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How to increase filesystem size or add new filesystem to /usr?

abel asked
Medium Priority
Last Modified: 2013-12-06
Hi all,

Short question: what is the easiest way to increase size of a mounted volume to 8GB and what steps are needed.

Being new to FreeBSD I need some hands on step by step instructions, I don't seem to understand the manpages well because of too many too unfamiliar terms.

While installing KDE 4.2 (giving me many headaches, but that's a different story) the installation aborted because of not enough disk space. The FreeBSD system is inside a VMWare host and I can assign as much disk space as needed, but how do I do that? Can I use growfs? If so, how do I mount / unmount? I'd like to increase to 8GB, how do I do so? Can I add another Filesystem (partition?) to a mounted volume (meaning: /usr)? If yes, how?

Because I might not be using the right terms, I added a screenshot. The /usr entry is the one I want to increase.

Thanks for any help!
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Top Expert 2009


Thanks for your answer. The first link only seems to explain that mounting additional space is not possible to an existing mount. The second is about disk organization of which I'm aware. I'm after a hands-on step-by-step to increase my disk space. On Windows (or Linux) a third party tool like PartitionMagic should do, but I was under the impression that on well designed unix/bsd based systems such thing would not be necessary. Why else is there the growfs command?
Top Expert 2009


It can't be that hard, can it? Isn't there anybody around with sufficient freebsd experience that can show me how to do this?

Increased points to 500.
Maciej Ssysadmin
As far as I know, you can't do it on mounted filesystem.
If you do it on mounted fs (from man growfs) "your system may panic and you will not be able to use the file system any longer". I think it's not worth trying ;)
Top Expert 2009


Thanks for your answer, oklit. If this is not the way to do it, what steps (hope they're quite trivial) can I undertake to enlarge the partition? Or can I unmount a part, use growfs and remount, even if it is in use (probably not)?

In Windows I would use PartitionMagic or something along those lines. How do others deal with this?
Top Expert 2009


closing q. though the answer was not amongst them, I decided to go for a reinstall which worked well enough.
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