On Thu, Sep 16, 2010 at 3:58 PM, mohit verma <[email protected]> wrote:
> hello,
> when we install any package (like  in  ubuntu) ,at end the terminal shows
> "reading database" . the idea i got by my friend is that package manager
> uses this database (like .deb or rpm).
> but my question is : everything in linux is a file so it(database or files

Everything in Linux is a file breaks down at the networking stack.
This is one location where the whole system is not abstracted through
the filesystem.

> that it contains) must be placed somewhere in the  filesystem.what is the
> difference  if i say that package manager accesses nothing but the
> filesystem ( obviously a part of it) and database of a system( computer ) is
> nothing but  the filesystem (part of it ) itself  ?
> i mean: what differs between these two that imposes us to name them
> differently?

It is possible to run a database not on a filesystem, but rather on a
raw partition without any filesystem.  That is not the case with the
package manager though.

--
John

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