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freebsd 9.2 unmount file system

Hi.  I have successfully used gpart to increase the size of my file partition.  Now, I need to use growfs to increase the size of the file system.  

In order to grow the root file system the it needs to be unmounted.

How do I boot into freebsd with the file system unmounted so that I can do this?
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hmcnasty
Asked:
hmcnasty
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1 Solution
 
arnoldCommented:
Use a FreeBSD boot disk.
Depending on your partitioning and what you need to unmount.
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hmcnastyAuthor Commented:
Ok.  Thanks. I have the ISO I used to install FreeBSD.  How do I make a boot disk?
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hmcnastyAuthor Commented:
I found this:

 A live CD of FreeBSD is available on the same CD as the main installation program. This is useful for those who are still wondering whether FreeBSD is the right operating system for them and want to test some of the features before installing.

How do I get to the part of the CD I need?
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jlevieCommented:
See the URL above.
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hmcnastyAuthor Commented:
I did.  In fact the excerpt above is from that web page.  It says to boot into the live cd but I don't  know how to do that.
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arnoldCommented:
You boot the system in the live demo mode.  Then you can perform the action of growfs on the real Harddrive.

Presumably you have a backup from before you went through the initial step.

growfs /dev/sda1 if that is the partition you expanded.
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hmcnastyAuthor Commented:
Thanks.  It worked?   I couldn't get my iso to boot into the live demo mode.  So, I downloaded a premade live cd iso and used that.  worked like a charm.

I can't thank you enough.

Wes
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