# As root, start the gdisk prompt.
gdisk /dev/<DEVICE>

# Enter "recovery and transformation options (experts only)".
Command (? for help): r

# "make hybrid MBR" to begin an interactive session.
Recovery/transformation command (? for help): h

Type from one to three GPT partition numbers, separated by spaces,
to be added to the hybrid MBR, in sequence: 1 2 3 4 ...

Place EFI GPT (0xEE) partition first in MBR (good for GRUB)? (Y/N): N
Creating entry for GPT partition #1 (MBR partition #1)

# Accept the default.
Enter an MBR hex code (default EF):

Set the bootable flag? (Y/N): N

Creating entry for GPT partition #2 (MBR partition #2)

# Accept the default.
Enter an MBR hex code (default EF):

Set the bootable flag? (Y/N): N

Creating entry for GPT partition #3 (MBR partition #3)

# Accept the default.
Enter an MBR hex code (default 82):
Set the bootable flag? (Y/N): Y

# Enter "extra functionality (experts only)".
Recovery/transformation command (? for help): x

# "recompute CHS values in protective/hybrid MBR".
Expert command (? for help): h

# "write table to disk and exit"
Expert command (? for help): w

Final checks complete. About to write GPT data. THIS WILL OVERWRITE EXISTING PARTITIONS!!
Do you want to proceed? (Y/N): Y

# Re-enter
gdisk /dev/<DEVICE>
# "change a partition's name"
# NOTE "name" is not the same as "label".
Command (? for help): c

# As root, start the gdisk prompt.
parted /dev/<DEVICE>

# Use the command "print" to inquire about device information.
(parted) print

# Set the default unit size.
(parted) unit mib

# Create a new disklabel (partition table).
(parted) mklabel gpt

# Create a new partition.
# A value in percent (%) is calculated from the beginning of the device not "start".
(parted) mkpart <primary, extended, logical> <ext2, fat16, fat32, hfs, hfs+, hfsx, linux-swap, NTFS, reiserfs, ufs, btrfs> <0> <0>

# Remove partition.
(parted) rm <PARTITION NUMBER REFERENCE>

# Flag
(parted) set <PARTITION NUMBER REFERENCE> <FLAG> <BOOL>

# Name
# NOTE "name" is not the same as "label".

# Create MBR / BIOS partition.
(parted) mkpart primary 1MiB 2MiB
(parted) name 1 bios
(parted) set 1 bios_grub on
(parted) print

# Expected output of print.
Number  Start    End       Size      File system         Name  Flags
1       1.00MiB  2.00MiB   1.00MiB   <empty; no format>  bios  bios_grub

# Create ESP partition.
# End is 514MiB because the offset is 2MiB from the MBR.
(parted) mkpart primary fat32 2MiB 514MiB
(parted) name 2 esp
(parted) set 2 boot on
(parted) print

# Expected output of print.
Number  Start    End       Size      File system         Name  Flags
1       1.00MiB  2.00MiB   1.00MiB   <empty; no format>  bios  bios_grub
2       2.00MiB  514MiB    512MiB    fat32               esp   boot, esp

# Create swap partition.
# Consider using a 'swap file` instead.
# End is 1538MiB because the offset is 1026MiB ((2 + 512) + 1024).
(parted) mkpart primary linux-swap 514MiB 1538MiB
(parted) name 3 swap
(parted) print

# Expected output of print.
Number  Start    End       Size      File system         Name  Flags
1       1.00MiB  2.00MiB   1.00MiB   <empty; no format>  bios  bios_grub
2       2.00MiB  514MiB    512MiB    fat32               esp   boot, esp
3       514MiB   1538MiB   1024MiB   linux-swap(v1)      swap

# Create the remaining partitions.
# Offset is 1538MiB because (2 + 512 + 1024). End is 100% in order to use the remaining space.
(parted) mkpart primary ext4 1538MiB 100%
(parted) name 4 data
(parted) print

# Expected output of print.
Number  Start    End       Size      File system         Name  Flags
1       1.00MiB  2.00MiB   1.00MiB   <empty; no format>  bios  bios_grub
2       2.00MiB  514MiB    512MiB    fat32               esp   boot, esp
3       514MiB   1538MiB   1024MiB   linux-swap(v1)      swap
4       1538MiB  20479MiB  18941MiB  ext4                data