-shawn
On Thu, 30 Jul 1998, John Campbell wrote:
> I've just discovered that if I'm on a vfat partition and I issue the
> command "cd ...", it accepts it, despite the fact that there is no directory
> named "...". After this command, the current directory appears in the bash
> prompt and to pwd as if there was a directory named "..." (i.e. if I'm in
> "/win95/mps/civ2" and I "cd ...", it says I'm in "/win95/mps/civ2/..."), but
> from ls output and such, it looks like the directory I'm actually in is the
> ".." directory ("/win95/mps", in the above example). The exception is if I'm
> in the root directory of the vfat partition ("/win95") and I issue the
> command, in which case I end up right where I started, and it still shows up
> with the "..." (still in "/win95", but it shows up as "/win95/...").
>
> This behaviour only exists on vfat, not on msdos, smbfs, hpfs, ext2,
> proc, nfs, or ncpfs (though that last actually does support "cd ..." from
> DOS clients, but not Linux clients, as a legitimate feature; "cd ..."
> changes to the parent's parent, "cd ...." changes to the parent's parent's
> parent, and so on 'til you run out of parents). The machine is 5 miles away
> and hasn't got a CD in its drive at the moment, so I can't test iso9660.
>
> Both bash and tcsh behave pretty much the same way (pwd can't figure
> out the current directory at all in tcsh, but the $PWD environment variable
> contains the "/win95/mps/civ2/..." directory), so I assume this is a
> filesystem bug.
>
> The machine is a 2.0.35 box with a non-FAT32 VFAT partition created
> by Win95 OSR2 (I think... I'm not certain about the Win95 release number).
> I'm not equipped at the moment to check if the behaviour's the same in other
> kernel versions - 2.1 kernels, or the ones before FAT32 was added to 2.0,
> for example.
>
> ---
> John Campbell
> jcampbel@lynn.ci-n.com
>
> QotD: Live fast, die young, leave a heavily modified corpse.
>
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