Re: "Can't find root device" with lvm root after moving drive on CentOS 6.3

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Thank you, I will do this tomorrow. It'll take me a little time, since I 
need to transcribe everything manually, but I'll get it done. It's just 
a very weird problem all in all.

-- 
Joakim Ziegler  -  Supervisor de postproducción  -  Terminal
joakim@xxxxxxxxxxxxxx   -   044 55 2971 8514   -   5264 0864

On 24/03/13 23:29, Gordon Messmer wrote:
> On 03/22/2013 08:27 PM, Joakim Ziegler wrote:
>> So, after all this, my question is, how do I make Dracut (I'm assuming)
>> understand that this LVM volume is my root device and pick it up
>> automatically?
>
> I've looked through Dracut trying to spot circumstances that might cause
> the problem that you've described, but came up with nothing.  udev
> should be scanning block devices as they become available, and setting
> up any logical volumes on all of the available block devices.
>
> It may be useful to capture some information in the debugging shell,
> before running vgscan.
>
> As suggested in the fedora debugging document, capture the output of the
> following commands to get a better idea of what the kernel knows about
> block devices before you manually start the volumes, and maybe that'll
> lead us to some conclusion about why the devices aren't found.
>
> lvm pvdisplay
> lvm vgdisplay
> lvm lvdisplay
> blkid
> dmesg
>
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