[Letux-kernel] depmod for replicant modules

H. Nikolaus Schaller hns at goldelico.com
Wed Jul 3 16:09:03 CEST 2019


Hi Josua,

> Am 03.07.2019 um 16:01 schrieb Josua Mayer <josua.mayer at jm0.eu>:
> 
> Hi Andreas,
> 
> Am 29.06.19 um 18:40 schrieb Andreas Kemnade:
>> On Sat, 29 Jun 2019 18:15:02 +0200
>> "H. Nikolaus Schaller" <hns at goldelico.com> wrote:
>> 
>>>> Am 29.06.2019 um 17:29 schrieb Andreas Kemnade <andreas at kemnade.info>:
>>>> 
>>>> Hi,
>>>> 
>>>> I found some dirty way to create a modules.dep file in finished
>>>> replicant images.
>>>> On a system with depmod available.
>>>> - create a directory /some_tmp_dir/lib/modules/
>>>> ln -s /path/to/replicant/system/lib/modules /some_tmp_dir/lib_modules/4.17
>>>> depmod -b /some_tmp_dir 4.17  
>>> 
>>> yes, that is the principle described by
>>> 
>>> https://android.googlesource.com/device/asus/fugu/+/b01b7fd/AndroidKernel.mk#102
>>> 
>>> I had tried it but maybe got the symlink wrong.
>>> 
>>> What I don't get with these paths is what is constant file names and what is system-dependent.
>>> For example why do you use /some_tmp_dir/lib_modules/4.17 and not /some_tmp_dir/lib/modules/4.17
>>> 
>>> Could you please rewrite as something like
>>> 
>>> KERNEL_MODULES_FROM_BUILD=...
>>> TEMP_DIR=/tmp/build-$$
>>> ln -s $KERNEL_MODULES_FROM_BUILD ... 
>>> depmod -b ...
>>> 
>>> etc.
>>> 
>>>> 
>>>> modprobe then works. But now we a using a lot of insmod in load_modules.sh,
>>>> so it is not so important  
>>> 
>>> Indeed. As long as the load_modules.sh is complete and loads all what is needed.
>>> 
>> oh, we have some modprobe there...
>> 
>> There is a patch for depmod at
>> 
>> http://lists.goldelico.com/pipermail/gta04-owner/2017-December/007547.html
> Glad you found the patch! I remember pulling a lot of hair over it :(
> The commit description however says all there is to know about insmod
> being the outdated way.

I have a new kernel version that builds a modules.dep.bb which is compatible to the special BusyBox format used by Replicant 4.2.

See:

http://git.goldelico.com/?p=letux-kernel.git;a=commitdiff;h=9d648ca900fa364591cf08946021384f884e570f

BR,
Nikolaus



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