Mailinglist Archive: opensuse (818 mails)

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Re: [opensuse] Re: Howto repair - corrupt jpeg file - anything new out there?
On Wed, 21 Sep 2011 02:33:29 -0400, "Brian K. White" <brian@xxxxxxxxx>
wrote:

On 9/20/2011 10:10 PM, Philipp Thomas wrote:
On Tue, 20 Sep 2011 19:51:10 -0400, "Brian K. White"<brian@xxxxxxxxx>

Feel free to read up on FAT, or don't.

I do know what FAT is, I even repaired FAT drives with a disk editor,
so don't call me ignorant or unknowledgeable. Believe me, FAT is among
the simplest file systems ever created.

But gee if you haven't used enough flash devices to have encountered a
few oddball compatibility quirks directly over the years, just do
something incredibly advanced like pull up the wikipedia entry for FAT,
and right there alone, just as a starter, you should see that between
the various versions of fat that exist or have existed, and the various
configurable values and the various subsets of those that were actually
ever common or ever generated by any Microsoft program, there are many
many possible permutations that would all fall within the rules.

I know, but then pray tell me why most people can simply plug their SD
card into their camera and it works without having been formated?

could just as easily generate NTFS

Not really. The difference between FAT and NTFS is as big as yours to
a stoneage man, i.e. lightyears apart.

The docs for the camera simply said 2G of course since that's the biggest
size where everything "just works".
[...]
but FAT is FAT is FAT right?

What you describe has more to do with the SD card spec than with FAT,
but there are of cause at least fat16, fat32 and now that abomination
Exfat.

And yes, in my day-to-day job I get to know a fair bit of broken BIOS
code and devices, specially cheap (vor varying definitions of cheap :)
consumer devices also have their quirks.

Philipp
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