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Topic: No other O.S. on this Computer

Hi,
I have a Computer that has Linux Mint 17.3 installed on it. NO  Windows. When I try to install Ubuntu 16.04 next to Mint. Gparted says there are no other Operating Systems on this Computer??  My Computer is a Dell desktop Inspiron with a 1TB Hard Drive.  Why doesn’t Gparted see my Mint O.S.? And also if I try to Do any Partitioning, I can't The Menu at the top is Missing?   Thank You, bobo42813 

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Re: No other O.S. on this Computer

Do you have encrypted partitions or some other partition setup that Ubuntu does not recognize?

Would you be able to provide the output from the following two commands?

sudo fdisk -l -u

where one of the options is a lower case "L" and not the number one.

sudo parted /path-to-your-device unit s print

where /path-to-your-device is something like /dev/sda.

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Re: No other O.S. on this Computer

sudo fdisk -l -u

   Device Boot      Start         End      Blocks   Id  System
/dev/sda1   *        2048      499711      248832   83  Linux
/dev/sda2          501758  1953523711   976510977    5  Extended
/dev/sda5          501760  1953523711   976510976   8e  Linux LVM

Disk /dev/mapper/mint--vg-root: 993.7 GB, 993727086592 bytes
255 heads, 63 sectors/track, 120813 cylinders, total 1940873216 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 identifier: 0x00000000

Disk /dev/mapper/mint--vg-root doesn't contain a valid partition table      ?? Is this my Problem?  If so How can I fix this?

And I don't know which of the three other dev you want?
Thank you,
bobo42813

Disk /dev/mapper/mint--vg-swap_1: 6169 MB, 6169821184 bytes
255 heads, 63 sectors/track, 750 cylinders, total 12050432 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 identifier: 0x00000000

Disk /dev/mapper/mint--vg-swap_1 doesn't contain a valid partit

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Re: No other O.S. on this Computer

From the fdisk output it appears that the existing Linux OS is installed under a Logical Volume Manager.  LVM2 is an extra layer of complexity that sits on top of partitions and devices.  GParted supports resizing LVM2 Physical Volumes only.  You will need to use other tools, such as from the command line to resize LVM2 Logical Volumes.

I highly recommend that you read up on LVM2 before attempting to change it.  For example A Beginner's Guide To LVM

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Re: No other O.S. on this Computer

gedakc wrote:

From the fdisk output it appears that the existing Linux OS is installed under a Logical Volume Manager.  LVM2 is an extra layer of complexity that sits on top of partitions and devices.  GParted supports resizing LVM2 Physical Volumes only.  You will need to use other tools, such as from the command line to resize LVM2 Logical Volumes.

I highly recommend that you read up on LVM2 before attempting to change it.  For example A Beginner's Guide To LVM

Thank you,
bobo42813