Comment # 2 on bug 1164907 from Ruediger Oertel

in interactive mode, it just kills the type flag:

(parted) print                                                            
Model: Linux device-mapper (multipath) (dm)
Disk /dev/mapper/3600c0ff0002612a8b50de45c01000000: 550GB
Sector size (logical/physical): 512B/512B
Partition Table: msdos
Disk Flags: 

Number  Start   End     Size    Type     File system  Flags
 1      1049kB  28.8GB  28.8GB  primary               type=83

(parted) set 1 type 0x82                                                  
(parted) print                                                            
Model: Linux device-mapper (multipath) (dm)
Disk /dev/mapper/3600c0ff0002612a8b50de45c01000000: 550GB
Sector size (logical/physical): 512B/512B
Partition Table: msdos
Disk Flags: 

Number  Start   End     Size    Type     File system  Flags
 1      1049kB  28.8GB  28.8GB  primary
(parted) set 1 type 130                                                   
(parted) print                                                            
Model: Linux device-mapper (multipath) (dm)
Disk /dev/mapper/3600c0ff0002612a8b50de45c01000000: 550GB
Sector size (logical/physical): 512B/512B
Partition Table: msdos
Disk Flags: 

Number  Start   End     Size    Type     File system  Flags
 1      1049kB  28.8GB  28.8GB  primary               type=82