Date: Tue, 29 Oct 2002 16:21:39 -0600 From: "Jack L. Stone" <jackstone@sage-one.net> To: Matthew Dillon <dillon@apollo.backplane.com>, Mike Hogsett <hogsett@csl.sri.com> Cc: "Mr. Darren" <darren780@yahoo.com>, freebsd <freebsd-stable@FreeBSD.ORG> Subject: Re: copy harddrive image Message-ID: <3.0.5.32.20021029162139.010ec928@mail.sage-one.net> In-Reply-To: <200210292118.g9TLIt49010760@apollo.backplane.com> References: <200210292048.g9TKmG1J015723@axp.csl.sri.com>
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At 01:18 PM 10.29.2002 -0800, Matthew Dillon wrote: > >:> I have had a harddrive which is doing the SMART imminent failure thing >:> for the last little while. I had western digital send me a new drive so >:> I could copy all my data over. I am wondering what the best way to do >:> this is? "dd if=ad0 of=ad1" doesn't seem to be like a good method.. >:> any input? >: >:That method has worked great for me in the past. But I have usually done >:this with brand new disks (source being freshly installed). Also no >:partitions on either disk were mounted. >: >:I would add the argument bs=131072 >: >: - Mike > > What I usually do is fdisk and disklabel the new disk, which gives > me a chance to adjust the size of the partitions. I then dd each > partition across (e.g. dd if=ad0s1a of=ad1s1a) for those partitions > whos sizes didn't change, fsck them after I'm done, and use 'cpdup' > (/usr/ports/sysutils/cpdup) to copy the rest via mounts. > > The advantage of using cpdup is that you can do it on a live system, > take the system down to single user, do cpdup again to catch > whatever changes from the first run (usually very little, so cpdup > only takes a few seconds the second time), then power off, swap the > drives, and reboot. Total actual down time: 5 minutes or less. > > DDing the entire disk works too, at least if the system is idle. Be > sure to fsck the destination drive though before mounting it. > > -Matt > Hi, Matt: I've never tried your "cpdup" program I just installed the port to try it. ....and wonder: 1) why you prefer it to ole dump/restore? 2) what would be the typical syntax of the line command you use to copy over the ad0s1f to ad1s1f partition for example. I like your dd/cpdup combo approach and would like to try it on a test box. Best regards, Jack L. Stone, Administrator SageOne Net http://www.sage-one.net jackstone@sage-one.net To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-stable" in the body of the message
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