Date: Wed, 31 Aug 2016 23:12:42 -0500 (CDT) From: "Valeri Galtsev" <galtsev@kicp.uchicago.edu> To: "Mike Clarke" <jmc-freebsd2@milibyte.co.uk> Cc: freebsd-questions@freebsd.org, "Christoph P.U. Kukulies" <kuku@kukulies.org>, "Kevin P. Neal" <kpn@neutralgood.org> Subject: Re: dd blocksize when copying to SSD disk Message-ID: <53060.69.209.232.121.1472703162.squirrel@cosmo.uchicago.edu> In-Reply-To: <2338862.z0bWHT8yXQ@curlew.lan> References: <b2926488-b93b-9586-898e-1ec697529a97@kukulies.org> <20160831184925.GA80454@neutralgood.org> <2338862.z0bWHT8yXQ@curlew.lan>
next in thread | previous in thread | raw e-mail | index | archive | help
On Wed, August 31, 2016 2:40 pm, Mike Clarke wrote: > On Wednesday 31 Aug 2016 14:49:25 Kevin P. Neal wrote: >> On Wed, Aug 31, 2016 at 06:35:28PM +0200, Christoph P.U. Kukulies wrote: >> > I'm about to copy an existing Windows 7 system to an SSD. Source drive >> > is a hard disk of 256 GB, destination drive a 500 GB Samsung SSD 850 >> EVO. >> > >> > >> > >> > Given the fact that unnecessary write operations to SSDs should be >> > avoided I'm thinking about the best strategy to use dd to write to the >> > SSD. >> >> I'm not sure that dd is the best strategy. Using Windows to do the copy >> may be better. > > But the Windows copy command isn't very good at copying the entire system, > it > will fail to copy open files and certain "special" system files. On the > other > hand dd will copy everything in the partition but at the expense of > wasting > space by copying all the unused blocks. Apparently Kevin was suggesting "windows way" of doing this, which is making "image backup", I described that in reply to his post. Valeri > > An alternative would be to use Driveimage XML > <www.runtime.org/driveimage-xml.htm> from within Windows to create a > compressed backup of all used blocks in the system. It's also available on > a > Knopixx live CD <www.runtime.org/data-recovery-live-cd> which, I think, > runs > it under wine so it could probably be run under wine on FreeBSD to create > or > restore a backup of an entire Windows partition. > > -- > Mike Clarke > _______________________________________________ > freebsd-questions@freebsd.org mailing list > https://lists.freebsd.org/mailman/listinfo/freebsd-questions > To unsubscribe, send any mail to > "freebsd-questions-unsubscribe@freebsd.org" > ++++++++++++++++++++++++++++++++++++++++ Valeri Galtsev Sr System Administrator Department of Astronomy and Astrophysics Kavli Institute for Cosmological Physics University of Chicago Phone: 773-702-4247 ++++++++++++++++++++++++++++++++++++++++
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?53060.69.209.232.121.1472703162.squirrel>