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2.6.8-rc3: vfat problem [was: Re: [Problem] 2.6.8-rc3: usb-storage devices are read-only (NOT related to iocharset)]

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rjwysocki at sisk

Aug 9, 2004, 11:15 AM

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2.6.8-rc3: vfat problem [was: Re: [Problem] 2.6.8-rc3: usb-storage devices are read-only (NOT related to iocharset)]

On Monday 09 of August 2004 11:56, Filip Van Raemdonck wrote:
> On Sun, Aug 08, 2004 at 10:09:23PM +0200, R. J. Wysocki wrote:
> > On Sunday 08 of August 2004 21:57, R. J. Wysocki wrote:
> > > On 2.6.8-rc3 and 2.6.8-rc2-mm2 I get:
> > >
> > > chimera:~ # mount -t vfat -o iocharset=iso8859-2 /dev/sdd1
> > > /media/pendrive [snip]
> > > chimera:~ # mount -t vfat -o codepage=437 /dev/sdd1 /media/pendrive
> > > [snip]
>
> Does it work if you specify both iocharset and codepage?

Yes. They may be contradictory, however (eg if I specify codepage=437 and
iocharset=iso8859-2 it kind of "works", but I don't think it's OK).

Thanks,
RJW

--
Rafael J. Wysocki
[tel. (+48) 605 053 693]
----------------------------
For a successful technology, reality must take precedence over public
relations, for nature cannot be fooled.
-- Richard P. Feynman
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rjwysocki at sisk

Aug 9, 2004, 11:39 AM

Post #2 of 3 (471 views)
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2.6.8-rc3: vfat problem [was: Re: [Problem] 2.6.8-rc3: usb-storage devices are read-only (NOT related to iocharset)] [In reply to]

On Monday 09 of August 2004 15:03, Paul Jackson wrote:
> I've been mounting my vfat /boot/efi elilo (this is on an SN2, which
> uses ia64 boot conventions) boot partition read-write by doing:
>
> mount -o remount,rw /boot/efi
>
> after it comes up mounted read-only. Does that help? This is on
> 2.6.8-rc2-mm2.

Yes, it does, but you have to be root to do this (ie overkill). However, it
turns out that the "first" mount works if you specify both codepage and
iocharset at the same time even if they do not fit each to other (eg cp437
and iso8859-2). It looks like a bug to me.

Thanks,
RJW

PS
BTW, I think the mount should be reported as "ro" if it's not _really_ "rw".

--
Rafael J. Wysocki
[tel. (+48) 605 053 693]
----------------------------
For a successful technology, reality must take precedence over public
relations, for nature cannot be fooled.
-- Richard P. Feynman
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pj at sgi

Aug 9, 2004, 12:08 PM

Post #3 of 3 (476 views)
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Re: 2.6.8-rc3: vfat problem [was: Re: [Problem] 2.6.8-rc3: usb-storage devices are read-only (NOT related to iocharset)] [In reply to]

I've seen other messages fly by on lkml concerning the vfat the ro/rw,
code page, and such confusions you report. The points you raise make
sense ... I haven't been paying close enough attention to explain
further. I've just been happily using the remount,rw workaround ...

--
I won't rest till it's the best ...
Programmer, Linux Scalability
Paul Jackson <pj [at] sgi> 1.650.933.1373
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