Convert a capable Seagate drive to 4Kn

A short note on supported Seagate HDDs 512e/4Kn drive conversion process.

Download the latest version of openSeaChest

./openSeaChest_Info --scan

# Confirm that you have selected the desired drive and it is currently formatted as 512e
./openSeaChest_Info -d /dev/sgX --showSupportedFormats

# Reformat the drive as 4Kn
# Give the operation some time to finish
./openSeaChest_Format -d /dev/sgX --setSectorSize=4096 --confirm this-will-erase-data-and-may-render-the-drive-inoperable

# Confirm the drive conversion was successful
./openSeaChest_Info -d /dev/sgX --showSupportedFormats