Date: Sun, 30 Mar 2003 22:00:47 -0500 From: taxman <taxman@acd.net> To: Grant Peel <grant@thenetnow.com>, <freebsd-questions@FreeBSD.ORG> Subject: Re: dd Message-ID: <200303302200.47877.taxman@acd.net> In-Reply-To: <00fb01c2f720$82e2c8f0$6401a8c0@grant> References: <00fb01c2f720$82e2c8f0$6401a8c0@grant>
next in thread | previous in thread | raw e-mail | index | archive | help
On Sunday 30 March 2003 07:57 pm, Grant Peel wrote: > Hi all, > > I am about to make the trip to shutdown one of our servers and 'dd' the > first SCSI drive to the second. > > from what I have read, and what some of you have kindly offered, I just > kick into single user mode, with only root mounted on the primary drive, ro, I assume > and away we go... > > dd if=/dev/da0 of=/dev/da1 bs=1m That'll copy the data, but you'll want to prep the disk. I've seen recommendations something along the lines of: read data off the whole new disk first dd if=/dev/da1 of=/dev/null then write the data you want on it, then read it off to /dev/null again. Something to the effect of populating the drives on disk bad sector records. There may be more burn in recommended, but I couldn't find anything in the archives. > One last question, the second drive is identical to the first, but should > it be right out odf the box condition, formatted, fdisk'ed partiitioned or > does any of that matter since it will be copies bit for bit? None of that matters for the reason you noted. > TIA! np, Tim
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?200303302200.47877.taxman>