File:  [NetBSD Developer Wiki] / wikisrc / projects / project / improved-automounter-support.mdwn
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Sun Nov 6 14:48:47 2011 UTC (2 years, 5 months ago) by jmmv
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Define the per-project category and difficulty at the template level,
instead of manually tagging the project pages.  While doing this, prefix
the tags with "category:" and "difficulty:" to make them easier to

[[!template id=project

title="Improved Automounter Support"


[Matthias Scheler](

duration="3 months"

NetBSD currently uses [The Berkeley Automounter Suite of Utilities]( for automatically mounting (network) file systems. This software package implements an automounter file system as a userland NFS daemon. While this generally works it has major drawbacks:

* File systems are not mounted directly on the desired mount point. As a result applications frequently use incorrect pathnames (e.g. `/amd/server/home/user` instead of `/home/user`) for automatically mounted directories or files beneath them. This is especially problematic in heterogeneous enviroments where not all machines use the same automounter.
* The automounter daemon cannot handle high I/O load very well, file access occasionally fails with intermittent errors.

The goal of this project is to implement a new automounter solution which addresses the above issues. This could either be done via a Solaris/Linux compatible autofs(4) full in-kernel file system or via a userland daemon using [puffs]( 

[[!tag gsoc]]

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