On Wed, 17 Oct 2007, Stefan Esser wrote:
Alfred Perlstein wrote:
* Ceri Davies <[EMAIL PROTECTED]> [071016 15:59] wrote:
While userland can tell if a filesystem is pseudo or not, (see lsvfs), I'm
not sure that we can reliably tell whether a device is removable or not
(cf. my camera, USB key, iPod, etc.).
fstab(5) gives some hints, "noauto" would be a giveaway as well as value of
0 for 'fs_passno' is also a hint.
Hmmm, file systems with noauto could be added to $PRUNEPATHS, I guess. But
I'm against too much magic behind the scenes, since that may lead to
violation of the POLA. I'll give it a try, anyway ...
Other sub-directories exist that should be kept out of the locate db like
/var/spool for example. Probably there are many more ...
Another possibility here is to add a noindex flag to fstab/mount options and
to explicitly mark things that locate (and things that might follow locate)
shouldn't index in addition to network file systems. Desktop auto-mounters
could set the flag automatically. I also find myself a bit nervous about
heuristics that think certain file systems might be removable devices
implicitly, or certain types of drives, etc.
Robert N M Watson
Computer Laboratory
University of Cambridge
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