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I have installed Ubuntu 16 from DVD, but still only get Windows 10 log in. I chose the option 'install alongside Windows 10', and let it automatically size disk.

How do I see Ubuntu at log in?

sudo fdisk -l

The above cmd outputs:

Disk /dev/ram0: 64 MiB, 67108864 bytes, 131072 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


Disk /dev/ram1: 64 MiB, 67108864 bytes, 131072 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


Disk /dev/ram2: 64 MiB, 67108864 bytes, 131072 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


Disk /dev/ram3: 64 MiB, 67108864 bytes, 131072 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


Disk /dev/ram4: 64 MiB, 67108864 bytes, 131072 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


Disk /dev/ram5: 64 MiB, 67108864 bytes, 131072 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


Disk /dev/ram6: 64 MiB, 67108864 bytes, 131072 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


Disk /dev/ram7: 64 MiB, 67108864 bytes, 131072 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


Disk /dev/ram8: 64 MiB, 67108864 bytes, 131072 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


Disk /dev/ram9: 64 MiB, 67108864 bytes, 131072 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


Disk /dev/ram10: 64 MiB, 67108864 bytes, 131072 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


Disk /dev/ram11: 64 MiB, 67108864 bytes, 131072 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


Disk /dev/ram12: 64 MiB, 67108864 bytes, 131072 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


Disk /dev/ram13: 64 MiB, 67108864 bytes, 131072 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


Disk /dev/ram14: 64 MiB, 67108864 bytes, 131072 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


Disk /dev/ram15: 64 MiB, 67108864 bytes, 131072 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


Disk /dev/loop0: 1.4 GiB, 1459982336 bytes, 2851528 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: 21CEDCE4-4D19-414B-B17E-ABAD653E02D1

Device          Start        End    Sectors   Size Type
/dev/sda1        2048    2050047    2048000  1000M Windows recovery environment
/dev/sda2     2050048    2582527     532480   260M EFI System
/dev/sda3     2582528    3606527    1024000   500M Lenovo boot partition
/dev/sda4     3606528    3868671     262144   128M Microsoft reserved
/dev/sda5     3868672 1037878334 1034009663 493.1G Microsoft basic data
/dev/sda6  1902323712 1953523711   51200000  24.4G Windows recovery environment
/dev/sda7  1037879296 1886214143  848334848 404.5G Linux filesystem
/dev/sda8  1886214144 1902323711   16109568   7.7G Linux swap

Partition table entries are not in disk order.

sudo fdisk -l /dev/sd*
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: 21CEDCE4-4D19-414B-B17E-ABAD653E02D1

Device          Start        End    Sectors   Size Type
/dev/sda1        2048    2050047    2048000  1000M Windows recovery environment
/dev/sda2     2050048    2582527     532480   260M EFI System
/dev/sda3     2582528    3606527    1024000   500M Lenovo boot partition
/dev/sda4     3606528    3868671     262144   128M Microsoft reserved
/dev/sda5     3868672 1037878334 1034009663 493.1G Microsoft basic data
/dev/sda6  1902323712 1953523711   51200000  24.4G Windows recovery environment
/dev/sda7  1037879296 1886214143  848334848 404.5G Linux filesystem
/dev/sda8  1886214144 1902323711   16109568   7.7G Linux swap

Partition table entries are not in disk order.
Disk /dev/sda1: 1000 MiB, 1048576000 bytes, 2048000 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: 0x73736572

Device      Boot      Start        End    Sectors   Size Id Type
/dev/sda1p1      1920221984 3736432267 1816210284   866G 72 unknown
/dev/sda1p2      1936028192 3889681299 1953653108 931.6G 6c unknown
/dev/sda1p3               0          0          0     0B  0 Empty
/dev/sda1p4        27722122   27722568        447 223.5K  0 Empty

Partition 4 does not start on physical sector boundary.
Partition table entries are not in disk order.
Disk /dev/sda2: 260 MiB, 272629760 bytes, 532480 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: 0x500a0dff

