[parisc-linux] Re: accessing TOS and VFAT partitions on Linux (fwd)

[Martin-Éric Racine]

I have submitted this to the m68k list first, hoping that someone might know,
and this is where Richard Zidlicky tried to help, but it looks like this _might_
be dependant upon an m68k-only patch... or is it?

Should the 2.4.18 kernel distributed thru the Woody/hppa tree be able to find
not just Atari partitions, but also Atari's own flavor of DOS filesystem?

The kernel I run is based upon the defaults found in the 2.4.18-32 kernel, but
has Atari partitions support enabled.

PS:  I do not subscribe to parisc-linux, only to debian-hppa; please CC to me.

-- 
Martin-Éric Racine, Espoo, Finland.
"Kas sa tahad mind? - Nej!!! Är du en idiot?!!"
http://www.pp.fishpool.fi/~q-funk/

---------- Forwarded message ----------
Date: Tue, 10 Sep 2002 14:37:28 +0200
From: Richard Zidlicky <rz@linux-m68k.org>
To: Martin-Éric Racine <q-funk@pp.fishpool.fi>
Subject: Re: accessing TOS and VFAT partitions on Linux

On Tue, Sep 10, 2002 at 03:09:57PM +0300, Martin-Éric Racine wrote:
> On Tue, 10 Sep 2002, Richard Zidlicky wrote:
> 
> > On Tue, Sep 10, 2002 at 08:36:29AM +0300, Martin-Éric Racine wrote:
> > > > > Is there any special trick to access those FAT partitions on Linu=
x?
> > > > 
> > > > use 'atari=yes' option to mount it.. doesn't appear to have it ma=
de into the
> > > > manpages yet?
> > > 
> > > Nor does it appear to work. :(
> > 
> > what does it say? Kernel or mount problem? 
> 
> The relevant part of /etc/fstab:
> 
> /dev/sdb1 /TT030/C msdos defaults,errors=remount-ro,atari=yes 0 2
> /dev/sdb2 /TT030/D msdos defaults,errors=remount-ro,atari=yes 0 2
> /dev/sdb3 /TT030/E ext2 defaults,errors=remount-ro 0 2
> /dev/sdb4 /TT030/F ext2 defaults,errors=remount-ro 0 2
> /dev/sdb5 /TT030/G ext2 defaults,errors=remount-ro 0 2
> /dev/sdb6 /TT030/H ext2 defaults,errors=remount-ro 0 2
> /dev/sdb7 /TT030/I vfat defaults,errors=remount-ro,atari=yes 0 2
> /dev/sdb8 /TT030/J swap sw 0 2
> /dev/sdb9 /TT030/K ext2 defaults,errors=remount-ro 0 2
> /dev/sdb10 /TT030/L msdos defaults,errors=remount-ro,atari=yes 0 2
> /dev/sdb11 /TT030/M ext2 defaults,errors=remount-ro 0 2
> 
> <root@zarya:/root># mount -a
> mount: wrong fs type, bad option, bad superblock on /dev/sdb1,
>        or too many mounted file systems
> mount: wrong fs type, bad option, bad superblock on /dev/sdb2,
>        or too many mounted file systems
> mount: wrong fs type, bad option, bad superblock on /dev/sdb7,
>        or too many mounted file systems
> mount: wrong fs type, bad option, bad superblock on /dev/sdb10,
>        or too many mounted file systems

this looks like kernel problem than.. not quite sure if or when
that stuff was ever merged into mainline kernel. Certainly not
before 2.4.13.

> 
> Linux zarya 2.4.18 #3 ti elo 27 02:15:57 EEST 2002 parisc unknown unkno=
wn GNU/Linux
> 
> > Quite possible that you will need to fetch a kernel from linux-m68k-cvs=
.apia.dhs.org
> 
> You produce non-m68k kernels too? ;-)

the diff between m68k and Linus tree is very small in 2.4.19, our
kernels should work perfectly on x86. Certainly not optimised for
parisc though :(
Compare your fs/fat/inode.c with ours, possibly also 2.4.19.

> > > Is that "atari=yes" option found only in a special version of mount=
?
> > 
> > doesn't appear like special support were required here, I know only the=
 
> > kernel side of it. It would be possible to compile a special 386 kernel=
 
> > with that parameter hardcoded into it (in fs/fat/inode.c change 
> > #ifdef CONFIG_ATARI to #if 1). Might not work with ordinary MSDOS volum=
es
> > very well than.
> 
> That's not desirable, of course.

might be worth a try, after looking at the stuff it appears to do some
autodetection. It should certainly continue to work at least on MSDOS
floppies.

Richard