On Mon, Feb 8, 2010 at 3:15 PM, Jason <jhelf...@e-e.com> wrote: > Use this as a starting point >> >> http://www.freebsd.org/doc/handbook/jails.html >> >> Anyways, host and jail need to run the exact same kernel. Normally I'll >> build my kernel and install it into the base as well as each individual >> jail >> so everything is consistent. >> > > Why do they need to run the exact same kernel? I didn't see that anywhere > in > the document, unless I missed it. > > thanks >
They aren't a full form of visualization in terms of having a hypervisor, as it is dependent the system calls coming from a jail being the same calls that are present in the host kernel. Mismatched kernel version could break that mapping. Which is also why jails are a faster form of virtualization because all the call mappings are 1:1. At least that's my understanding. -- Adam Vande More _______________________________________________ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to "freebsd-questions-unsubscr...@freebsd.org"
