WIP: sfdisk implementation

config/shared/errors/errors.go

@@ -87,6 +87,8 @@ var (
 	ErrPathConflictsSystemd      = errors.New("path conflicts with systemd unit or dropin")
 	ErrCexWithClevis             = errors.New("cannot use cex with clevis")
 	ErrCexWithKeyFile            = errors.New("cannot use key file with cex")
+	ErrBadSfdiskPretend          = errors.New("sfdisk had unexpected output while pretending partition configuration on device")
+	ErrBadSfdiskCommit           = errors.New("sfdisk had unexpected output while committing partition configuration to device")
 
 	// Systemd section errors
 	ErrInvalidSystemdExt       = errors.New("invalid systemd unit extension")

internal/distro/distro.go

@@ -38,6 +38,7 @@ var (
 	mountCmd     = "mount"
 	partxCmd     = "partx"
 	sgdiskCmd    = "sgdisk"
+	sfdiskCmd    = "sfdisk"
 	modprobeCmd  = "modprobe"
 	udevadmCmd   = "udevadm"
 	usermodCmd   = "usermod"
@@ -95,6 +96,7 @@ func MdadmCmd() string     { return mdadmCmd }
 func MountCmd() string     { return mountCmd }
 func PartxCmd() string     { return partxCmd }
 func SgdiskCmd() string    { return sgdiskCmd }
+func SfdiskCmd() string    { return sfdiskCmd }
 func ModprobeCmd() string  { return modprobeCmd }
 func UdevadmCmd() string   { return udevadmCmd }
 func UsermodCmd() string   { return usermodCmd }