missing /dev/rtc in genkernel of gentoo-sources-4.4.6

[hick518]

I ran the following:

 

emerge gentoo-sources

genkernel all

 

This resulted in a kernel which was missing /dev/rtc, which caused the following message on boot:

 * Setting system clock using the hardware clock [UTC] ...
hwclock: Cannot access the Hardware Clock via any known method.
hwclock: Use the --debug option to see the details of our search for an access method.
 * Failed to set the system clock                                                         
 [ !! ]

I corrected this by running:

 

genkernel --menuconfig all

 

and enabling Device Drivers / Real time Clock.

 

This got things working properly.

 

So, is this a bug?  Or just something I don't understand about genkernel?  I would have expected the hardware clock to work without my manual intervention.

 

[hick518]

Bug is resolved.

 

https://bugs.funtoo.org/browse/FL-3237

[cardinal]

Genkernel generic kernel-config compiles faster because it builds a fraction of the drivers debian-sources kernel-config does.

Fewer drivers increases the chance something may not be built that is needed for a laptop or newer hardware.

Genkernels kernel-config is adequate for older hardware like my 2008 desktop.

 

Genkernels x86_64 kernel-config:

/usr/share/genkernel/arch/x86_64/kernel-config

[hick518]

So my problem with the missing clock driver is not likely to occur on older hardware?

 

EDIT:  It looks like this may have been fixed at one time in the past:

 

https://bugs.funtoo.org/browse/FL-391?jql=text%20~%20%22rtc%22

[cardinal]

Diff your .config and genkernels kernel-config to list the additional configs your hardware required for rtc.
Go to bugs.funtoo.org
I would classify this as a story you want the developers to review.
Create Issue/Issue Type/Story
Report your experience including your hardware information and the additional configs it required for rtc.
 
The most recent forum post on rtc Sandro was using his own config.

Genkernels kernel-config has
CONFIG_RTC_DRV_CMOS=m builds rtc-cmos kernel module.

[Oleg Vinichenko]

genkernel including RTC and CMOS config in it's default config. You probably missed this in your gentoo-sources configuration? They does not include any configs afaik.

Not a bug, as long as you didn't use genkernel's config.

[hick518]

This is the first time I've ever used genkernel.  I did not supply my own config file, so I assume I used the default one.  You are talking about /usr/src/linux/.config, right?