Device      Boot      Start        End    Sectors   Size Id Type
/dev/sda2p1      1948285285 3650263507 1701978223 811.6G 6e unknown
/dev/sda2p2               0          0          0     0B 74 unknown
/dev/sda2p4        28049408   28049848        441 220.5K  0 Empty

Partition 1 does not start on physical sector boundary.
Partition table entries are not in disk order.
Disk /dev/sda3: 500 MiB, 524288000 bytes, 1024000 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: 0x500a0dff

Device      Boot      Start        End    Sectors   Size Id Type
/dev/sda3p1      1948285285 3650263507 1701978223 811.6G 6e unknown
/dev/sda3p2               0          0          0     0B 74 unknown
/dev/sda3p4        28049408   28049848        441 220.5K  0 Empty

Partition 1 does not start on physical sector boundary.
Partition table entries are not in disk order.
Disk /dev/sda4: 128 MiB, 134217728 bytes, 262144 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
Disk /dev/sda5: 493.1 GiB, 529412947456 bytes, 1034009663 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: 0x73736572

Device      Boot      Start        End    Sectors   Size Id Type
/dev/sda5p1      1920221984 3736432267 1816210284   866G 72 unknown
/dev/sda5p2      1936028192 3889681299 1953653108 931.6G 6c unknown
/dev/sda5p3               0          0          0     0B  0 Empty
/dev/sda5p4        27722122   27722568        447 223.5K  0 Empty

Partition 4 does not start on physical sector boundary.
Partition table entries are not in disk order.
Disk /dev/sda6: 24.4 GiB, 26214400000 bytes, 51200000 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: 0x73736572

Device      Boot      Start        End    Sectors   Size Id Type
/dev/sda6p1      1920221984 3736432267 1816210284   866G 72 unknown
/dev/sda6p2      1936028192 3889681299 1953653108 931.6G 6c unknown
/dev/sda6p3               0          0          0     0B  0 Empty
/dev/sda6p4        27722122   27722568        447 223.5K  0 Empty

Partition 4 does not start on physical sector boundary.
Partition table entries are not in disk order.
Disk /dev/sda7: 404.5 GiB, 434347442176 bytes, 848334848 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
Disk /dev/sda8: 7.7 GiB, 8248098816 bytes, 16109568 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
ubuntu@ubuntu:~$
L. D. James
  • 25,444
EddieG
  • 13

1 Answers1

2

It looks like you may have inadvertently installed grub on the wrong drive... possibly a partition or a USB stick.

Make sure Grub is installed on the specific boot drive (most likely /dev/sda). You can do this by reinstalling grub with these steps:

Boot to your live media (your live ubuntu install disk or usb stick). Run the Try Ubuntu option. Then go to a terminal shell and run these commands:

Step 1:

$ sudo mount /dev/sdaX /mnt # Make "X" the partition that has Ubuntu installed (i.e. /dev/sda2)

Step 2:

$ for i in /sys /proc /run /dev; do sudo mount --bind "$i" "/mnt/$i"; done

Step 3:

$ sudo chroot /mnt

Step 4:

# update-grub

Step 5:

# grub-install /dev/sdX # (x is the hard drive that has linux installed (i.e. /dev/sda)
    update-grub

Now reboot the system.

Using the command $ sudo fdisk -l /dev/sd* on my system shows:

Device     Boot     Start        End    Sectors  Size Id Type
/dev/sda1            2048  102402047  102400000 48.8G 83 Linux
/dev/sda2  *    102402048  204802047  102400000 48.8G 83 Linux
/dev/sda3       204802048  245762047   40960000 19.5G 82 Linux swap / Solaris
/dev/sda4       245762048 3907028991 3661266944  1.7T 83 Linux

In this example Linux is installed on /dev/sda1 and /dev/sda2.

Final Resolution

The issue was resolve via chat with ensuring the install was performed in UEFI mode and choosing Ubuntu in the Bios boot option.

Ubuntu presents both the Windows and Ubuntu menu option in the Grub menu. If the Bio Boot option (order) is set to Windows the system will boot directly to Windows. Windows doesn't recognize other install OSes.

L. D. James
  • 25,444