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Re: updating a jail

> I need to add this ability but i don't want to take things down to do it.

Yes you can just do the build world and the jail update. The only time this will REALLY bit you in the arse is if your /usr/src tree is not in sync with your running kernel...

If you downloaded the /usr/src and built/installed a kernel and the world, then you are more or less safe to reinstall the world. If the kernel is OLD, and the /usr/src newer, you may get some 'odd' behavior. To be safe, rebuild your kernel as well, install it, then if your machine crashes, at least the 'new' kernel will be ready to go when the box reboots.

Good luck,