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Cloning a partition table

From: Serge Wroclawski
Subject: Cloning a partition table
Date: Fri, 20 Aug 2010 10:06:17 -0400

Hi all,

In my environment, we have large disks and for simplicity, use GPT on
all our machines.

Occasionally a disk fails and we must replace it. Using cfdisk and MBR
this would be a simple matter of doing a:

sfdisk -d DISK1 | sfdisk DISK2

in order to copy the disk's partition table from one disk to the
other, and then we can use the RAID tools to put the disk back in

sfdisk doesn't know GPT, but luckily parted does.

Unfortunately, this functionality of being able to copy the partition
table from one device to the other appears missing, as does the
workaround (as above) of being able to spit out and consume the same
format of output in order to achieve the same result.

Can someone please suggest either a way to accomplish the same result
or add this to the list of enhancements to the next version?

Thank you,

- Serge

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