I have HDD disk with two NTFS partitions, which I created in Windows 10, but Ubuntu sees only one. Disks utility shows both partitions as one.
Disk model: ST2000DM008-2FR102
Windows 10 is on a different disk
sudo fdisk -l
Disk /dev/loop0: 73,9 MiB, 77492224 bytes, 151352 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/loop1: 4 KiB, 4096 bytes, 8 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/loop2: 240,51 MiB, 252190720 bytes, 492560 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/loop3: 97,71 MiB, 102453248 bytes, 200104 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/loop4: 11,2 MiB, 11747328 bytes, 22944 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/loop5: 496,98 MiB, 521121792 bytes, 1017816 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/loop6: 91,69 MiB, 96141312 bytes, 187776 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/loop7: 10,52 MiB, 11026432 bytes, 21536 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: 1,82 TiB, 2000398934016 bytes, 3907029168 sectors
Disk model: ST2000DM008-2FR1
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: 4C943EA5-B9A8-45A4-A513-8177075DD757
Device Start End Sectors Size Type
/dev/sda1 34 2081 2048 1M Microsoft LDM metadata
/dev/sda2 2082 32767 30686 15M Microsoft reserved
/dev/sda3 32768 3907029134 3906996367 1,8T Microsoft LDM data
Partition 1 does not start on physical sector boundary.
Partition 2 does not start on physical sector boundary.
Disk /dev/sdb: 223,57 GiB, 240056327680 bytes, 468860015 sectors
Disk model: KINGSTON SA400S3
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: A0719CCE-0ECA-49F7-8B14-BEB2C372533A
Device Start End Sectors Size Type
/dev/sdb1 2048 206847 204800 100M EFI System
/dev/sdb2 206848 239615 32768 16M Microsoft reserved
/dev/sdb3 239616 365398015 365158400 174,1G Microsoft basic data
/dev/sdb4 467798016 468856831 1058816 517M Windows recovery environment
/dev/sdb5 365398016 467798015 102400000 48,8G Linux filesystem
Partition table entries are not in disk order.
Disk /dev/loop8: 40,86 MiB, 42840064 bytes, 83672 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/loop9: 452 KiB, 462848 bytes, 904 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
