v8l+ cannot be found at
/lib/modules/4.19.81-Re4son-v8l+/build or /lib/modules/4.19.81-Re4son-v8l+/source.
You can use the --kernelsourcedir option to tell DKMS where it's located.
Finished running dkms install steps.

---

[cedricbambooza]

pls consider closing the issue, when it's solved by now :)

[mauricecyril]

I have the same issue.

[phpony]

All you need is to run apt-get dist-upgrade and then reboot to get both latest kernel running and latest kernel headers installed. If you just run apt install raspberrypi-kernel-headers - you'll get latest headers few versions ahead of running kernel and dkms will show that error.