Question “Install alongside Windows 10” gone from Ubuntu installer

[gordonfreemanjr]

I’m trying to install Ubuntu 18.04 alongside Win10, but after booting from the USB the option to install Ubuntu alongside the existing OS is gone.

I have shrunk existing partitions to create 90 GB worth of an unallocated space, which always did the trick. It doesn’t now: the option is gone.

Does it have something to do with the fact, that my disk has 4 partitions already? (c:/ windows 183 GB, 350 MB EFI System Partition, 619 MB OEM Partition and 202 GB Data partition, all preconfigured).

What do I do?

 

[Alabalcho]

Create extended partition first in the empty space

 

[gordonfreemanjr]

Create extended partition first in the empty space

Nope, still not there. Can just erase or do something else.

 

[Alabalcho]

It's quite possible that this option is no longer available in current distribution. So, if you have empty disk space, just create extended partition, and do manual partitioning afterthat.

 

[gordonfreemanjr]

It's quite possible that this option is no longer available in current distribution. So, if you have empty disk space, just create extended partition, and do manual partitioning afterthat.

18.04, you mean? It is. Done it myself couple times.