Date: Tue, 4 Apr 2006 11:12:03 +0100 From: "Khaled Hussain" <khaled@ipbill.com> To: "M. Warner Losh" <imp@bsdimp.com> Cc: FreeBSD Hackers <freebsd-hackers@freebsd.org> Subject: RE: cloning a FreeBSD HDD Message-ID: <HCEOIFALKKLBLJPENPNOGENDCAAA.khaled@ipbill.com> In-Reply-To: <20060328.210412.18287651.imp@bsdimp.com>
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Hi guys, 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 / Also, how can I find out which /boot/boot# file a freebsd system is using by default? Kind Regards Khaled > -----Original Message----- > From: owner-freebsd-hackers@freebsd.org > [mailto:owner-freebsd-hackers@freebsd.org]On Behalf Of M. Warner Losh > Sent: 29 March 2006 05:04 > To: eksffa@freebsdbrasil.com.br > Cc: freebsd-hackers@freebsd.org > Subject: Re: cloning a FreeBSD HDD > > > In message: <4429972C.5030806@freebsdbrasil.com.br> > Patrick Tracanelli <eksffa@freebsdbrasil.com.br> writes: > : > : >> I heard its faster if you use two dd's; i.e: > : >> > : >> # dd if=/dev/ad0 bs=64k | dd of=/dev/ad1 bs=64k > : >> > : >> allowing read and write to proceed in parallel. > : > > : > > : > that's what ddd and 'team' are for. > : > I don't know if ddd is in the ports as it may clash inname with teh > : > debugger ddd > : > They internally fork and use several processes synchronised > in some manner. > : > : Isn't dump+restore and a couple of fdisk+bsdlabel trick to copy the > : source partitioning a better choice to "clone" this HDD? > > Yes. That's what I *ALWAYS* do, because hard drives are never the > exact same size. > > fdisk -I makes the fdisk part easy. bsdlabel -R makes the disklabel > cloning relatively painless. > > dump + restore is slow but reliabe. > > Warner > _______________________________________________ > 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" > > ______________________________________________________________________ > This email has been scanned by the MessageLabs Email Security System. > For more information please visit http://www.messagelabs.com/email > ______________________________________________________________________ >
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