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9. Exporting filesystems

The way to export filesytems with NFS is not completely consistent across platforms of course. In this case Linux and Solaris 2 are the deviants. This section lists, superficially the way to do it on most systems. If the kind of system you have is not covered you must check your OS man-pages. Keywords are: nfsd, system administration tool, rc scripts, boot scripts, boot sequence, /etc/exports, exportfs. I'll use one example throughout this section: How to export /mn/eris/local to apollon read/write.

9.1 IRIX, HP-UX, Digital-UNIX, Ultrix, SunOS 4 (Solaris 1), AIX

These OSes use the traditional Sun export format. In /etc/exports write:

/mn/eris/local -rw=apollon

The complete documentation is in the exports man page. After editing the file run exportfs -av to export the filesystems.

How strict the exportfs command is about the syntax varies. On some OSes you will find that previously entered lines reads:

/mn/eris/local apollon

or even something degenerate like:

/mn/eris/local rw=apollon

I recommend being formal. You risk that the next version of exportfs if much stricter and then suddenly everything will stop working.

9.2 Solaris 2

Sun completely re-invented the wheel when they did Solaris 2. So this is completely different from all other OSes. What you do is edit the file /etc/dfs/dfstab. In it you place share commands as documented in the share(1M) man page. Like this:

share -o rw=apollon -d "Eris Local" /mn/eris/local

After editing run the program shareall to export the filesystems.

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