Date: Fri, 23 Mar 2018 17:26:19 +0100 From: Ondra Knezour <knezour@weboutsourcing.cz> To: freebsd-hackers@freebsd.org Subject: Re: Easiest way to get a small VM disk image? Message-ID: <54b43b2c-4815-2495-33ab-b745f7d02571@weboutsourcing.cz> In-Reply-To: <CAO7yDHrMqj%2B2r23zaHRP9YyvX9DBmV5WnpOFZGf2NtayQ%2BAc-Q@mail.gmail.com> References: <CAO7yDHrMqj%2B2r23zaHRP9YyvX9DBmV5WnpOFZGf2NtayQ%2BAc-Q@mail.gmail.com>
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This is a cryptographically signed message in MIME format. --------------ms000501030900060803080708 Content-Type: text/plain; charset=iso-8859-2; format=flowed Content-Language: cs Content-Transfer-Encoding: quoted-printable Dne 23.03.2018 v 16:42 Kamila Sou=E8kov=E1 napsal(a): > [...] > The VM images available in the official downloads have a virtual size o= f > 20GB. Therefore I need to somehow build my own image (or shrink the > existing ones). Here are the approaches I have thought about: >=20 > [...] > - Create an empty image, boot it in a VM and install from an installati= on > ISO. Problem: not sure how to automate; might not get 1:1 parity with t= he > official VM image This is way I use. Create VM, install what I want, use as template. For=20 automation, search firstboot in rc(8) [1] - generally you may want to=20 delete keys for the sshd daemon to recreate new ones for each VM, maybe=20 set hostname and/or IP addresses if not provided by DHCP etc. > - Somehow shrink the existing image. Problem: How? AFAIK there is no way to shrink a UFS partition. Only create new one,=20 smaller and dump & restore. > - Find out how the official images are built and do that with a smaller= > size. This is where this list comes in :-) See the FreeBSD Release Engineering article [2] and release(7) [3] man=20 page. Search VMFORMATS and/or CLOUDWARE on the later one. There are also other tools which may give you some insight how can be=20 FreeBSD image building customized, search Google for nanobsd, picobsd,=20 chrochet, freebsd wifi build >=20 > Which (of these, or any other) is the easiest way to get a small image?= [1]=20 https://www.freebsd.org/cgi/man.cgi?query=3Drc&apropos=3D0&sektion=3D8&ma= npath=3DFreeBSD+11.1-RELEASE&arch=3Ddefault&format=3Dhtml [2]https://www.freebsd.org/doc/en_US.ISO8859-1/articles/releng/article.ht= ml#release-build [3]=20 https://www.freebsd.org/cgi/man.cgi?query=3Drelease&apropos=3D0&sektion=3D= 0&manpath=3DFreeBSD+11.1-RELEASE&arch=3Ddefault&format=3Dhtml#end --=20 S pozdravem Ondra Knezour --------------ms000501030900060803080708 Content-Type: application/pkcs7-signature; name="smime.p7s" Content-Transfer-Encoding: base64 Content-Disposition: attachment; filename="smime.p7s" Content-Description: Elektronicky podpis S/MIME MIAGCSqGSIb3DQEHAqCAMIACAQExDzANBglghkgBZQMEAgEFADCABgkqhkiG9w0BBwEAAKCC 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