GPT

Note: this only converts. Booting will be broken.

gdisk /dev/sda
w

Partition_type_GUIDs

• OS independent
  • Unused entry 00000000-0000-0000-0000-000000000000
  • EFI System partition C12A7328-F81F-11D2-BA4B-00A0C93EC93B
  • BIOS boot partition 21686148-6449-6E6F-744E-656564454649
• Windows
  • Basic data partition (FAT) EBD0A0A2-B9E5-4433-87C0-68B6B72699C7
• Linux
  • Linux root (ARM-64) B921B045-1DF0-41C3-AF44-4C6F280D3FAE
  • Linux root (x86-64) 4F68BCE3-E8CD-4DB1-96E7-FBCAF984B709
  • Linux filesystem data 0FC63DAF-8483-4772-8E79-3D69D8477DE4
  • /home partition 933AC7E1-2EB4-4F13-B844-0E14E2AEf915
  • ??? /var 4D21B016-B534-45C2-A9fB-5C16E091FD2D