Date: Wed, 5 Apr 2006 14:53:55 -0400 From: John Baldwin <jhb@freebsd.org> To: freebsd-hackers@freebsd.org Cc: Khaled Hussain <khaled@ipbill.com> Subject: Re: cloning a FreeBSD HDD Message-ID: <200604051453.57372.jhb@freebsd.org> In-Reply-To: <20060404104031.GI683@turion.vk2pj.dyndns.org> References: <20060328.210412.18287651.imp@bsdimp.com> <HCEOIFALKKLBLJPENPNOGENDCAAA.khaled@ipbill.com> <20060404104031.GI683@turion.vk2pj.dyndns.org>
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On Tuesday 04 April 2006 06:40, Peter Jeremy wrote: > On Tue, 2006-Apr-04 11:12:03 +0100, Khaled Hussain wrote: > >Why does everyone talk about dump+restore as a pair? I thought it was > >possible just to dump a filesystem to a different hard disk i.e. > >dump -0a -f /dev/ad2 / > > It is. But /dev/ad2 will have a dumpfile on it, not a filesystem. > The only thing that can then read /dev/ad2 is restore. > > >Also, how can I find out which /boot/boot# file a freebsd system is using by > >default? > > None of the ones in the filesystem - these files are embedded into the > beginning of the hard disk. > > One of boot0, boot0sio or mbr is located in absolute sector 0 of the disk. > boot1 is located in sector 0 of the bootable slice > boot2 is located in the (I think) sectors 1-15 of partition a. Actually, boot1 + boot2 occupy sectors 0,2-15 of the bootable slice (the a partition starts at the start of the slice to be confusing) with the actual disklabel table in sector 1 of the slice. -- John Baldwin <jhb@FreeBSD.org> <>< http://www.FreeBSD.org/~jhb/ "Power Users Use the Power to Serve" = http://www.FreeBSD.org
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