Date: Thu, 15 Sep 2011 05:19:11 -0400 From: f92902@hushmail.com To: freebsd-questions@freebsd.org Subject: Re: FreeBSD 8.2 Partition Sizing question Message-ID: <20110915091911.60BAD10E2D6@smtp.hushmail.com>
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> There is nothing wrong with having / and /usr on separate partitions; in fact, there are some mild advantages to fine-grained partitioning for folks who pay attention to their filesystem space usage. To elaborate on this: Assuming you have separate /var, /tmp, /usr and /home partitions, the only files that should be on / are: 1. Part of base system not in /usr 2. Kernels (/boot/kernel) 3. root home directory (/root) Therefore the size of / does not grow with time on most systems. It also tends to be independent of what the system is used for, unlike the size of /usr for example. On my systems / is between 1.5 gb to 2 gb depending on overall disk size. /usr is up to 10 gb on desktop systems. A benefit of having / on its own partition is that it becomes much harder to run / out of disk space by accident. Checking out source trees (/usr/ports, /usr/src), building world (/usr/obj), building ports (/usr/ports), running software that uses /usr/local/<programname>/logs for storing its log files, etc. all have potential to write to /usr if you don't have appropriate configuration/symlinks/partitions set up to redirect them to the right places. If your /usr is separate from / then running out of disk space on /usr is usually harmless.
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