UUID anomaly

Markus Schönhaber ubuntu-users at list-post.mks-mail.de
Fri Jul 9 14:57:52 UTC 2010

09.07.2010 16:21, Rei Shinozuka:

> I've been burnt by this cache business before.  Using libblkid 2.17.0 
> the blkid -p option bypasses cache.

As I see it, blkid -p will only give an access denied error if run as an
unprivileged user (no access to the raw device).
OTOH, when run as privileged user, without -p, blkid should verify if
the cached information is still correct.

So, in my understanding, -p isn't useful for an unprivileged user and a
privileged one doesn't need it.
The only difference I can spot is, that blkid -p (as root) doesn't
*write* to the cache either.


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