mdadm - please re-open #500309

[martin f krafft]

also sprach Toni Mueller <support at oeko.net> [2010.01.27.1533 +1300]:
> I initialized /dev/sda by using this simple command:
> 
> # dd if=/dev/sdb of=/dev/sda count=1 bs=512
> 
> after which fdisk -l /dev/sda and fdisk -l /dev/sdb both showed
> exactly the same partitioning for both disks.

You have to let the kernel know about the changed partitions:

  sfdisk -R /dev/sda

Also, in the future I suggest to use sfdisk to clone partition
tables:

  sfdisk -d /dev/sdb | sfdisk /dev/sda

because that would have done the above automatically.

-- 
 .''`.   martin f. krafft <madduck at d.o>      Related projects:
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