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From: Mark Knecht <markknecht@gmail.com>
To: gentoo-amd64@lists.gentoo.org
Subject: Re: [gentoo-amd64] If CD boots then why won't the hard drive?
Date: Fri, 22 Jan 2010 09:40:32 -0800	[thread overview]
Message-ID: <5bdc1c8b1001220940x4a16dd93wb409aec39b1be931@mail.gmail.com> (raw)
In-Reply-To: <58965d8a1001220907l2828670dg960c5fc149a73b5@mail.gmail.com>

On Fri, Jan 22, 2010 at 9:07 AM, Paul Hartman
<paul.hartman+gentoo@gmail.com> wrote:
> On Fri, Jan 22, 2010 at 10:57 AM, Mark Knecht <markknecht@gmail.com> wrote:
>> On Fri, Jan 22, 2010 at 8:26 AM, Paul Hartman
>> <paul.hartman+gentoo@gmail.com> wrote:
>>> On Fri, Jan 22, 2010 at 10:04 AM, Mark Knecht <markknecht@gmail.com> wrote:
>>>> Hi again,
>>>>   Same new machine - new thread so as to not confuse the other thread
>>>> about flags.
>>>>
>>>>   I made enough headway with grub to get it to find a kernel and try
>>>> to boot, but fails with the message:
>>>>
>>>> VFS: Cannot open root device "sda2" or unknown-block(2,0)
>>>> Please append a correct "root=" boot option; Here are the available partitions:
>>>> Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(2,0)
>>>>
>>>> Note that is lists nothing when it says 'Here are the available partitions:'
>>>
>>> It really seems like it's missing the appropriate filesystem driver to me.
>>>
>>> Since you mentioned ext2 and ext3 built into the kernel but not ext4,
>>> I wonder if the auto-detect is trying to mount your partition as ext4
>>> type? Try to add the rootfstype=ext3 (or whatever your root FS type
>>> is) to your boot line to force it to use the specific filesystem
>>> driver you want.
>>>
>>>
>> In this case it was the chipset drivers not being built in. I'm now
>> booting successfully into Gentoo, albeit a very stripped down
>> nothing-but-install-CD system.
>>
>> At least now, as far as Gentoo is concerned, I can work with tools on
>> the hard drive and maybe see what I can make the machine do. hdparm
>> says 65MB/Sec so I've got enough disk speed to make an emerge @world
>> go reasonably fast. top shows all 4 processors. This is my first SMP
>> machine running Gentoo. I'm looking forward to it. My graphic
>> performance (not important to me as I do mostly audio stuff) will be
>> low as I'm using the 900MHz Intel VGA that's built into the processor
>> of the i5-661, not the chipset, so far less traffic to the North
>> Bridge if I understand correctly. We'll see.
>>
>> I'll be back. Windows still doesn't boot and I don't so far think it's
>> a grub problem but I need to do some research on the error messages...
>>
>> Thanks!
>
> Glad you got it working. Gentoo on SMP is a match made in heaven. :)
>
> Also, if you're using Windows 7 in dual-boot on there beware of some
> possible conflicts with GRUB:
> http://community.zdnet.co.uk/blog/0,1000000567,10014915o-2000498448b,00.htm
>
>
thanks for the pointer. I'll be careful. I'm still on XP and if I've
got enough power I may try to run most of my Windows stuff in vmware
and never go to Win 7. We'll see.

I may need to some back and ask some questions about grub and
dual-boot anyway as I expect it was my grub install that corrupted the
existing Windows installation but I don't know yet.

Again, thanks!

Cheers,
Mark



      reply	other threads:[~2010-01-22 17:41 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2010-01-22 16:04 [gentoo-amd64] If CD boots then why won't the hard drive? Mark Knecht
2010-01-22 16:23 ` [gentoo-amd64] " Mark Knecht
2010-01-22 16:26 ` [gentoo-amd64] " Paul Hartman
2010-01-22 16:57   ` Mark Knecht
2010-01-22 17:07     ` Paul Hartman
2010-01-22 17:40       ` Mark Knecht [this message]

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