I am trying to install the Ubuntu distribution alongside Win 10, which came in preinstalled on the laptop[Lenovo IdeaPad Yoga 510-14IKB ].

I believe I have followed the instructions in the tutorials properly, defragmented and partitioned the hard drive (dedicated around 200 gigs for the second OS),used the unetbootin utility.

I booted from a flash drive into the Ubuntu live environment and tried to perform the installation, however the installer doesn't detect the other OS present.

In a couple of other issues somebody pointed out to use the 'something else' option, but never went into much detail and therefore I would like to ask whether it's a safe option and to be pointed at comprehensible instructions.

  • Did you turn off Windows fast start up? That is hibernation and then the Linux NTFS driver will not mount it. And even after you turn it off, later Windows updates may turn it back on. Have you updated UEFI? Some models of Yoga's needed UEFI updates. Partitioning: askubuntu.com/questions/743095/… & askubuntu.com/questions/343268/… & askubuntu.com/questions/221835/… – oldfred Feb 20 '18 at 14:56
  • You have a running and working Win10, set up partitions for Ubuntu and have trouble to install it from the LiveCD? What I do not get is why it is important for Linux to detect the other OS? It should install to whatever parrition you selected for it. Or are you talking about setting up grub boot manager at the end of the Ubuntu installation which is not detecting your Win10 install? In that case I would expect that you can not boot your windows any more. Maybe only I find your situation a bit confusing but it might be an idea to provide a bit more detail what you did and exactly what failed. – CatMan Feb 21 '18 at 0:12

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