Re: [gentoo-user] openvz kernel and ext4

[Kyle Bader <kyle.bader@gmail.com>]

Ext4 was very new around 2.6.27,. The kenel is likely refusing to
mount the filesystem because the kernel driver is experimental (old)
and the filesystem was created when a different kernel was loaded (non
experimental ext4).  Using the old driver could compromise the
integrity so the kernel refuses.  You might have better luck with a
more recent kernel.

On 7/15/10, Xi Shen <davidshen84@googlemail.com> wrote:
> sure, i do not need ext4dev, i want to use ext4 only. but i did not
> find a compile option for ext4, i only find a option for ext4dev/ext4.
>
> the openvz i emerged is 2.6.27.6.1, which is the latest stable
> version. is it too old? should i try newer unstable version?
>
>
> On Thu, Jul 15, 2010 at 7:40 PM, Albert Hopkins <marduk@letterboxes.org>
> wrote:
>> On Thu, 2010-07-15 at 19:34 +0800, Xi Shen wrote:
>>> i emerged the openvz kernel, and compiled the kernel with ext4dev/ext4
>>> file system support. but when i tried to boot my system, i got a
>>> kernel panic. it says cannot mount my ext4 root, because it is not
>>> marked ok to use with test code.
>>>
>>> my root is at a ext4 file system, and i think the ext4dev/ext4 kernel
>>> compile option would allow me to use both ext4 and ext4dev features,
>>> am i wrong?
>>>
>>> i do not want to use ext4dev on my root, neither do i want to
>>> downgrade to ext3. is there a way to fix this?
>>
>> You don't need ext4dev.  ext4dev is old and, unless you've used it
>> before, there's no need to use it today.  I'm guessing that's giving you
>> that error (that's an old error).  It's easy to fix though (do a Google
>> search for the error).  But it should not even occur if you've never
>> used ext4dev, IIRC.
>>
>> -a
>>
>>
>>
>>
>
>
>
> --
> Best Regards,
> Xi Shen (David)
>
> http://twitter.com/davidshen84/
>
>

-- 
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Kyle