отображать или управлять таблицей разделов диска (display or manipulate a disk partition table)
EMPTY DISK LABEL
sfdisk
does not create partition table without partitions by
default. The lines with partitions are expected in the script by
default. The empty partition table has to be explicitly requested
by "label: <name>" script header line without any partitions
lines. For example:
echo 'label: gpt' | sfdisk /dev/sdb
creates empty GPT partition table. Note that the --append
disables this feature.