+1 for Clonezilla. I keep it on an old usb stick, boot from it and clone the drives. I use it fairly frequently and keep copies of machine drives so if I lose one I can just put in the clone and continue on my way. Also, as Sarah mentions, not only is dd copying every bit (even blanks) and taking a long time to do it, you should be booted off a third disk anyway to avoid the problem of copying live, changing data. Often this doesn’t cause a problem, but it CAN cause problems and I’ve had issues related to it in the past.
-Tom > On Feb 20, 2016, at 9:23 AM, Sarah Armstrong <sarahj.armstron...@gmail.com> > wrote: > > clonezillia is better for a number of reasons , it may seem complex but > you'll soon get the hang of it > the problem with using dd is it will also copy temp files, temp drive and > your uuid's to the cloned drive , amongst other things > you also dont want to be using the drive that your copying ... ( might > sound obvious now ) > > also if your copying to drives of different sizes dd wont like it , > clonezilla will only copy whats needed and not all the blanks as dd will > just , well copy everything blind . clonezilla works as a live cd , so your > not running the drive your copying . > > dd works fine dont get me wrong , ok if it's your own machines , but if > it's for clients then i'd use clonezilla . > and if the drives are large like 1tb or 3 then look for around 6 hours of > doing nothing . > > just my 2 pence worth JT . > > personally i use rdrive image (http://www.drive-image.com ) & clonezilla > depends on how much of a rush i'm in > > > > > On 20 February 2016 at 13:48, John Thornton <j...@gnipsel.com> wrote: > >> I looked at Clonezilla and it seems way more complicated than using dd. >> >> Thanks for the idea. >> >> JT >> >> On 2/20/2016 5:51 AM, Alex Chiosso wrote: >>> Try to use Clonezilla. ;-) >>> >>> ----- Messaggio originale ----- >>> Da: "John Thornton" <j...@gnipsel.com> >>> Inviato: 20/02/2016 12:38 >>> A: "EMC Mailing List" <emc-users@lists.sourceforge.net> >>> Oggetto: [Emc-users] Clone a HD >>> >>> I see two ways to clone a HD on the web one using dd and one using tar. >>> >>> Boot from the live cd. Mount your destination media to (say) /mnt. >>> >>> dd if=/dev/sd whatever of=/mnt/mybackup.ddimg >>> >>> In this case what do they mean by mount? >>> >>> Mount the source to /mnt, mount the destination to /home (say) >>> >>> tar cvfpz /home/mybackup.tar.gz /mnt >>> >>> does this tar create a copy of the whole disk? >>> >>> Thanks >>> JT >>> >>> >> ------------------------------------------------------------------------------ >>> Site24x7 APM Insight: Get Deep Visibility into Application Performance >>> APM + Mobile APM + RUM: Monitor 3 App instances at just $35/Month >>> Monitor end-to-end web transactions and take corrective actions now >>> Troubleshoot faster and improve end-user experience. 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