From: Artem Bityutskiy <dedekind@infradead.org>
To: John Smith <john@arrows.demon.co.uk>
Cc: linux-mtd@lists.infradead.org
Subject: Re: UBI: Can I boot with an UBI volume holding a root file system?
Date: Sat, 05 May 2007 17:08:59 +0300 [thread overview]
Message-ID: <1178374139.3659.150.camel@sauron> (raw)
In-Reply-To: <Pine.LNX.4.33.0705042323250.30567-100000@arrows.demon.co.uk>
On Fri, 2007-05-04 at 23:42 +0100, John Smith wrote:
> I am hoping to build a root file system and store it as a squashfs
> image in a static UBI volume. What command line should I should pass
> to the kernel at boot time?
>
> There are likely to be other UBI volumes in the UBI partition which
> will each get mapped to a /dev/mtdblock device. Is it going to be
> difficult to identify the major/minor numbers of the device which will
> mapped to my squashfs image?
>
> I think that I need to add some initramfs logic, but I am very
> uncertain of the details. I will be grateful for any ideas,
I have never tried this and I guess nobody did. But you may try and send
us a text to add to faq on MTD site :-)
One thing for you to keep in mind: use proper volume alignment. I am not
sure what is squashfs block size probably 512 bytes, then use alignment
512. In this case you will end up with 512-byte aligned logical
eraseblocks. this will make your life easier.
--
Best regards,
Artem Bityutskiy (Битюцкий Артём)
next prev parent reply other threads:[~2007-05-05 14:09 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-05-04 22:42 UBI: Can I boot with an UBI volume holding a root file system? John Smith
2007-05-05 11:51 ` Artem Bityutskiy
2007-05-05 14:08 ` Artem Bityutskiy [this message]
2007-05-06 11:25 ` John Smith
2007-05-06 11:55 ` Artem Bityutskiy
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