Re: splitting root partition into root, usr, var etc.

[Albannach]

On Tuesday 03 December 2002 22:59, Andrew Clausen wrote\n%s:
> On Tue, Dec 03, 2002 at 12:22:52PM +0100, Sven Hartrumpf wrote:
> > Hi all.
> > 
> > We have some Linux boxes (SuSE 7.2 and 8.1) sitting around that do not 
have
> > separate partitions for /, /usr, /var etc. :
> > 
<snip>

> 
> > 2. Has anybody tested/documented a safe method to split "/" in a way 
described
> >    above?  (Without reinstalling, of course.)
> 
> Yes and no.  There aren't any simple point-and-click methods, though.
> You can use convertfs, but this is really only targetted at experienced
> users / hackers.  (Yes, we should incorporate this into parted, but
> it isn't really obvious how this should be done)
> 
> You can find out more about convertfs here:
> 
>       http://members.optusnet.com.au/clausen/ideas/convertfs
> 
> Cheers,
> Andrew
If you have suffecent free space,
you can shrink /  to the minimum size, create the partitions you want,
then drop to the shell, and move the files into the new partition(s).
If / is almost full this might not be possible, or might take several passes, 
one per partition.  

This was the approach I used when I split of /usr and /home from my main 
partition.


One common partitioning system is
/
/var
/usr
/home

with /tmp pointing into /var/tmp/
This of course assumes you trust your users not to fill /var/tmp/
If not, it will need its own partition (a lot of daemons get unhappy if you 
fill /var/spool or /var/log ).

HTH
CS Miller






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