Re: grub-probe detects ext4 wronly as ext2

[Felix Zielcke]

From: "JavierMartín" <address@hidden>
Sent: Wednesday, July 16, 2008 5:09 PM
To: "The development of GRUB 2" <address@hidden>
Subject: Re: grub-probe detects ext4 wronly as ext2

> I see the ext4 patch was checked in recently. Can the "forbid-incompat"
> patch with the new, specific error messages be committed too then? I'm
> submitting an updated version (i.e. against the current HEAD) because
> new lines were added.
>
> PS: does the ext4 patch add support for META_BG? it should be added to
> the list of supported incompat features then.

I don't know what this META_BG is but even the ext2 kernel driver supports 
it [0]
Maybe the list of flags have a bit changed so I'm so nice and give you even 
a git link to the current ext4.h in Linus' official git tree [1]
You'll probably mean FLEX_BG :)

I didn't take a deep look at the changes between the first patch from Bean 
and the last one which he commited.
But for me it's now working fine with whole / on ext4 made with the final 
e2fsprogs 1.41 in Debian unstable,
with flex_bg,extents and uninit_bg from the INCOMPAT list, so flex_bg and 
uninit_bg should be added to your list which are ignored/supported

Maybe it's just luck for me that it works now with uninit_bg and flex_bg, 
the best would be if other people would test it

[0] 
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=blob;f=include/linux/ext2_fs.h;hb=HEAD
[1] 
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=blob;f=fs/ext4/ext4.h;hb=HEAD