Re: writing to FAT32
robgood1_at_bestweb.net
Date: 03/06/05
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Date: 6 Mar 2005 12:38:09 -0800
Dances With Crows wrote:
> > -t vfat seems to give me read access only,
[that is, w.r.t. floppies]
> > and mtools also seem to
> > cross that threshold in one direction only.
I'd better explain a bit more about my circumstances. I inherited a
Pentium 2, and when I got a new hard drive I partitioned its disc for
Linux & Windows. I'm dealing with a Windows XP Pro-Linux system which
is in roughly the state it was left in a year ago by someone I engaged
to fix my own slightly faulty installation of Red Hat Linux 9 and
Windows, but his installation while fixing my problems seemed to have
introduced others. He, like me, was unable to get Linux to see a modem
whether it was external (serial non-USB port) or internal (Winmodem or
hard modem). I quickly got malware running MSIE on the nets, and then
my consultant's surgery to extirpate it cut out some MSIE vitals, so I
reverted for a while to MS-DOS and shareware Net Tamer. Then I shipped
off my modem cards to someone else who got them working easily with her
Linux box and was going to put together a new system for me (having
earned my respect by beating out my local consultant), but things got
delayed interminably due to her personal problems.
Meantime I've been shuttling floppies back & forth to the college where
I teach, using their high-speed Internet cx and their Windows systems.
So I use these floppies a lot, rw both ways, Windows-Linux.
I use the Red Hat-supplied GUI (Nautilus) because the instructions so
strongly recommended it, although my tendency is to prefer command-line
over GUI interfaces; I'm used to both now, but Nautilus does slow
things down. The way I had things previously with Windows 98, the
Windows FAT partition was automounted in Linux. Unfortunately my
consultant said he couldn't do that, although he did make sure the
Windows XP Pro was laid down FAT32 rather than NTFS, and indeed the Red
Hat/Nautilus hardware browser "saw" a FAT32 partition there, but
couldn't see "below" it.
Anyway, I (as root) started manually mounting floppies via the default,
mount /dev/fd0 /mnt/floppy . That worked fine most of the time, but
sometimes the floppies (all formatted FAT) got corrupted going in one
direction or the other. Also, I noticed that when first mounted in the
"other" OS (whichever of Windows or Linux it had NOT been last used
with), the drive would grind mysteriously for a while before being
ready. I had the impression each OS was giving the floppy a delousing
before letting it pass thru its own Ellis Is.
So I finally resorted to man mount, which said the default (auto
recognition) should not be used "if you value your data". So I started
using
mount -t vfat /dev/fd0 /mnt/floppy
which was fine, but came out read-only. (Sometimes I'd just mcopy
a:file.) If I wanted to write from Linux I had to revert to
mount /dev/fd0 /mnt/floppy
and incur whatever risk, which doesn't seem to be a problem lately.
I'll repeat that the corruption incidents may have been physical. I do
handle them a bit roughly and break a few.
So I only recently decided, why not mount -t vfat /dev/hda0
/mnt/windows ? Works fine for reading, but I was afraid to try writing
to or modifying the files or directories.
Anyway, my immediate desire is to back up my Linux data to CD. I was
able to burn data via the USB reader-writer I have to CD from Windows,
but not from Linux. Linux reads the data via the USB device, and its
GUI SAYS it's writing to it, but the pilot light doesn't go on and the
data don't get laid down. So I plan to make a new Windows directory,
copy my Linux data there, and burn the CD from there. (Eventually of
course I want to get Linux to run the modem and the CD burner. Lately
I've been unable to get even MSDOS to see a modem, so I could run my
Net Tamer or even my shell account to access the nets. Last time I had
to fool around a long time with BIOS settings.)
> What is the exact mount command used? What is the corresponding line
in
> /etc/fstab ? It should be like so:
> /dev/hda1 /mnt/somewhere vfat noauto,users,umask=000 0 0
Would I have a fstab entry if I only manually mount the FAT discs (hard
disc partition or floppy)?
> > Should I try -t fat=32?
> No; that won't work. "man mount" for all the filesystem types that
> mount knows about.
Man mount lists that parameter.
Robert
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