[gentoo-user] SATA+GRUB not able to boot

[gentoo-user] SATA+GRUB not able to boot

[Muthu]

Hai,

         I am using gentoo 2.6.15 kernel and grub 0.96.
 
         I am using software RAID1 for 3 devices (2 IDE(hda,hdb)+1 
SATA(sda)).

         I am not able to boot through the SATA hardisk(ie. Just the 
plain cursor comes). When the grub loader loads initially, if I type the 
the command
grub>find /boot/grub/stage1
hd(0,0)
hd(1,0)

and it hangs, it is not detecting the SATA drive and not even coming out 
from the prompt.

         After the machine booted in the normal mode using IDE drive, I 
logged in as root and I tried
grub>find /boot/grub/stage1
hd(0,0)
hd(1,0)
hd(4,0)

          Now the grub is recognizing the SATA drive.

          Can somebody give me a suggestion why the SATA is not 
recognized while booting in the grub?

Thanks & Regards,
Muthu.


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Re: [gentoo-user] SATA+GRUB not able to boot

[John Jolet]

On Feb 27, 2006, at 9:27 AM, Muthu wrote:

> Hai,
>
>         I am using gentoo 2.6.15 kernel and grub 0.96.
>         I am using software RAID1 for 3 devices (2 IDE(hda,hdb)+1  
> SATA(sda)).
>
>         I am not able to boot through the SATA hardisk(ie. Just the  
> plain cursor comes). When the grub loader loads initially, if I  
> type the the command
> grub>find /boot/grub/stage1
> hd(0,0)
> hd(1,0)
>
> and it hangs, it is not detecting the SATA drive and not even  
> coming out from the prompt.
>
>         After the machine booted in the normal mode using IDE  
> drive, I logged in as root and I tried
> grub>find /boot/grub/stage1
> hd(0,0)
> hd(1,0)
> hd(4,0)
>
>          Now the grub is recognizing the SATA drive.
>
>          Can somebody give me a suggestion why the SATA is not  
> recognized while booting in the grub?
>
is your sata support compiled in as modules or into the kernel?
> Thanks & Regards,
> Muthu.
>
>
> -- 
> gentoo-user@gentoo.org mailing list
>

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Re: [gentoo-user] SATA+GRUB not able to boot

[Muthu]

>
> On Feb 27, 2006, at 9:27 AM, Muthu wrote:
>
>> Hai,
>>
>>         I am using gentoo 2.6.15 kernel and grub 0.96.
>>         I am using software RAID1 for 3 devices (2 IDE(hda,hdb)+1  
>> SATA(sda)).
>>
>>         I am not able to boot through the SATA hardisk(ie. Just the  
>> plain cursor comes). When the grub loader loads initially, if I  type 
>> the the command
>> grub>find /boot/grub/stage1
>> hd(0,0)
>> hd(1,0)
>>
>> and it hangs, it is not detecting the SATA drive and not even  coming 
>> out from the prompt.
>>
>>         After the machine booted in the normal mode using IDE  drive, 
>> I logged in as root and I tried
>> grub>find /boot/grub/stage1
>> hd(0,0)
>> hd(1,0)
>> hd(4,0)
>>
>>          Now the grub is recognizing the SATA drive.
>>
>>          Can somebody give me a suggestion why the SATA is not  
>> recognized while booting in the grub?
>>
> is your sata support compiled in as modules or into the kernel?

sata support is compiled in to the kernel. It is detecting as SCSI 
drive. I could access the disk.

>> Thanks & Regards,
>> Muthu.
>>
>>
>> -- 
>> gentoo-user@gentoo.org mailing list
>>
>

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Re: [gentoo-user] SATA+GRUB not able to boot

[Uwe Thiem]

On 27 February 2006 17:27, Muthu wrote:
> Hai,
>
>          I am using gentoo 2.6.15 kernel and grub 0.96.
>
>          I am using software RAID1 for 3 devices (2 IDE(hda,hdb)+1
> SATA(sda)).
>
>          I am not able to boot through the SATA hardisk(ie. Just the
> plain cursor comes). When the grub loader loads initially, if I type the
> the command
> grub>find /boot/grub/stage1
> hd(0,0)
> hd(1,0)
>
> and it hangs, it is not detecting the SATA drive and not even coming out
> from the prompt.
>
>          After the machine booted in the normal mode using IDE drive, I
> logged in as root and I tried
> grub>find /boot/grub/stage1
> hd(0,0)
> hd(1,0)
> hd(4,0)
>
>           Now the grub is recognizing the SATA drive.
>
>           Can somebody give me a suggestion why the SATA is not
> recognized while booting in the grub?

