parted: disk_set

1 
1 2.4.2 disk_set
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1 
1  -- Command: disk_set FLAG STATE
1 
1      Changes a flag on the disk.  A flag can be either "on" or "off".
1      Some or all of these flags will be available, depending on what
1      disk label you are using:
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1      'pmbr_boot'
1           (GPT) - this flag enables the boot flag on the GPT's
1           protective MBR partition.
1 
1      The disk's flags are displayed by the print command on the "Disk
1      Flags:" line.  They are also output as the last field of the disk
1      information in machine mode.
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1           (parted) disk_set pmbr_boot on
1 
1      Set the PMBR's boot flag.
1