Re: [gentoo-user] Kernel boot messages are no longer displayed

[Wang Xuerui]

2014-05-25 4:20 GMT+08:00 Hilco Wijbenga <hilco.wijbenga@×××××.com>:
> Hi all,
>
> Since kernel 3.12.13 (3.12.13-gentoo), the kernel boot messages have
> disappeared, i.e. they are no longer displayed at boot time. All I get
> is a line like "Loading kernel 3.12.13". (I just upgraded to
> 3.12.20-gentoo, so now it's something like "Loading kernel 3.12.20".)
>
> I have no idea why. I checked my grub config and it does not add a
> "quiet" argument. I see nothing in /etc/rc.conf about quiet (or
> verbose). And X86_VERBOSE_BOOTUP is set to 'y'. I also looked for
> "quiet", "boot", and "messages" (while running "make xconfig") and
> nothing untoward showed up.
>
> How do I get back to a normal and sane boot process?

Hi, I also experienced this change earlier this year, and it seems the
old behavior can be restored by setting loglevel=7 in kernel cmdline.
Actually, not printing that much message can lead to a small
performance gain, as some console drivers tend to not be very fast;
but you certainly can have the messages if you want.

Hope that helps~