Re: Re: Re: [gentoo-user] /dev/sda* missing at boot

[frares@gmail.com]

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Em 18/08/2011 16:17, frares@gmail.com escreveu:
> Em 18/08/2011 16:13, Michael Mol mikemol@gmail.com> escreveu:
> > On Thu, Aug 18, 2011 at 2:59 PM, frares@gmail.com> wrote:
> > >
> > > Hi, guys
> > >
> > > It is a shame, I know, but after several years using Gentoo, it is  
> the first time I try to build a kernel without "genkernel".
> > >
> > > And now I can't boot to that new kernel, it does not find (and really  
> do not have a) /dev/sda* root partition ("real-root"); during the boot it  
> stops, complaining about that, gives me the option to get a shell, from  
> which I am able to see that there is no /dev/sda* .
> > >
> > > I have included everything SATA, so it looks like that is not a  
> kernel problem, but a initramfs issue, I guess.
> >
> > If you've got a SATA controller, no frills, then all you *really* need
> > is AHCI. Build that into your kernel if you're worried about having
> > the right modules in initramfs. You can break it out into a module
> > later if you like. Opinions differ as to how much stuff should be
> > broken into modules vs being built-in to the kernel. I tend to build
> > in everything absolutely needed for boot, myself. Some people build in
> > just about everything, and some people build in almost nothing.
> > There's no "right" way for every use case.
> >
> > Also, check your BIOS to see if it's running your SATA controller in
> > some kind of IDE emulation mode. If it is, disable that. (Some
> > motherboards let you choose between "IDE" and "RAID", where "RAID" is
> > AHCI mode. Others call IDE mode 'legacy', and still others might
> > actually call the AHCI mode 'AHCI')
> >
> > Motherboards running SATA controllers in IDE emulation mode is an
> > incredibly common thing:
> >
> > 17:18 beh
> > 17:18 hda1 turned into sda1
> > 17:19 IRule: Turn SCSI-generic support, or did you
> > switch from legacy to AHCI in your BIOS?
> > 17:20 shortcircuit: quiet, you
> >
> > --
> >
> > :wq
> >

> Thanks, gonna try it.

> Francisco

Forgot to say: I am able to boot the LiveCD and chroot to that partition.

Now checking the kernel configuration, there's only SATA_ACARD_AHCI set up  
as a module, everything else AHCI is included in the kernel.

Thanks anyway

Francisco

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