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Build kernel module

asked 2019-04-06 21:41:05 +0300

tourdetour gravatar image

updated 2019-04-06 21:42:10 +0300

Hello, I'm trying to build the r8152 module on Sailfish OS version 2.0.2.8 kernel 4.4.172 on Xperia XA2, to use my usb C to ethernet adapter on Sailfish.

I tried to install make, and to then build the module on the device with those instructions : https://www.pcsuggest.com/install-rtl8153-driver-linux/

However, I have the following errors when I run #make -j2 :

find: /lib/modules/4.4.172/kernel/drivers/net/usb: No such file or directory
make -C /lib/modules/4.4.172/build SUBDIRS=/home/nemo/Documents/Ethernet/realtek-r8152-linux-2.11 modules
make: *** /lib/modules/4.4.172/build: No such file or directory.  Stop. 
make: *** [modules] Error 2

Creating the directory /lib/modules/4.4.172/build leads to the following error:

make[1]: Entering directory `/lib/modules/4.4.172/build'
make[1]: *** No rule to make target `modules'.  Stop.
make[1]: Leaving directory `/lib/modules/4.4.172/build'
make: *** [modules] Error 2

Also, #lsmod returns no modules loaded, which is weird because some modules are needed for the OS to function right?

How do I proceed to build a kernel module in Sailfish OS?

Btw, I got the module from here : https://github.com/wget/realtek-r8152-linux/archive/v2.11.tar.gz

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answered 2019-04-06 22:52:18 +0300

tortoisedoc gravatar image

you need the right kernel headers. you can find the kernel from sonys aosp website iirc. godspeed

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Thanks for the answer. I didn't find the kernel headers on sony's aosp website.There is something called Open source Archive but I don't really know what to do with it and there doesn't seem to be anything even remotely related to kernel headers in it.

However there is a package called kernel-headers available through pkcon so I installed it, but the module still fails to compile with the same error.

tourdetour ( 2019-04-06 23:17:50 +0300 )edit

You need the arch-specific headers. And these you can only get from Sony

tortoisedoc ( 2019-04-07 08:05:02 +0300 )edit

Also, Iam not sure if kernel is compiled with loadable module supported. You will probably need to build all SFOS yourself , or at least new kernel which supports loadable modules.

Nieldk ( 2019-04-07 08:35:13 +0300 )edit

@tortoisedoc That makes sense. So I should try to download the headers on sony's website and just put them in the common place for linux-headers?

@Nieldk Maybe, it would explain why lsmod doesn't show anything. I didn't know you could even compile Linux without loadable module support. I don't really know how to replace the kernel once compiled, on a typical linux distro I would just replace vmlinuz in /boot and run mkinitcpio...

tourdetour ( 2019-04-07 16:41:29 +0300 )edit

theres plenty of guides out there gooooogle it

tortoisedoc ( 2019-04-09 00:07:35 +0300 )edit
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Asked: 2019-04-06 21:41:05 +0300

Seen: 195 times

Last updated: Apr 06