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In-Reply-To: <201108191109.34984.michaelkintzios@gmail.com>
Message-ID: <20cf30563e9305fe3504aadb7be7@google.com>
Date: Fri, 19 Aug 2011 13:12:25 +0000
Subject: Re: Re: [gentoo-user] /dev/sda* missing at boot
From: frares@gmail.com
To: gentoo-user@lists.gentoo.org
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Em 19/08/2011 07:09, Mick <michaelkintzios@gmail.com> escreveu:
> On Friday 19 Aug 2011 03:27:23 Mark Knecht wrote:
> > On Thu, Aug 18, 2011 at 11:59 AM, 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.
> > >
> > > What am I missing?
> > >
> > > Thanks a lot
> > > Francisco
> > >
> > > PS: my boot partition is sda2, sda3 is a swap partition, and
> everything
> > > else is in sda4. sda1 is not used (up to now) and this is my
> grub.conf :
> > >
> > > title Gentoo Linux 2.6.39-gentoo-r3
> > > root (hd0,1)
> > > kernel /boot/kernel-genkernel-x86_64-2.6.39-gentoo-r3 ro
> root=/dev/ram0
> > > init=/linuxrc real_root=/dev/sda4 vga=0x318 video=uvesafb:1024x768-32
> > > nodevfs udev devfs=nomount quiet CONSOLE=/dev/tty1
> > > initrd /boot/initramfs-genkernel-x86_64-2.6.39-gentoo-r3
> >
> > Maybe I'm missing the obvious here but have you taken a copy of
> > whatever config file was used/generated by genkernel and used that as
> > a jumping off point for building your own kernel. kernel's a kernel's
> > a kernel. What it is capable of doing is in the .config file. If
> > genkernel doesn't give you a .config file - I've never used genkernel
> > so I don't know what it does - then assuming you have the feature
> > turned on you can get the running config using zcat /proc/config.gz.
> > Save that to a new .config file, put it in the kernel source directory
> > and you should be good to go.
> >
> > You can also use zcat /proc/config.gz on the install CD kernel if yuo
> > boot from that. Save it to a disk and use it as the basis for creating
> > your own config.
> If you no longer use genkernel it is likely that you do not need an
> initram.
> Build chipset and fs modules into the kernel. Other drivers you can
> choose if
> you want to build as modules.
> --
> Regards,
> Mick
I the case I don't need a initram, I guess that the grub line for parameter
passing to the kernel would be empty. Am I wrong?
I was just looking on how to build my own initram. What is it supposed to
do anyway?
Thanks
Francisco
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Content-Type: text/html; charset=ISO-8859-1
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Em 19/08/2011 07:09, Mick <michaelkintzios@gmail.com> escreveu:<br />=
> On Friday 19 Aug 2011 03:27:23 Mark Knecht wrote:<br />> > On Th=
u, Aug 18, 2011 at 11:59 AM, =A0frares@gmail.com> wrote:<br />> > =
> Hi, guys<br />> > ><br />> > > It is a shame, I know=
, but after several years using Gentoo, it is the<br />> > > first=
time I try to build a kernel without "genkernel".<br />> >=
><br />> > > And now I can't boot to that new kernel, it d=
oes not find (and really do<br />> > > not have a) /dev/sda* root =
partition ("real-root"); during the boot it<br />> > > s=
tops, complaining about that, gives me the option to get a shell, from<br /=
>> > > which I am able to see that there is no /dev/sda* .<br />&g=
t; > ><br />> > > I have included everything SATA, so it loo=
ks like that is not a kernel<br />> > > problem, but a initramfs i=
ssue, I guess.<br />> > ><br />> > > What am I missing?<b=
r />> > ><br />> > > Thanks a lot<br />> > > Fra=
ncisco<br />> > ><br />> > > P.S.: my boot partition is s=
da2, sda3 is a swap partition, and everything<br />> > > else is i=
n sda4. sda1 is not used (up to now) and this is my grub.conf :<br />> &=
gt; ><br />> > > title Gentoo Linux 2.6.39-gentoo-r3<br />> =
> > root (hd0,1)<br />> > > kernel /boot/kernel-genkernel-x8=
6_64-2.6.39-gentoo-r3 ro root=3D/dev/ram0<br />> > > init=3D/linux=
rc real_root=3D/dev/sda4 vga=3D0x318 video=3Duvesafb:1024x768-32<br />> =
> > nodevfs udev devfs=3Dnomount quiet CONSOLE=3D/dev/tty1<br />> =
> > initrd /boot/initramfs-genkernel-x86_64-2.6.39-gentoo-r3<br />>=
; ><br />> > Maybe I'm missing the obvious here but have you t=
aken a copy of<br />> > whatever config file was used/generated by ge=
nkernel and used that as<br />> > a jumping off point for building yo=
ur own kernel. kernel's a kernel's<br />> > a kernel. What it=
is capable of doing is in the .config file. If<br />> > genkernel do=
esn't give you a .config file - I've never used genkernel<br />>=
> so I don't know what it does - then assuming you have the feature=
<br />> > turned on you can get the running config using zcat /proc/c=
onfig.gz.<br />> > Save that to a new .config file, put it in the ker=
nel source directory<br />> > and you should be good to go.<br />>=
><br />> > You can also use zcat /proc/config.gz on the install C=
D kernel if yuo<br />> > boot from that. Save it to a disk and use it=
as the basis for creating<br />> > your own config.<br />> <br />=
> If you no longer use genkernel it is likely that you do not need an in=
itram.<br />> Build chipset and fs modules into the kernel. =A0Other dri=
vers you can choose if<br />> you want to build as modules.<br />> <b=
r />> --<br />> Regards,<br />> Mick<br />> <br /><br />I the c=
ase I don't need a initram, I guess that the grub line for parameter pa=
ssing to the kernel would be empty. Am I wrong?<br /><br />I was just look=
ing on how to build my own initram. What is it supposed to do anyway?<br />=
<br />Thanks<br />Francisco
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