Date: Sat, 7 Apr 2007 14:25:09 +0100 From: Ceri Davies <ceri@submonkey.net> To: Pawel Jakub Dawidek <pjd@FreeBSD.org> Cc: freebsd-arch@FreeBSD.org Subject: Re: Host ID. Message-ID: <20070407132509.GJ90410@submonkey.net> In-Reply-To: <20070407120656.GD63916@garage.freebsd.pl> References: <20070407120656.GD63916@garage.freebsd.pl>
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--u3bvv0EcKsvvYeex Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Sat, Apr 07, 2007 at 02:06:56PM +0200, Pawel Jakub Dawidek wrote: > Hi. >=20 > After initial discussion on IRC, I'd like to propose an addition... > I want to use it with ZFS, but I thought it may be useful in general, so > here it goes: >=20 > I'd like to assign a unique ID to the system on first boot. >=20 > When system starts, /etc/rc.d/hostid script checks if /hostid file > exists, if it doesn't, it creates it via 'uuidgen > /hostid'. >=20 > It will also set kern.hostuuid sysctl to this value and first four bytes > of MD5(kern.hostuuid) will be stored in kern.hostid. It will allow to > use gethostid(3). >=20 > If root file system is read-only, different uuid will be genrated on > each boot. Not sure if anything better can be done here. Can we put it in /etc ? That would allow setups like nanobsd to benefit too. Ceri --=20 That must be wonderful! I don't understand it at all. -- Moliere --u3bvv0EcKsvvYeex Content-Type: application/pgp-signature Content-Disposition: inline -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.6 (FreeBSD) iD8DBQFGF5u1ocfcwTS3JF8RAlu1AKCrRFTlw4iVtSoBDLhAro2L94OELQCgx0rD cS49bap1IKM6k3J3cQvD6Po= =zsAG -----END PGP SIGNATURE----- --u3bvv0EcKsvvYeex--
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