Ubuntu 16.04 not installing properly

[Elias_Goebeler]

Hi,I am new to this forum the reason I joined was because I ran into some problems while installing Ubuntu 16.04.I downloaded Ubuntu 16.04 LTS from their website, then I used the Rufus USB converter to put it onto my flashdrive, I put it into my computer (it does not currently have any OS on it) and booted it up this was the first thing I saw
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After I chose to install Ubuntu it went to the Ubuntu Loading screen then went to this page
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From the online tutorials I have seen there should have been an option to try Ubuntu or install it but I continued
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I was not able to check the "Download updates while installing box" I clicked continue
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I was not able to select anything or edit anything I was only able to click "quit","back", or "install now" I clicked install now but it said "No root file system is defined, please correct this from the partitioning menu" Since I could not change anything I rebooted my computer and selected the "check disk for defects option
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It found no errors so I have no Idea what to do.I would greatly appreciate it if you could help me figure this out, thanks a lot!

[ubfan1]

Does your computer have a disk in it? Can you see the disk from the BIOS/UEFI settings? Maybe a cable is lose if the disk is present but not seen, or maybe a settings is wrong either in the BIOS, disk (jumpers on some) or cable (which connector).

[Elias_Goebeler]

I believe a simple loose cable was the problem, Ubuntu seems to be installing properly right now.Thanks for the help!