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Re: new e2fstools and parted not playing nice?
From: |
Andrew Clausen |
Subject: |
Re: new e2fstools and parted not playing nice? |
Date: |
Sat, 30 Oct 2004 09:38:53 +0000 |
User-agent: |
Mutt/1.5.6+20040722i |
On Thu, Oct 28, 2004 at 03:13:19PM +0200, B.Hakvoort wrote:
> The problem is, a lot of us are willing to dedicate time to this, but
> don't have the slightest idea where to start.
> So it would take us 2 weeks only to understand the code, not to mention
> fix it.
>
> Do you know of some documentation which explains the ext2/3 filesystem
> in-depth?
First, I recommend "The Design and Implementation of 4.4BSD" by
McKusick, Bostic, Karels and Quarterman. It is a great introduction
to operating systems in general, so you wouldn't be wasting your
money.
Second, you might find www.nongnu.org/ext2-doc/ext2.html helpful.
> Or maybe you can tell us something more about the current
> problems and in which functions/files we have to look into.
The problem is summarized in ext2_determine_itoffset().
There are several magic numbers in there that say that the
ext2 resizer requires the block bitmap to start 2 blocks before
the inode table in sparse groups, and so on.
Cheers,
Andrew