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Old 01-20-2010, 10:17 AM   #1
gdanko
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cloning a drive with dd


I have a Shuttle XPC with 3 drives. /dev/sda is a 320GB SATA drive with a basic installation. Two partitions, a swap and the rest is on /. The other two drives are 1.5TB SATA configured as a software mirror as /dev/md0.

I want to use dd to clone the 320GB boot/OS drive to a 750GB SATA I have at home. Last night I put the 750 in a USB enclosure and at about 6:00 PM fired off: dd if=/dev/sda of=/dev/sdd

It's now 7:16 AM and the dd is *STILL* going. Is this unusually long to clone the drive? Is there any way to check the progress or a way to launch dd with a progress indicator?
 
Old 01-20-2010, 11:46 AM   #2
Tinkster
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First thing: you don't really want to overwrite a 750 like that.
Just dd the partition across. 2nd: use a sensible blocksize, by
default dd will try to write the copy byte by byte which makes no
sense on a block-device (bs=2048 or bs=4096 are a good starting
point). 3rd: read the dd man-page. It gives you an EXAMPLE on how
to find out what kind of progress it has made.


Cheers,
Tink
 
Old 01-20-2010, 12:23 PM   #3
gdanko
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1) So I should partition the target disk first and then dd the partitions?
2) Check
3) Will do
 
Old 01-20-2010, 02:11 PM   #4
Tinkster
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Quote:
Originally Posted by gdanko View Post
1) So I should partition the target disk first and then dd the partitions?
You could - that should save you the need to fix the
partition table afterwards. Make sure that the partition
on the new disk shares the same metrics.

Quote:
Originally Posted by gdanko View Post
3) Will do
Sweet :}


Cheers,
Tink
 
  


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