Re: [hylafax-users] directory structure in Debian package (Was: kill time parameter)

[Bodo Meissner <bodo@xxxxxxxxx>]

Am 2005.06.14 00:25 schrieb(en) Giuseppe Sacco:
> I replied to the same message, already.

Hello Giuseppe,

I saw your answer just after sending mine.

> But I think that the --bind option was never really inspected.

Until Aidan's message I did not know this option exists.

> The main reason while I am reluctant is that I don't know if this
> could work on any debian architecture. I checked that it works for  
> 2.4 and 2.6 kernels. Will this work on the Hurd? What about m68k  
> systems with 2.2 linux kernels?

The man page of mount says:
Since Linux 2.4.0 it is possible to remount part of the file  hierarchy
somewhere else. The call is   mount --bind olddir newdir

No clue about Hurd.

> So, it may be a good idea to switch using --bind on 4.2.2 debian
> package: this would remove the dual directory stuff.
>
> Any other comment?

The startup script could try to use "mount --bind ..." and fall back to  
copying the files if that fails.

It will get more difficult if the user installs hylafax-server on a 2.2  
kernel and then upgrades to a 2.4 or 2.6 kernel. Should the script  
remove the files already copied? Maybe in this case the script can try  
to mount --bind to a different directory and if that succeeds, remove  
the copied files and mount --bind to the real target dir.


Bodo

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