From: Laurent CARON <lcaron@apartia.fr>
To: linux-raid@vger.kernel.org
Cc: Luca Berra <bluca@comedia.it>
Subject: Re: Bitmaps & Kernel Versions
Date: Thu, 16 Mar 2006 12:56:37 +0100 [thread overview]
Message-ID: <44195275.9010208@apartia.fr> (raw)
In-Reply-To: <20060315234333.GC25405@percy.comedia.it>
Luca Berra a écrit :
> On Wed, Mar 15, 2006 at 09:08:17PM +1100, Neil Brown wrote:
>
>> On Wednesday March 15, lcaron@unix-scripts.info wrote:
>>
>>> Hi,
>>>
>>> I'm planning to use bitmaps on some of our RAID1 arrays.
>>>
>>> I'm wondering how bitmaps are handeled by older kernels.
>>>
>>> Eg: I create a raid array with a bitmap under a 2.6.15 kernel.
>>>
>>> I now want to boot under 2.6.12, or even 2.4
>>>
>>>
>>> Hos is it handeled?
>>> Will it work even if this is my / partition?
>>
>>
>> On older kernel will not notice the bitmap and will behave
>> 'normally'.
>
> strange,
> last time i tried an older kernel would refuse to activate an md with a
> bitmap on it.
> I am far from home on a business trip and i don't have kernel-sources at
> hand, but i seem to remember that the kernel was very strict on the
> feature bitmap in the superblock.
>
> L.
>
I experienced the same strange behavior.
Bitmap was created on 2.6.15, tried to boot 2.6.14 and /dev/md0 was not
started :$.
Strange.....
-
To unsubscribe from this list: send the line "unsubscribe linux-raid" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
prev parent reply other threads:[~2006-03-16 11:56 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-03-15 9:12 Bitmaps & Kernel Versions Laurent CARON
2006-03-15 10:08 ` Neil Brown
2006-03-15 23:43 ` Luca Berra
2006-03-16 11:56 ` Laurent CARON [this message]
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=44195275.9010208@apartia.fr \
--to=lcaron@apartia.fr \
--cc=bluca@comedia.it \
--cc=linux-raid@vger.kernel.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.