J'ai:
kubuntu@kubuntu:~$ sudo fdisk -l
Disk /dev/loop0: 1,7 GiB, 1851285504 bytes, 3615792 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk /dev/sda: 111,8 GiB, 120034123776 bytes, 234441648 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disklabel type: gpt
Disk identifier: 3B6B7013-50BB-4763-B727-B087384B819D
Device Start End Sectors Size Type
/dev/sda1 2048 507903 505856 247M EFI System
/dev/sda2 507904 49336319 48828416 23,3G Linux filesystem
/dev/sda3 49336320 234440703 185104384 88,3G Linux filesystem
Disk /dev/sdb: 7,4 GiB, 7885291520 bytes, 15400960 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disklabel type: dos
Disk identifier: 0x680ca237
Device Boot Start End Sectors Size Id Type
/dev/sdb1 * 0 3803903 3803904 1,8G 0 Empty
/dev/sdb2 3722708 3727635 4928 2,4M ef EFI (FAT-12/16/32)
Disk /dev/sdd: 2,7 TiB, 3000592982016 bytes, 5860533168 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes
Disklabel type: dos
Disk identifier: 0x000e9254
Device Boot Start End Sectors Size Id Type
/dev/sdd1 2048 2930286591 2930284544 1,4T 83 Linux
/dev/sdd2 * 2930286592 2930491391 204800 100M 7 HPFS/NTFS/exFAT
/dev/sdd3 2930491392 4294967295 1364475904 650,6G 7 HPFS/NTFS/exFAT
kubuntu@kubuntu:~$ ^C
kubuntu@kubuntu:~$ sudo gdisk /dev/sdd
GPT fdisk (gdisk) version 1.0.3
Partition table scan:
MBR: MBR only
BSD: not present
APM: not present
GPT: not present
***************************************************************
Found invalid GPT and valid MBR; converting MBR to GPT format
in memory. THIS OPERATION IS POTENTIALLY DESTRUCTIVE! Exit by
typing 'q' if you don't want to convert your MBR partitions
to GPT format!
***************************************************************
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
OK; writing new GUID partition table (GPT) to /dev/sdd.
Warning: The kernel is still using the old partition table.
The new table will be used at the next reboot or after you
run partprobe(8) or kpartx(8)
The operation has completed successfully.
et
kubuntu@kubuntu:~$ sudo fdisk -l
Disk /dev/loop0: 1,7 GiB, 1851285504 bytes, 3615792 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk /dev/sda: 111,8 GiB, 120034123776 bytes, 234441648 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disklabel type: gpt
Disk identifier: 3B6B7013-50BB-4763-B727-B087384B819D
Device Start End Sectors Size Type
/dev/sda1 2048 507903 505856 247M EFI System
/dev/sda2 507904 49336319 48828416 23,3G Linux filesystem
/dev/sda3 49336320 234440703 185104384 88,3G Linux filesystem
Disk /dev/sdb: 7,4 GiB, 7885291520 bytes, 15400960 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disklabel type: dos
Disk identifier: 0x680ca237
Device Boot Start End Sectors Size Id Type
/dev/sdb1 * 0 3803903 3803904 1,8G 0 Empty
/dev/sdb2 3722708 3727635 4928 2,4M ef EFI (FAT-12/16/32)
Disk /dev/sdd: 2,7 TiB, 3000592982016 bytes, 5860533168 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes
Disklabel type: gpt
Disk identifier: 4837C2EA-3B49-49F6-B284-68FC53BD80DD
Device Start End Sectors Size Type
/dev/sdd1 2048 2930286591 2930284544 1,4T Linux filesystem
/dev/sdd2 2930286592 2930491391 204800 100M Microsoft basic data
/dev/sdd3 2930491392 4294967295 1364475904 650,6G Microsoft basic data
kubuntu@kubuntu:~$
Je reboote et je reprends sous W10