Some ideas for FreeBSD

Joshua Isom jrisom at
Sat Feb 9 21:49:57 UTC 2008

Here's an idea for FreeBSD that would be practical.  Since having 
several partitions on the same disk is standard for FreeBSD and most 
Unixes, instead of dealing with running out of space on a partition, 
when you have gigs available on another, why not allow one partition to 
create an overflow file on another partition, or perhaps a dedicated 
amount of the swap partition if it's on the same disk, to keep from 
running out of space?  It'd probably have to be limited to one disk, 
but that wouldn't hinder things too much.  Dealing with unmounted 
filesystems would be annoying but probably doable without too much risk 
of problems(could even use the swap partition, and on say /usr just 
have a file for swap?).  The most obvious case of how this could be 
good would be the root partition when you're updating the system, 
especially with debug symbols or perhaps multiple kernels(say a generic 
debug, optimized debug, generic, and optimized?).

The best reason for doing something like this, you can keep the 
partitions for "disk optimization" and still have the ease of use of a 
single partition like OS X, Ubuntu, or PCBSD.

Maybe this would be good for FreeBSD 8 or 9?

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