If you want to boot from a device your kernel has no built-in driver for use 
an initrd (for the nit-pickers: initramfs) generated by genkernel. ;-)

Uwe

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Re: [gentoo-user] SATA+GRUB not able to boot

[Javier Payno]

El Lunes, 27 de Febrero de 2006 16:52, Muthu escribió:
> > is your sata support compiled in as modules or into the kernel?
>
> sata support is compiled in to the kernel. It is detecting as SCSI
> drive. I could access the disk.

At the boot while rub is runing the kernel isn't loaded on the system, the 
kernel module and the support for grub are different.

Look for the supoort of your sata chipset on grub homepage or something like 
this, or you can try to boot the kernel from a /boot partition in a IDE disk 
and then mount the / from the SATA drive when the kernel give you support

Regards
-- 
Javier Payno

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Re: [gentoo-user] SATA+GRUB not able to boot

[Richard Fish]

On 2/27/06, Muthu <cmuthu@naturesoft.net> wrote:
>           Can somebody give me a suggestion why the SATA is not
> recognized while booting in the grub?

Grub uses BIOS calls to access disk drives.  Is this SATA disk on a
separate controller card?  If so, I suspect that card doesn't have a
bootable BIOS.

-Richard

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Re: [gentoo-user] SATA+GRUB not able to boot

[Richard Fish]

On 2/27/06, Uwe Thiem <uwix@iway.na> wrote:
> If you want to boot from a device your kernel has no built-in driver for use
> an initrd (for the nit-pickers: initramfs) generated by genkernel. ;-)

This won't help.  Grub uses BIOS calls to access the disk
drives...kerrnel drivers/initrd doesn't matter.

-Richard

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Re: [gentoo-user] SATA+GRUB not able to boot

[Richard Fish]

> Look for the supoort of your sata chipset on grub homepage or something like

Grub doesn't support SATA chipsets, IDE chipsets, SCSI chipsets, or
any other kind of chipset.  It supports PC BIOS interface calls to
find and read bootable disks.

-Richard

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[gentoo-user] Re: SATA+GRUB not able to boot

[Mick]

Javier Payno wrote:

> El Lunes, 27 de Febrero de 2006 16:52, Muthu escribió:
>> > is your sata support compiled in as modules or into the kernel?
>>
>> sata support is compiled in to the kernel. It is detecting as SCSI
>> drive. I could access the disk.
> 
> At the boot while rub is runing the kernel isn't loaded on the system, the
> kernel module and the support for grub are different.
> 
> Look for the supoort of your sata chipset on grub homepage or something
> like this, or you can try to boot the kernel from a /boot partition in a
> IDE disk and then mount the / from the SATA drive when the kernel give you
> support

Grub will boot hard drives (SATA inc.) as long as the BIOS maps them
correctly.  Is your SATA seen by the BIOS?  Check
your /boot/grub/device.map and include/correct the path for your SATA
drive.
-- 
Regards,
Mick

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Re: [gentoo-user] SATA+GRUB not able to boot

[Uwe Thiem]

On 27 February 2006 18:48, Richard Fish wrote:
> On 2/27/06, Uwe Thiem <uwix@iway.na> wrote:
> > If you want to boot from a device your kernel has no built-in driver for
> > use an initrd (for the nit-pickers: initramfs) generated by genkernel.
> > ;-)
>
> This won't help.  Grub uses BIOS calls to access the disk
> drives...kerrnel drivers/initrd doesn't matter.

Yup, realised that meanwhile.

Sorry for the wrong answer.

Uwe

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Re: [gentoo-user] SATA+GRUB not able to boot

[Hani Duwaik]

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On 2/27/06, Uwe Thiem <uwix@iway.na> wrote:
>
> On 27 February 2006 18:48, Richard Fish wrote:
> > On 2/27/06, Uwe Thiem <uwix@iway.na> wrote:
> > > If you want to boot from a device your kernel has no built-in driver
> for
> > > use an initrd (for the nit-pickers: initramfs) generated by genkernel.
> > > ;-)
> >
> > This won't help.  Grub uses BIOS calls to access the disk
> > drives...kerrnel drivers/initrd doesn't matter.


If the BIOS doesn't see the SATA drives (and therefore, grub can't see
them), and you don't have an IDE to use as a boot device, would it be
possible to create an initrd/initramfs on a floppy for booting purposes?

Just wondering...

-Hani




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