[gentoo-user] Problem install Gentoo on New Laptop

[gentoo-user] Problem install Gentoo on New Laptop

[Colleen Beamer]

Hi all,

First, I did a google search to see if I could find out anything that
might help.  My patience wanes after a number of searches so, you'll
have to pardon me 'cause I'm looking for a quick answer if anyone knows one.

I just got a brand new Dell Inspiron XPS laptop.  It came with Windows
Vista and I never set it up - I did get to the initial screen for
setting it up, but that was because I wasn't quick enough on the draw
hitting F2 to get into setup.

Anyway, I followed the Gentoo Handbook, like I've done numerous times.
On booting the live CD, my hard drive is recognized - it's a SATA drive.

Following all the steps in the Handbook, I got no error messages.  When
I get to the part where I install the bootloader, it installs okay.  I
have 4 partitions sda1 is boot, sda2 is swap sda3 is / and sda4 is home.
 My /boot/grub/device.map file shows as: (hd0) /dev/sda.  When I boot to
the hard drive, the boot process gets to the point where it says:
Determining root device ...

Then it says:
/dev/sda3 is not a valid root device

I probably did something wrong, but I've started from scratch 3 times
and I get the same problem.  I've used genkernel and it looks like sata
support has been built in.

Any guidance would be appreciated.

Regards,

Colleen
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Re: [gentoo-user] Problem install Gentoo on New Laptop

[Mark Kirkwood]

Colleen Beamer wrote:

> Following all the steps in the Handbook, I got no error messages.  When
> I get to the part where I install the bootloader, it installs okay.  I
> have 4 partitions sda1 is boot, sda2 is swap sda3 is / and sda4 is home.
>  My /boot/grub/device.map file shows as: (hd0) /dev/sda.  When I boot to
> the hard drive, the boot process gets to the point where it says:
> Determining root device ...
> 
> Then it says:
> /dev/sda3 is not a valid root device
> 

Maybe post your grub.conf so we can see if there is a gotcha there 
somewhere, but I'd guess that your kernel has not got support for your 
SATA chipset. What does 'lscpi' or 'scanpci' say from the livecd?

Cheers

Mark
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Re: [gentoo-user] Problem install Gentoo on New Laptop

[Dirk Heinrichs]

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Am Montag, 30. April 2007 schrieb ext Colleen Beamer:

> I have 4 partitions sda1 is boot, sda2 is swap sda3 is / and sda4 is home.
> My /boot/grub/device.map file shows as: (hd0) /dev/sda.  When I boot to
> the hard drive, the boot process gets to the point where it says:
> Determining root device ...
>
> Then it says:
> /dev/sda3 is not a valid root device

Sata support may not be enough. Since all the SATA stuff has been put into 
the SCSI subsystem, you would need support for SCSI disks (and maybe CDRoms 
as well):

CONFIG_SCSI=y
CONFIG_BLK_DEV_SD=y
CONFIG_BLK_DEV_SR=m

HTH...

	Dirk
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Re: [gentoo-user] Problem install Gentoo on New Laptop

[Graham Murray]

Dirk Heinrichs <dirk.heinrichs.ext@nsn.com> writes:

> Sata support may not be enough. Since all the SATA stuff has been put into 
> the SCSI subsystem, you would need support for SCSI disks (and maybe CDRoms 
> as well):

In the latest kernels, SATA is no longer in the SCSI subsystem but has
been 'split' into its own libata subsystem.
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Re: [gentoo-user] Problem install Gentoo on New Laptop

[Dirk Heinrichs]

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Am Montag, 30. April 2007 schrieb ext Graham Murray:
> Dirk Heinrichs <dirk.heinrichs.ext@nsn.com> writes:
> > Sata support may not be enough. Since all the SATA stuff has been put
> > into the SCSI subsystem, you would need support for SCSI disks (and
> > maybe CDRoms as well):
>
> In the latest kernels, SATA is no longer in the SCSI subsystem but has
> been 'split' into its own libata subsystem.

I just booted 2.6.21.1 (the latest AFAIK) from my /dev/sda, which is a SATA 
drive. If it is sda*, it is the SCSI subsystem, otherwise it would be hda*.

% dmesg|grep sda
SCSI device sda: 156250000 512-byte hdwr sectors (80000 MB)
sda: Write Protect is off
sda: Mode Sense: 00 3a 00 00
SCSI device sda: write cache: enabled, read cache: enabled, doesn't support 
DPO or FUA
SCSI device sda: 156250000 512-byte hdwr sectors (80000 MB)
sda: Write Protect is off
sda: Mode Sense: 00 3a 00 00
SCSI device sda: write cache: enabled, read cache: enabled, doesn't support 
DPO or FUA
 sda: sda1 sda2 sda3
sd 2:0:0:0: Attached scsi disk sda

So once again: if it is SATA, you need (in addition to the driver for your 
SATA chip):

CONFIG_SCSI=y
CONFIG_BLK_DEV_SD=y

and, eventually

CONFIG_BLK_DEV_SR=m

And btw, even PATA is in the SCSI subsystem nowadays (my system has SATA hd, 
but PATA cdrom, attached to an Intel ICH6 chipset):

% dmesg|grep -i scsi
SCSI subsystem initialized
scsi0 : ata_piix
scsi1 : ata_piix
scsi 0:0:0:0: CD-ROM            HL-DT-ST RW/DVD GCC-4481B E106 PQ: 0 ANSI: 5
scsi2 : ata_piix
scsi3 : ata_piix
scsi 2:0:0:0: Direct-Access     ATA      WDC WD800JD-75JN 06.0 PQ: 0 ANSI: 5
SCSI device sda: 156250000 512-byte hdwr sectors (80000 MB)
SCSI device sda: write cache: enabled, read cache: enabled, doesn't support 
DPO or FUA
SCSI device sda: 156250000 512-byte hdwr sectors (80000 MB)
SCSI device sda: write cache: enabled, read cache: enabled, doesn't support 
DPO or FUA
sd 2:0:0:0: Attached scsi disk sda

Bye...

	Dirk
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Re: [gentoo-user] Problem install Gentoo on New Laptop - Solved

[Colleen Beamer]

Dirk Heinrichs wrote:
> Am Montag, 30. April 2007 schrieb ext Graham Murray:
>> Dirk Heinrichs <dirk.heinrichs.ext@nsn.com> writes:
>>> Sata support may not be enough. Since all the SATA stuff has been put
>>> into the SCSI subsystem, you would need support for SCSI disks (and
>>> maybe CDRoms as well):
>> In the latest kernels, SATA is no longer in the SCSI subsystem but has
>> been 'split' into its own libata subsystem.

Thanks so much to everyone who replied to this thread.  I *had* missed
something when compiling the kernel.  I paid attention to all responses
and the suggestions made caused me to pay closer attention to my kernel
selections and this paid off.

Regards,

Colleen
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Re: [gentoo-user] Problem install Gentoo on New Laptop

[Elias Probst]

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On Monday 30 April 2007 02:19:12 Colleen Beamer wrote:
> Then it says:
> /dev/sda3 is not a valid root device
>
> I probably did something wrong, but I've started from scratch 3 times
> and I get the same problem.  I've used genkernel and it looks like sata
> support has been built in.
>
Try to add
libata.atapi_enabled=1 combined_mode=libata
to your Kernel parameters in grub.conf/lilo.conf.

Regards, Elias P.

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