Date: Thu, 24 Dec 2015 20:52:30 -0600 From: Jake <milios@ccsys.com> To: "Chad Leigh Shire.Net LLC" <chad@shire.net> Cc: David Mehler <dave.mehler@gmail.com>, freebsd-questions <freebsd-questions@freebsd.org> Subject: Re: FreeBSD jail running a Debian or Centos distro Message-ID: <CF647EB6-135F-4994-AD16-D2256A635001@ccsys.com> In-Reply-To: <98024BC5-356B-4F75-B0A6-078599F54472@shire.net> References: <CAPORhP7yRyQug7ybdYhxz%2B4GGTNTzcK2mCUyGQni6CKFrsOuYQ@mail.gmail.com> <98024BC5-356B-4F75-B0A6-078599F54472@shire.net>
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> On Dec 24, 2015, at 6:49 PM, Chad Leigh Shire.Net LLC <chad@shire.net> wro= te: >=20 >=20 >> On Dec 25, 2015, at 8:41 AM, David Mehler <dave.mehler@gmail.com> wrote: >>=20 >> Hello, >>=20 >> Has anyone got a FreeBSD jail to run either a Centos or a Debian >> distro of Linux? >=20 >=20 > Because of how jails work, that is not possible. Jails are like multiple u= ser installations on a single kernel rooted with a facility like an =C3=BCbe= r chroot, in general terms (more complicated than that of course). It is no= t like separate VMs running. It is indeed possible to run the userland portion of a Linux-based distro, m= ore-or-less unmodified, replacing the Linux kernel with FreeBSD's "linuxulat= or" (Linux ABI translation), all inside of a jail, atop a FreeBSD native fil= esystem. A great many things work (user-centric applications), a great many t= hings break (system/network administrative tools). Don't forget about possibly mounting linprocfs, linsysfs and fdescfs inside t= he jail for maximum success. I'm not certain of the current security implica= tions of linprocfs and linsysfs, so don't take my advice without doing furth= er investigation considering your use case. Depending on your use case, it's= worth trying with and without the virtualized network stack options as well= .=
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