Date: Mon, 3 Aug 2015 11:48:53 +0800 From: Julian Elischer <julian@freebsd.org> To: Dirk-Willem van Gulik <dirkx@webweaving.org>, freebsd-hackers@freebsd.org Subject: Re: pivot_root() and FreeBSD Message-ID: <55BEE4A5.40107@freebsd.org> In-Reply-To: <654E1C53-8536-406D-B218-EA6F20848821@webweaving.org> References: <654E1C53-8536-406D-B218-EA6F20848821@webweaving.org>
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On 3/4/15 12:51 AM, Dirk-Willem van Gulik wrote: > I am trying to do, in effect an PXE boot/install on a local volume - and would like the machine to cut over into normal running without a reboot*. > > So effectively I would like to do the equivalent of pivot_root() and perhaps something special for init(8), and then jettison md, nfs and what not. > > Is there any way to do this on 10.1 or -current ? Or has anyone recently done work on Adrian Steinmann his 'Pivot Root for BSD’** ? > > Thanks, there is SOME work going on on a similar thing.. It was in the recent project status. https://www.freebsd.org/news/status/report-2015-04-2015-06.html#Root-Remount Also have you tried simply using a small memory filesystem loaded with the kernel? > > Dw. > > > *: the scenario is a set of tests and generation scripts during which there should be no reliance on the network - and where we’d like to avoid a reboot given the state we are bringing the disks and a USB device into.. Thus precluding an NFS mounted install during the test -and- precluding a reboot post install. Yet it is very desirable to have a powercycle use PXE to create a known baseline. > **: http://www.netbsd.org/gallery/presentations/ast/2012_EuroBSDCon/Talk_PivotRoot4BSD.pdf > 2012-10-17: Pivot Root (Kernel Module for NetBSD 6.x 20121017) / http://www.netbsd.org/~ast/patches/pivot_root.tbz_20121017 > > _______________________________________________ > freebsd-hackers@freebsd.org mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-hackers > To unsubscribe, send any mail to "freebsd-hackers-unsubscribe@freebsd.org" > > >
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