[[!toc levels=2]] GPT only, single partition ========================== $ gdisk /dev/sdb 1. o create a new empty GUID partition table (GPT) 2. n add a new partition 3. Partition number (1-128, default 1): 1 4. First sector (34-3891166, default = 34) or {+-}size{KMGTP}: Information: Moved requested sector from 34 to 2048 in order to align on 2048-sector boundaries. Use 'l' on the experts' menu to adjust alignment 5. Last sector (2048-3891166, default = 3891166) or {+-}size{KMGTP}: Current type is 'Linux/Windows data' 6. Hex code or GUID (L to show codes, Enter = 0700): Changed type of partition to 'Linux/Windows data' 7. w write table to disk and exit partprobe mkfs.vfat /dev/sdb1 Result: Windows says the disk is not formated. GPT + Hybrid MBR, single partition ================================== $ gdisk /dev/sdb 1. o create a new empty GUID partition table (GPT) 2. x extra functionality (experts only) 3. l set the sector alignment value 4. Enter the sector alignment value (1-65536, default = 2048): 63 5. m return to main menu 6. n add a new partition 7. Partition number (1-128, default 1): 1 8. First sector (34-3891166, default = 34) or {+-}size{KMGTP}: 63 9. Last sector (2048-3891166, default = 3891166) or {+-}size{KMGTP}: Current type is 'Linux/Windows data' 10. Hex code or GUID (L to show codes, Enter = 0700): Changed type of partition to 'Linux/Windows data' 11. r recovery and transformation options (experts only) 12. h make hybrid MBR 13. Type from one to three GPT partition numbers, separated by spaces, to be added to the hybrid MBR, in sequence: 1 14. Place EFI GPT (0xEE) partition first in MBR (good for GRUB)? (Y/N): N 15. Enter an MBR hex code (default 07): 0c 16. Set the bootable flag? (Y/N): N 17. Unused partition space(s) found. Use one to protect more partitions? (Y/N): N 18. w write table to disk and exit partprobe mkfs.vfat /dev/sdb1 Result: in the MBR, the first partition is the FAT32 one, which is detected and mounted by Windows. GPT + Hybrid MBR, single bootable partition =========================================== Same steps as previously, but the bootable flag is set at step 15. After using liveusb-creator, the stick boots. GPT + Hybrid MBR, 3 partitions, 2nd one is bootable =================================================== $ gdisk /dev/sdb 1. o create a new empty GUID partition table (GPT) 2. x extra functionality (experts only) 3. l set the sector alignment value 4. Enter the sector alignment value (1-65536, default = 2048): 63 5. m return to main menu 6. n add a new partition 7. Partition number (1-128, default 1): 1 8. First sector (34-3891166, default = 34) or {+-}size{KMGTP}: 63 9. Last sector (2048-3891166, default = 3891166) or {+-}size{KMGTP}: +64M 10. Hex code or GUID (L to show codes, Enter = 0700): Changed type of partition to 'Linux/Windows data' 11. x extra functionality (experts only) 12. l set the sector alignment value 13. Enter the sector alignment value (1-65536, default = 2048): 2048 14. m return to main menu 15. n add a new partition 16. Partition number (2-128, default 2): 2 17. First sector (34-3891166, default = 131135) or {+-}size{KMGTP}: Information: Moved requested sector from 131135 to 133120 in order to align on 2048-sector boundaries. 18. Last sector (133120-3891166, default = 3891166) or {+-}size{KMGTP}: +1500M 19. Hex code or GUID (L to show codes, Enter = 0700): 8301 Changed type of partition to 'Linux reserved' 20. n add a new partition 21. Partition number (3-128, default 3): 3 22. First sector (34-3891166, default = 3205120) or {+-}size{KMGTP}: 23. Last sector (3205120-3891166, default = 3891166) or {+-}size{KMGTP}: 24. Hex code or GUID (L to show codes, Enter = 0700): 8301 Changed type of partition to 'Linux reserved' 25. x extra functionality (experts only) 26. a set attributes 27. Partition number (1-3): 2 28. Toggle which attribute field (0-63, 64 or <Enter> to exit): 0 29. Toggle which attribute field (0-63, 64 or <Enter> to exit): 2 30. Toggle which attribute field (0-63, 64 or <Enter> to exit): 60 31. Toggle which attribute field (0-63, 64 or <Enter> to exit): 62 32. Toggle which attribute field (0-63, 64 or <Enter> to exit): 63 Attribute value is D000000000000005. Set fields are: 0 (system partition) 2 (legacy BIOS bootable) 60 (read-only) 62 (hidden) 63 (do not automount) 33. Toggle which attribute field (0-63, 64 or <Enter> to exit): 34. a set attributes 35. Partition number (1-3): 3 36. Toggle which attribute field (0-63, 64 or <Enter> to exit): 63 Attribute value is 8000000000000000. Set fields are: 63 (do not automount) 37. Toggle which attribute field (0-63, 64 or <Enter> to exit): 38. r recovery and transformation options (experts only) 39. h make hybrid MBR 40. Type from one to three GPT partition numbers, separated by spaces, to be added to the hybrid MBR, in sequence: 1 2 41. Place EFI GPT (0xEE) partition first in MBR (good for GRUB)? (Y/N): N Creating entry for GPT partition #1 (MBR partition #1) 42. Enter an MBR hex code (default 07): 0c 43. Set the bootable flag? (Y/N): N Creating entry for GPT partition #2 (MBR partition #2) 44. Enter an MBR hex code (default 83): 1c 45. Set the bootable flag? (Y/N): Y 46. Unused partition space(s) found. Use one to protect more partitions? (Y/N): Y 47. Enter an MBR hex code (EE is EFI GPT, but may confuse MacOS): 0a 48. w write table to disk and exit partprobe mkfs.vfat /dev/sdb1 mkfs.vfat /dev/sdb2 Use of liveusb-creator to install an ISO on `/dev/sdb2`. GPT + protective MBR, two partitions ==================================== $ /sbin/sgdisk \ --clear \ # create a new partition table --new=1:0:+1500M \ # new partition 1, starts at begining, 1500 MiB size --typecode=1:8301 \ # part 1, set type 8301 (Linux reserved) --attributes=1:set:0 \ # part 1, set flag: system partition --attributes=1:set:2 \ # part 1, set flag: legacy BIOS bootable --attributes=1:set:60 \ # part 1, set flag: read-only --attributes=1:set:62 \ # part 1, set flag: hidden --attributes=1:set:63 \ # part 1, set flag: do not automount --change-name=1:Linux \ # part 1, change label to 'Linux' --largest-new=2 \ # new partition, starts at begining, max size --typecode=2:8301 \ # part 2, set type 8301 (Linux reserved) --attributes=1:set:62 \ # part 2, set flag: hidden --attributes=1:set:63 \ # part 2, set flag: do not automount --change-name=2:persistent \ # part 2, change label to 'persistent' /dev/sdb Make the partition accessible to Windows, for the time of the installation: <<EOF sed -e 's/^\([^#]*\) \+# .*$/\1/' | /sbin/gdisk /dev/sdb r # recovery and transformation options h # make hybrid MBR 1 # add first partition N # no EFI GPT (0xEE) partition 0c # partition type (Win95 FAT32 LBA) N # don't set the bootable flag N # no protective partition w # write table to disk and exit Y # proceed, possibly destroying data EOF Once the install has been done, lock things up: <<EOF sed -e 's/^\([^#]*\) \+# .*$/\1/' | /sbin/gdisk /dev/sdb x # extra functionality n # create a new protective MBR w # write table to disk and exit Y # proceed, possibly destroying data EOF

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