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Date: Fri, 15 Oct 2010 14:25:31 -0700
From: Bill Longman <bill.longman@gmail.com>
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Subject: Re: [gentoo-user] Problem with new install
References: <201010151129.18927.mdiehl@diehlnet.com> <4CB89212.7020801@f_philipp.fastmail.net> <201010151323.22854.mdiehl@diehlnet.com>
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On 10/15/2010 12:23 PM, Mike Diehl wrote:
> On Friday 15 October 2010 11:40:34 am Florian Philipp wrote:
>> Am 15.10.2010 19:29, schrieb Mike Diehl:
>>> Hi all.
>>>
>>> I've never had this much trouble with a server before, but I've been
>>> pulling my hair out.
>>>
>>> The install seemed to go well, but when I rebooted it from it's own hard
>>> drive, it fails. fsck claims that it can't open /dev/sda3 or that the
>>> superblock doesn't describe a valid ext2 filesystem.
>
>> *All* of the drivers could be too much. There is a generic driver which
>> can prevent the "right" driver from taking over. In that case you end up
>> with a /dev/hda node and no DMA. Try to deactivate "Generic ATA support"
>> = CONFIG_ATA_GENERIC and "generic/default IDE chipset support" =
>> CONFIG_IDE_GENERIC.
>> I think it is the second option that causes that problem. However, you
>> won't need the first option, either.
>
> I tried this, first without success. I then ran through all combinations of
> sda3, sdb3, hda3, hdb3 in /etc/fstab. This didn't work.
>
>> Instead of your brute-force "yes to all" approach, newer kernels also
>> support `make localyesconfig` which takes all modules currently used in
>> the running kernel and compiles them into the new kernel. It is very
>> helpful when you already have a good but generic kernel like the one on
>> your live CD.
>
> I tried this, next. At least now, I believe I have a viable kernel. But it
> still didn't work.
>
>> If even that doesn't help, it might be possible that the device
>> numbering has changed and your hard disk is detected as /dev/sdb or so.
>> Try mounting it by UUID (google for it, please).
>
> I tried this. Only now, fsck.ext2 tells me that it can't resolve the UUID.
>
> Here is the new fstab:
> /dev/sda1 /boot ext2 noauto,noatime 1 2
>
> UUID=ba7511dd-a5f9-48d8-8102-cf71c08a0c7b / ext2 noatime 0 1
>
> /dev/sda2 none swap sw 0 0
> /dev/cdrom /mnt/cdrom auto noauto,ro 0 0
>
> At this point, I'm going to move the drive to a different port on the SATA
> chain; shouldn't change anything, but I'm running out of ideas. I'll also
> check the BIOS for anything stupid-obvious.
You might also want to jump into grub's shell and look around in /dev
for devices. If they are there, you know the kernel is providing the
modules correctly. They might not be sda but hda or vice-versa. Also,
you can use lsmod and make sure.