Re: [gentoo-user] genkernel all

[Jack Morgan]

Thelma,

On 11/25/20 9:11 AM, thelma@×××××××××××.com wrote:
> On 11/25/2020 08:27 AM, thelma@×××××××××××.com wrote:
>> On 11/25/2020 08:23 AM, thelma@×××××××××××.com wrote:
>>> I compiled "genkernel all" instead of looking for the correct entry to
>>> boot my M.2 drive.
>>>
>>> Not I compiled nvidia-drivers and got a message:
>>>
>>> * Messages for package x11-drivers/nvidia-drivers-455.28-r1:
>>>
>>>   *   CONFIG_I2C_NVIDIA_GPU:	 should not be set. But it is.
>>>   * Please check to make sure these options are set correctly.
>>>   * Failure to do so may cause unexpected problems.
>>>   *   CONFIG_I2C_NVIDIA_GPU:	 should not be set. But it is.
>>>
>>> Genkernel all doesn't have any .config file.
>>> How to remove them?  Where to get .config for genkernel all?
>>>
>> found it in /etc/genkernel.conf
> That was not it. I copied genkernel.conf to /usr/src/linux/.config but
> this configuration file is different.
> I was looking for CONFIG_I2C_NVIDIA_GPU in genkernel.conf I couldn't
> find it.
genkernel.conf is a configuration file  for genkernel not your kernel 
configuration. Your mixing two separate things.  You can edit 
/etc/genkernel.conf and change SAVE_CONFIG="yes" to save your kernel 
configuration files which is what I do. I same my kernel configuration 
files in /etc/kernels/ and use the following script...

$ cat /root/bin/genkernel.sh

#!/bin/bash -x

## build kernel with genkernel
genkernel --kernel-config=/etc/kernels/kernel-config-x86_64-$(uname -r) all

## update grub.cfg file
grub-mkconfig -o /boot/grub/grub.cfg


I also have OLDCONFIG="no" and MENUCONFIG="yes" in /etc/genkernel.conf. 
Once you invest 20 minutes editing your kernel config, you don't want to 
have to do it again so saving a working kernel config is a good strategy.


You will find CONFIG_I2C_NVIDIA_GPU as a kernel config option (make 
menuconfig for example).
> The reason I'm using "genkernel all" as there is some setting missing in
> my old .config file that is stop booting my M.2 SSD (are there any
> special option in kernel for it?). I'm getting an error:
> kernel panic - not syncing: VFS: unable to mount root fs on
> unknown-block (0, 0)
This means you are missing a kernel configuration option (most likely 
the one for your disk controller). The fact that its an SSD is not 
useful.. what the SSD is connected to is . Use lspci to find out what 
hardware you have in your system.