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When I try to install Ubuntu 20.04 (or 18.04), it doesn't give me an option to install alongside Windows, instead, it just says:

This computer currently has no detected operating systems

My fastboot is also disabled - which seems to be the solution for about everyone who faced this issue.

aayush-a
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1 Answers1

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Manually create the partitions. Choose Something Else in the menu. Now click on the Unallocated/Free space and click + button. Then set mountpoint as / and filesystem as ext4. This is the root partition. And click it and install Ubuntu there.

Wasif
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  • I have freed 75 GB from my C drive but when I open Ubuntu installation, it shows upwards of 80 GB. Could this cause any issues? Also, do I need to create partitions for swap and home (as explained here: https://askubuntu.com/a/783957/1007302)? I am fairly new to doing this manually, so I'm not sure how to proceed... – aayush-a Aug 02 '20 at 09:34
  • You should have freed up some space from primary partition of disk to install ubuntu, if not do it. And use that to install ubuntu. – Wasif Aug 02 '20 at 09:36
  • Have freed space on the primary partition only. – aayush-a Aug 02 '20 at 09:38
  • Then use that, make sure that is unallocated (unformatted space) – Wasif Aug 02 '20 at 09:38
  • It is unallocated. Will I need swap and home partitions? And will there be any issues because Ubuntu is showing more free than there is? – aayush-a Aug 02 '20 at 09:49
  • No, only creating the root partition is enough. The rest will be done by the system for tasks such as sizing home and swap. – Wasif Aug 02 '20 at 09:58