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List: unison-users
Subject: Re: [unison-users] canonical name does not include host?!
From: Norman Ramsey <nr () eecs ! harvard ! edu>
Date: 2007-10-31 17:31:35
Message-ID: 20071031173138.454851EB17C () labrador ! eecs ! harvard ! edu
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> > I'm trying to manage my horrid setup with 5 different machines
> > using Unison's two-way synchronization. In order not to lose
> > information about past synchronization, I have to be extremely
> > aggressive
> > about root aliases. So I made a patch that actually prints out
> > the names of the roots for which no archive exists, so that I can
> > insert the appropriate alias command. But I am flabbergasted to learn
> > that one of the roots is 'bare', with no hostname:
> >
> > Warning: No archive files were found for these roots, whose
> > canonical names are:
> > /home/nr
> > //golden.eecs.harvard.edu//home/nr
> >
> > For the first root, I expected something like
> >
> > //<hostname>//home/nr
> >
> > since I can't possibly put a reasonable alias on '/home/nr' that will
> > be valid on every machine. Where did I go wrong?
>
> Unison internally distinguishes between "local" and "remote" roots
> (so that it knows whether to access things directly in the local
> filesystem or indirectly over the network).
This may be the case, but I'm afraid I understand even less than
before. On my machines at work, /home/nr has been dealt with by
various different automounters at various different times. This mess
has left my unison profile full of legacy aliases such as these:
rootalias = //labrador//home/nr -> //labrador//.amd/lair60/vol/vol0/home/nr
rootalias = //labrador//amd/lair60/vol/vol0/home/nr -> //labrador//.amd/lair60/vol/vol0/home/nr
rootalias = //drdoom//amd/lair60/vol/vol0/home/nr -> //labrador//.amd/lair60/vol/vol0/home/nr
rootalias = //drdoom//amd/lair62/vol/vol0/home/nr -> //labrador//.amd/lair60/vol/vol0/home/nr
If as you say unison always distinguishes the 'local' and 'remote'
roots, why was it ever necessary to insert these aliases---and more to
the point, why did they work? (It's possible that these aliases date
to older versions of Unison.)
Norman
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<p> > > I'm trying to manage my horrid setup with 5 different \
machines<br> > > using Unison's two-way synchronization. In order not to \
lose<br> > > information about past synchronization, I have to be extremely \
<br> > > aggressive<br>
> > about root aliases. So I made a patch that actually prints out<br>
> > the names of the roots for which no archive exists, so that I can<br>
> > insert the appropriate alias command. But I am flabbergasted to learn<br>
> > that one of the roots is 'bare', with no hostname:<br>
> ><br>
> > Warning: No archive files were found for these roots, whose <br>
> > canonical names are:<br>
> > /home/nr<br>
> > //golden.eecs.<wbr>harvard.edu/<wbr>/home/nr<br>
> ><br>
> > For the first root, I expected something like<br>
> ><br>
> > //<hostname><wbr>//home/nr<br>
> ><br>
> > since I can't possibly put a reasonable alias on '/home/nr' that will<br>
> > be valid on every machine. Where did I go wrong?<br>
> <br>
> Unison internally distinguishes between "local" and \
"remote" roots <br> > (so that it knows whether to access things \
directly in the local <br> > filesystem or indirectly over the network).<br>
<br>
This may be the case, but I'm afraid I understand even less than<br>
before. On my machines at work, /home/nr has been dealt with by<br>
various different automounters at various different times. This mess<br>
has left my unison profile full of legacy aliases such as these:<br>
<br>
rootalias = //labrador//<wbr>home/nr -> \
//labrador//<wbr>.amd/lair60/<wbr>vol/vol0/<wbr>home/nr<br> rootalias = \
//labrador//<wbr>amd/lair60/<wbr>vol/vol0/<wbr>home/nr -> \
//labrador//<wbr>.amd/lair60/<wbr>vol/vol0/<wbr>home/nr<br> rootalias = \
//drdoom//amd/<wbr>lair60/vol/<wbr>vol0/home/<wbr>nr -> \
//labrador//<wbr>.amd/lair60/<wbr>vol/vol0/<wbr>home/nr<br> rootalias = \
//drdoom//amd/<wbr>lair62/vol/<wbr>vol0/home/<wbr>nr -> \
//labrador//<wbr>.amd/lair60/<wbr>vol/vol0/<wbr>home/nr<br> <br>
If as you say unison always distinguishes the 'local' and 'remote'<br>
roots, why was it ever necessary to insert these aliases---and more to<br>
the point, why did they work? (It's possible that these aliases date<br>
to older versions of Unison.)<br>
<br>
Norman<br>
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