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I have Windows installed on my SSD (sdb), but its recovery and EFI partitions were created by default on my HDD (sda). I have another partition on the HDD for storing some files.

This is the information I got from Ubiquity with a general description of each partition (taken from the Windows partitioning tool):

  • sda1: Windows recovery partition
  • sda2: Windows EFI partition
  • sda3: NTFS general use partition
  • sdb is occupied by one NTFS Windows partition.

When I tried to install Ubuntu as usual, it didn't recognize Windows. I read how to set up Ubuntu's partitions manually, but it said I couldn't do it while keeping the other sda partitions.

Is there a way to do it without losing them?

EDIT: Output of fdisk -lu:

Disk /dev/loop0: 1.6 GiB, 1742868480 bytes, 3404040 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: 82 MiB, 86011904 bytes, 167992 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: 140 MiB, 146841600 bytes, 286800 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: 1.6 MiB, 1691648 bytes, 3304 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: 12.2 MiB, 12804096 bytes, 25008 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: 21 MiB, 22003712 bytes, 42976 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: 3.3 MiB, 3411968 bytes, 6664 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: 931.5 GiB, 1000204886016 bytes, 1953525168 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: 9033DBB1-06EA-4D3F-80DE-DD7C2CBFA9B2

Device       Start        End    Sectors  Size Type
/dev/sda1     2048    1023999    1021952  499M Windows recovery environment
/dev/sda2  1024000    1228799     204800  100M EFI System
/dev/sda3  1259520 1783838719 1782579200  850G Microsoft basic data


Disk /dev/sdb: 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: 1E74C216-5FA5-4648-BDC5-0EC101622203

Device     Start       End   Sectors   Size Type
/dev/sdb1   2048 234438655 234436608 111.8G Microsoft basic data


Disk /dev/sdc: 14.6 GiB, 15664676864 bytes, 30595072 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: 0x01bf4af5

Device     Boot Start      End  Sectors  Size Id Type
/dev/sdc1  *     2048 30595071 30593024 14.6G  c W95 FAT32 (LBA)
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  • If you can't install Ubuntu, then where where you getting details of these sda partitions from? Windows can't see sda partitions. Or are you getting this data from a live USB stick? Even then if Ubuntu isn't installed it wouldn't give you this. – Paul Benson Apr 15 '18 at 20:17
  • @PaulBenson I got it from the Ubuntu USB. It's not copied and pasted, it's a general description of my partitions. – Smich Apr 16 '18 at 4:50
  • Make sure you have good backups. Boot files may not be where you think they are. Post this above so we have more details: sudo fdisk -lu Did you turn off Windows fast start up? askubuntu.com/questions/843153/… – oldfred Apr 16 '18 at 18:16
  • @oldfred I never actually installed Ubuntu, the information is from the USB stick. I expect this command won't work if I boot from a live installation, right? – Smich Apr 17 '18 at 15:33

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