dkms build error: 10

[vernazza]

Hi, I have a Raspberry 2B with Raspian 12.
My wifi adapter is TP-Link AC600 wireless Realtek RTL8811AU [Archer T2U Nano]
And I'm getting error while compiling.
This is the data:

$ sudo ./install-driver.sh
: ---------------------------
: install-driver.sh v20240314
: armv7l (kernel architecture)
: arm (architecture to send to gcc)
: 2/4 (in-use/total processing units)
: 943040 (total system memory)
: 6.6.35-v7+ (kernel version)
: gcc (version of gcc used to compile the kernel)
: gcc (Raspbian 12.2.0-14+rpi1) 12.2.0
: dkms-3.0.10
: mokutil not installed (Secure Boot status unknown)
: ---------------------------

Checking for previously installed drivers...
Finished checking for and removing previously installed drivers.
: ---------------------------

Starting installation.
Installing 8821au.conf to /etc/modprobe.d
The dkms installation routines are in use.
Copying source files to /usr/src/rtl8821au-5.12.5.2
Creating symlink /var/lib/dkms/rtl8821au/5.12.5.2/source -> /usr/src/rtl8821au-5.12.5.2
The driver was added to dkms successfully.
: ---------------------------

Sign command: /lib/modules/6.6.35-v7+/build/scripts/sign-file
Binary /lib/modules/6.6.35-v7+/build/scripts/sign-file not found, modules won't be signed

Building module:
Cleaning build area...
kernelver=6.6.35-v7+ ./dkms-make.sh......(bad exit status: 2)
Error! Bad return status for module build on kernel: 6.6.35-v7+ (armv7l)
Consult /var/lib/dkms/rtl8821au/5.12.5.2/build/make.log for more information.
An error occurred. dkms build error: 10
Please report this error.
Please copy all screen output and paste it into the problem report.
Run the following before reattempting installation.
$ sudo ./remove-driver.sh

$ gcc --version
gcc (Raspbian 12.2.0-14+rpi1) 12.2.0
Copyright (C) 2022 Free Software Foundation, Inc.
This is free software; see the source for copying conditions. There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.

$ sudo uname -mr; mokutil --sb-state; lsusb; rfkill list all; dkms status; iw dev; iw reg get6.6.35-v7+ armv7l
EFI variables are not supported on this system
Bus 001 Device 004: ID 2357:011e TP-Link AC600 wireless Realtek RTL8811AU [Archer T2U Nano]
Bus 001 Device 003: ID 0424:ec00 Microchip Technology, Inc. (formerly SMSC) SMSC9512/9514 Fast Ethernet Adapter
Bus 001 Device 002: ID 0424:9514 Microchip Technology, Inc. (formerly SMSC) SMC9514 Hub
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
rtl8821au/5.12.5.2: added
global
country IT: DFS-ETSI
(2400 - 2483 @ 40), (N/A, 20), (N/A)
(5150 - 5250 @ 80), (N/A, 23), (N/A), NO-OUTDOOR, AUTO-BW
(5250 - 5350 @ 80), (N/A, 20), (0 ms), NO-OUTDOOR, DFS, AUTO-BW
(5470 - 5725 @ 160), (N/A, 26), (0 ms), DFS
(5725 - 5875 @ 80), (N/A, 13), (N/A)
(5945 - 6425 @ 160), (N/A, 23), (N/A), NO-OUTDOOR
(57000 - 66000 @ 2160), (N/A, 40), (N/A)

[morrownr]

Hi @vernazza

The problem is not obvious. Let's try some things. First, let's clean out anything from the installation script:

$ sudo sh remove-driver.sh

Then let's do a manual installation to see what we can see:

$ make clean
$ make
$ sudo make install
$ sudo reboot

If make blows up, paste what you see on the screen.