On a non GPT partition table I can do
sfdisk -d /dev/sda | sfdisk /dev/sdb.
sfdisk doesn’t support GPT partition tables. What can I use instead?
Solution for GPT:
Install gdisk which is available in the Ubuntu Universe repositories.
Then use the
sgdisk command (man page here) to replicate the partition table:
sgdisk /dev/sdX -R /dev/sdY sgdisk -G /dev/sdY
The first command copies the partition table of
sdY (be careful not to mix these up). The second command randomizes the GUID on the disk and all the partitions. This is only necessary if the disks are to be used in the same machine, otherwise it’s unnecessary.